GE Industrial Solutions SSTW005A0F User Manual

GE

t

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

RoHS Complian

Applications

 Wireless Networks

 Hybrid power architectures

 Optical and Access Network Equipment

 Enterprise Networks including Power over Ethernet (PoE)

 Industrial markets

Options

 Negative Remote On/Off logic

 Surface Mount/Tape and Reel (-SR Suffix)

Features

 Compliant to RoHS II EU “Directive 2011/65/EU (-Z versions)

 Compliant to REACH Directive (EC) No 1907/2006

 Ultra-wide Input Voltage Range, 36Vdc to 75Vdc

 No minimum load

 High efficiency – 87.5% at full load (Vin=48Vdc)

 Constant switching frequency

 Low output ripple and noise

 Small Size and low profile, follows industry standard 1x1

footprint

27.9mm x 24.4mm x 8.5mm (MAX)
(1.10 x 0.96 x 0.335 in)

 Surface mount (SMT) or Through hole (TH)

 Reflow process compliant, both SMT and TH versions

 Positive Remote On/Off logic

 Output overcurrent/voltage protection (hiccup)

 Over-temperature protection

 Output Voltage adjust: 90% to 110% of V

 Wide operating temperature range (-40°C to 85°C)

*

 UL

Recognized to UL60950-1, CAN/CSA† C22.2 No.60950-1,

and EN60950-1(VDE

 CE mark meets 2006/95/EC directive
 Meets the voltage and current requirements for ETSI 300-

132-2 and complies with and licensed for Basic insulation
rating per EN60950-1

 2250 Vdc Isolation tested in compliance with IEEE 802.3

standards

**

 ISO

9001 and ISO 14001 certified manufacturing facilities

‡

0805-1) Licensed

o,nom

§

¤

PoE

Description

The SSTW005A0F Barracuda™ series power modules are isolated dc-dc converters that operate over an ultra-wide input voltage
range of 36Vdc -75Vdc and provide a single precisely regulated output voltage at 3.3Vdc. This series is a low cost, smaller size
alternative to the existing LW/LAW/LC/SC/SW with enhanced performance parameters. The output is fully isolated from the input,
allowing versatile polarity configurations and grounding connections. The modules exhibit high efficiency of 87.5% typical at full
load. Built-in filtering for both input and output minimizes the need for external filtering. The module is fully self-protected with
output over-current and over-voltage, over-temperature and input under voltage shutdown control. Optional features include
negative or positive on/off logic and SMT connections.

* UL is a registered trademark of Underwriters Laboratories, Inc.

†

CSA is a registered trademark of Canadian Standards Associat ion.

‡

VDE is a trademark of Verband Deutscher Elektrotechnik er e.V.

§ This product is intended for integration into end- user equipment . All of the required procedures of end-use equipment should be followed.
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
** ISO is a registered trademark of the Internat ional Organization of Standards.

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 1

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.

Parameter Device Symbol Min Max Unit

Input Voltage (Continuous) All V

Transient (100ms) All V

Operating Ambient Temperature All T

(see Thermal Considerations section)

Storage Temperature All T

Altitude* All

I/O Isolation Voltage (100% factory Hi-Pot tested) All

IN

IN, trans

A

stg

 

* For higher altitude applications, contact your GE Sales Representative for alternative conditions of use.

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltage All VIN 36 48 75 Vdc

Input No Load Current

VIN = 48Vdc, (IO = 0, module enabled) All I

Input Stand-by Current

(VIN = 48Vdc, module disabled)

Maximum Input Current (VIN=36Vdc, IO=I

Inrush Transient All I2t 0.05 A2s
Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 12μH source impedance; V
see Test configuration section)

Input Ripple Rejection (120Hz) All 60 dB

EMC, EN55022 See EMC Considerations section

) All I

O, max

=0V to 75Vdc, IO= I

IN

Omax

;

All I

All 30 mA

CAUTION: This power module is not internally fused. An input line fuse must always be used.

This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of
complex power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum safety
and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 3 A
(see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input
current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.

30 mA

IN,No load

4 6 mA

IN,stand-by

IN,max

-0.3 80 Vdc

-0.3 100 Vdc

-40 85 °C

-55 125 °C

4000 m

2250 Vdc

1.1 Adc

p-p

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 2

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Electrical Specifications (continued)

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point

(VIN=48Vdc, IO=I

O, max

, TA=25°C)

Output Voltage

(Over all operating input voltage, resistive load, and temperature
conditions until end of life)

Adjustment Range

Selected by external resistor

Output Regulation

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

) All

IN, max

to I

) All

O, max

to T

ref=TA, min

) All

A, max

Output Ripple and Noise on nominal output

Measured with 10uF Tantalum||1uF ceramic

(VIN=48Vdc, IO=80%I

=25°C)

O, max, TA

RMS (5Hz to 20MHz bandwidth)

Peak-to-Peak (5Hz to 20MHz bandwidth)

External Capacitance All C

Output Current All I

Output Current Limit Inception (Hiccup Mode) All I

Output Short-Circuit Current

VO ≤ 250 mV @ 25°C

Efficiency

=48Vdc, TA=25°C, IO=I

V

IN

O, max

Switching Frequency (Fixed)

VIN=48Vdc and IO= I

O, max

Dynamic Load Response
(IO/t=0.1A/s, VIN=48Vdc, TA=25°C, CO =100F)

Load Change from IO= 50% to 75% or 25% to 50% of I

:

O,max

Peak Deviation All Vpk

Settling Time (Vo<10% peak deviation) All ts

V

3.3 V

O

All V

All V

O, set

O

O, adj

All

All I

O, max

o

O, lim

O, s/c

All η 86.0 87.5

All f

sw

3.25 3.30 3.35 Vdc

-3.0

-10






0.05 0.2 % V

0.05 0.2 % V

 

 
 

0

0




5.5 7.0

 

+3.0 % V

+10 % V

1.0 % V

25 mV

75 mV

1000 μF

5.0 Adc



0.8 A





350






3.0

800




% V

pk-pk

Adc

rms

%

kHz

s

O, set

O, set

O, set

O, set

O, set

rms

O, set

Isolation Specifications

Parameter Symbol Min Typ Max Unit

Isolation Capacitance C

Isolation Resistance R

I/O Isolation Voltage All

iso

iso



10

 

1000

 



2250 Vdc

pF

MΩ

General Specifications

Parameter

Calculated Reliability based upon Telcordia SR-332 Issue 2: Method I Case 3

=48Vdc, IO=80%xI

(V

IN

, TA=40°C, airflow = 200 LFM, 90% confidence)

O, max

Weight

FIT 144.0 109/Hours

MTBF 6,946,199 Hours

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 3

Min Typ Max Unit



8.0 (0.28)



g (oz.)

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.

Parameter Device Symbol Min Typ Max Unit

Remote On/Off Signal Interface

(VIN=V

Signal referenced to V

Negative Logic: device code suffix “1”

Logic Low = module On, Logic High = module Off

Positive Logic: No device code suffix required

Logic Low = module Off, Logic High = module On

Turn-On Delay and Rise Times
(IO=80% of I

Case 1: Input power is applied for at least 1second, and then the

On/Off input is set from OFF to ON (T
V

Case 2: On/Off input is set to Module ON, and then input power is

applied (T

Output voltage Rise time (time for Vo to rise from 10%
of V

Output Voltage Overshoot

(IO=80% of I

Output Overvoltage Protection

Input Undervoltage Lockout

to V

IN, min

Logic Low - Remote On/Off Current (V

; open collector or equivalent,

IN, max

terminal)

IN-

= -0.7Vdc) All I

on/off

Logic Low - On/Off Voltage All V

Logic High Voltage (I

= 0Adc) All V

on/off

Logic High maximum allowable leakage current All I

, TA=25°C)

O, max

= 10% of V

O

to 90% of V

o,set

= on/off pin transition until

)

O, set

= VIN reaches V

delay

)

o, set

, VIN= 48Vdc, TA=25°C)

O, max

delay

until VO = 10% of V

IN, min

O,set

)

All

All

All T

All V

Turn-on Threshold All V

Turn-off Threshold All V

Hysterisis All V

on/off

on/off

on/off

on/off

T

delay

Case1

T

delay

Case2

O, limit

uv/on

uv/off

rise

hyst

 

-0.7

2.0




 







10 20 ms

10 20 ms

5 10 ms

0.15 mA

0.8 Vdc

18 Vdc

25 μA

3 % V

4.0 6.5 Vdc



30 32


34 36 V



2.0



Vdc

Vdc

O, set

dc

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 4

G

S

3

C

T

p

OUTPUT VOLTAGE On/Off VOLTAGE

E

n

s

a

v

i

OUTPUT VOLTAGE On/Off VOLTAGE

c

d

s

O

P

n

T

T

s

4

W

©

t

O

s

E

e

v

C

y

F

r

r

n

VO

(V) (1V/div) V

IN

(V) (20V/div)

r

)

t

v

e

t

VO

(V) (1V/div) V

IN

(V) (20V/div)

t

t

e

e

O

n

t

%

t

t

h

V

e

e

V

=

Data S

eet

STW00

6-75Vdc I

haracteri

he following fi
ositive or neg

EFFICIENCY,  (%)

Figure 1. Con

5A0F Ba

put; 3.3V

tic Curve

gures provide

tive remote

OUT

verter Efficie

rracuda

c, 5A, 15

typical charac

n/Off logic.

UT CURRENT, IO

cy versus Ou

™ Serie

Output

teristics for th

(A)

put Current.

; DC-D

SSTW005A0

Conver

(3.3V, 5A) at 2

(A)

IN

INPUT CURRENT, I

Figu

e 2. Convert

(V) (100mV/div)

O

er Pow

5oC. The figur

INPUT V

r Input Curre

r Modu

s are identica

LTAGE, VIN (V)

t versus Inpu

les

l for either

t Voltage.

(V) (100mV/div)

O

OUTPUT VOLTAGE

V

Figure 3. Typ

(V) (2V/div)

On/Off

(V) (1V/div) V

O

V

Figure 5.Typi
logic version

cal output rip

al Start-up U

shown (VIN =

IME, t (2s/div)

ple and noise

IME, t (5ms/div)

ing Remote

8V, Io = I

o,max

(Io = I

o,max

n/Off, negati

)

.

).

OUTPUT CURRENT OUTPUT VOLTAGE

Figu
Cha
CO>1

e Figu

I

o,max

Io(A) (2A/div) V

e 4. Transien
ge from 50%

00μF

OUTPUT VOLTAGE INPUT VOLTAGE

e 6. Typical S

.

TIME,

Response to

to 75% to 50

TIME,

art-up Using

(1ms/div)

0.1A/µS Dyna

(5ms/div)

Input Voltag

of full load,

mic Load

in=48V,

(V

IN

= 48V, I

o

March 26, 2013

2012 General

lectric Compan

. All rights reser

ed.

Pag

5

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Test Configurations

Vout+

V

Vout-

x 100 %

CURRENT PROBE

33μF

SC O P E

O

Vin+

Vin-

RESI STI V E
LO A D

R

contact Rdistribution

R

contact Rdistribution

R

LOAD

TO OSCILLOSCOPE

L

TEST

12μH

CS 220μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

E.S.R.<0.1

@ 20°C 100kHz

source inductance (L
possible battery impedance. Measure current as shown
above.

) of 12μH. Capacitor CS offsets

TEST

Figure 7. Input Reflected Ripple Current Test Setup.

COPPER STRIP

V

(+)

O

1uF .

V

( – )

O

NOTE: All voltage measurements to be take n at the module

terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.

10uF

GROUND PLANE

Figure 8. Output Ripple and Noise Test Setup.

R

R

contact

distribution

R

R

contact

distribution

NOTE: All voltage measurements to be taken at the module

terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.

Vin+

V

IN

Vin-

Figure 9. Output Voltage and Efficiency Test Setup.

. I

V

O

Efficiency

=



VIN. I

O

IN

Design Considerations

Input Source Impedance

The power module should be connected to a low
ac-impedance source. Highly inductive source impedance can
affect the stability of the power module. For the test
configuration in Figure 7, a 33μF electrolytic capacitor
(ESR<0.7 at 100kHz), mounted close to the power module
helps ensure the stability of the unit. Consult the factory for
further application guidelines.

Safety Considerations

For safety-agency approval of the system in which the power
module is used, the power module must be installed in
compliance with the spacing and separation requirements of
the end-use safety agency standard, i.e., UL 60950-1-3, CSA
C22.2 No. 60950-00, and VDE 0805 (IEC60950, 3

If the input source is non-SELV (ELV or a hazardous voltage
greater than 60 Vdc and less than or equal to 75Vdc), for the
module’s output to be considered as meeting the requirements
for safety extra-low voltage (SELV), all of the following must be
true:

 The input source is to be provided with reinforced

insulation from any other hazardous voltages, including
the ac mains.

 One V

pin and one V

IN

the input and output pins are to be kept floating.

 The input pins of the module are not operator accessible.

 Another SELV reliability test is conducted on the whole

system (combination of supply source and subject
module), as required by the safety agencies, to verify that
under a single fault, hazardous voltages do not appear at
the module’s output.

Note: Do not ground either of the input pins of the module

without grounding one of the output pins. This may
allow a non-SELV voltage to appear between the
output pins and ground.

The power module has extra-low voltage (ELV) outputs when
all inputs are ELV.

For input voltages exceeding –60 Vdc but less than or equal to
–75 Vdc, these converters have been evaluated to the
applicable requirements of BASIC INSULATION between
secondary DC MAINS DISTRIBUTION input (classified as TNV-2
in Europe) and unearthed SELV outputs.

The input to these units is to be provided with a maximum 3A
time-delay fuse in the ungrounded lead.

pin are to be grounded, or both

OUT

rd

Edition).

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 6

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Feature Description

Remote On/Off

Two remote on/off options are available. Positive logic turns
the module on during a logic high voltage on the on/off pin,
and off during a logic low. Negative logic remote on/off, device
code suffix “1”, turns the module off during a logic high and on
during a logic low.

Vin+

I

on/off

V

on/off

Figure 10. Circuit configuration for using Remote On/Off
Implementation.

To turn the power module on and off, the user must supply a
switch (open collector or equivalent) to control the voltage

) between the ON/OFF terminal and the VIN(-) terminal.

(V

on/off

Logic low is 0V ≤ V
logic low is 1mA, the switch should be maintain a logic low
level whilst sinking this current.

During a logic high, the typical V
is 2.4V, and the maximum allowable leakage current at V

2.4V is 25μA.
If not using the remote on/off feature:
For positive logic, leave the ON/OFF pin open.
For negative logic, short the ON/OFF pin to V

ON/OFF

Vin-

≤ 0.8V. The maximum I

on/off

Overcurrent Protection

To provide protection in a fault (output overload) condition, the
unit is equipped with internal current-limiting circuitry and can
endure current limiting continuously. At the point of
current-limit inception, the unit enters hiccup mode. The unit
operates normally once the output current is brought back into
its specified range. The average output current during hiccup
is 10% I

O, max

.

Overtemperature Protection

To provide protection under certain fault conditions, the unit is
equipped with a thermal shutdown circuit. The unit will
shutdown if the thermal reference point Tref (Figure 16),
exceeds 125
intended as a guarantee that the unit will survive
temperatures beyond its rating. The module will automatically
restart upon cool-down to a safe temperature.

o

C (typical), but the thermal shutdown is not

Input Undervoltage Lockout

At input voltages below the input undervoltage lockout limit,
the module operation is disabled. The module will only begin
to operate once the input voltage is raised above the
undervoltage lockout turn-on threshold, V
operating, the module will continue to operate until the input

Vout+

TRIM

Vout-

during a

on/off

generated by the module

on/off

(-).

IN

. Once

UV/ON

on/off

voltage is taken below the undervoltage turn-off threshold,

.

V

UV/OFF

Over Voltage Protection

The output overvoltage protection consists of circuitry that
independently monitors the output voltage, and shuts the
module down if the output voltage exceeds specified limits.
The module shall contain hiccup restart capability.

Output Voltage Programming

Trimming allows the user to increase or decrease the output
voltage set point of the module. This is accomplished by
connecting an external resistor between the TRIM pin and
either the Vout+ pin or the Vout- pin.

Trim Down – Decrease Output Voltage

By connecting an external resistor between the TRIM pin and
Vout+ pin (Radj-down), the output voltage set point decreases
(see figure 11). The following equation determines the external
resistor value to obtain an output voltage change from V
to the desired V

R

downadj

 H

Note: Values for G and H are defined in Table 1.

Module G H K

SSTW005A0F 5110 2050 0.8

Table 1. Trim Constants SSTW series

=

Vin+

ON/OFF

Vin-

Figure 11. Circuit Configuration to Decrease Output Voltage.

:

o,adj



adjo

,






Vout+

TRIM

Vout-



)5.2(



VV

adjonomo

,,



GV



)(




R

adj-down



Trim Up – Increase Output Voltage

By connecting an external resistor between the TRIM pin and
Vout- pin (Radj-up), the output voltage set point increases (see
figure 12). The following equation determines the external
resistor value to obtain an output voltage change from V
to the desired V

upadj

 H

R

Note: Values for G, H and K are defined in Table 1.
The combination of the output voltage adjustment and the

output voltage initial tolerance must not exceed the allowable
trim range of 90% to 110% of the nominal output voltage as
measured between the Vout+ and Vout- pins.

:

o,adj




,



5.2



G

adjo











)5.2(

KV



R

LOAD

o,nom

o,nom

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 7

G

S

3

M

F

F

TTaTFto

R

R

T

T

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u

Data Sh

et

STW00

6-75Vdc I

eature D

Vin+

ON/OFF

Vin-

igure 12. Circ

he SSTW pow
herefore, as t
vailable outp

rim Example

or SSTW005A

3.10V:

(downadj

1downadj

5A0F Ba

put; 3.3V

scriptions

it Configura

r modules ha

e output volt

t power is red

F, nominal 3.










3

Vout+

TRIM

Vout-



280,

rracuda

c, 5A, 15

(continued)

ion to Increa

e a fixed curr

ge is adjusted

ced.

V module. To



)5.21.3

110

1.33.3(

R

adj-up

 2050

™ Serie

Output

R

LOAD

e Output Volt

nt-limit set p

down, the

trim module d








; DC-D

ge.

int.

own

Conver

re 13. Therm

Figu

(A)

O

er Pow

l Test Setup .

r Modu

les

hermal C

he power mo
nvironments;

help ensure

onsiderations

ower dissipati

eduction in th

r

esult in an inc

r

he thermal da

easurements

t

hermo-couple

t

mperatures:
eramic capac
onductors, w

t

mperature. F

odule output
omponents re

t

mperature, a

r

epeated for a

f

mily of modu

arch 26, 2013

nsiderati

ules operate i

owever, suffi

eliable opera

include ambi

on, and the n

operating te

ease in reliabi

ta presented
taken in a wi

instrumentati

ETs, diodes, c
tors, opto-isol
ile controlling

r a given airfl
power is incre

aches its maxi

defined in IP

ifferent airflo

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MBIENT TEM

urrent Derati

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and Place

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STW-SR serie

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designed for

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should be suc

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r

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re 18. Pick an

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or further info
lease refer to

ayout Co

he SSTW pow
sed in fine pit
omponent cle

odule and th

opper areas o

odule. Also a

ower module.

or additional l

heet.

March 26, 2013

signature us

rmation on de

he FLTR100V

sideratio

r module seri

h system car

rance betwe

mounting bo
n the outer la
void placing vi

yout guide-li

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s are low pro
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er directly un

a interconnec

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r, SSTWA.

compliance,

FDS01-043EP

ile in order to
. As such,
of the power

void placing

erneath the p

s underneath

FLTR100V10

2012 General

).

e

wer

the

data

lectric Compan

Z’ plane heigh

no

inal with an R

No

zle Recomm

The

module weigh

fra

e constructio

whe

n compared

Vari

bles such as

plac

ement speed

pro

ess.

The

minimum rec

ope

ation is 5mm.

will

afely fit withi

6.5

m.

. All rights reser

s in mm [in].

Place Locati

t of the pick a

S tolerance o

ndations

has been ke
. Even so, the

ith conventio

ozzle size, tip

hould be con

mmended no
The maximu

the allowable

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n.

d place locati

+/-0.25 mm.

t to a minimu

have a relati

al SMT compo
style, vacuum
idered to opti

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nozzle outer
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by using op

ely large ma
nents.
pressure and

ize this

r reliable

iameter, whic
acing, is

Pag

n

s

h

9

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Oblong or oval nozzles up to 11 x 6 mm may also be used
within the space available.

For further information please contact your local GE Technical
Sales Representative.

Reflow Soldering Information

These power modules are large mass, low thermal
resistance devices and typically heat up slower than other
SMT components. It is recommended that the customer
review data sheets in order to customize the solder reflow
profile for each application board assembly.

The following instructions must be observed when SMT
soldering these units. Failure to observe these instructions
may result in the failure of or cause damage to the modules,
and can adversely affect long-term reliability.

There are several types of SMT reflow technologies currently
used in the industry. These surface mount power modules
can be reliably soldered using natural forced convection, IR
(radiant infrared), or a combination of convection/IR. The
recommended linear reflow profile using Sn/Pb solder is
shown in Figure 19 and 20. For reliable soldering the solder
reflow profile should be established by accurately
measuring the modules CP connector temperatures.

300

250

200

150

10 0

REFLOW TEMP (C)

50

0

Pe ak Temp 235oC

Heat zone

oCs-1

max 4

Soak zone
30-240s

P reheat zone

oCs-1

max 4

REFLOW TIME (S)

T
205

lim

Cooling
zo ne
1- 4

above

o

C

oCs-1

Figure 19. Recommended Reflow Profile for Sn/Pb solder.

240

235

230

225

220

215

210

MAX TEMP SOLDER (C)

205

200

0 10203040 5060

Figure 20. Time Limit, T

TIME LIMIT (S)

, Curve Above 205oC Reflow .

lim

Lead Free Soldering

The –Z version SMT modules of the SSTW series are lead-free
(Pb-free) and RoHS compliant and are compatible in a Pb-free
soldering process. Failure to observe the instructions below
may result in the failure of or cause damage to the modules
and can adversely affect long-term reliability.

300

Per J-STD-020 Rev. C

250

200

150

Heating Zone
1°C/Second

100

Reflow Temp (°C)

50

0

Peak Te mp 260°C

* Min. Time Above 235°C
15 Seconds

*Time Above 217°C

60 Seconds

Reflow Time (Seconds)

Figure 21. Recommended linear reflow profile using
Sn/Ag/Cu solder.

MSL Rating

The SSTW001A3B series SMT modules have a MSL rating of 2a.

Cooling
Zone

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 10

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Surface Mount Information (continued)

Pb-free Reflow Profile

Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for Nonhermetic
Solid State Surface Mount Devices) for both Pb-free solder
profiles and MSL classification procedures. This standard
provides a recommended forced-air-convection reflow profile
based on the volume and thickness of the package (table 4-2).
The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The
recommended linear reflow profile using Sn/Ag/Cu solder is
shown in Figure 22.

Layout Recommendations

Dimensions are in millimeters and [inches].
Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (unless otherwise indicated)
x.xx mm  0.25 mm [x.xxx in  0.010 in.]

Post Solder Cleaning and Drying Considerations

Post solder cleaning is usually the final circuit board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both the
reliability of a power module and the testability of the
finished circuit board assembly. For guidance on
appropriate soldering, cleaning and drying procedures, refer

to Lineage Power Board Mounted Power Modules:
Soldering and Cleaning Application Note (AN04-001).

SMT Layout

Through Hole Layout

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 11

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Packaging Details

The SSTW005A0F-SR series SMT versions are supplied in tape & reel as standard. Details of tape dimensions are shown
below. Modules are shipped in quantities of 150 modules per reel.

Tape Dimensions

Dimensions are in millimeters and [inches].
Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (unless otherwise indicated)
x.xx mm  0.25 mm [x.xxx in  0.010 in.]

The SSTW005A0F - series Through Hole versions are supplied in trays as standard. Details of tray dimensions are shown
below. Modules are shipped in quantities of 75 modules per box.

Tray Dimensions

Dimensions are in millimeters.
Tolerances: x.x mm  0.5 mm (unless otherwise indicated)
x.xx mm  0.25 mm

Material PET (1mm)

Max surface

resistivity

Color Clear

Capacity 25power modules

Min order

quantity

9

-1011/PET

10

75pcs (1 box of 3 full

trays + 1 empty top

tray)

March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 12

G

S

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1

Data S

eet

STW00

6-75Vdc I

echanica

imensions ar

olerances: x.x

x.x

5A0F Ba

put; 3.3V

l Outline f

in millimeter

mm  0.5 mm

mm  0.25

Top View

ide View

rracuda

c, 5A, 15

r SSTW00

and [inches].

[x.xx in.  0.02

m [x.xxx in 

™ Serie

Output

5A0F Surf

in.] (unless ot

.010 in.]

; DC-D

ce-Mount

erwise indica

Conver

Module

ed)

er Pow

r Modu

les

Bo

Pin Fu

1
2
3 ON
4
5 T
6

March 26, 2013

tom View

ction

n +
in ­/OFF

ut -

IM

ut +

2012 General

lectric Compan

. All rights reser

ed.

Page

3

G

S

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SBot

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Data Sh

et

STW00

6-75Vdc I

echanica

imensions ar

olerances: x.x

x.x

5A0F Ba

put; 3.3V

l Outline f

in millimeter

mm  0.5 mm

mm  0.25

Top View

ide View

rracuda

c, 5A, 15

r SSTW00

and [inches].

[x.xx in.  0.02

m [x.xxx in 

™ Serie

Output

5A0F Thro

in.] (unless ot

.010 in.]

; DC-D

gh Hole

erwise indica

Conver

odule

ed)

er Pow

r Modu

les

Pin

1
2
3 ON
4
5 T
6

arch 26, 2013

tom View

Fun

tion

i

n +

n -

OFF

ut -

IM

o

ut +

2012 General

lectric Compan

. All rights reser

ed.

Page

4

GE

Data Sheet

SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 3.3Vdc, 5A, 15W Output

Ordering Information

Please contact your GE Sales Representative for pricing, availability and optional features.

Device Codes

Device Code

SSTW005A0F41Z 48V (36-75Vdc) 5.0A 3.3V Negative Through hole 150030881
SSTW005A0F41-SRZ 48V (36-75Vdc) 5.0A 3.3V Negative Surface mount 150030880

Device Options

Input

Voltage Range

Output

Current

Output

Voltage

Remote

On/Off Logic

Connector

Type

Comcode

Contact Us

For more information, call us at

USA/Canada:

[phone], or [phone]

Asia-Pacific:

+86.021.54279977*808

Europe, Middle-East and Africa:

+49.89.878067-280

India:
+91.80.28411633

March 26, 2013 ©2012 General Electric Company. All rights reserved. Version 1.0

www.ge.com/powerelectronics