Datasheet PSRDA05-4, PSRDA12-4, PSRDA15-4, PSRDA3.3-4 Datasheet (PROTEK)

PSRDA3.3-4

05096

Only One Name Means ProTek’Tion™

STEERING DIODE / TVS ARRAY COMBO

APPLICATIONS

✔ Ethernet - 10/100 Base T
✔ Computer I/O Ports - SCSI, FireWire & USB
✔ Set-Top Box Protection
✔ Video Card

IEC COMPATIBILITY (EN61000-4)

✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
✔ 61000-4-4 (EFT): 40A - 5/50ns
✔ 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-Gnd) & Level 3(Line-Line)

FEATURES

✔ 500 Watts Peak Pulse Power per Line (tp=8/20µs)
✔ Unidirectional Configuration
✔ Available in 4 Voltage Types: 3.3V to 15V
✔ Protects Up to Four (4) I/O Ports
✔ ESD Protection > 40 kilovolts

✔ ✔

✔

LOW CAPACITANCE: 15pF

✔ ✔

thru

PSRDA15-4

SO-8

MECHANICAL CHARACTERISTICS

✔ Molded JEDEC SO-8 Package
✔ Weight 15 milligrams (Approximate)
✔ Flammability rating UL 94V-0
✔ 12mm Tape and Reel Per EIA Standard 481
✔ Marking: Logo, Marking Code, Date Code & Pin One Defined By Dot on Top of Package

PIN CONFIGURATION

GND I/O 4 I/O 3 GND

8

1

I/O 1 +V

7

2

REF

+V

6

3

REF

5

4

I/O 2

105096.R5 9/03 www.protekdevices.com

DEVICE CHARACTERISTICS

MAXIMUN RATINGS @ 25°C Unless Otherwise Specified

PSRDA3.3-4

thru

PSRDA15-4

PARAMETER

SYMBOL VALUE
Peak Pulse Power (tp = 8/20µs) - See Figure 1
Operating Temperature
Storage Temperature
Maximum Forward Voltage @ 100mA (See Note 1) Volts1.1V

Note 1: Measured between pins 8 or 5 to 1, 2, 3, 4, 6 and 7.

P

PP

T

J

T

STG

F

500 Watts

-55°C to 150°C

-55°C to 150°C

UNITS

°C
°C

ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified

PA RT

NUMBER

PSRDA3.3-4
PSRDA05-4
PSRDA12-4
PSRDA15-4

Note 1: Capacitance measured at VWM = VCC connected between I/O pins to pin 8 and 5 (Gnd). VR = VWM @ 1MHz. As shown in Figure 5, REF1 is
connected to ground, REF2 is connected to +VCC, and input applies to VCC = 5V, V

DEVICE

MARKING

PRA

PRB
PRD
PRE

RATED

STAND-OFF

VOLTAGE

V

WM

VOLTS

3.3

5.0

12.0

15.0

MINIMUM

BREAKDOWN

VOLTAGE

@ 1mA

V

(BR)

VOLTS

4.0

6.0

13.3

16.7

MAXIMUM

CLAMPING

VOLTAGE

(See Fig. 2)

@ IP = 1A

V

C

VOLTS

6.5

9.8

19.0

24.0

= mV, F = 1 MHz.

sign

MAXIMUM

CLAMPING

VOLTAGE

(See Fig. 2)

@8/20µs

VC @ I

PP

10.9V @ 43.0A

13.5V @ 42.0A

25.9V @ 21.0A

30.0V @ 17.0A

MAXIMUM

LEAKAGE

CURRENT

@V

WM

I

D

µA

125

20

1
1

MAXIMUM

CAPACITANCE

(See Note 1)

(See Figure 5)

@0V, 1 MHz

C

j(SD)

pF
15

15
15
15

10,000

1,000

100

- Peak Pulse Current - Watts

PP

P

10

0.01 1 10 100 1,000 10,000

PEAK PULSE POWER VS PULSE TIME

FIGURE 1

500W, 8/20µs Waveform

td - Pulse Duration - µs

FIGURE 2

120

PP

100

80

60

40

- Peak Pulse Current - % of I

20

PP

I

0

0 5 10 15 20 25 30

2 www.protekdevices.com05096.R5 9/03

PULSE WAVE FORM

t

f

Peak Value I

-t

e

td = t

t - Time - µs

PP

IPP/2

TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs

GRAPHS

G

PSRDA3.3-4

thru

PSRDA15-4

POWER DERATING CURVE

100

80

60

40

% Of Rated Power

20

Average Power

0

0 25 50 75 100 125 150

T

- Lead Temperature - °C

L

FIGURE 5

INPUT CAPACITANCE CIRCUIT

REF2

I/O

V

R

REF1

FIGURE 3

Peak Pulse Power

8/20µs

+V

CC

OVERSHOOT & CLAMPING VOLTAGE FOR PSRDA05-4

40

30

20

10

5 Volts per Division

0

ESD Test Pulse: 8 kilovolt, 1/30ns (waveshape)

FIGURE 6

TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR PSRDA05-4

12

8

4

- Clamping Voltage - Volts

C

V

0

FIGURE 4

0 5 10 15 20 25 30

I

- Peak Pulse Current - Amps

PP

FIGURE 7

INSERTION LOSS - PSRDA12-4

20 db

Ref 0 db

10 db per Division

-20 db

-50 db
100 MHz per Division

3 www.protekdevices.com05096.R5 9/03

20 db

Ref 0 db

10 db per Division

-20 db

-50 db

RETURN LOSS - PSRDA12-4

FIGURE 8

100 MHz per Division

PSRDA3.3-4

thru

PSRDA15-4

APPLICATION NOTE

The PSRDAxx-4 Series are low capacitance, unidirectional TVS arrays that are designed to protect I/O or high speed data lines from the damaging
effects of ESD or EFT. This product series has a surge capability of 500 Watts PPP per line for an 8/20µs waveshape and offers ESD protection >
40kV.

DIFFERENTIAL-MODE CONFIGURATION (Figure 1)

Ideal for use in USB applications, the PSRDAxx-4 Series provides up
to four (4) lines of protection in a differential-mode configuration as
depicted in Figure 1.

Circuit connectivity is as follows:

✔ Pins 1, 4, 6 and 7 are connected to the data lines.
✔ Pins 5 and 8 are connected to ground.
✔ Pins 2 and 3 are connected to the databus.

DIFFERENTIAL-MODE CONFIGURATION (Figure 2)

The PSRDAxx-4 Series also provides up to four (4) lines of protection
in a differential-mode configuration as depicted in Figure 2 for T1/E1
applications.

Circuit connectivity is as follows:

✔ Pins 1, 4, 6 and 7 are connected to the data lines.
✔ Pins 5 and 8 are connected to ground.
✔ Pins 2 and 3 are connected to the databus.

CIRCUIT BOARD LAYOUT RECOMMENDATIONS

Circuit board layout is critical for Electromagnetic Compat­ibility (EMC) protection. The following guidelines are
recommended:

✔ The protection device should be placed near the input

terminals or connectors, the device will divert the
transient current immediately before it can be coupled
into the nearby traces.

✔ The path length between the TVS device and the

protected line should be minimized.

✔ All conductive loops including power and ground loops

should be minimized.

Figure 1. Typical Differential-Mode USB Protection

USB CONTROLLER

Figure 2. Typical Differential-Mode T1/E1 Protection

RTIP

RRING

USB PORT

D+

V

BUS

4

5

4

2

3

6

3

1

8

7

GNDGND

2

1

D-

GND

USB PORT

D+

D-

GND

PTC

PLC01-6

PTC

V

BUS

V

BUS

✔ The transient current return path to ground should be

kept as short as possible to reduce parasitic induc­tance.

✔ Ground planes should be used whenever possible.

For multilayer PCBs, use ground vias.

T1/E1 TRANSCEIVER

TTIP

TRING

4 www.protekdevices.com05096.R5 9/03

GND

5

6

8

7

GND

PTC

PLC01-6

PTC

PACKAGE OUTLINE & DIMENSIONS

PSRDA3.3-4

thru

PSRDA15-4

G

-T-

0.010” (0.25 MM)

8 PL

PACKAGE OUTLINE

-A-

8

1

5

M

P

0.010” (0.25 MM)

4 PL

-B-

4

M

B

PACKAGE DIMENSIONS

MILLIMETERS

SO-8

INCHES

DIM MIN MAX MIN MAX

D

C

K

S

S

M

T

B

A

MOUNTING PAD

0.050” ± 0.005”

A
B

R X 45º

C
D

0º - 10º

F
G

J

F

J
K
P
R

NOTES

1. - T - = Seating Plane and Datum Surface.

0.030” ± 0.005”

2. Dimensions “A” and “B” are Datum.

3. Dimensions “A” and “B” do not include mold protrusion.

4. Maximum mold protrusion is 0.015” (0.380 mm) per side.

5. Dimensioning and tolerances per ANSI Y14.5M, 1982.

6. Dimensions are exclusive of mold flash and metal burrs.

4.80

3.80

1.35

0.35

0.40

1.27 BSC

0.18

0.10

5.80

0.25

5.00

4.00

1.75

0.49

1.250

1.27 BSC

0.25

0.25

6.20

0.50

0.189

0.150

0.054

0.014

0.016

0.05 BSC

0.007

0.004

0.229

0.010

0.196

0.157

0.068

0.019

0.049

0.05 BSC

0.009

0.008

0.244

0.019

0.160” ± 0.005”

0.045” ± 0.005”

COPYRIGHT © ProTek Devices 2003

SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical
characteristics described herein without notice (except JEDEC).

DESIGN CHANGES: ProTek reser ves the right to discontinue product lines without notice, and that
the final judgement concerning selection and specifications is the buyer’s and that in furnishing
engineering and technical assistance, ProTek assumes no responsibility with respect to the
selection or specifications of such products.

0.245” MIN

TAPE & REEL/BULK ORDERING NOMENCLATURE

1. Surface mount product is taped and reeled in accordance
with EIA-481.

2. Suffix-T7 = 7 Inch Reel - 1,000 pieces per 12mm tape,
i.e.,

PSRDA05-4-T7.

3. Suffix-T13 = 13 Inch Reel - 2,500 pieces per 12mm tape,
i.e.,

PSRDA05-4-T13.

4. No Suffix = Product Shipped in Tubes of 98 pcs per Tube.

Outline & Dimensions: Rev 1 - 11/01, 06009

ProTek Devices

2929 South Fair Lane, Tempe, AZ 85282
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
Web Site: www.protekdevices.com

5 www.protekdevices.com05096.R5 9/03