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High Density - Board Mounted Power Division
45
50
55
60
65
70
75
80
85
90
10 20 30 40 50 60 70 80 90 10
LOAD %
EFFICIENCY %
EFF. EWS1212
EFF. EWS1215
Voltage Range
5 VDC Nominal 4.5 - 9 VDC
12 VDC Nominal 9 - 18 VDC
Reflected Ripple 20% I
in
Max.
Reverse Input Current 100% I
in
Max.
TECHNICAL SPECIFICATIONS
EWS DC/DC converters offer excellent
regulation and isolation in an industry standard
package. Available in 5V or 12V input versions,
the EWS is ideal for industrial, datacom, or
telecom applications. The EWS features short
circuit protection, six-sided shielding, and 500
VDC isolation. Please see the EWD series for
dual output applications.
• Industry Standard
Package
• Industry Standard Pinout
• 85°C Case Operation
• Short Circuit Protection
• 5V and 12V Inputs
• Input Pi Filter and
6-Sided Shielding
• Regulated Outputs
• 500V Isolation
DESCRIPTION
FEATURES
EWS SERIES
5 WATT
Setpoint Accuracy ±5%
Line Regulation VinMin. - VinMax., I
out
Rated ±1.5% V
out
Load Regulation I
out
Min. - I
out
Max., VinNom. ±2.5% V
out
Minimum Output Current 10%
Dynamic Regulation, Loadstep 25% I
out
Pk Deviation 1% V
out
Settling Time 500 µs
Temperature Coefficient 0.02%/°C
Ripple And Noise, 20 MHz BW 150 mV
Short Circuit Protection
1
Continuous
Current Limit 130%
Switching Frequency 200 kHz
Isolation
Input - Output 500 VDC
Isolation Resistance - Input to Output 109 Ohms
Standard Case Operating Range -25 to +85°C
Storage range -40 to +125°C
Humidity Max., Non-Condensing 95%
Vibration, 3 Axes, 5 Min Each 5 g, 10 - 55 Hz
Safety UL, cUL, TUV
Weight (approx.) 1.4 oz.
1
Converter will auto-restart once fault has been removed.
Specifications typically at 25°C, normal line, and full load, unless
otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully
compatible with commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please
consult factory for specific model information.
Notes
Output
Input
General
Efficiency vs. Load (12V Input)
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MECHANICAL DRAWING
Thermal Impedance
Natural Convection 15.4 °C/W
100 LFM 12.2 °C/W
200 LFM 9.3 °C/W
300 LFM 7.4 °C/W
400 LFM 6.4 °C/W
Tolerances
Note:
Thermal impedance data is
dependent on many environmental
factors. The exact thermal
performance should be validated
for specific application.
Pin Function
1 +V
in
2 -V
in
3 +V
out
4 - V
out
EWS SERIES
5 WATT
Inches:
.XX ± 0.040
.XXX ± 0.010
Pin:
± 0.002 ± 0.05
Case:
+0.04, -0.00 +1.0, -0.0
(Dimensions as listed unless otherwise
specified.)
(Millimeters)
.X ± 1.0
.XX ± 0.25
MODELS - (See the last page of Section for options.)
1.40"(35.6mm)
BOTTOM VIEW
0.800"(20.3mm)
0
(4.6mm)
0.18" MIN.
(1.0mm)
DIA 0.040"
(10.2mm)
0.40"
(50.8mm)
2.00"
(25.4mm)
1.00"
4
2531
(-2.5mm)
-0.10"
0
(20.3mm)
0.800"
(7.6mm)
0.300"
(10.2mm)
0.400"
(12.7mm)
0.500"
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High Density - Board Mounted Power Division
Powering Communications and Technology
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OPTIONS
When ordering equipment options, use the following suffix information. Select the option(s) that you prefer and
add them to the model number. Example ordering options are located below the options table.
Example Options:
HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent compatible trim, and 0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support systems, equipment used
in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.
OPTIONS SUFFIX APPLICABLE SERIES REMARKS
Negative Logic N HAS, HBD, HBS, HES, HLS, LES, TTL "Low" Turns Module ON
QBS, QES, QLS, TES, TQD TTL "High" Turns Module OFF
Lucent Compatible Trim T
HAS, HBD, HBS, HES, HLS, QBS, QES,
QLS
Terminal Strip TS XWS, XWD, XWT
Trim 1 IAS, LES
Enable 2 IAD, IAS, LES, SMS
Trim and Enable 3 IAS, LES
Current Share 4 SMS
Headerless Y Encapsulated EWS, IWS, OWS
PIN LENGTH AND HEATSINK
OPTIONS
Standard Pin Length is 0.180"
(4.6mm)
0.110" (2.8mm) Pin Length 8 All Units (Except SMS)
0.150" (3.8mm) Pin Length 9 All Units (Except SMS)
0.24" (6.1mm) Horizontal Heatsink
1H
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM TLD, and TKD Packages)
Includes Thermal Pad
0.24" (6.1mm) Vertical Heatsink 1V
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM TLD, and TKD Packages)
Includes Thermal Pad
0.45" (11.4mm) Horizontal Heatsink
2H
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM TLD, and TKD Packages)
Includes Thermal Pad
0.45" (11.4mm) Vertical Heatsink 2V
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM TLD, and TKD Packages)
Includes Thermal Pad
0.95" (24.1mm) Horizontal Heatsink
3H
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM TLD, and TKD Packages)
Includes Thermal Pad
0.95" (24.1mm) Vertical Heatsink 3V
All Units (Except DIP, HLS, HLD, QLS,
SIP, SM TLD, and TKD Packages)
Includes Thermal Pad
High Density - Board Mounted Power Division
Powering Communications and Technology
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