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OET SERIES - TRIPLE OUTPUT, 25 WATT
DESCRIPTION
FEATURES
OET triple output DC/DC converters provide 25
• Triple Output 2” x 2” • Input Undervoltage
Watts of output power in an industry standard
package. The OET series features excellent efficiency
and industry-leading power density. The OET features
open-frame packaging to provide maximum useable
power with minimal thermal constraints. These units
Open-Frame
Construction
1.5 Million Hours
Short Circuit and
MTBF
Lockout
24V or 48V Input
Versions
1500V Isolation
are fully compatible with production board washing
Overvoltage Protection • 100°C Baseplate
processes.
Operation
TECHNICAL SPECIFICATIONS
Voltage Range
24 VDC Nominal
48 VDC Nominal
Turn On Voltage 24V/48V Models
Turn On Hysteresis
Reflected Ripple Input Current
Input Reverse Voltage Protection
Input
18 - 36 VDC
34 - 75 VDC
<17V / <34V
1V Nominal
50 mA pk-pk
Shunt Diode
Output
Setpoint Accuracy
±1%
Line Regulation Vin Min. - Vin Max., Iout Rated
0.2% Vout
Load Regulation Iout Min. - Iout Max., Vin Nom.
0.5% Vout
Secondary Output Regulation, All Line/Load Conditions
10% Vout
Minimum Output Current
10 % Iout rated
Dynamic Regulation, Loadstep
25% Iout
Pk Deviation
Settling Time
4% Vout
500 µs
Short Circuit And Overcurrent Protection
Shutdown and Self-Recovering
Power LimitThreshold Range
110 - 130%
Short Circuit
OVP Trip Range
OVP Type
200% Iout Nom.
115 - 140% Vout Nom.
Self-Recovering
General
Switching Frequency
Turn-On Time
Remote Shutdown
Isolation
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Thermal Shutdown Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF(Bellcore TR-NWT-000332)
Safety
Weight (approx.)
500 kHz
10ms
Positive Logic
1500 VDC
1050 VDC
1050 VDC
0.03%/°C
-40 to +100°C
-40 to +125°C
105 to 115°C
95%
5 g, 10 - 55 Hz
1.5 x 106 hrs
UL, CUL, TUV
1.3 oz
1
Efficiency vs. Load (48V Input)
90
85
80
75
EFF. OETZGHH-A
70 EFF. OETZGJJ-A
65
60
10 20 30 40 50 60 70 80 90 10
LOAD %
Notes
MTBF predictions may vary slightly from model to model.
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.
Units are water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.

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OET SERIES - TRIPLE OUTPUT, 25 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
Vin Range
(Volts)
Iin Max.*
(Amps)
Vout
(Volts)
Iout Rated
(Amps)
24 18 - 36 1.4 3.3, –12
24 18 - 36 1.4 3.3, –15
24 18 - 36 1.8 5, –12
24 18 - 36 1.8 5, –15
48 34 - 75 0.7 3.3, –12
48 34 - 75 0.7 3.3, –15
48 34 - 75 0.9 5, –12
48 34 - 75 0.9 5, –15
Denotes advanced product release. Consult factory for product availability.
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.
MECHANICAL DRAWING
3.5, –0.35
3.5, –0.28
3.5, –0.31
3.5, –0.25
3.5, –0.35
3.5, –0.28
3.5, –0.31
3.5, –0.25
Ripple & Noise
Pk-Pk (mV)
50/120/120
50/150/150
50/120/120
50/150/150
50/120/120
50/150/150
50/120/120
50/150/150
Efficiency
Typ. **
85%
85%
86%
86%
85%
85%
85%
85%
Model
OET020YEHH-A
OET020YEJJ-A
OET025YGHH-A
OET025YGJJ-A
OET020ZEHH-A
OET020ZEJJ-A
OET025ZGHH-A
OET025ZGJJ-A
2.00"
(50.8mm)
0.600"(15.2mm)
0.400"(10.2mm)
0.200"(5.1mm)
0
1
2
3
4
-0.50"(-12.7mm)
-0.10" 0
(-2.5mm)
BOTTOM VIEW
5 1.100"(27.9mm)
6 0.700"(17.8mm)
2.00"
(50.8mm)
7 0.300"(7.6mm)
8 -0.100"(-2.5mm)
1.800"
(45.7mm)
0.18"
(4.6mm)
DIA 0.040"
(1.02mm)
0.375"
(9.5mm)
Thermal Impedance
Natural Convection
100 LFM
200 LFM
300 LFM
400 LFM
11.0 °C/W
7.5 °C/W
5.0 °C/W
3.7 °C/W
3.1 °C/W
Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.
Pin Function
1 +Vin
2 -Vin
3 case
4 enable
5 +Vout (aux)
6 +Vout (main)
7 common
8 -Vout (aux)
2
Tolerances
Inches:
.XX ± 0.020
.XXX ± 0.010
(Millimeters)
.X ± 0.5
.XX ± 0.25
Pin:
± 0.002
± 0.05
(Dimensions as listed unless otherwise
specified.)

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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.
OPTION
Negative Logic
Lucent Compatible Trim
Terminal Strip
Trim
Enable
Trim and Enable
Current Share
Headerless
SUFFIX
APPLICABLE SERIES
N HAS, HBD, HBS, HES, LES, QBS,
QES, TES, TQD
T HAS, HBD, HBS, HES, QBS, QES
TS XWS, XWD, XWT
1 IAS, LES
2 IAD, IAS, LES, SMS
3 IAS, LES
4 SMS
Y Encapsulated EWS, IWS, OWS
REMARKS
TTL “Low” Turns Module ON
TTL “High” Turns Module OFF
PIN LENGTH AND HEATSINK
OPTIONS
0.110” (2.8mm) Pin Length
0.150” (3.8mm) Pin Length
0.24” (6.1mm) Horizontal Heatsink
0.24” (6.1mm) Vertical Heatsink
0.45” (11.4mm) Horizontal
Heatsink
0.45” (11.4mm) Vertical Heatsink
0.95” (24.1mm) Horizontal
Heatsink
0.95” (24.1mm) Vertical Heatsink
Standard Pin Length is 0.180”
(4.6mm)
8 All Units (Except SMS)
9 All Units (Except SMS)
1H All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
1V All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
2H All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
2V All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
3H All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
3V All Units (Except DIP, SIP, and SM Includes Thermal Pad
Packages)
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.
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