The EOS Power Economical Green Series was designed with the value focused customer in mind. The WLT Green Series offers market leading specifications in industry standard footprints at very competitive price levels.

  • 4.0 x 2.0 x 1.324 inches form factor
  • 150 W with air forced cooling
  • Class I option
  • 12 V @ 0.5 A fan voltage auxiliary output
  • High Efficiency > 86 %
  • Now IEC/EN/UL62368-1 CompliantNEW
  • Low conducted and radiated noise
  • Light weight
  • Cover Kit accessory available
  • Approved with metal enclosures/accessories

WLT150-CK Series

Input Specifications
Input Voltage 90-264 VAC/120-390 VDC, Universal                                                      
Input Frequency 47-63 Hz
Input Current 1.7 A max @ 120 VAC AND 0.85 A max @ 230 VAC
Inrush Current 35 A max @ 120 VAC AND 65 A max @ 230 VAC
Output Specifications
Output Voltage From 5V to 48V (Refer model number matrix table)
Output Power 150 W
Peak Power 170 W for 0.2 s
Hold-up Time >6 ms @ 120 VAC AND 10 ms @ 230
Line Regulation +/-0.5 %
Load Regulation +/-2.0 %
Minimum Load 0.0 A
Transient Response max excursion 10 %; 50 % to 100% load at 0.1A/uS slew rate, 50 % duty cycle, 50/60Hz, recovery time < 5 ms.
Ripple1 1.0 % max for all outputs.
Rise Time < 100 ms
Set Point Accurarcy +/-1 %
Output Voltage Adjustment +/-3 %
Over Current Protection 110 % typical above rating
Over Voltage Protection 110 to 150 %
Short Circuit Protection Short term, auto recovery
Cooling Convection: 80 W; 300 LFM: Up to 100 W (5 V model) ,
100 W; 300 LFM: Up to 150 W (Other models)
General Specifications
Efficiency 120 VAC: 84 % typical AND 230 VAC: 86 % typical                                                                                                                   
Power Factor 120 VAC : 0.99 AND 230 VAC : 0.95
Isolation Voltage Min. 4000 VDC between input to output
MTBF 2.4m Hours, Telcordia -SR332-issue 3
Switching Frequency PFC converter: Variable, 35-250 kHz; 90 kHz typical
Resonant converter: Variable, 35-250 kHz; 90 kHz typical
Leakage Current 120 VAC: < 150 μA AND 230 VAC: < 300 μA
Dimensions 4.0 x 2.0 x 1.324 inches
(101.6 x 50.8 x 33.63 mm)
Weight 150 gm
Environmental Specifications
Operating Temperature -20 to +70°C, refer derating curve, -20 to 0°C, start-up is guaranteed                                                                 
Storage Temperature -40 to +70°C
Relative Humidity 95 % Rh, non condensing
Altitude Operating: 10,000 ft.; Non-operating: 40,000 ft
Model Number Power Voltage Max. Load2 (Convection)
Max. Load2
(300 LFM)
LFWLT150-1000100 W5 V16.0 A20.0 A
LFWLT150-130080 W5 V16.0 A16.0 A
LFWLT150-1X01150 W12 V8.33 A12.5 A
LFWLT150-1X02150 W15 V6.6710.0 A
LFWLT150-1X03150 W24 V4.17 A6.25 A
LFWLT150-1X04150 W48 V2.08 A3.13 A
For Screw Terminal version replace "X" above with "0", example LFWLT150-1003, Class I option.
For Header version (JST Connector) replace "X" above with "3", example LFWLT150-1303, Class I option.
For Power supply unit with Base plate (metal accessory option) add "-B" suffix at the end of model number
For Power supply unit with L bracket (metal accessory option) add "-L" suffix at the end of model number
For Power supply unit with U channel (metal accessory option) add "-U" suffix at the end of model number
For Power supply unit with CK Cover kit (metal accessory option) add "-CK" suffix at the end of model number
LFWLT100-CK metal cover kit accessory available.
General Notes:
  • Fan output voltage tolerance is +/-20 %.
  • Peak current for fan output is 1 A.
  • Class I products have an Earthing tab and Class II version available. Add "-II" suffix at the end of the Model Number to Order. Enquire with EOS Sales Rep before Order.
  • Specifications are for nominal input voltage, 25°C and max. load unless otherwise stated.
  • Derate output power linearly to 80 % from 90 VAC to 80 VAC input.
  • When used in Cover Kit, de-rate output power to 70 % under all operating conditions.
  1. Ripple is 2 % up to 20 % load and < 1 % above 20 % load. Ripple is peak to peak with 20 MHz bandwidth and 10 μF (Electrolytic capacitor) in parallel with a 0.1 μF capacitor at rated line voltage and load ranges.
  2. Combined output power from V1 and VFAN should not exceed the total output power rating.
Derating Curve
MULP180 Convection load: 80W up to 50 °C
De-rate between 50 °C @ 3.125 % per °C

Forced air cooled load : 100W up to 50°C
De-rate above 50 °C @ 2.5 % per °C
MWLT150 Convection load: 100W up to 50 °C
De-rate between 50 °C @ 2.5 % per °C

Forced air cooled load : 150 W up to 50°C
De-rate above 50 °C @ 1.67 % per °C
Parameter Conditions/Description Criteria
Conducted Emissions EN55032-B, CISPR22-B, FCC PART15-B Pass
Radiated Emissions EN 55032 B Pass
Input Current Harmonics EN 61000-3-2 Class D
Voltage Fluctuation and Flicker EN 61000-3-3 Pass
ESD Immunity EN 61000-4-2 Level 3, Criterion A
Radiated Field Immunity EN 61000-4-3 Level 3, Criterion A
Electrical Fast Transient Immunity EN 61000-4-4 Level 3, Criterion A
Surge Immunity EN 61000-4-5 Level 3, Criterion A
Conducted Immunity EN 61000-4-6 Level 3, Criterion A
Magnetic Field Immunity EN 61000-4-8 Level 3, Criterion A
Voltage dips, interruptions EN 61000-4-11 Criterion A & B
CE Mark Complies with LVD Directive
Safety Standard(s) EN IEC 62368-1:2020;A11, IEC 62368-1:2018, UL 62368-1 & CSA C22.2 NO. 62368-1, 3rd Ed
Approval Agency Nemko, UL, IEC
Safety File Number(s) Class I UL: Certificate Number : E515384, Nemko: Certificate No: P20225090, CB Test Certificate No: NO111516
CB Class - I Certificate
Nemko Class - I Certificate
UL Class - I Certificate
Mechanical Specifications
AC Input Connector (J1)

Molex: 26-60-4030 or equivalent
Mating: 09-50-3031; Pins: 08-50-0106
Pin 1
Pin 2
DC Ouput Connector (J2) Option-1: Tyco: 1776112-4 or equivalent
Mating: 13 AWG wire
Option-2: JST: B4P-VH-B (LF) (SN) or B4P-VH (LF) (SN) or equivalent
Mating: VHR-4M; Pins: SVH-41T-P1.1
Pin 1,2
Pin 3,4
Fan Connector (J3) Tyco: 640456-2 or equivalent
Mating: 640440-2
Pin 1
Pin 2
VFAN (+12 V/0.5 A)
Spade Connector
(Class I product only)
Molex: 19705-4301 or equivalent
Mating: 190030001
Mechanical Drawing
    General Notes: In case the PCB is mounted in a metal enclosure, using metal hardware ensure the following
  1. Stand off, used to mount PCB has OD of 5.4 mm max.
  2. Screws, used to fix PCB on stand off, have head dia of 6.0 mm max.
  3. Washer, if used, to have dia of 6.5 mm max.
Certificate Standard Downloads
CB Class - I Certificate IEC 62368-1:2018
Nemko Class - I Certificate EN 62368-1:2020;A11
UL Class - I Certificate UL 62368-1 & CSA C22.2 NO. 62368-1, 3rd Ed

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