3 Year Warranty

Approvals: 

Specification

PRODUCT NUMBER 

LTEF100G-S050200 

LTEF100G -S120085 

LTEF100G -S240042 

LTEF100G -S480022 

OUTPUT 

DC Output 

5V 

12V 

24V 

48V 

Rated Current 

20A 

8.5A 

4.2A 

2.2A 

Current Range     Note 1 

0~20A 

0~8.5A 

0~4.2A 

0~2.2A 

Ripple and Noise   Note 2 

0~70°C

 ≤150mV 

 ≤150mV 

 ≤150mV 

 ≤150mV 

-20~0°C

 ≤150mV 

 ≤150mV 

 ≤150mV 

 ≤200mV 

Voltage ADJ.  Range 

3.3V€~5.5V 

10~15V

21~27V 

43.2~52.8V 

Voltage Accuracy  

±2.0% 

±2.0% 

±1.0% 

±1.0% 

Line Regulation 

±0.5% 

±0.5% 

±0.5% 

±0.5% 

Load Regulation 

±2.0% 

±2.0% 

±1.0% 

±1.0% 

Set-up Time 

≤4S @115Vac, ≤2S @230Vac 

Hold up Time  

≥12mS (230Vac input, Full load) 

Temperature Coefficient

±0.03%/°C

Overshoot and Undershoot 

<5.0% 

INPUT 

Voltage Range    

90Vac~264Vac 

Frequency Range 

47Hz~63Hz 

Power factor (typical) 

PF＞0.98@115Vac, PF＞0.93@230Vac 

Efficiency (Typical) 230Vac input 

 ≥84%

≥87% 

≥88% 

≥88% 

AC Current (max.) 

＜1.5 A

Inrush Current (Typical) 

＜30@115Vac, <50A@230Vac  Cold start 

Leakage Current 

Input—output: ≤0.25mA; Input—PG: ≤3.5mA

PROTECTION 

Over Load 

110%~150% of rated output current, hiccup mode, auto recovery 

Over Power 

110%~150% of rated output current, hiccup mode, auto recovery 

Short Circuit 

Long-term mode, auto recovery 

ENVIRONMENT 

Operating amb. Temp. & Hum. 

-20°C~60°C; 20%~90% RH No condensing (refer to the derating curve) 

Storage Temp. & Hum. 

-30°C~85°C; 10%~95% RH No condensing 

SAFETY & EMC  

Note 3 

Safety Standards 

UL60950-1 2nd Ed; IEC 60950-1:2005 (2nd Ed); EN60950-1:2006 

Withstand Voltage 

 Primary-Secondary:3.0KVac; ≤Ü 10mA. Primary-PG:1.5KVac; ≤Ü 10mA. Secondary-PG:0.5KVDC; ≤Ü 10m

Isolation Resistance 

100M ohms  

EMS Emission 

Compliance to EN55022 Class B 

Harmonic Current 

Compliance to EN61000-3-2, Class A 

EMC Immunity 

Compliance to EN61000-4-2,3,4,5,6,8,11; heavy industry level 

OTHERS 

MTBF (MIL-HDBK-217F) 

More than 200,000Hrs (25°C, Full load) 

Dimension (L*W*H) 

129x98.3x37.6 mm 

Packing 

30PCS/CTN, 14.6KGS, 0.04CBM 

Cooling method 

Cooling by free air convection 

1. All parameters NOT specially mentioned are measured at rated input, rated load and 25°C of ambient temperature. 
2. Measured at 20MHz of bandwidth 

NOTE 

 3. The SPS is considered a component which will be installed into final equipment. The equipment must be re-confirmed that it still meets EMC directives. 

Block Diagram

Derating Curve

Mechanical Specification