LTEA25 SERIES


25W Enclosed Power Supply for IT Equipment


  •  No Load power consumption<0.5W 
  •  Universal AC input range 
  •  Miniature size,high power density,high efficiency,long life and high reliability   Withstand 300VA surge input for 5 sec. 
  •  Output protections: OLP/OVP/SCP 
  •  Wide operating ambient temp (-25°C~70°C), 100% @50°C, 60%@70°C 
  •  All using 105°C long life electrolytic capacitors. 
  •  100% full load burn-in test 
  •  PCB soldering side with conformal coating 
  •  Suitable for critical applications 

Specifications

 

 

3 Year Warranty

 

Approvals: 

 

Electrical Specification

PRODUCT NUMBER

LTEA25-S033050 

LTEA25-S050050

LTEA25-S120021

LTEA25-S150016

LTEA25-S240011

OUTPUT 

DC Output 

3.3V 

5V 

12V 

15V 

24V 

Rated Current 

5A 

5A 

2.1A 

1.6 A 

1.1A 

Current Range      

0~5A 

0~5A 

0~2.1A 

0~1.6A 

0~1.1A 

Ripple and Noise   Note 2 (-25~70℃) 

<50mV 

<50mV 

<120mV 

<120mV 

<120mV 

Voltage ADJ.  Range 

-5%~+10% of rated output voltage 

Voltage Accuracy  

±2.0% 

±2.0% 

±1.0% 

±1.0% 

±1.0% 

Line Regulation 

±0.5% 

±0.5% 

±0.5% 

±0.5% 

±0.5% 

Load Regulation 

±2.0% 

±2.0% 

±1.0% 

±1.0% 

±1.0% 

Set-up Time 

2.0S (115Vac input, Full load); 1.0S (230Vac input, Full load) 

Hold up Time  

14mS(115Vac input, Full load); 30mS(230Vac input, Full load) 

Temperature Coefficient 

±0.03%/℃ 

Overshoot and Undershoot 

<5.0% 

INPUT 

Voltage Range    

90Vac~264Vac127~370Vdc 

Frequency Range 

47Hz~63Hz 

Efficiency 

( Typical) 

115Vac input 

70% 

76% 

80% 

82% 

84% 

230Vac input 

71% 

78% 

82% 

83% 

85% 

AC Current (max.) 

0.7A 

0.7A 

0.7A 

0.7A 

0.7A 

Inrush Current (Typical) 

<20A@115Vac    <40A@230Vac      Cold start 

Leakage Current 

Input—output:<0.25mA     Input—PG:<0.75mA 

 

PROTECTION 

Over Load 

105%~150% of rated output current, hiccup mode,auto recovery 

Over Voltage 

105%~150% of rated output voltage, Constant Voltage  

Short Circuit 

Long-term mode, auto recovery  

ENVIRONMENT 

Operating amb. Temp. & Hum. 

-25℃~70℃;  20%~90%RH  No condensing (refer to the derating curve) 

Storage Temp. & Hum. 

-40℃~85℃;  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; ≤10mA .Primary-PG:1.5KVac; ≤10mA. Secondary-PG:0.5KVDC;≤10mA. 

Isolation Resistance 

≥100M ohms  

EMC Emission 

Compliance to EN55022,EN55024 ClassB 

Harmonic Current 

Compliance to EN61000-3-2,-3 

EMC Immunity 

Compliance to EN61000-4-2,3,4,5,6,8,11;EN55024,EN61000-6-2 heavy industry level 

OTHERS 

MTBF (MIL-HDBK-217F) 

More than 200,000Hrs (25℃, Full load) 

Dimension  (L*W*H) 

79×51×28.8mm 

Packing 

48PCS/CTN, 10.4KGS, 0.03CBM 

Cooling method 

Cooling by free air convection 

 

  1. All parameters NOT specially mentioned are measured at 230Vac input, rated load and 25℃ of ambient temperature. 
  2. Measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1 uF & 10uF parallel capacitor. 

NOTE 

  1. 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. 
  2. MEPOS offer accessories for Din-35 rail bar. Please contact sales staff for details. 

 

Block Diagram

Derating Curve

 

Mechanical Specifications

 

LTEA25 - MEPOS ELECTRONICS
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