model

SMT-012-300VTDHV2 (1.0 version)

SMT-012-300VTDHWV2 (2.0 version)

SMT-024-300VTDHV2 (1.0 version)

SMT-024-300VTDHWV2 (2.0 version)

Output

DC Voltage

12V

24V

Rated Current

25A

12.5A

Rated Power

300W

300W

Voltage Tolerance

±0.5V

Voltage Regulation

±0.5%

Load Regulation

±2%

±1%

±1%

Input

Voltage Range

110-277VAC

Frequency Range

47-63Hz

Power Factor@ full load

0.99@120VAC  0.97@277VAC

0.99@120VAC  0.95@277VAC

THD(Typ.)@ full load

<20%

Efficiency @ full load

86% @120Vac      88%@277Vac

79%

88% @120Vac      92%@277Vac

AC Current(Max.)

3.4A@100Vac

Inrush Current (Typ.)

20A, 50%, 1.9ms @120Vac     35A, 50%, 1.9m,s @277Vac

Leakage current

<0.50mA

protection

Short Circuit

shut down o/p voltage, re-power on to recover after fault condition is removed

Over Loading

≤120% Hiccup mode,recovers automatically after fault condition is removed

Over temperature

100℃±10℃ shut down o/p voltage, automatically recover after cooling.

Environment

Working TEMP.

-40~+60℃ (see below derating curve)

Working Humidity

20~90%RH, non-condensing

Storage TEMP. Humidity

-40~+80℃,10~95%RH

TEMP .coefficient

±0.03%/℃(0~50℃)

Vibration

10~500Hz, 5G 10min./1 cycle,period for 60min. each along X,Y,Z axes

Safety&EMC

Safety standards

UL8750+UL1310

Withstand voltage

I/P-O/P:1.88KVAC  

Isolation resistance

I/P-O/P:100MΩ/500VDC/25℃/70%RH

EMC EMISSION

FCC Part 15 B

Others

Weight

About 2.0Kg

Size

1.0 version: 278*110*45mm / 2.0 version: 278*110*45mm

packing

10PCS/CTN

 (L*W*H)

Notes

1. All parameters if NOT specially mentioned are measured at 120VAC input , rated load and 25℃of ambient temperature.

2. To extend the driver's using life ,please reduce the loading at lower input voltage.