Model

SMT-012-300VDH (1.0 version)

SMT-012-300VDHV2 (2.0 version)

 SMT-012-300VDHWV2 (3.0 version)

SMT-024-300VDH (1.0 version)

SMT-024-300VDHV2 (2.0 version)

SMT-024-300VDHWV2 (3.0 version)

Output

DC Voltage

12V

24V

Rated Current

±0.5V

Rated Power

±0.5%

Voltage Tolerance

25A

12.5A

Voltage Regulation

300W

Load Regulation

±2 %

Input

Voltage Range

100-277VAC

Frequency Range

47-63Hz

Power Factor(Typ.)@ full load

0.98@120VAC  0.95@277VAC

THD(Typ.)@ full load

<20%

Efficiency(Typ)@ full load

83% @120Vac      86%@277Vac

79%

AC Current(Max.)

1.3A@100VAC

Inrush Current (Typ.)

20A, 50%, 1.6ms

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% constant current limiting, auto-recovery

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

1.9Kg  

Size

1.0 version: 278*108*46mm (L*W*H) / 2.0 version: 278*110*45mm

3.0 version: 278*130*45mm  

packaging

10PCS/CTN

385*335*200mm     20PCS/CTN

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.