Model

SMT-012-020VT

SMT-024-020VT

Output

DC Voltage

12VDC

24VDC

Voltage Accuracy

±5%

±5%

Rated current

1.66Amp

0.83Amp

Rated power

20W

20W

Input

Voltage Range

90-135VAC / 170～250VAC

Frequency Range

47～63HZ

Power Factor （Typ.）

PF≧0.92/110V ; PF≧0.94/220V ; PF≧0.95/250V

Full Load Efficiency（Typ.）

>83%

>83%

AC Current（Typ.）

0.14A/110VAC  0.12 A/220VAC  0.01A/250VAC

Leakage current

<0.27mA/110VAC; ﹤0.25mA/220VAC

Protection

Short Circuit

Hiccup mode, recovers automatically after fault condition

is removed.

Over voltage

≦140VAC(90~135V) , ≦270VAC(170~265V)

Environment

Working TEMP.

-40～+60℃

Working Humidity

20～90%RH,non-condensing  

Storage TEM.,Humidity

-40～+80℃，10～95%RH  

TEMP.coefficient

±0.03%/℃（0～50℃） 

Vibration

10～500Hz，2G 10min./1 cycle，period for 60min.

each along X,Y,Z axes

Safety&EMC

Safety standards

EN-60950-1, EN-61347-1/-2/-13

Withstand voltage

I/P-O/P:3.75KVAC

Isolation resistance

I/P-O/P：100MΩ/500VDC/25℃/70%RH  

EMC EMISSION

Compliance toEN55015,EN61000-3-2 (≧50%load)  

EMC IMMUNITY

Compliance to EN55015,EN61000-4-2,3,4,5,6,8,11,A light industry 

level （surge4KV）

Others

Weight

About 0.16Kg/pcs

Size

140*45*28mm  

mmm（L*W*H）

packing

324*298*176mm

Notes

1. All parameters NOT specially mentioned are measured at 110V/230VAC input , rated load and

25℃of ambient temperature.

2. Ripple& noise are measured at 20MHz of bandwidth by using a 12”twisted

pair-wire terminated with a 0.1uf &47uf parallel capacitor.

3.  Tolerance:includes set us tolerance,line regulation and load regulation .