12v dc led driver class 2 20w led power supply for led loads
A 12v dc 20w led power supply gets class2 approval. High stability and low ripple, it can increase light efficiency and decrease light attenuation. Especially it is a triac dimming power supply with SAA certification.
| Features | |
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·Output constant current ·Input range :180-265VAC ·Built-in PFC function / Efficiency > 83% ·Protections:Short circuit/over Voltage ·Fully isolated plastic case IP20 / Easy installation ·Cooling by free air convection ·Work with leading edge and trailing edge Triac dimmer ·Strong compatibility, flicker-free dimming ·Suitable for LED lighting and moving sign applications ·Compliance to worldwide safety regulations for lighting ·CE,SAA, RoHS approval ·5 years warranty |
Derating Curve
Load carried in accordance with the load derating curve, according to the ambient temperature derating, in order to extend the running life.
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 .
Label
