Basic Info.
Model NO.
SD-50B-12
Voltage Regulating Mode
Frequency Modulation Type
Power Supplying System
Terminal Power Distribution Equipment
Energy Transmission
Two-way Transmission
Modulation System
PFAW
Certification
CE, RoHS
Brand
Weho
Hold up Time
30ms/230VAC 12ms/115VAC at Full Load
Voltage Range
85 ~ 264VAC 120 ~ 373VDC
Frequency Range
47~63Hz
Efficiency
89%
Leakage Current
<0.75mA / 240VAC
Transport Package
Carton or Plywood Case
Specification
99mm*82mm*30mm
Trademark
Weho
Origin
Zhejiang
Production Capacity
50000/Year
Product Description
SD-50B-12 constant voltage dc to dc converter Switching Power Supply 50W 12v 4.2A Single output Smps
Features:
1.Full range AC 85-264V Input
2. Protections: Short circuit / Overload / Over voltage / Over temperature
3. 100% full load burn-in test
4. Low cost, high reliability
5. 24 months warranty
| Model | SD-50B-05 | SD-50B-12 | SD-50B-24 |
| DC Voltage | 5V | 12V | 24V |
| Rated Current | 10A | 4.2A | 2.1A |
| Current Range | 0~10A | 0~4.2A | 0~2.1A |
| Rated Power | 50W | 50.4W | 50.4W |
| Ripple and Noise | 100mvp-p | 120mvp-p | 150mvp-p |
| Voltage Tolerance | ±2.0% | ±1.0% | ±1.0% |
| Line Regulation | ±0.5% | ±0.3% | ±0.2% |
| Load Regulation | ±0.5% | ±0.3% | ±0.2% |
| Setup, Rise,Hold up time | 2.5s, 25ms,--- 12VDC/24VDC/48VDC at full load | ||
| Voltage Range | A:9.2 ~ 18VDC B:19 ~ 36VDC C:36 ~ 72VDC | ||
| Efficiency | 73% | 75% | 80% |
| DC Current | 7A/12V | 3A/24V | 1.5A/48V |
| Over Load | 105 ~160% rated output power | ||
| Protection type : Hiccup mode, recovers automatically after fault condition is removed | |||
| Over voltage | 5.75 ~ 6.75V/10% load | 16.8 ~ 20V/10% load | 31.5 ~ 37.5V/10% load |
| Protection type : Shut off o/p voltage, clamping by zener diode | |||
| Working Temp | -10 ~ +60 (Refer to "Derating Curve") | ||
| Working Humidity | 20 ~ 90% RH non-condensing | ||
| Storage temp,humidity | -20 ~ +85 , 10 ~ 95% RH | ||
| Temp. Coefficient | ±0.03%/ºC (0 ~ 50ºC) | ||
| Withstand Voltage | I/P-O/P:2KVAC I/P-FG:1KVAC O/P-FG:0.5KVAC | ||
| lsolation Resistance | I/P-O/P,I/P-FG,O/P-FG:100M Ohms / 500VDC / 25 / 70% RH | ||
| Demension | 159*97*38mm (L*W*H) | ||
| Weight/Packing | 0.48Kg; 24pcs/12.7Kg | ||
