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48V to 24V 3W 125mA DC to DC Isolation Voltage 1500VDC Power Module Converter WRB4824S-3WR3

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WRB48XXS-3W Series Mode list

Product Feature

1. Wide input voltage range 2:1, isolated regulated output 3W 

2. Isolation voltage 1500VDC

3. Transfer efficiency up to 83%

4. Output short-circuit protection: continuous short circuit protection, automatic recovery 

5. The voltage of the input power supply is relatively stable.(Voltage variation range±10%Vin) 

6. Operating temperature range :-40°C~+85°C 

7. Small SIP package 

8. International standard pin,direct installation of PCB board. 

Enviroment Condition

Project nameQualificationUnitNotes
Working enviroment temperature-40—+85
Storage temperture-40—+125 ℃
Relative humidity5—95%
Heat dissipation modenatural cooling

Atmospheric pressure80—106 KpaKpa
Ripple & Noise50/100(max)

Input Characteristics

ItemWorking conditionsMin.Typ.Max.Unit
Input voltage range
5VDC Input Series4.559VDC
12VDC Input Series91218
24VDC Input Series182436
48VDC Input Series364872
Input current (full load/no load)5VDC Input Series--833/40857/60mA
12VDC Input Series--20/15328/30
24VDC Input Series--160/6164/10
48VDC Input Series--80/482/6
Reflection ripple current5VDC Input Series--30--mA
12VDC Input Series
24VDC Input Series
48VDC Input Series
Impulse voltage(1sec.max.)5VDC Input Series-0.7--12VDC
12VDC Input Series-0.7--25
24VDC Input Series-0.7--50
48VDC Input Series-0.7--100
Starting voltage5VDC nominal input series, nominal input voltage--4.5
12VDC nominal input series, nominal input voltage--9
24VDC nominal input series, nominal input voltage--18
48VDC nominal input series, nominal input voltage--36
Input filter type
Capacitance filter type
Hot plugged

Output Characteristics

Project nameWorking and testing conditionMin.Typ.Max.Unit
Linear adjustment rateFull load, input voltage from low voltage to high voltage--±3.0±5.0%
No-load output voltage accuracyInput voltage range--±1.5±5.0%
Output Voltage Accuracy5%-100% load, input voltage range3.3V/5V Input--±3.0±5.0%
Load adjustment rate5%~10% load3.3VDC Output--±0.4±75%
Transient recovery time25% load step change
Transient Response Bias

Ripple & NoisePure resistive load, 20HMz bandwidth, peak-to-peak--50100mVp-p
Temperature Drift CoefficientFull load
Output short circuit protectionContinuous short circuit protection, automatic recovery

Notes: Ripple and Noise Test Methods Twisted Pair Test Method


1、The above is only a list of typical products. If you need products beyond the list, please contact our sales. 2、The maximum capacitive load indicates the maximum capacitive load that + VO or - vo can be connected to,If the value is exceeded, the product will not start normally..

Typical Application Circuits


EMC parameter recommendation

Component No.FunctionRecommended value
FMSESlow blowing fuse, selected according to the actual input current of the customer
CY1 safety capacitor1nF/2KV
D1 diodeRB160M-60V/1A
R resistanceR=((Vc-Vd-1.0)/Ic)-300Ω

Notes:More details please feel free to contact hi-link team.

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