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B2405S-2WR3/B2403S/B2412S/B2415S/B2424S-2WR3 DC to DC 24V to 5V 2W Isolation Voltage 1500VDC Power Module Converter

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B24XX-2W Series Mode list

Product Feature

1. characteristic:Constant voltage input, isolated non stabilized voltage single output,2W 

2. Isolation voltage 1500VDC

3. Low no-load power consumption 0.025W(Typ.)

4. Transfer efficiency up to 90%

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

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

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

8. Small SIP package 

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

10. High reliability and long life design,continuous working time MTBF≥3.5 million hours (3500000Hrs)

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 & Noise30/80(max)Mvp-p

Input Characteristics

ItemWorking conditionsMin.Typ.Max.Unit
Input current (full load/no load)5VDC Input Series--454/5--/10m'A
9VDC Input Series--250/5--/10
12VDC Input Series--186/2--/5
15VDC Input Series--148/2--/4
24VDC Input Series--92/1--/2
Reflection ripple current
Impulse voltage3.3VDC Input Series-0.7--5VDC
5VDC Input Series-0.7--9
9VDC Input Series-0.7--15
12VDC Input Series-0.7--18
15VDC Input Series-0.7--21
24VDC Input Series-0.7--30
Input filter type
Capacitance filter type
Hot plugged

Output Characteristics

Project nameWorking and testing conditionMin.Typ.Max.Unit
Output loadload percentage10--100%
Output Voltage AccuracySee Error Envelope Curve----±15.0%
Linear adjustment rateInput voltage variation ±1%3.3V Input----±1.5%
Load adjustment rate10%~100% load3.3VDC Output--18--%
5VDC Output--12--%
9VDC Output--8--%
12VDC Output--7--%
15VDC Output--6--%
24VDC Output--5--%
Ripple & NoisePure resistive load, 20HMz bandwidth, peak-to-peak--3080mVp-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
 Cin CapacitanceFilter capacitor4.7μA/50V
Cout CapacitanceFilter capacitorRefer to usual application
Lin inductanceFilter inductanceInductance: 4.7uH
Lout inductanceCin CapacitanceInductance: 4.7uH

Notes:Output Load Requirements 

In order to ensure that the module can work efficiently and reliably, the minimum output load should not be less than 10% of the rated load.If the power you need is really small, please connect a resistor in parallel between the positive and negative poles of the output terminal (the sum of the actual power used by the resistor is greater than or equal to 10% of the rated power and the rated power of the selected resistor must be greater than 5 times of the actual power used, otherwise the temperature of the resistor will be higher)

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