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24V to 5V 1W 200mA DC to DC 88% transfer input power supply module B2405S-1WR3

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B24XX 产品-

Product Feature

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

2. transfer efficiency 88%(Typ) 

3. Isolation is required between input and output(isolation voltage≤1500VDC) 

4. output short-circuit protection 

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. The stability of output voltage is not required. 

8. Small SIP package 

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

10. Adopts high quality environmental protection, waterproof and heat conducting adhesive for filling and sealing, moisture-proof and vibration proof, meeting the waterproof and dustproof IP65 standard 

11. 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—+80 ℃
Relative humidity5—95%
Heat dissipation modenatural cooling

Atmospheric pressure80—106 KpaKpa
VibrateVibration coefficient 10~500Hz,2G10min./1cycle, 60min.each along X,Y,Z axes
Meet the requirements of secondary road transportation

Input Characteristics

ItemsWorking conditionsUnitNotes
Related input voltage24Vdc
Input voltage range21.6-24.6Vdc
Maximum input current≤0.2A
Reflection ripple current15mA

DC12V rated input

voltage series

Impulse voltage≤30Vdc
Starting voltage21.6Vdc
Input under voltage protection---Vdc
Start delay time---VdcReted input voltage and constant resistance load
Input filter type
Capacitive filtering
Hot plug

Notes: test at room temperature

Output Characteristics(5V/200mA)

ItemsTechnical parametersUnitNotes
No-load rated output voltageVdcVdc5V±15%Vdc
Short time maximum output current≥220mA
Rated output current200mA
Voltage regulation±1.5%
Load regulation±12%
Conversion efficiencyVin=24Vdc, Output full load 80%

Output ripple and noise(m Vp-p)≤100  Pure resistive load, 20MHz bandwith, peak to peak valuemV
Output over-voltage protectionOutput 110-160% of the maximum voltageVdc
Insulation voltageInput-output, test time 1 minute, leakage current less than 1mA/1500V

Insulation resistanceInput-output, insulation voltage 500VDC/1000MΩ
Isolated capacitorInput-output,100KHz/0.1V 20pF


1. Due to limited space, the above is only a list of typical products. If you need products outside the list, please contact our sales department. 

2. The maximum capacitive load indicates the maximum capacitive load that + Vo or -Vo can connect to. If it exceeds this value, the product will not start normally.

Typical Application Circuits


EMC parameter recommendation

Component No.FunctionRecommended value
 Cin CapacitanceFilter capacitor4.7μA/50V
Cout CapacitanceFilter capacitor2.2-10μA/50V
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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