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  5. B0503/B0512/B0515/B0524LS-1WR3 dc dc 5V to 3.3V/12V/15V/24V 1W Isolated constant voltage input non stabilized single output power module
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B0503/B0512/B0515/B0524LS-1WR3 dc dc 5V to 3.3V/12V/15V/24V 1W Isolated constant voltage input non stabilized single output power module

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加水印 B05XXLS-1WR3 Series Mode list

Product Feature

1. Fixed voltage input, isolated and regulated output, power 1W

2. isolation voltage≤1500VDC

3. Low static current and high conversion efficiency

4. Low ripple, low noise

5. output short-circuit protection :Sustainable short circuit protection, automatic recovery

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

7. Small SIP package,plastic shell

8. 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

Items Working conditionsMin.Typ.Max.Unit

Input current

(fully loaded/


3.3VDC Input--378/6--/12mA
5VDC Input--224/5--/10
12VDC Input--93/3--/5
15VDC Input--74/2--/4
24VDC Input--47/1--/2
Reflected Ripple Current4.5--15--mA
Impulse voltage (Isec.max)3.3VDC Input-0.7--5VDC
5VDC Input-0.7--9
12VDC Input-0.7--18
15VDC Input-0.7--21
24VDC Input-0.7--30
Input filter type 
Capacitive filtering
Hot plug 
Not available

Output Characteristics(15v/±34mA)

ItemsWorking and test conditions Min.Typ.Max. Unit
Output loadLoad percentage 10--100%
Output VoltageAccuracyRefer to Error Envelope Curve ----±15.0%
Linear adjustment rate

Input voltage

variation ±1%

3.3V Output----±1.5%
Others----±1.2 %
Load Regulation



3.3VDC Output --1812%
5VDC Output --12
9VDC Output --8
12VDC Output --7
15VDC Output --6
24VDC Output--5
Ripple & Noise

Pure resistive load, 20MHz bandwidth,


Temperature Drift CoefficientFull load --
Output short circuit protectionContinuous short circuit protection, automatic recovery
Note: ①The test method of ripple and noise is twisted pair test method.

Typical Application Circuits

1. General application:

If it is required to further reduce the input and output ripple, a capacitor filter network can be connected to the input and output

ends, and the application circuit is shown in Figure 1.

However, attention should be paid to the selection of appropriate filter capacitors. If the capacitor is too large, it is likely to

cause startup problems. For each output, under the condition of ensuring safe and reliable operation, the recommended

capacitive load value is shown in Table 1


EMI typical application circuit



Notes:Output Load Requirements 

In order to ensure that the module can work efficiently and reliably, the minimum output load cannot be less than 10% of the rated load when in use. 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 the actual power used, otherwise the temperature of the resistor will be higher).

Product appearance size and pin definition, recommended printing layout


For more module mode, please feel free to contact Hi-link team.

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