B1205-1WR2 1W Isolated DC-DC Converter Module, 12V to 5V
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Prices updated: 13 Oct 2026
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About this product
The B1205-1WR2 is a 1 W isolated DC-DC converter module that produces a 5 V output from a 10.8 V to 13.2 V DC input. It supplies up to 200 mA and provides isolation up to 1500 VDC, and is intended for board-level supplies where output ripple and regulation are not critical.
Specifications
- Input voltage
- 10.8 V to 13.2 V DC
- Output voltage
- 5 V DC
- Output current
- 20 mA to 200 mA
- Isolation voltage
- 1500 VDC
- Efficiency
- Up to 86%
- Max capacitive load
- 220 µF
Frequently asked questions
Can it be used with a 12 V battery?
Yes, as long as the input stays within 10.8 V to 13.2 V. A fully charged 12 V lead-acid battery can exceed 13.2 V, so verify the input range or add a regulating stage before connecting.
What is the maximum output capacitance?
The listing allows up to 220 µF on the output. Larger output capacitors can prevent the converter from starting, so keep the total within that value.
