10PCS New original B0503S-1W B0503S 1W DC-DC step-down power supply 5V to 3.3V dcdc isolated power supply
![10PCS New original B0503S-1W B0503S 1W DC-DC step-down power supply 5V to 3.3V dcdc isolated power supply](http://ae01.alicdn.com/kf/Hc7753a86a00940ccbc4c7a0ce85aa29az/10PCS-New-original-B0503S-1W-B0503S-1W-DC-DC-step-down-power-supply-5V-to-3.jpg_350x350.jpg)
sku: 4000835507192
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$12.70
Shipping from: China
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