Recom Isolated DC-DC Converter, Vin 21.6 → 26.4 V dc, Vout 15V dc, I/O isolation 3000V dc. Recom 1W SIP Single Output Unregulated Isolated DC-DC Converter - RK Series. 1 x Recom DC/DC converter RN-3.33.3S, 3.3Vin, 3.3Vo 378mA 1.25W.
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