https://www.wallindustries.com/dc_products/sud1-15s33/
SUD1-15S33 | Wall Industries
Industrial, Datacom, Unregulated, DC/DC Converter, 1 Watt, 3.3VDC Single Output, 303mA, 15VDC Wide Input Range, Compact, 3000VDC Isolation, SUD1 Series
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