The 3809-S15 from Modular Devices is a DC to DC Converter with Input Voltage 16 to 50 V, Output Voltage 1 14.8 to 15.2 V, Output Current 1 0.0133 to 0.133 A, Output Power 2000 mW, Isolation Voltage 500 Vdc. Tags: Through Hole. More details for 3809-S15 can be seen below.