This is a DC-DC converter module from ROHM, specifically the DTC115ECAHZGT116 model. It is a 5V to 12V, 15W isolated output converter that can provide an isolation of 2.5kV. It has a 4:1 input voltage range, a maximum efficiency of up to 97.8%, and a wide temperature range of -40° - 85°C. It also has the ability to provide OVP, OLP, and OTP protection. It is a 185-pin module that is specifically designed for industrial and automotive applications.