These are high quality Single Pole - Double Throw (SPDT) relays. Use them to switch high voltage, and/or high current devices. This relay’s coil is rated up to 5V, with a minimum switching voltage of 5V. The contacts are rated up to 30A 250VAC or 30VDC
Transformer Sealed 12V 125mA
This is a PCB transformer which are vacuum molded and feature a very high proof voltage as a result. Used on the PCB, they provide electrical isolation as a power transfo..