PS2502-2/ASH – TBC

The PS2502-2/ASH is a dual-channel, non-RoHS compliant, optically coupled isolator. Based on the “PS2502-2 NEC/04” marking, it is very likely manufactured by Renesas (formerly NEC Electronics). This device utilizes infrared light-emitting diodes (LEDs) to optically couple the input signal to phototransistors on the output side, providing galvanic isolation. The “2” in the part number indicates a dual-channel configuration, allowing for the isolation of two independent signals within a single package. The “ASH” suffix may denote a specific tape and reel packaging configuration or a minor variation in electrical characteristics; however, without further documentation, the exact meaning is indeterminate. The absence of RoHS compliance indicates the presence of lead or other restricted substances, requiring careful consideration for applications with environmental regulations. The “NEC/04” marking likely refers to the original NEC design and a date code or manufacturing location.