The 1SMA4761A is a SMA TVS RoHS device manufactured by FOSAN. It is a surface-mount transient voltage protection device, intended for use in suppressing overvoltage transients generated by ESD, lightning, inductive loads, etc. It has an operating voltage of 500W peak pulse power capable of handling + or - 4kV peak surge and is UL94V-0 rated. This product meets IEC 61000-4-2 (ESD) and IEC 61000-4-5 (EFT) requirements. It can be used in a wide range of applications, such as industrial control, A/V equipment, telecom, networking, consumer electronics, and automotive.