Mosorb™ Zener TVS – 1500W surge protection in a DO-201AD axial package
The 1.5KE82AG is an onsemi Mosorb™ series Zener TVS diode rated for 1500W peak pulse power (10/1000µs waveform). It is designed for general-purpose transient voltage suppression on DC power rails, signal lines, and low-voltage AC circuits where a single unidirectional clamp is sufficient. With a 70.1V reverse standoff voltage, a minimum breakdown of 77.9V, and a maximum clamping voltage of 113V at 13.3A peak pulse current, this part protects 48V and 60V nominal rails from surges up to 1500W.
Obsolete – plan a replacement now
onsemi has marked the 1.5KE82AG as Obsolete. For new designs or BOM sustainment, a form-fit-function replacement must be qualified. The 1.5KE82A (without the 'G' suffix) is electrically identical but may differ in packaging or lead-free finish – confirm the exact variant before substituting.
Sourcing and procurement reality
Because this part is obsolete, availability is limited to existing distributor stock and surplus channels. For volume or long-term programs, we recommend evaluating a cross from the same 1.5KE family (e.g., 1.5KE82A) or a comparable 1500W TVS in DO-201AD.
