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. The wide operating temperature range of -65°C to 175°C suits outdoor telecom, industrial control, and military-grade equipment.
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Because this part is obsolete, availability is limited to existing distributor stock and surplus channels. We can source and quote the 1.5KE82AG against your BOM quantity – submit an RFQ for current pricing and lead time. 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.