1500W Zener TVS – DO-201AD axial package
The 1.5KE22AG is a unidirectional Zener TVS diode from onsemi's Mosorb™ series, rated for 1500W peak pulse power at the 10/1000µs waveform. It clamps at 30.6V max with a 49A peak pulse current rating, making it suitable for protecting 18.8V nominal rails in general-purpose power supplies and industrial control circuits.
Voltage thresholds and surge capability
The reverse standoff voltage is 18.8V typ, meaning the device does not conduct appreciably below that rail voltage. Breakdown occurs at 20.9V min, and the clamping voltage is held to 30.6V max at the rated 49A peak pulse current — a tight clamp for a 1500W device that keeps downstream silicon within its safe operating area during a surge event.
Obsolete status and sourcing reality
onsemi lists the 1.5KE22AG as Obsolete. Sourcing is per RFQ; we can locate inventory across our distributor network and quote against your line-item quantity.
The DO-201AD axial package is through-hole mounted — the lead bend and body length are standard for axial-lead TVS diodes, so it fits existing PCB layouts designed for the 1.5KE series footprint.
