Zener TVS for 7 V rail clamping – DO-201AD axial
The 1.5KE8.2A is a unidirectional Zener TVS from onsemi's Mosorb™ series, designed to clamp transients on a nominal 7 V rail. Its minimum breakdown voltage is 7.79 V, and it clamps peak pulse current up to 124 A (10/1000 µs waveform) at a maximum of 12.1 V. The 1500 W peak pulse power rating gives a healthy energy margin for industrial and automotive-grade surge protection.
Lifecycle reality – obsolete, last-time-buy window
onsemi lists the 1.5KE8.2A as Obsolete. For a BOM line that still specifies this exact order code, the only sourcing path is existing inventory or last-time-buy lots. We source per RFQ against the required quantity; availability and date-code provenance are confirmed at quote time.
Package and mounting – through-hole axial fit
The DO-201AD axial package is a through-hole form factor that requires a drilled PCB hole and hand or wave soldering. The axial leads are typically bent and inserted into plated through-holes; the body sits above the board. This package is common in power supplies, motor drives, and telecom line cards where a rugged mechanical anchor is preferred over surface-mount.
Temperature range – harsh-environment capable
Rated for -65°C to 175°C junction temperature, this part can handle the thermal extremes of under-hood automotive, outdoor telecom cabinets, and industrial enclosures without derating concerns at the operating temperature.