Transient protection for 24V rails
The 1.5KE36A-E3/51: Its 30.8V reverse standoff voltage sits comfortably above a 24V rail, while the 34.2V minimum breakdown ensures the device stays off during normal operation and only conducts when a surge pushes the line above that threshold. The 1500W peak-pulse rating at that waveform gives the energy-handling margin needed for industrial surge environments like motor drives or power supplies.
Last Buy — sourcing reality
Vishay has placed the 1.5KE36A-/51 in Last Buy status. This means the manufacturer is no longer accepting new orders for ongoing production; remaining inventory is being consumed through the end-of-life allocation. For new designs, a pin-compatible TVS with the same package and ratings should be selected. Sourcing for this part now runs through independent distribution and surplus channels. Quantity and pricing are confirmed per RFQ — no stock-holding claim is made, and each lot is verified for authenticity and date code before shipment.
Package and thermal envelope
Housed in the DO-201AA (DO-27) axial-lead package, the 1.5KE36A-/51 is a through-hole device suited for point-to-point wiring or PCB mounting with lead forming. The axial body handles the thermal pulse of a 1500W surge without derating down to -55°C; the junction temperature range extends to 175°C, covering high-ambient environments like telecom cabinets or under-hood electronics.