TVS diode parametrics and fit
The 1.5KE91-E3/73: The DO-201AA (DO-27) axial-lead through-hole package suits point-to-point wiring or PCB mounting where a high-surge device is needed in a standard footprint.
1.5KE91-E3/73 Vishay TransZorb TVS, 1500W, 73.7V Standoff
MPN1.5KE91-E3/73
Obsolete
Vishay General Semiconductor TransZorb® Zener TVS diode, 1.5KE91-/73, 1500W peak pulse, 73.7V reverse standoff, 131V clamp, 11.5A Ipp, DO-201AA axial, through hole.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Zener |
| Series | TransZorb® |
| Mounting | Through Hole |
| Voltage - breakdown | 81.9V |
| Voltage - clamping (Max) @ ipp | 131V |
| Voltage - reverse standoff | 73.7V |
| Current - peak pulse (10/1000μs) | 11.5A |
| Power - peak pulse | 1500W (1.5kW) |
| Power line protection | No |
| Operating temperature | -55°C~175°C(TJ) |
| Package | Tape & Box (TB) |
| Applications | General Purpose |
| Case | DO-201AA, DO-27, Axial |
| Unidirectional channels | 1 |
Product details
Frequently asked questions
Where can I buy the 1.5KE91-/73 and get a price?
The 1.5KE91-/73 is sourced through independent distribution. Submit an RFQ for current availability and pricing — no stock or price figures are published here.
What is the closest pin-compatible alternative to the 1.5KE91-/73?
No official pin-compatible alternative or successor is recorded for this part. A parametric search for a 1500 W, 73.7 V standoff unidirectional TVS in DO-201AA may yield functional equivalents, but no direct cross-reference is confirmed.