Obsolete — last-time-buy sourcing
The 1.5KE250CA-E3/54: The 1.5KE250CA-/54 is marked Obsolete by Vishay General Semiconductor - Diodes Division, meaning the manufacturer has ended regular production and no further factory orders are accepted. No official successor order code is recorded for this part. Sourcing is through independent distribution channels; availability and pricing are confirmed at RFQ against the BOM quantity.
Clamping performance — 344V at 4.4A
This bidirectional TransZorb TVS diode clamps at 344V maximum when hit with a 4.4A peak pulse current (10/1000µs waveform). The 214V reverse standoff voltage means the protected line can ride through normal 214V DC without the diode conducting leakage. Rated for 1.5kW peak pulse power, the 1.5KE250CA-/54 absorbs transient energy from lightning-induced surges, inductive load switching, or ESD events in general-purpose DC bus and telecom circuits.
Breakdown window and temperature range
Minimum breakdown voltage is 237V, so the diode starts conducting between 237V and the 344V clamp ceiling.