Obsolete — sourcing reality for the 1.5KE250CA-T
The 1.5KE250CA-T is listed as obsolete by Diodes Incorporated. No stock-holding claim; availability and current pricing are established per inquiry.
Clamp voltage and peak pulse — what 344V at 5A means on the bench
When the transient exceeds breakdown, the device clamps at 344V maximum while conducting a peak pulse current of 5A (10/1000µs waveform). The 344V clamp ceiling means downstream components must withstand at least that voltage during the pulse — a 400V-rated MOSFET or capacitor has margin; a 300V-rated part does not. The bidirectional configuration (single channel) protects lines that swing both positive and negative relative to ground — common on AC signal pairs or differential data buses.
DO-201 axial — board-fit and handling
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE250CA-T mounts through-hole. The DO-201 footprint is standard for 1.5kW TVS diodes — the lead diameter and body length match the common industry hole pattern, so a replacement from another manufacturer with the same package fits without a board spin. The axial leads require no special soldering profile beyond standard wave or hand-solder — the junction temperature rating allows the brief thermal shock of solder bath.