1500 W bidirectional transient suppressor for 128 V rails
The 1.5KE150CA-T: The 143 V minimum breakdown voltage ensures the avalanche region is reached before the protected circuit sees damaging overvoltage.
Through-hole DO-201 package and temperature range
Housed in a DO-201AA axial-lead package (also known as DO-27), the 1.5KE150CA-T mounts through-hole and is supplied on tape and reel or cut tape. The junction operates from -55°C to 175°C, covering industrial and some automotive under-hood environments where the ambient temperature stays within that band. This is a single-channel bidirectional device — no polarity concerns during installation, which simplifies board layout and reduces the risk of reverse-insertion errors in high-vibration or field-service environments.
Obsolete — sourced through independent channels
Diodes Incorporated lists the 1.5KE150CA-T as obsolete. For a replacement in a new design, look for a bidirectional TVS in a DO-201 package with a 128 V standoff and 1500 W peak pulse rating from the same or another manufacturer — the clamping voltage and breakdown window will need to match the protected rail's transient immunity requirements.