Obsolete — sourcing through independent channels
The 1.5KE100AE3/TR13 is listed as Obsolete by Microsemi Corporation. This means the manufacturer has discontinued production and no further factory orders are accepted. For existing BOM lines or legacy designs, this part is available through independent surplus and broker channels.
1500W peak pulse, 85.5V standoff — what the ratings mean
This means a transient spike on an 85.5V rail will be clamped to 137V, protecting downstream components rated for that margin. The unidirectional configuration (single channel) means it protects one polarity — reverse-bias connection will forward-conduct and may not protect the circuit.
Through-hole axial package, wide temperature range
Housed in a DO-201AA / DO-27 axial-leaded package (supplier device package CASE-1), this TVS is designed for through-hole mounting. The axial leads suit point-to-point wiring, terminal blocks, or PCB through-holes — a standard footprint for high-reliability power-supply and industrial protection circuits. The operating junction temperature range spans -65°C to +150°C, covering military, aerospace, and industrial environments where thermal cycling is severe. No power line protection feature is included — this is a pure transient clamp, not a surge-rated MOV replacement.