Transient voltage suppressor for 240V AC rails
The 1.5KE300A-G: The 3.62 A peak pulse current rating at the 10/1000 µs pulse defines the maximum surge the diode can absorb before the junction exceeds its thermal limit. For a 240 V AC line, the 256 V standoff gives headroom above the nominal peak (339 V) while the 414 V clamp stays below typical downstream semiconductor breakdown thresholds.
Through-hole DO-201 package and board integration
The DO-201AA (also known as DO-27) axial-lead package suits point-to-point wiring or through-hole PCB mounting. Tape and Box (TB) packaging is specified for the 1.5KE300A-G, which typically ships in ammo-pack or bulk format for axial components — confirm the reel or box quantity with your distributor at RFQ time, as the package code does not specify a standard reel count.
Active lifecycle and sourcing posture
No official successor or pin-compatible cross-reference is listed by the manufacturer. The 1.5KE series is a standard JEDEC-registered TVS diode family, so parametric equivalents from other brands (same standoff, same package) exist but are not formally second-sourced by Comchip.