1500W Zener TVS in a DO-13 can
The 1N6055A/TR is a bidirectional Zener TVS diode from Microchip Technology, rated to clamp 1500W (10/1000µs) of peak pulse power. It is built for general-purpose circuit protection on a 40V rail, with a minimum breakdown voltage of 44.7V and a clamping ceiling of 64.8V at the rated pulse current of 23.2A. The DO-13 through-hole package keeps the junction temperature rating wide: -55°C to 175°C, which suits industrial and telecom environments where ambient heat and surge events overlap.
With a reverse standoff voltage of 40V, this diode will not conduct appreciably below that rail level. The 44.7V minimum breakdown ensures the avalanche region starts above the normal operating voltage, so the protected line sees no leakage penalty during steady-state. The 64.8V maximum clamp at 23.2A is the voltage the downstream equipment must survive for the 10/1000µs pulse shape. Because it is a bidirectional device (single channel), it clamps both positive and negative transients symmetrically — one part covers a differential pair or an AC-coupled line without needing two diodes back-to-back.
Active production — sourcing through distribution
The tape-and-reel suffix (TR) indicates it ships on a reel for through-hole automated insertion.