1500W Zener TVS for 45.4V rails
The 1.5KE56CHE3/73: It clamps at 80.5V maximum and has a reverse standoff voltage of 45.4V, making it suited for protecting 45V nominal DC buses in automotive power distribution.
Clamping and breakdown window
The 30V window between standoff and clamp gives the TVS headroom to absorb transients without exceeding the protected rail's absolute maximum rating. The single bidirectional channel handles symmetrical clamping — positive and negative transients are clamped to the same magnitude, which suits AC-coupled signal lines or dual-polarity supplies where the TVS must block both polarities.
DO-201AA axial package — board integration
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE56CHE3/73 is a through-hole device. The axial body and leads are suited for point-to-point wiring, terminal strips, or PCB mounting where the lead bend radius is controlled to avoid stress on the glass passivation. The Tape & Box (TB) packaging format is intended for hand-insertion or low-volume automated assembly — not reel-fed pick-and-place. The axial leads require forming before insertion.
Obsolete — sourcing through independent channels
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