Automotive-grade transient suppressor for 43.6 V rails
The 1.5KE51CAHE3_B/C: It clamps transients at 70.1 V maximum while conducting 22 A peak pulse current, making it a fit for protecting 43.6 V reverse-standoff rails in engine-bay or chassis electronics.
What the key ratings mean for your BOM
The 43.6 V reverse standoff voltage is the maximum continuous DC voltage the TVS can block without conducting — a 48 V nominal bus with transients stays protected as long as the steady-state rail stays below this level. Breakdown occurs at 48.5 V minimum, and the clamping voltage is capped at 70.1 V at the 22 A peak pulse current.
Sourcing and lifecycle posture
The AEC-Q101 qualification and automotive grade confirm it meets the reliability and PPAP requirements for automotive OEMs — a key consideration for BOM lines that must pass customer-specific qualification audits.