1500 W peak pulse in a DO-201 axial body
The 1.5KE9.1AHR0G: It clamps a transient at 13.4 V maximum when the surge current hits 117 A, protecting the downstream rail from exceeding that voltage. The reverse standoff voltage is 7.78 V typical, meaning the diode draws negligible leakage below that level and only conducts when the line exceeds the 8.65 V minimum breakdown threshold.
This part carries AEC-Q101 qualification, the automotive-grade stress test for discrete semiconductors. The DO-201AA axial package (also known as DO-27) is a through-hole body with a 0.052-inch diameter lead.
Active production and sourcing posture
The base product number 1.5KE9.1 identifies the 9.1 V breakdown family; the AHR0G suffix denotes the automotive grade, AEC-Q101 qualification, and tape-and-reel packaging.