Clamping parameters and board-fit for a 64.1 V rail
The 1.5KE75C: Its breakdown voltage starts at 67.55 V min and the clamping voltage at peak pulse current (14.8 A, 10/1000 µs waveform) is 108.15 V max — this sets the voltage stress the downstream components must survive during a surge event. The bidirectional configuration (single channel) protects lines that swing both positive and negative relative to ground, such as AC signal pairs or differential data lines.
Obsolete — sourcing the 1.5KE75C today
Littelfuse has marked the 1.5KE75C as Obsolete. The part is available through independent surplus and broker channels — each lot is date-code and quantity verified at the time of the RFQ. Confirm the required quantity and date-code window when requesting a quote.
DO-201 axial package and temperature range
Housed in a DO-201AA (DO-27) axial-lead through-hole package, the 1.5KE75C mounts with the body off the board — the leads absorb thermal expansion and vibration. The junction temperature range spans -55°C to +175°C, covering industrial and some automotive under-hood environments.