1500 W peak pulse, 6.4 V standoff — the clamping decision
The 1.5KE7V5A-T: Breakdown occurs at 7.13 V min, and the clamping voltage is held to 11.3 V at the rated peak-pulse current of 132 A (10/1000 µs waveform). The 6.4 V reverse standoff means the diode stays transparent on a 5 V or 6 V supply bus, only conducting when the line exceeds the breakdown threshold. For a 5 V rail with a 10 % tolerance (5.5 V max), the 6.4 V standoff provides 0.9 V of headroom before the TVS begins to leak — enough margin to avoid false clamping during normal ripple.
Obsolete — sourcing through independent channels
Diodes Incorporated lists the 1.5KE7V5A-T as Obsolete. For BOM lines that still carry this order code, supply is maintained through independent surplus and broker channels.
DO-201 axial package and temperature range
Housed in a DO-201AA / DO-27 axial-lead package (supplier device package DO-201), the 1.5KE7V5A-T is a through-hole part suited for point-to-point wiring or PCB mounting with a 0.375-inch lead spacing.