What this TVS is and where it fits
The 1.5KE75A is a unidirectional Zener transient-voltage-suppression diode from onsemi's Mosorb™ series, rated for 1500W peak pulse power. It clamps transients at 103V maximum, with a reverse standoff of 64.1V and a minimum breakdown voltage of 71.3V — typical for 75V rail protection in general-purpose industrial, telecom, and power-supply circuits. Housed in an axial-lead package, it is through-hole mountable and rated for operation from -65°C to 175°C junction temperature.
Why the obsolete status matters for your BOM
Any stock available is last-time-buy or surplus inventory. For a production BOM, plan a qualification and substitution now.
Sourcing this part today
The axial package is still common across the 1.5KE family, so a direct replacement from the same series (e.g., 1.5KE75A from another brand or the CA variant) is possible — confirm the unidirectional vs bidirectional requirement first.
