The 1N6296A-E3/73: The 1N6296A-/73 is a unidirectional TVS Zener from Vishay's TransZorb series — a transient voltage suppressor that clamps overvoltage events by avalanche-breaking at a defined breakdown voltage and shunting the surge current away from the protected node. The DO-201AA axial package is the through-hole footprint — lead diameter and body geometry mate to standard PCB hole patterns, and the axial orientation suits board layouts where the TVS is placed inline on a power rail before the load. This is not a power-line protection device (reports No for that attribute); it protects downstream circuitry on a signal or lower-current power rail. Operating junction temperature runs from -55 °C to 175 °C — the wide range covers both cold-start automotive environments and high-ambient industrial enclosures without derating the peak pulse rating.
How to read the voltage specs for your rail
Reverse standoff of 94 V typical is the maximum voltage the TVS blocks in the off state without conducting. The breakdown minimum of 105 V is where avalanche begins — so the TVS sits idle above 94 V and stays idle until a surge raises the rail above 105 V. Once avalanche fires, the clamp voltage climbs along its V-I characteristic; the 152 V ceiling is specified at the rated 9.9 A peak pulse current. For a 48 V nominal rail, the 94 V standoff gives roughly 2× margin; for a 72 V rail the margin narrows and you would verify the clamping envelope against the transient amplitude your system is rated to absorb. For larger surges you add series impedance upstream or step to a higher-power TVS family.
Active production — what that means for sourcing
Vishay marks this part Active, so it carries standard production lead times through authorized channels. No official successor or cross-reference appears in the record for this specific order code — the base number 1N6296 identifies the family but the -/73 suffix encodes the Tape & Box packing variant, so confirm the packing format before committing to a second-source alternative.