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Vishay General Semiconductor - Diodes Division 1.5SMC7.5CAHE3/9AT — Circuit Protection

Vishay 1.5SMC7.5CAHE3/9AT TVS Diode, 1.5 kW, 6.4 V, DO-214AB

MPN1.5SMC7.5CAHE3/9AT
Active

Vishay General Semiconductor 1.5SMC7.5CAHE3/9AT, AEC-Q101 automotive TVS (TransZorb®), 1.5 kW peak pulse, 6.4 V standoff / 7.13 V breakdown / 11.3 V clamping at 133 A, DO-214AB (SMC), bidirectional, surface mount, Tape & Reel.

Vishay General Semiconductor - Diodes Division 1.5SMC7.5CAHE3/9AT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC7.5CAHE3/9AT specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown7.13V
Voltage - clamping (Max) @ ipp11.3V
Voltage - reverse standoff6.4V
Current - peak pulse (10/1000μs)133A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-214AB, SMC
Bidirectional channels1

Product details

1.5 kW peak-pulse TVS in DO-214AB SMC

The 1.5SMC7.5CAHE3/9AT: The CA suffix denotes the bidirectional polarity variant; the HE3/9A is a Vishay lot-traceability suffix. Mounting is surface mount, supplied on Tape & Reel.

What the voltage ratings mean for downstream protection

The reverse standoff voltage of 6.4 V typ defines the bias the circuit applies during normal operation — above this the TVS begins to clamp. Selecting a TVS for an automotive 12 V rail, the standoff sits above the nominal battery voltage with headroom, and the clamping ceiling must stay below the absolute-max rating of whatever downstream IC sits behind it.

Frequently asked questions

What does the CA suffix mean on the 1.5SMC7.5CAHE3/9AT?

The CA suffix designates the bidirectional polarity variant of the 1.5SMC series. The base part number encodes the nominal standoff voltage (1.5SMC7.5 = 7.5 V class), and the CA bidirectional configuration is used on circuits where polarity reversal or AC-line clamping is a design requirement. The HE3/9A is a Vishay internal lot-traceability code — it does not affect the electrical rating or the selection decision.