Skip to main content
Log in
Vishay General Semiconductor - Diodes Division 1.5SMC18CAHE3/9AT — Circuit Protection

Vishay 1.5SMC18CAHE3/9AT TVS, 1500W, DO-214AB

MPN1.5SMC18CAHE3/9AT
Active

Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, bidirectional Zener TVS diode, 1.5SMC18CAHE3/9AT, 1500W peak pulse power, 15.3V reverse standoff, DO-214AB SMC package, Tape & Reel.

Vishay General Semiconductor - Diodes Division 1.5SMC18CAHE3/9AT datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC18CAHE3/9AT specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown17.1V
Voltage - clamping (Max) @ ipp25.2V
Voltage - reverse standoff15.3V
Current - peak pulse (10/1000μs)59.5A
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

1500 W peak pulse, DO-214AB, AEC-Q101

The 1.5SMC18CAHE3/9AT: The 15.3 V reverse standoff voltage means this part protects a 12 V or 15 V rail from transients without conducting during normal operation. Breakdown occurs at a minimum of 17.1 V, giving margin before the clamp activates.

Automotive-grade transient suppression

It is intended for load-dump, inductive kickback, and surge protection on power lines in engine control units, body controllers, and infotainment systems. The bidirectional configuration protects against both positive and negative transients with a single device, simplifying BOM count on bipolar or AC-coupled lines. The 1500 W rating at 10/1000 µs covers most automotive transient classes defined in ISO 7637-2 and ISO 16750-2.

Sourcing and compliance

The base product number is 1.5SMC18, indicating the 18 V breakdown family.

Frequently asked questions

How can I order the 1.5SMC18CAHE3/9AT or check stock?

The 1.5SMC18CAHE3/9AT is an active Vishay part.

Is the 1.5SMC18CAHE3/9AT AEC-Q101 qualified?

Yes, the series is Automotive, AEC-Q101 qualified, meaning it meets the automotive-grade reliability and temperature requirements for under-hood and cabin electronics.