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Taiwan Semiconductor Corporation 1.5SMC15CA R7G — Circuit Protection

1.5SMC15CA R7G TVS Diode, 1500W, Bidirectional, DO-214AB

MPN1.5SMC15CA R7G
Active

Taiwan Semiconductor 1.5SMC series bidirectional TVS diode, 1.5SMC15CA R7G, 1500W peak pulse power, 12.8V reverse standoff, 21.2V clamp, DO-214AB (SMC) surface mount, tape and reel.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC15CA R7G specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown14.3V
Voltage - clamping (Max) @ ipp21.2V
Voltage - reverse standoff12.8V
Current - peak pulse (10/1000μs)74A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Bidirectional channels1

Product details

Bidirectional TVS for 12V rail protection

The 1.5SMC15CA R7G is a bidirectional Zener-type TVS diode from the 1.5SMC series, designed to clamp transients on general-purpose DC power and signal lines. It provides a single bidirectional channel in a DO-214AB (SMC) surface-mount package.

Peak pulse capability and clamping performance

The clamp voltage is the ceiling the protected circuit sees — a downstream 24 V-rated component has margin above that level. The 74 A peak pulse current handling means the device absorbs substantial surge energy without failing short, which is the failure mode that would take the protected rail down.

Board integration and temperature range

Housed in a DO-214AB (SMC) package, the diode is surface-mount and suits reflow assembly. No power line protection feature is implemented — this is a standard TVS for signal and low-voltage DC bus clamping, not for AC mains surge suppression.

Frequently asked questions

Where can I buy the 1.5SMC15CA R7G and check availability?

The 1.5SMC15CA R7G is an active part sourced through independent distribution.

What is the closest pin-compatible alternative to the 1.5SMC15CA R7G?

The 1.5SMC series includes other bidirectional TVS diodes at different standoff voltages, but a direct replacement within the same package and footprint would need to match the 12.8 V standoff, 21.2 V clamp, and 1500 W peak pulse rating.