Skip to main content
Log in
STMicroelectronics SMBJ13CA-TR — Circuit Protection

STMicroelectronics SMBJ13CA-TR TVS Diode, 600W Bidirectional

MPNSMBJ13CA-TR
Active

STMicroelectronics SMBJ13CA-TR, SMBJ TRANSIL™ series, bidirectional Zener TVS diode, 600W peak pulse power, 13V reverse standoff, 21.5V clamping, 29A peak pulse current, DO-214AA (SMB) surface mount package, -55°C to 150°C junction temperature.

$0.4900Ref. price · indicative, final on quote
STMicroelectronics SMBJ13CA-TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMBJ13CA-TR specifications
ParameterValue
TypeZener
SeriesSMBJ, TRANSIL™
MountingSurface Mount
Voltage - breakdown14.4V
Voltage - clamping (Max) @ ipp21.5V
Voltage - reverse standoff13V
Current - peak pulse (10/1000μs)29A
Power - peak pulse600W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AA, SMB
Bidirectional channels1

Product details

What this TVS diode protects and how it clamps

The STMicroelectronics SMBJ13CA-TR is a bidirectional Zener transient voltage suppressor from the SMBJ TRANSIL™ series, designed to clamp overvoltage transients on a 13V nominal rail. The 13V reverse standoff voltage means the protected line can operate at up to 13V DC without the diode conducting; when a transient exceeds the 14.4V minimum breakdown voltage, the TVS clamps the surge to a maximum of 21.5V while shunting up to 29A of peak pulse current. This part is intended for general-purpose overvoltage protection on power supply rails, data lines, and I/O ports in industrial, telecom, and consumer equipment.

Frequently asked questions

Is SMBJ13CA-TR bidirectional?

Yes, the SMBJ13CA-TR is a bidirectional Zener TVS diode. It clamps transients of both polarities with a single device, so it is suited for AC-coupled lines or differential pairs where the surge can swing positive or negative.

What is the peak pulse power rating of SMBJ13CA-TR?

The SMBJ13CA-TR is rated for 600W peak pulse power under a 10/1000µs waveform. This is the standard TVS surge rating that defines how much transient energy the device can absorb without failing.

What is the equivalent or replacement for SMBJ13CA-TR?

For dual-sourcing, any bidirectional 600W TVS in DO-214AA with a 13V standoff and 21.5V clamping voltage is a functional equivalent — verify the breakdown voltage tolerance and package footprint match your layout.