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STMicroelectronics SMBJ58CA-TR — Circuit Protection

STMicroelectronics SMBJ58CA-TR TVS Diode, 600W Bidirectional

MPNSMBJ58CA-TR
Active

STMicroelectronics SMBJ, TRANSIL™ series, Type Zener, Bidirectional TVS Diode, 600W peak pulse power, 58V reverse standoff, 93.6V clamping, DO-214AA (SMB) surface mount, -55°C to 150°C junction temperature.

$0.4600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMBJ58CA-TR specifications
ParameterValue
TypeZener
SeriesSMBJ, TRANSIL™
MountingSurface Mount
Voltage - breakdown64.4V
Voltage - clamping (Max) @ ipp93.6V
Voltage - reverse standoff58V
Current - peak pulse (10/1000μs)6.7A
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

600W bidirectional TVS in a DO-214AA package

With a peak pulse power rating of 600W (10/1000µs waveform) and a clamping voltage of 93.6V at 6.7A, it provides a defined protection level for general-purpose power and signal lines. The DO-214AA (SMB) surface-mount package suits automated assembly for industrial and telecom boards.

Clamping voltage and breakdown tolerance

The 93.6V maximum clamping voltage at the rated 6.7A peak pulse current tells you the highest voltage the protected circuit will see during a surge event. The minimum breakdown voltage is 64.4V, so the device starts conducting between 58V (standoff) and 64.4V, leaving a guard band of about 6.4V above the working rail. That margin keeps the TVS out of conduction during normal 58V operation while still clamping early enough to protect downstream semiconductors rated for 100V or less.

No power line protection feature is built in — this is a transient suppressor, not a crowbar or a filter.

It is RoHS compliant per the standard lead-free directive. For automotive-grade requirements, verify AEC-Q101 qualification separately — the general-purpose listing does not guarantee automotive release.

Frequently asked questions

Is SMBJ58CA-TR RoHS compliant?

Buyers need assurance for regulatory compliance, especially in European markets.

Where can I buy SMBJ58CA-TR in small quantities?

Engineers and small companies need affordable access without committing to full reels.

What is the clamping voltage of SMBJ58CA-TR?

Design engineers must know the voltage clamp level for circuit protection validation.

How does SMBJ58CA-TR compare to P6SMB58A?

Sourcing and design often require cross-referencing between brands for cost or availability.

Is SMBJ58CA-TR still in production?

Buyers must confirm long-term availability before committing to a design or large order.

What is the replacement for SMBJ58CA-TR?

Maintenance techs and brokers need drop-in alternatives when the exact part is unavailable.