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STMicroelectronics SMBJ10CA-TR — Circuit Protection

STMicroelectronics SMBJ10CA-TR TVS Diode, 600W Bidirectional

MPNSMBJ10CA-TR
Active

STMicroelectronics SMBJ, TRANSIL™ series, TVS Diode, Zener Type, Bidirectional, 1 Channel, 10V Reverse Standoff, 17V Clamping, DO-214AA SMB, Surface Mount, 600W Peak Pulse Power, -55°C to 150°C.

$0.5200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMBJ10CA-TR specifications
ParameterValue
TypeZener
SeriesSMBJ, TRANSIL™
MountingSurface Mount
Voltage - breakdown11.1V
Voltage - clamping (Max) @ ipp17V
Voltage - reverse standoff10V
Current - peak pulse (10/1000μs)37A
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 transient suppressor for 10V rails

It delivers 600W peak pulse power (10/1000µs waveform) and clamps at 17V maximum, with a minimum breakdown voltage of 11.1V. The single bidirectional channel means one device protects a pair of signal or power lines carrying AC or bipolar signals, without needing two unidirectional diodes back-to-back.

Protection window: standoff, breakdown and clamping

Above that, the device starts breaking down at 11.1V minimum, and the clamping voltage holds the transient to 17V maximum at the rated 37A peak pulse current. For a 10V rail with ±10% tolerance, the 11.1V breakdown gives enough guard band that normal ripple won't trigger false clamping, while the 17V clamp keeps downstream silicon within its absolute maximum ratings.

Frequently asked questions

Is SMBJ10CA-TR bidirectional?

Yes, SMBJ10CA-TR is a bidirectional TVS diode with one bidirectional channel. The 'CA' suffix in the order code indicates bidirectional polarity; a unidirectional variant would carry a different suffix. This means a single device protects both positive and negative swings on a line, suitable for AC signal lines or bipolar supply rails.

What is the peak pulse power of SMBJ10CA-TR?

The peak pulse power rating is 600W for a 10/1000µs waveform. This defines how much transient energy the device can absorb in a single pulse event before exceeding its thermal limits. For a 10V rail application, 600W provides robust protection against typical surge events from inductive loads or lightning-induced transients.