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Diodes Incorporated SMAJ8.5A-13 — Circuit Protection

SMAJ8.5A-13 Diodes Inc TVS Diode, 400W, 8.5V, DO-214AC

MPNSMAJ8.5A-13
End of Life

Diodes Incorporated SMAJ8.5A-13, Zener TVS diode, 400W peak pulse power, 8.5V reverse standoff, 9.44V breakdown, 14.4V clamping, 27.7A Ipp, DO-214AC SMA package, Tape & Reel.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ8.5A-13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown9.44V
Voltage - clamping (Max) @ ipp14.4V
Voltage - reverse standoff8.5V
Current - peak pulse (10/1000μs)27.7A
Power - peak pulse400W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

Clamping voltage and protection window

The SMAJ8.5A-13 is a 400W unidirectional Zener TVS diode designed to clamp transients on an 8.5V DC rail. The reverse standoff voltage (8.5V) is the maximum continuous DC voltage the diode can withstand without conducting — your supply rail must stay at or below this level. That 14.4V ceiling is what the downstream IC sees; it must survive that peak without damage.

Package and board integration

Housed in the DO-214AC (SMA) package, this is a surface-mount device with a low-profile footprint suited for automated assembly. The wide temperature span means the clamping voltage and leakage current shift predictably across the range — the datasheet's typical curves show the breakdown voltage increases slightly at cold and decreases at hot, but the clamping ceiling stays within the specified max.

Active lifecycle and sourcing posture

No stock-holding claim — each RFQ is handled on its own terms.

Frequently asked questions

Where can I buy SMAJ8.5A-13 and how do I get a price?

The SMAJ8.5A-13 is available through independent distribution channels.

What is SMAJ8.5A-13's listed type on this Circuit Protection line?

The SMAJ8.5A-13 is a Zener-type TVS diode, meaning it uses the avalanche breakdown mechanism of a Zener junction to clamp transients. It is unidirectional with one channel, so it protects a single rail and must be oriented correctly on the PCB.