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Microchip Technology SMBJ8.5E3/TR13 — Circuit Protection

SMBJ8.5E3/TR13 Zener TVS Diode – Microchip, 600W, DO-214AA

MPNSMBJ8.5E3/TR13
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Microchip Technology SMBJ8.5E3/TR13, Zener TVS diode, 8.5V reverse standoff, 600W peak pulse power, DO-214AA (SMB) surface-mount package.

$0.2850Ref. price · indicative, final on quote
Microchip Technology SMBJ8.5E3/TR13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMBJ8.5E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown9.44V
Voltage - clamping (Max) @ ipp15.9V
Voltage - reverse standoff8.5V
Current - peak pulse (10/1000μs)37.7A
Power - peak pulse600W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AA, SMB
Unidirectional channels1

Product details

Zener TVS for 8.5V rail protection

The SMBJ8.5E3/TR13: It is rated for 600W peak pulse power per the 10/1000µs waveform, with a clamping voltage of 15.9V at 37.7A peak pulse current. The 8.5V reverse standoff voltage means the device will not conduct leakage current below that threshold, making it suitable for protecting 5V or 3.3V logic rails that see occasional overvoltage events up to 8.5V continuous.

Package and mounting for automated assembly

The SMB footprint is standard across the SMBJ family, so a single PCB layout covers multiple voltage ratings.

Frequently asked questions

Is SMBJ8.5E3/TR13 bidirectional or unidirectional?

It is a unidirectional Zener TVS, with one channel. For bidirectional protection on AC lines or bipolar rails, a different SMBJ family variant (e.g., SMBJ8.5CA) would be needed.