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Microchip Technology SMBJ11AE3/TR13 — Circuit Protection

SMBJ11AE3/TR13 Zener TVS Diode – 600W, 11V Standoff

MPNSMBJ11AE3/TR13
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Microchip Technology SMBJ11AE3/TR13, Zener TVS diode, 600W peak pulse power, 11V reverse standoff, 18.2V clamping at 33A, unidirectional, DO-214AA (SMB) surface mount, -65°C to 150°C junction temperature.

$0.2850Ref. price · indicative, final on quote
Microchip Technology SMBJ11AE3/TR13 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMBJ11AE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown12.2V
Voltage - clamping (Max) @ ipp18.2V
Voltage - reverse standoff11V
Current - peak pulse (10/1000μs)33A
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

600W Zener TVS – 11V standoff, DO-214AA

The SMBJ11AE3/TR13 is a unidirectional Zener TVS diode from Microchip Technology, rated for 600W peak pulse power per the 10/1000 µs waveform.

Clamping voltage and surge current – the margin decision

If the downstream ICs are rated for 20V absolute max, this diode leaves 1.8V of headroom — tight but workable. The 33A peak pulse current rating at the 10/1000 µs waveform defines the diode's ability to survive a lightning or inductive-load transient without failing short. The 600W rating is derated at elevated temperatures — the datasheet derating curve starts at 25°C and reduces linearly to zero at 150°C.

Frequently asked questions

Is the SMBJ11AE3/TR13 unidirectional or bidirectional?

It is a unidirectional Zener TVS diode (one channel). For bidirectional protection on the same rail, look at the SMBJ11CA series from Microchip.

What is the closest pin-compatible alternative to the SMBJ11AE3/TR13?

The Littelfuse SMBJ11A is a direct functional cross in the same DO-214AA package with identical 600W rating, 11V standoff, and 18.2V clamping. Electrical specs match closely enough for a BOM swap, but confirm the breakdown voltage tolerance and surge waveform rating against your application conditions.