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Microchip Technology SMBJ28E3/TR13 — Circuit Protection

SMBJ28E3/TR13 Microchip Zener TVS Diode 600W 28V DO-214AA

MPNSMBJ28E3/TR13
Active

Microchip Technology SMBJ28E3/TR13, Zener TVS diode, 600W peak pulse power, 28V reverse standoff, unidirectional, DO-214AA (SMB) surface-mount package, Tape & Reel.

$0.2850Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMBJ28E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown31.1V
Voltage - clamping (Max) @ ipp50V
Voltage - reverse standoff28V
Current - peak pulse (10/1000μs)12A
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

Transient protection for 24V rails

Rated at 600W peak pulse power for a 10/1000µs waveform, the device can absorb 12A peak pulse current before the clamp voltage reaches 50V maximum. That clamp margin — 50V on a 28V rail — gives downstream converters and ICs a survivable voltage envelope during a transient.

Temperature range and package

The unidirectional configuration protects a single polarity rail; for AC or bidirectional lines, a pair back-to-back or a dedicated bidirectional part is needed.

Frequently asked questions

Is SMBJ28E3/TR13 equivalent to SMBJ28A?

The SMBJ28A is a common 28V TVS from the same SMBJ family, but the '' suffix on this Microchip part indicates a specific lead-free finish and qualification variant. Electrical ratings — 28V standoff, 31.1V min breakdown, 50V clamp, 600W peak pulse — are identical to the standard SMBJ28A. The '' parts are fully compatible for the same BOM position; confirm the exact manufacturer and date code requirements for your application.