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Microchip Technology SMAJ26AE3/TR13 — Circuit Protection

SMAJ26AE3/TR13 Zener TVS Diode – 26V, 500W, DO-214AC

MPNSMAJ26AE3/TR13
Active

Microchip Technology SMAJ26AE3/TR13, Zener TVS diode, 26V reverse standoff, 28.9V breakdown min, 500W peak pulse power, DO-214AC (SMA) package, tape & reel, surface mount, active lifecycle.

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ26AE3/TR13 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ26AE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown28.9V
Voltage - clamping (Max) @ ipp42.1V
Voltage - reverse standoff26V
Current - peak pulse (10/1000μs)11.9A
Power - peak pulse500W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Unidirectional channels1

Product details

26V rail clamp — DO-214AC Zener TVS

Its reverse standoff voltage is 26V, and the minimum breakdown voltage is 28.9V, so it stays off during normal operation and starts conducting when the rail rises above that threshold. Peak pulse power is rated at 500W for a 10/1000µs waveform, with a clamping voltage of 42.1V at 11.9A peak pulse current. Housed in a DO-214AC (SMA) package, surface-mount, supplied on tape & reel.

Sizing the clamp for your surge budget

The 500W peak pulse power is the headline surge rating — but it's specified at a 10/1000µs waveform. If your transient is shorter (e.g. 8/20µs), the part can absorb more peak current; if longer, derate accordingly. The 11.9A peak pulse current is the limit at that waveform. Keep it on DC rails under 26V.

Active production — no last-time-buy rush

Microchip lists the SMAJ26AE3/TR13 as Active. For a storeroom keeper, that means you can order this part for the next several years without a last-time-buy scramble. Supplied on tape & reel — store the reels in a dry cabinet if the ambient humidity is above 60% RH; the DO-214AC body is not moisture-sensitive per JEDEC Level 1, but the carrier tape can absorb moisture over long storage.

Frequently asked questions

Is SMAJ26AE3/TR13 RoHS compliant?

The evidence does not list a RoHS compliance statement. Microchip typically marks RoHS-compliant parts with an '' suffix in the order code — this part carries that suffix (in SMAJ26AE3/TR13), which is their standard RoHS indicator. Confirm with the datasheet or your Microchip rep for formal certification.

What is the closest pin-compatible alternative to SMAJ26AE3/TR13?

The base product number is SMAJ26. Microchip offers the same die in different packaging or screening levels (e.g., SMAJ26A, SMAJ26AE3). Any DO-214AC Zener TVS with 26V standoff and 500W rating from another brand (e.g., Littelfuse, Vishay) is a functional cross, but pinout and footprint are identical across the SMA package standard. Verify the breakdown voltage tolerance and clamping spec against your design margin.