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Diodes Incorporated SMAJ18A-13 — Circuit Protection

SMAJ18A-13 Diodes Inc TVS Diode, 400W, DO-214AC, Obsolete

MPNSMAJ18A-13
Obsolete

Diodes Incorporated SMAJ18A-13 Zener TVS diode, 400W peak pulse power, 18V reverse standoff, 29.2V clamping, DO-214AC (SMA) package, unidirectional.

$0.3000Ref. price · indicative, final on quote
Diodes Incorporated SMAJ18A-13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SMAJ18A-13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown20V
Voltage - clamping (Max) @ ipp29.2V
Voltage - reverse standoff18V
Current - peak pulse (10/1000μs)13.7A
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

400W Zener TVS in a DO-214AC footprint

The SMAJ18A-13: The 20V minimum breakdown voltage ensures the device starts conducting before the clamping threshold, protecting downstream circuitry from transients up to the 400W limit.

Obsolete — sourcing through independent distribution

Diodes Incorporated lists the SMAJ18A-13 as Obsolete. The part is available through independent surplus and broker channels, with quantities and pricing confirmed at the time of RFQ. Buyers should verify lot traceability and date code freshness when sourcing from the spot market.