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Microchip Technology SMAJ160E3/TR13 — Circuit Protection

SMAJ160E3/TR13 TVS Diode – 160V, 500W, DO-214AC

MPNSMAJ160E3/TR13
Active

Microchip Technology SMAJ160E3/TR13, Zener TVS diode, 160V reverse standoff, 500W peak pulse power, unidirectional, DO-214AC (SMA) surface-mount package, Tape & Reel.

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ160E3/TR13 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ160E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown178V
Voltage - clamping (Max) @ ipp287V
Voltage - reverse standoff160V
Current - peak pulse (10/1000μs)1.7A
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

160V rail protection in a compact SMA package

Its 500W peak pulse power rating means it can absorb moderate surge events without failing short — the clamping voltage peaks at 287V at the rated 1.7A peak pulse current.

Breakdown and clamping window

Minimum breakdown voltage is 178V, so the diode stays off below that level and only conducts when the transient exceeds the rail by at least 18V. The 287V maximum clamping voltage at 1.7A peak pulse current sets the upper bound the downstream circuitry must survive — a 160V-rated capacitor or MOSFET with a 300V Vds margin would be adequate. No power line protection (bidirectional) — this is a unidirectional device intended for DC rails where the transient polarity is known.

Active production — ordering the exact code

The base product number is SMAJ160; the suffix indicates lead-free / RoHS-compliant construction.

Frequently asked questions

Can SMAJ160E3/TR13 be used for 24V systems?

No — the 160V reverse standoff voltage is far above a 24V rail. For a 24V system, select a TVS with a reverse standoff near 24V (e.g., SMAJ24A). Using a 160V-rated part would leave the 24V rail unprotected because the breakdown threshold is 178V, well above any transient the 24V bus would see.

Is SMAJ160E3/TR13 RoHS compliant?

Yes — the suffix in the ordering code indicates Microchip's lead-free / RoHS-compliant finish. The part is manufactured without lead, cadmium, or other restricted substances per the RoHS directive.