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Microchip Technology SMAJ170AE3/TR13 — Circuit Protection

SMAJ170AE3/TR13 TVS Diode – 170V Standoff, 500W, DO-214AC

MPNSMAJ170AE3/TR13
Active

Microchip Technology SMAJ170AE3/TR13, Zener TVS diode, 170V reverse standoff (typ), 189V breakdown (min), 275V clamping (max) at 1.8A, 500W peak pulse power, DO-214AC (SMA) package, Tape & Reel.

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ170AE3/TR13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ170AE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown189V
Voltage - clamping (Max) @ ipp275V
Voltage - reverse standoff170V
Current - peak pulse (10/1000μs)1.8A
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

170V standoff — protection threshold for 170V DC rails

Its 170V reverse standoff voltage (typ) sets the maximum continuous DC voltage the protected line can carry without the device conducting — suitable for 170V DC power buses, telecom line cards, or industrial control rails that sit at that voltage level. The 500W peak pulse power rating defines the energy-handling envelope.

DO-214AC (SMA) — surface-mount footprint for reflow assembly

Packaged in a surface-mount DO-214AC (SMA) case, this TVS diode mates with a standard SMA footprint.

Active production — no obsolescence risk on this BOM line

Frequently asked questions

What is the breakdown and clamping voltage of SMAJ170AE3/TR13?

Minimum breakdown voltage is 189V. Maximum clamping voltage at the rated peak pulse current (1.8A, 10/1000µs waveform) is 275V.

What is the difference between SMAJ170AE3/TR13 and SMAJ170A?

The base product number is SMAJ170. The - suffix indicates lead-free / RoHS-compliant build, and /TR13 denotes Tape & Reel packaging. SMAJ170A without those suffixes would be a tin/lead version in a different reel format — the electrical specs (170V standoff, 189V breakdown, 275V clamping, 500W peak pulse) are identical across the variants.