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Microchip Technology SMAJ30CE3/TR13 — Circuit Protection

SMAJ30CE3/TR13 TVS Diode – 500W, 30V Standoff, DO-214AC

MPNSMAJ30CE3/TR13
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Microchip Technology SMAJ30CE3/TR13, Zener TVS diode, 500W peak pulse power, 30V reverse standoff, bidirectional, surface-mount DO-214AC (SMA) package.

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ30CE3/TR13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ30CE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown33.3V
Voltage - clamping (Max) @ ipp53.5V
Voltage - reverse standoff30V
Current - peak pulse (10/1000μs)9.3A
Power - peak pulse500W
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AC, SMA
Bidirectional channels1

Product details

500W Zener TVS in DO-214AC – 30V rail clamp

It clamps transients to a maximum of 53.5V at 9.3A peak pulse current, making it suitable for protecting 24V or 28V DC rails in industrial and telecom equipment. The DO-214AC (SMA) package is a common surface-mount footprint, compatible with many 500W TVS diodes from other manufacturers for second-source flexibility.

Minimum breakdown voltage is 33.3V, so a 30V nominal rail stays below the breakdown threshold during normal operation, avoiding leakage current.

Frequently asked questions

What is the peak pulse power of SMAJ30CE3/TR13?

500W peak pulse power per the 10/1000µs waveform, as listed in the datasheet.

What is the difference between SMAJ30CE3 and SMAJ30A?

The SMAJ30CE3 is a bidirectional device (single bidirectional channel), while the SMAJ30A is typically a unidirectional TVS. Both share the same 30V standoff and 500W rating, but the bidirectional version is symmetrical and can clamp both polarities with one part.