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Microchip Technology SMAJ45E3/TR13 — Circuit Protection

SMAJ45E3/TR13 TVS Diode – 45V Standoff, 500W, DO-214AC

MPNSMAJ45E3/TR13
Active

Microchip Technology SMAJ45E3/TR13, Zener-type TVS diode, 45V reverse standoff, 500W peak pulse power, unidirectional, DO-214AC (SMA) package, Tape & Reel.

$0.1800Ref. price · indicative, final on quote
Microchip Technology SMAJ45E3/TR13 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMAJ45E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown50V
Voltage - clamping (Max) @ ipp80.3V
Voltage - reverse standoff45V
Current - peak pulse (10/1000μs)6.2A
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

45V rail surge clamp in DO-214AC

Its 50V minimum breakdown voltage ensures it stays off during normal operation, while the 80.3V maximum clamping voltage at 6.2A peak pulse current limits the voltage seen by downstream components during a surge. The single unidirectional channel suits DC rail protection where polarity is fixed.

Housed in the DO-214AC (SMA) package, the SMAJ45E3/TR13 is a surface-mount device supplied on Tape & Reel.

Microchip lists the SMAJ45E3/TR13 as Active, meaning no end-of-life notice is in effect.

Frequently asked questions

What is the datasheet for SMAJ45E3/TR13?

Designers need full electrical specs to validate fit and ensure protection levels match circuit requirements.

Where can I buy SMAJ45E3/TR13?

Buyers need to quickly identify authorized distributors with stock to avoid supply chain delays.

What is the price of SMAJ45E3/TR13?

Price comparison directly affects BOM cost and procurement decisions.

Is SMAJ45E3/TR13 in stock?

Real-time availability data is critical for production deadlines and avoiding line-down situations.

What is the equivalent part for SMAJ45E3/TR13?

Engineers need drop-in alternatives for flexibility or when primary source is unavailable.

Is SMAJ45E3/TR13 RoHS compliant?

Regulatory compliance is mandatory for products sold in many markets and affects procurement eligibility.