Is there a pin-compatible replacement for SMAJ5.0A-TR?

Yes, SMAJ5.0A-13-F is a likely pin-compatible replacement for SMAJ5.0A-TR. It shares the same standard 2-pin SMA (DO-214AC) package and has the same electrical function.

What risks should I check before replacing SMAJ5.0A-TR?

The main risk is selecting an alternative with a different standoff voltage. Parts like SMAJ6.0A have a higher voltage (6.0V vs 5.0V), which may not adequately protect circuits designed for 5V protection. Always verify the candidate's datasheet.

SMAJ5.0A-TR Alternatives, Datasheet & Cross Reference | STMicroelectronics

Find alternatives for the SMAJ5.0A-TR, a 400W, 5V unidirectional TVS diode in an SMA package. We've analyzed multiple candidates to identify direct replacements and functional alternatives.

AI replacement insight

Electrical risklow

For SMAJ5.0A-13-F, electrical risk is low. For others, it's medium due to higher standoff voltage.

Package risklow

All suggested alternatives use the same SMA/DO-214AC package, ensuring physical compatibility.

Can it be replaced directly?

Yes, SMAJ5.0A-13-F is a direct cross-vendor replacement with matching key electrical parameters and package.

Best replacement path

SMAJ5.0A-13-F from Diodes Inc. is the best alternative, offering identical key specifications and package.

Main risk

For alternatives with higher standoff voltage (e.g., SMAJ6.0A), the primary risk is reduced overvoltage protection margin.

Recommended alternatives

A cross-vendor alternative from Diodes Inc. with matching package and key electrical ratings.

View details

Alternative comparison matrix

Feature / factor	SMAJ5.0A-TR	SMAJ5.0A-13-F	SMAJ6.0A	SMAJ6.5A	Compatibility / risk
Package	SMA (DO-214AC)	SMA (DO-214AC)	DO-214AC (SMA)	DO-214AC (SMA)	SMA (DO-214AC) / DO-214AC (SMA) — Package matches, enabling form-fit compatibility.; SMAJ6.0A: Package matches, enabling form-fit compatibility.; SMAJ6.5A: Package matches, enabling form-fit compatibility.
Voltage	5.0V	5.0V	6.0V	6.5V	5.0V / 6.0V / 6.5V — Reverse standoff voltage matches target.; SMAJ6.0A: Higher standoff voltage reduces protection margin.; SMAJ6.5A: Higher standoff voltage reduces protection margin.
Power	400W	400W	400W	400W	400W — Peak pulse power rating matches.; SMAJ6.0A: Peak pulse power rating matches.; SMAJ6.5A: Peak pulse power rating matches.
Polarity Or Type	Unidirectional	Unidirectional	Unidirectional	Unidirectional	Unidirectional — Polarity matches target.; SMAJ6.0A: Polarity matches target.; SMAJ6.5A: Polarity matches target.
Manufacturer	STMicroelectronics	Diodes Incorporated	-	-	Diodes Incorporated — Cross-vendor alternative from a major manufacturer.

Application & sourcing insights

Questions & answers

The best alternative to SMAJ5.0A-TR is SMAJ5.0A-13-F from Diodes Incorporated. It matches the critical parameters including 5.0V standoff voltage, 400W power rating, unidirectional polarity, and SMA package.