Is there a pin-compatible replacement for SMBJ5.0CA-TR?

Yes, SMBJ5.0CA-13-F is a strong candidate for a pin-compatible replacement. It uses the same standard SMB (DO-214AA) 2-pin package and has matching key electrical functions.

What risks should I check before replacing SMBJ5.0CA-TR?

The primary risk is standoff voltage mismatch, which determines the protection level. Also check the clamping voltage, peak power rating, and dynamic parameters like capacitance, which can affect signal integrity in high-speed circuits.

SMBJ5.0CA-TR Alternatives, Datasheet & Cross Reference | STMicroelectronics

SMBJ5.0CA-TR is a 600W, 5.0V bidirectional TVS diode from STMicroelectronics in an SMB package, used for overvoltage protection. This page reviews potential alternatives for your design.

AI replacement insight

Electrical riskhigh

Using a part with a higher standoff voltage (e.g., 6.5V) will not provide adequate overvoltage protection for a 5V system.

Package risklow

The SMB (DO-214AA) package is highly standardized, minimizing physical compatibility issues.

Can it be replaced directly?

Yes, SMBJ5.0CA-13-F from Diodes Inc. is a strong candidate for direct replacement, but datasheet parameters like capacitance and leakage should be verified.

Best replacement path

The best replacement path is to select a TVS diode with an identical 5.0V standoff voltage, 600W power rating, and SMB package, such as the SMBJ5.0CA-13-F.

Main risk

The main risk is selecting a part with a different standoff voltage, which will either fail to protect the circuit or clamp prematurely.

Recommended alternatives

A strong alternative from Diodes Inc. with matching key electrical parameters and package.

View details

Alternative comparison matrix

Feature / factor	SMBJ5.0CA-TR	SMBJ5.0CA-13-F	SMBJ6.5CA	Compatibility / risk
Package	SMB (DO-214AA)	SMB (DO-214AA)	DO-214AA (SMB)	SMB (DO-214AA) / DO-214AA (SMB) — Same package family ensures physical compatibility.; SMBJ6.5CA: Package is form-factor compatible.
Voltage	5.0 V	5.0 V	6.5 V	5.0 V / 6.5 V — Identical standoff voltage ensures correct protection level.; SMBJ6.5CA: Higher standoff voltage; will not protect a 5V rail correctly.
Power	600 W	600 W	600 W	600 W — Peak pulse power rating is identical.; SMBJ6.5CA: Peak pulse power rating is identical.
Polarity Or Type	Bidirectional	Bidirectional	-	Bidirectional — Polarity matches target.
Clamping Voltage	9.2 V	9.2 V	11.2 V	9.2 V / 11.2 V — Maximum clamping voltage is identical.; SMBJ6.5CA: Higher clamping voltage provides weaker protection.

Application & sourcing insights

Questions & answers

The best alternative found is SMBJ5.0CA-13-F from Diodes Incorporated. It matches the target's critical 5.0V standoff voltage, 600W power rating, bidirectional polarity, and SMB package.