Is there a pin-compatible replacement for SMBJ15A?

Yes, parts with the MPN 'SMBJ15A' from manufacturers like Littelfuse, ST, and Vishay are typically pin-compatible, sharing the same SMB (DO-214AA) package and 2-pin layout. However, always verify the datasheet for the specific manufacturer.

What risks should I check before replacing SMBJ15A?

When replacing the SMBJ15A, check for minor variations in dynamic impedance, leakage current, and exact clamping voltage between manufacturers. Also, confirm the package footprint on your PCB matches the datasheet dimensions.

SMBJ15A Alternatives, Datasheet & Cross Reference | BOURNS

The SMBJ15A is a widely-sourced 600W, 15V unidirectional TVS diode in a standard SMB package, used for transient voltage protection. Several manufacturers offer pin-compatible alternatives, providing flexibility in sourcing.

AI replacement insight

Electrical risklow

Key parameters match, but minor electrical differences may exist. Datasheet comparison is advised.

Package risklow

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

Can it be replaced directly?

Yes, the SMBJ15A from other major manufacturers is typically a direct, pin-compatible replacement.

Best replacement path

Use the SMBJ15A from a different Tier-1 manufacturer like Littelfuse or STMicroelectronics.

Main risk

Minor parametric differences (e.g., clamping voltage, leakage current) may exist between manufacturers.

Recommended alternatives

Cross-vendor alternative from manufacturers like Littelfuse or STMicro with matching key electricals and package.

View details

Alternative comparison matrix

Feature / factor	SMBJ15A	SMBJ15A	SMBJ15A-13-F	Compatibility / risk
Polarity Or Type	Unidirectional	Unidirectional	Unidirectional	Unidirectional — Polarity matches target.; SMBJ15A-13-F: Polarity matches target.
Package	DO-214AA (SMB)	DO-214AA (SMB)	DO-214AA-2 (SMB)	DO-214AA (SMB) / DO-214AA-2 (SMB) — Package matches target.; SMBJ15A-13-F: Package is compatible.
Voltage	15.0V	15.0V	15.0V	15.0V — Standoff voltage matches.; SMBJ15A-13-F: Standoff voltage matches.
Power	600.0W	600.0W	-	600.0W — Power rating matches.
Current	24.59A	24.59A	-	24.59A — Peak pulse current matches.
Pin Count	2	-	0	0 — Pin count data missing, requires datasheet check.

Application & sourcing insights

Questions & answers

The best alternatives for the SMBJ15A are parts with the same MPN from other major manufacturers like Littelfuse, STMicroelectronics, or Vishay, as they offer the same key electrical performance and package.