Is there a pin-compatible replacement for ESDCAN02-2BWY?

Yes, other parts in ST's ESDCANxx-2BWY series, such as ESDCAN06-2BWY, use the same SOT323-3L package and are expected to be pin-compatible. However, their electrical parameters differ and must be verified for your application.

What risks should I check before replacing ESDCAN02-2BWY?

The main risk is electrical mismatch. You must verify the candidate's breakdown voltage (VBR) and clamping voltage (VCL) to ensure they provide adequate protection for your CAN transceiver. Also confirm AEC-Q101 qualification is present if used in an automotive design.

ESDCAN02-2BWY Alternatives, Datasheet & Cross Reference | STMicroelectronics

ESDCAN02-2BWY is an automotive-grade, dual-line bidirectional TVS diode from STMicroelectronics for CAN bus protection. Finding a substitute requires matching its 28.5V breakdown voltage, SOT323-3L package, and AEC-Q101 qualification.

AI replacement insight

Electrical riskhigh

Candidate breakdown voltages are >30% higher than the target.

Package risklow

Candidates share the same SOT323-3L package.

Can it be replaced directly?

No direct, verified drop-in replacement is available. All candidates found are in the same product family but have different breakdown voltages, requiring engineering review.

Best replacement path

Reviewing other members of the STMicroelectronics ESDCANxx-2BWY family for a closer voltage match or considering alternatives from other vendors specializing in automotive TVS diodes.

Main risk

Using a part with a higher breakdown voltage may leave the CAN bus transceiver unprotected against overvoltage events that the original part would have clamped.

Recommended alternatives

A functional alternate in the same SOT323-3L package, but with a higher breakdown voltage that requires circuit compatibility verification.

View details

Alternative comparison matrix

Feature / factor	ESDCAN02-2BWY	ESDCAN06-2BWY	ESDCAN05-2BWY	Compatibility / risk
Package	SOT323-3L	SOT323-3L	SOT323-3L	SOT323-3L — Package matches, ensuring form and fit compatibility.; ESDCAN05-2BWY: Package matches, ensuring form and fit compatibility.
Voltage	28.5 V	38 V	39 V	38 V / 39 V — Higher breakdown voltage may not protect the circuit as intended.; ESDCAN05-2BWY: Significantly higher breakdown voltage poses a protection risk.
Power	170 W	170 W	170 W	170 W — Peak pulse power rating is identical.; ESDCAN05-2BWY: Peak pulse power rating is identical.
Application	AEC-Q101	AEC-Q101	AEC-Q101	AEC-Q101 — Both parts are automotive qualified.; ESDCAN05-2BWY: Both parts are automotive qualified.

Application & sourcing insights

Questions & answers

No direct drop-in replacement was identified. Functional alternates like ESDCAN06-2BWY exist in the same family and package, but have a different breakdown voltage (38V vs 28.5V) that requires careful engineering review.