Is there a pin-compatible replacement for P6SMB36CA?

SMBJ33CA is a potential pin-compatible alternative in the same DO-214AA (SMB) package. However, it has a slightly lower peak pulse current (11.3A vs 12A) which must be verified for your application.

What risks should I check before replacing P6SMB36CA?

Key risks include package mismatch (e.g., SMC vs. SMB), polarity mismatch (unidirectional vs. bidirectional), and incorrect voltage ratings. Also, verify the peak pulse current and power ratings meet or exceed your circuit's requirements.

P6SMB36CA Alternatives, Datasheet & Cross Reference | BOURNS

Reviewing alternatives for the P6SMB36CA, a 600W bidirectional TVS diode in an SMB package. Key considerations for replacements are matching the 30.8V standoff voltage, bidirectional polarity, and DO-214AA package.

AI replacement insight

Electrical riskmedium

Key risk is the slightly lower peak current on the closest package match.

Package riskhigh

Some functional alternatives are in different packages (SMC) and are not drop-in.

Can it be replaced directly?

No exact drop-in replacement was found. SMBJ33CA is the closest candidate but is a parametric relaxation due to a lower peak current rating. Careful review is required.

Best replacement path

SMBJ33CA offers the most direct path but requires review of the slightly lower current rating.

Main risk

The main risk is accepting a part with a lower peak current rating (SMBJ33CA) or a different package requiring a board change (SMCJ33CA).

Recommended alternatives

A close parametric match in the same SMB package, but with a slightly lower peak current rating.

View details

Alternative comparison matrix

Feature / factor	P6SMB36CA	SMBJ33CA	SMCJ33CA	Compatibility / risk
Package	DO-214AA (SMB)	DO-214AA, SMB	DO-214AB (SMC)	DO-214AA, SMB / DO-214AB (SMC) — Same package family ensures footprint compatibility.; SMCJ33CA: Larger SMC package requires a different PCB footprint.
Polarity Or Type	Bidirectional	Bidirectional	Bidirectional	Bidirectional — Polarity matches the target's requirement.; SMCJ33CA: Polarity matches the target's requirement.
Voltage V	30.8V	33.0V	33.0V	33.0V — Slightly higher standoff voltage is safe.; SMCJ33CA: Standoff voltage is a close and safe match.
Power W	600.0W	600.0W	1500.0W	600.0W / 1500.0W — Peak power handling is identical.; SMCJ33CA: Significantly higher power handling.
Current A	12.0A	11.3A	28.2A	11.3A / 28.2A — Peak pulse current is slightly lower, requires review.; SMCJ33CA: Significantly higher peak current capability.

Application & sourcing insights

Questions & answers

SMBJ33CA is a close parametric alternative in the same package, but has a slightly lower peak current rating. For new designs, SMCJ33CA offers higher power handling but requires a larger SMC package footprint.