Is there a pin-compatible replacement for SMAJ36CA-13-F?

Yes, parts like SMAJ33CA-13-F and P6SMAJ33CA share the same SMA package and pinout. However, they are not electrically identical due to different standoff voltages, so they are not drop-in replacements without engineering review.

What risks should I check before replacing SMAJ36CA-13-F?

The main risk is the lower reverse standoff voltage (e.g., 33V vs. the original 36V). Ensure your circuit's maximum normal operating voltage is safely below the candidate's standoff voltage to prevent unintended clamping.

SMAJ36CA-13-F Alternatives, Datasheet & Cross Reference | Diodes Incorporated

SMAJ36CA-13-F is a 400W, 36V bidirectional TVS diode in an SMA package. While no direct drop-in replacements were found, several alternatives with the same form-fit exist but require careful review of their lower standoff voltage.

AI replacement insight

Electrical riskmedium

Lower standoff voltage may cause unintended clamping.

Package risklow

Candidates share the same industry-standard SMA package.

Can it be replaced directly?

No direct, drop-in replacement for SMAJ36CA-13-F was identified. All viable candidates have a lower standoff voltage requiring engineering review.

Best replacement path

Use a parametric alternative like P6SMAJ33CA or SMAJ33CA-13-F, after verifying the lower 33V standoff voltage is acceptable for the application.

Main risk

The primary risk is unintended circuit operation if the system's operating voltage exceeds the substitute's lower 33V standoff voltage.

Recommended alternatives

Form-fit compatible with same power rating, but lower standoff voltage requires verification.

View details

Alternative comparison matrix

Feature / factor	SMAJ36CA-13-F	SMAJ33CA-13-F	P6SMAJ33CA	Compatibility / risk
Package	SMA (DO-214AC)	SMA (DO-214AC)	SMA (DO-214AC)	SMA (DO-214AC) — Same package and pin count.; P6SMAJ33CA: Same package and pin count.
Polarity	Bidirectional	Bidirectional	Bidirectional	Bidirectional — Polarity matches.; P6SMAJ33CA: Polarity matches.
Voltage	36.0V	33.0V	33.0V	33.0V — Lower standoff voltage. Requires verification.; P6SMAJ33CA: Lower standoff voltage. Requires verification.
Power	400.0W	400.0W	600.0W	400.0W / 600.0W — Peak pulse power matches.; P6SMAJ33CA: Higher power rating provides more robustness.
Current	6.9A	7.5A	11.3A	7.5A / 11.3A — Higher peak pulse current is acceptable.; P6SMAJ33CA: Higher peak pulse current is an upgrade.

Application & sourcing insights

Questions & answers

P6SMAJ33CA offers higher power handling (600W) and SMAJ33CA-13-F has the same power rating (400W). Both are form-fit compatible but have a lower 33V standoff voltage that must be verified for your application.