Is there a pin-compatible replacement for SM8S33CA?

Yes, SM8S33CA from other vendors like Leiditech is a pin-compatible replacement in the same DO-218AB package. Always verify the specific vendor's datasheet before substitution.

What risks should I check before replacing SM8S33CA?

Key risks include mismatched clamping voltage, lower peak power/current ratings, and incorrect polarity. Ensure the replacement is bidirectional and meets or exceeds the 6600W power and 124A current ratings.

SM8S33CA Alternatives, Datasheet & Cross Reference | Microdiode Semiconductor (Shenzhen) Co., Ltd.

SM8S33CA is a popular 6600W bidirectional TVS diode in a DO-218AB package, used for automotive and industrial surge protection. Several manufacturers offer compatible parts.

AI replacement insight

Electrical risklow

When using the same MPN from another vendor, electrical risks are minimal but datasheet verification is still advised.

Package risklow

The DO-218AB package is standardized, minimizing physical compatibility issues.

Sourcing riskmedium

Availability may vary between manufacturers; check distributor stock for the chosen vendor.

Can it be replaced directly?

Yes, SM8S33CA from other qualified manufacturers is a direct, pin-compatible replacement.

Best replacement path

Use SM8S33CA from an alternate manufacturer like Leiditech or SMC Diode Solutions.

Main risk

The main risk is substituting with a part that has a lower peak current rating or incorrect polarity (unidirectional).

Recommended alternatives

Parametrically similar with same package and power, but has lower peak current and higher working voltage.

View details

Alternative comparison matrix

Feature / factor	SM8S33CA	SM8S33CA	SM8S36CA	Compatibility / risk
Package	DO-218AB	DO-218AB	DO-218AB	DO-218AB — Package matches.; SM8S36CA: Package matches.
Polarity Or Type	Bidirectional	Bidirectional	Bidirectional	Bidirectional — Polarity matches.; SM8S36CA: Polarity matches.
Voltage	33.0V	33.0V	36.0V	33.0V / 36.0V — Working voltage matches.; SM8S36CA: Higher working voltage may offer more headroom but should be verified.
Power	6600.0W	6600.0W	6600.0W	6600.0W — Power rating matches.; SM8S36CA: Power rating matches.
Current	124.0A	124.0A	114.0A	124.0A / 114.0A — Peak pulse current matches.; SM8S36CA: Lower peak pulse current rating is a downgrade.

Application & sourcing insights

Questions & answers

Parts with the same MPN, SM8S33CA, from manufacturers like Leiditech or SMC Diode Solutions are strong candidates, offering matching electrical and physical parameters.