What risks should I check before replacing SM24CANA-02HTG?

The main risk is pinout incompatibility. You must verify the pin configuration from the datasheet. Also, check that the replacement's clamping voltage and capacitance are within the limits required by your circuit, especially for high-speed data lines like CAN.

SM24CANA-02HTG Alternatives, Datasheet & Cross Reference | TECH PUBLIC

SM24CANA-02HTG is a 24V bi-directional TVS diode in a SOT-23 package for data line protection. Several alternatives are available, many offering higher power ratings for enhanced protection in the same physical footprint.

AI replacement insight

Electrical risklow

Candidates have matching voltage and higher power ratings. Check clamping voltage and capacitance for your application.

Package riskmedium

While the SOT-23 package matches, the internal pinout must be verified to ensure correct line protection.

Sourcing risklow

Multiple vendors offer suitable alternatives, improving supply chain resilience.

Can it be replaced directly?

SM24CANB-02HTG is a likely upgrade, providing over 3x the power handling in the same SOT-23 package. However, you must verify the pinout from the datasheet before use.

Best replacement path

SM24CANB-02HTG is the most promising alternative, offering a significant power upgrade (500W vs 150W) and a similar part number suggesting a direct family upgrade.

Main risk

Pinout mismatch is the primary risk, as different TVS arrays can have different pin configurations within the same SOT-23 package.

Recommended alternatives

A likely upgrade with 3.3x higher power rating in the same package; pinout verification is recommended.

View details

Alternative comparison matrix

Feature / factor	SM24CANA-02HTG	SM24CANB-02HTG	PESD2CAN-ES	TPNUP2105LT1G	Compatibility / risk
Package	SOT-23	SOT-23	SOT-23	SOT-23	SOT-23 — Form factor matches.; PESD2CAN-ES: Form factor matches.; TPNUP2105LT1G: Form factor matches.
Voltage	24V	24V	24V	24V	24V — Reverse standoff voltage matches.; PESD2CAN-ES: Reverse standoff voltage matches.; TPNUP2105LT1G: Reverse standoff voltage matches.
Power	150W	500W	600W	300W	500W / 600W / 300W — Candidate offers significantly higher peak pulse power.; PESD2CAN-ES: Candidate offers 4x higher peak pulse power.; TPNUP2105LT1G: Candidate offers double the peak pulse power.
Polarity Or Type	Bi-directional	Bi-directional	Bi-directional	Bi-directional	Bi-directional — Both are bi-directional TVS arrays.; PESD2CAN-ES: Both are bi-directional TVS arrays.; TPNUP2105LT1G: Both are bi-directional TVS arrays.

Application & sourcing insights

Questions & answers

Verified drop-in options for SM24CANA-02HTG are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.