NUP2105LT1G
Catalyst Semiconductor Inc.
Needs validationmedium risk
A common bidirectional TVS with similar specs, but check specific vendor datasheet and pinout.
Best Alternatives to PESD24VL2BT
PESD24VL2BT is a 24V TVS diode in a SOT-23 package for CAN bus ESD protection. Several functional alternatives with matching packages and voltage ratings are available, but require datasheet verification for pinout and capacitance before substitution.
AI replacement insight
Package riskhigh
While the package is SOT-23, the pinout (GND, I/O1, I/O2) must be identical. This is the most critical check.
Electrical risklow
Most candidates have matching voltage and stronger current ratings. Clamping voltage and capacitance must be checked for signal integrity.
Sourcing risklow
Several alternatives from major manufacturers are available, suggesting good supply chain options.
Can it be replaced directly?
Direct replacement for PESD24VL2BT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
PESD2CANFD24L-TR from Nexperia is the strongest candidate due to its close parametric match, AEC-Q101 qualification, and reputable manufacturer.
Main risk
The primary risk is a pinout mismatch. SOT-23 packages have multiple common pin configurations for TVS diodes.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | PESD24VL2BT | NUP2105LT1G | PESD2CANFD24L-TR | PESD2CANFD24V-K | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | SOT23 (TO-236AB) | SOT-23 | SOT-23 / SOT23 (TO-236AB) — Package matches.; PESD2CANFD24L-TR: Package matches.; PESD2CANFD24V-K: Package matches.; PSOT24C-LF-T7: Package matches. |
| Pinout | 3 | 3 | 3 | 3 | 3 — Pin count matches, but pin functions require datasheet verification.; PESD2CANFD24L-TR: Pin count matches, but pin functions require datasheet verification.; PESD2CANFD24V-K: Pin count matches, but pin functions require datasheet verification.; PSOT24C-LF-T7: Pin count matches, but pin functions require datasheet verification. |
| Voltage | 24V | 24V | 24V | 24V | 24V — Reverse standoff voltage matches.; PESD2CANFD24L-TR: Reverse standoff voltage matches.; PESD2CANFD24V-K: Reverse standoff voltage matches.; PSOT24C-LF-T7: Reverse standoff voltage matches. |
| Current | 3.5A | 4.0A | 4.0A | 6.0A | 4.0A / 6.0A / 12.0A — Slightly higher peak pulse current rating.; PESD2CANFD24L-TR: Slightly higher peak pulse current rating.; PESD2CANFD24V-K: Higher peak pulse current rating.; PSOT24C-LF-T7: Higher peak pulse current rating provides more robustness. |
| Polarity Or Type | Not specified | Bi-directional | Bidirectional | Bidirectional | Bi-directional / Bidirectional — Candidate is bidirectional; target is assumed bidirectional for CAN bus.; PESD2CANFD24L-TR: Candidate is bidirectional; target is assumed bidirectional for CAN bus.; PESD2CANFD24V-K: Candidate is bidirectional; target is assumed bidirectional for CAN bus.; PSOT24C-LF-T7: Candidate is bidirectional; target is assumed bidirectional for CAN bus. |
Application & sourcing insights
Questions & answers
Verified drop-in options for PESD24VL2BT 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.