ProjectsPricingInsights

Best Alternatives to NUP2105LT1G

Package: TO-236-3, SC-59, SOT-23-3onsemiTVS - DiodesPackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Type: ZenerVoltage - Reverse Standoff (Typ): 24V (Min)Voltage - Breakdown (Min): 26.2VVoltage - Clamping (Max) @ Ipp: 44V

NUP2105LT1G is a popular AEC-Q101 qualified dual bidirectional TVS diode from onsemi, designed to protect high-speed CAN bus lines in a SOT-23 package. Finding a suitable replacement requires matching its voltage, power, and current ratings.

AI replacement insight

Electrical riskhigh

Many alternatives have lower current/power ratings.

Package risklow

SOT-23 is a very common package.

Sourcing riskmedium

Avoid less-established vendors without thorough validation.

Can it be replaced directly?

Yes, SZNUP2105LT1G from onsemi is a direct, pin-compatible upgrade for NUP2105LT1G.

Best replacement path

SZNUP2105LT1G is the best replacement, offering the same performance with enhanced automotive qualifications from the same manufacturer.

Main risk

The main risk when substituting is choosing a part with a lower peak pulse current (Ipp) or peak power (Ppk) rating, which could compromise circuit protection under surge conditions.

Recommended alternatives

2
SZNUP2105LT1G package
SZNUP2105LT1G

onsemi

Needs validationlow risk

A pin-compatible upgrade from the same manufacturer with enhanced automotive qualifications and identical key electrical parameters.

View details

Alternative comparison matrix

Feature / factorNUP2105LT1GSZNUP2105LT1GPESD2IVN24-TRAlt 3Compatibility / risk
PackageSOT-23SOT-23-SOT23 (TO-236AB) — Package is compatible.
Voltage24V24V-24.0V — Reverse working voltage matches.
Power350W350W-350W — Peak power dissipation matches.
Current8A8.0A-3.5A — Significantly lower peak pulse current.
ApplicationAEC-Q101AEC-Q101 (SZ prefix)-AEC-Q101 (SZ prefix) — Candidate has stricter automotive site/control change requirements.
Clamping Voltage44V @ 8A-33V @ 3.5A33V @ 3.5A — Lower clamping voltage but at much lower current.

Application & sourcing insights

Questions & answers

The best alternative is SZNUP2105LT1G. It is an upgraded, pin-compatible version from the same manufacturer, onsemi, with identical electrical characteristics and stricter automotive qualifications.