Is there a pin-compatible replacement for PESD2CANFD24L-TR?

Several candidates share the SOT-23 package, but none are confirmed as a direct pin-for-pin replacement without full parametric verification. ESD2CAN24T2Q is the closest functional candidate, but its pinout and capacitance must be confirmed from its datasheet.

What risks should I check before replacing PESD2CANFD24L-TR?

Before replacing, check three main risks: 1) Higher clamping voltage, which offers less protection. 2) Higher capacitance, which can corrupt CAN-FD signals. 3) Lack of AEC-Q101 qualification, which is critical for automotive use.

PESD2CANFD24L-TR Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

Reviewing alternatives for the Nexperia PESD2CANFD24L-TR, an AEC-Q101 qualified TVS diode for CAN-FD bus protection. Key factors for a substitute are clamping voltage, capacitance, and automotive qualification.

AI replacement insight

Electrical riskhigh

Incorrect clamping voltage or capacitance can lead to device failure or communication errors.

Package risklow

SOT-23 is a standard package, so physical fit is likely, but pinout must always be confirmed.

Sourcing riskmedium

Ensure the chosen alternative has stable supply and is available through authorized channels.

Can it be replaced directly?

No confirmed direct drop-in replacement was found. ESD2CAN24T2Q from Yangjie is a strong candidate but requires a datasheet check for its capacitance value before it can be considered a direct replacement.

Best replacement path

Verify the capacitance of Yangjie's ESD2CAN24T2Q. It matches on voltage, AEC-Q101, and has a very similar clamping voltage, making it the most promising option.

Main risk

The primary risk when substituting is using a part with higher clamping voltage, which provides less protection to the CAN transceiver, or higher capacitance, which can degrade signal integrity on the CAN-FD bus.

Recommended alternatives

AEC-Q101 qualified with very similar clamping voltage. A strong candidate if capacitance is low.

View details

Alternative comparison matrix

Feature / factor	PESD2CANFD24L-TR	ESD2CAN24T2Q	NUP2105LT1G	Compatibility / risk
Package	SOT23 (TO-236AB)	SOT-23	SOT-23	SOT-23 — Package matches.; NUP2105LT1G: Package matches.
Voltage	24V	24V	24V	24V — Reverse standoff voltage matches.; NUP2105LT1G: Reverse standoff voltage matches.
Clamping Voltage	30V @ 1A	34V @ 1A	~40V	34V @ 1A / ~40V — Slightly higher clamping voltage, offers similar protection.; NUP2105LT1G: Higher clamping voltage offers less protection.
Qualification	AEC-Q101	AEC-Q101	-	AEC-Q101 — Automotive qualification matches.
Capacitance	10 pF	Missing	25 pF	Missing / 25 pF — Must verify from datasheet for CAN-FD compatibility.; NUP2105LT1G: Significantly higher capacitance may affect signal integrity.
Current	4A	-	4A	4A — Peak pulse current matches.

Application & sourcing insights

Questions & answers

The most promising alternative is ESD2CAN24T2Q by Yangjie Technology, as it is AEC-Q101 qualified with a very similar clamping voltage. However, you must verify its capacitance from the datasheet to ensure CAN-FD compatibility.