Is there a pin-compatible replacement for NUP4202W1T2G-N?

Yes, onsemi's NUP4202W1T2G and Würth Elektronik's 82400274 are available in the same SOT363 package and are expected to be pin-compatible as they are both 4-channel TVS arrays. However, you should always verify the pinout in the datasheet before implementation.

What risks should I check before replacing NUP4202W1T2G-N?

Before replacing NUP4202W1T2G-N, you must check two key parameters. With NUP4202W1T2G, verify that its higher capacitance (1.5pF) does not degrade your high-speed signal. With 82400274, confirm that its lower ESD rating (e.g., ±8kV contact) meets your system's reliability requirements.

NUP4202W1T2G-N Alternatives, Datasheet & Cross Reference | Leiditech

NUP4202W1T2G-N is a 4-line, 5V low-capacitance TVS diode array in a SOT363 package for high-speed data line protection. Finding a suitable replacement requires matching the package, voltage, and especially the ultra-low capacitance to ensure signal integrity and system protection.

AI replacement insight

Electrical riskmedium

Candidates have different capacitance or ESD ratings that must be verified against application requirements.

Package risklow

All strong candidates share the same SOT363 package, suggesting good physical compatibility.

Can it be replaced directly?

No drop-in replacement is confirmed. However, onsemi's NUP4202W1T2G and Würth's 82400274 are strong functional alternatives that require engineering review of key parameters.

Best replacement path

For applications prioritizing low capacitance, Würth's 82400274 is a closer match. For higher surge capability, onsemi's NUP4202W1T2G is superior if its higher capacitance is acceptable.

Main risk

The primary risk is a mismatch in a critical secondary parameter: either capacitance or ESD protection level, which could affect signal integrity or system robustness.

Recommended alternatives

A functional alternative from onsemi in the same SOT363 package with a higher power rating but increased capacitance.

View details

Alternative comparison matrix

Feature / factor	NUP4202W1T2G-N	NUP4202W1T2G	82400274	Compatibility / risk
Package	SOT363	SC-88 (SOT-363)	SOT363	SC-88 (SOT-363) / SOT363 — Package matches, enabling form-fit compatibility.; 82400274: Package matches, enabling form-fit compatibility.
Pinout	6	6	6	6 — Pin count matches; pin functions are assumed compatible for this TVS array family but require verification.; 82400274: Pin count matches; pin functions are assumed compatible for this TVS array family but require verification.
Voltage	5.0V	5.0V	5V	5.0V / 5V — Reverse standoff voltage matches.; 82400274: Reverse standoff voltage matches.
Power	60W	500W	-	500W — Significantly higher peak power rating provides more robust protection.
Capacitance	0.25pF	1.5pF	0.3pF	1.5pF / 0.3pF — Higher capacitance may impact signal integrity on high-speed lines.; 82400274: Capacitance is an excellent match, suitable for high-speed lines.
Esd Rating	±15kV Contact	-	±8kV Contact	±8kV Contact — Lower ESD contact protection rating.

Application & sourcing insights

Questions & answers

The best alternative depends on your design priority. For the closest capacitance match, consider Würth Elektronik's 82400274. For higher power handling, onsemi's NUP4202W1T2G is a strong choice, but you must verify if its higher capacitance is acceptable.