Is there a pin-compatible replacement for TPD4E1B06DCKR-TP?

While parts like NUP4202W1T2G-MS share the SOT-363 package and a similar pinout, they are not direct drop-in replacements. They have different electrical protection characteristics that must be verified.

What risks should I check before replacing TPD4E1B06DCKR-TP?

The main risks are electrical. Check the clamping voltage, ESD rating, and operating voltage. Most alternatives have higher clamping voltage (less protection) and lower ESD ratings. Also, verify the replacement's capacitance is low enough for your data line speed.

TPD4E1B06DCKR-TP Alternatives, Datasheet & Cross Reference | TECH PUBLIC

TPD4E1B06DCKR-TP is a 4-channel bi-directional TVS diode array with ultra-low 0.6pF capacitance for protecting high-speed data lines. Finding a replacement requires matching the package, channel count, and especially the low capacitance and bi-directional configuration.

AI replacement insight

Electrical riskhigh

Higher clamping voltage and lower ESD ratings in candidates reduce protection.

Package risklow

SOT-363 package and 4-line pinout are common.

Can it be replaced directly?

No direct drop-in replacement was found. All viable candidates are parametric alternatives that require careful review of protection levels.

Best replacement path

NUP4202W1T2G-MS is the most promising path due to its very low capacitance, but requires accepting weaker clamping and ESD performance.

Main risk

The primary risk is reduced system robustness due to weaker protection characteristics, specifically higher clamping voltage and lower ESD ratings in all found alternatives.

Recommended alternatives

A 4-channel ultra-low capacitance TVS array in the same SOT-363 package, but offers weaker protection levels.

View details

Alternative comparison matrix

Feature / factor	TPD4E1B06DCKR-TP	NUP4202W1T2G-MS	LC0504F	Compatibility / risk
Package	SOT-363	SOT-363	SOT-363	SOT-363 — Package matches.; LC0504F: Package matches.
Capacitance	0.6 pF	0.3 pF	0.8 pF	0.3 pF / 0.8 pF — Lower capacitance is an improvement for high-speed signals.; LC0504F: Very close match, suitable for high-speed lines.
Clamping Voltage	9 V	12 V	15 V	12 V / 15 V — Higher clamping voltage offers less protection.; LC0504F: Significantly higher Vc offers less protection.
Esd Rating	±15kV contact	±12kV contact	±8kV contact	±12kV contact / ±8kV contact — Lower ESD immunity.; LC0504F: Lower ESD immunity.
Voltage	5.5 V	5 V	5 V	5 V — Lower operating voltage.; LC0504F: Lower operating voltage.

Application & sourcing insights

Questions & answers

NUP4202W1T2G-MS is a potential alternative with even lower capacitance, but it has a higher clamping voltage and lower ESD rating, which reduces overall protection. Careful engineering review is required.