TPNUP4201MR6T1G
Leiditech
Needs validationlow risk
A likely pin-compatible alternative from the same manufacturer with slightly lower power and ESD ratings.
Best Alternatives to AZC199-04S
AZC199-04S is a 4-line, low-capacitance TVS array for protecting high-speed interfaces like USB and HDMI. When searching for a replacement, key parameters are the 4-channel configuration, SOT-23-6 package, 5V working voltage, and ultra-low capacitance (0.3pF).
AI replacement insight
Electrical riskmedium
Candidates may have lower power or ESD ratings.
Package risklow
SOT-23-6 is a standard package with good availability.
Can it be replaced directly?
Direct replacement for AZC199-04S should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
TPNUP4201MR6T1G is the most promising path, but requires accepting a minor downgrade in power and ESD ratings.
Main risk
The primary risk is reduced circuit robustness, as the best alternatives have slightly lower peak power and ESD voltage ratings.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | AZC199-04S | TPNUP4201MR6T1G | TPUSBLC6-4SC6 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23-6 | SOT23-6 | SOT23-6 | SOT23-6 — Package matches.; TPUSBLC6-4SC6: Package matches. | |
| Application | 4 | 4 | 4 | 4 — Number of protected lines matches.; TPUSBLC6-4SC6: Number of protected lines matches. | |
| Capacitance | 0.3pF | 0.3pF | 0.35pF | 0.3pF / 0.35pF — Capacitance matches exactly.; TPUSBLC6-4SC6: Capacitance is very similar, suitable for high-speed lines. | |
| Power | 300W | 250W | Missing | 250W / Missing — Slightly lower peak power rating.; TPUSBLC6-4SC6: Peak pulse power rating must be verified from datasheet. | |
| Esd | ±25kV Air | ±20kV Air | - | ±20kV Air — Slightly lower ESD protection rating. | |
| Voltage | 5.0V | - | 5.0V | 5.0V — Reverse working voltage matches. |
Application & sourcing insights
Questions & answers
Verified drop-in options for AZC199-04S 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.