SRV05-4HTG-D
Littelfuse
Needs validationmedium risk
Functional alternative in the same SOT23-6 package with 4 channels and higher peak current, but significantly lower capacitance.
Best Alternatives to TPSMS05T1G
TPSMS05T1G is a 4-line, 5V TVS diode array in a SOT23-6 package for ESD protection. When searching for a replacement, focus on candidates with the same package and 4-channel configuration, while carefully verifying pinout and parametric differences like capacitance and peak current ratings.
AI replacement insight
Electrical riskmedium
Capacitance and ESD ratings vary significantly across candidates, requiring circuit analysis.
Package risklow
All viable candidates share the SOT23-6 package, ensuring physical compatibility.
Firmware risklow
This is a passive component with no firmware interaction.
Can it be replaced directly?
Direct replacement for TPSMS05T1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
SRV05-4HTG-D by Littelfuse is a strong functional alternative, offering a similar package and channel count with improved peak current handling. However, its much lower capacitance requires engineering review.
Main risk
The primary risk is pinout incompatibility. Since the target and candidates are TVS arrays, incorrect pin mapping will lead to unprotected lines and circuit failure.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | TPSMS05T1G | SRV05-4HTG-D | SRV05-4HTG | PSRV05-4MR6T1G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-6 | SOT23-6 | SOT23-6 | SOT23-6 | SOT23-6 — Package matches, enabling form-fit evaluation.; SRV05-4HTG: Package matches.; PSRV05-4MR6T1G: Package matches. |
| Channels | 4 | 4 | 4 | 4 | 4 — Both protect four I/O lines.; SRV05-4HTG: Both protect four I/O lines.; PSRV05-4MR6T1G: Both protect four I/O lines. |
| Voltage | 5V | 5V | - | 5V | 5V — Operating voltage is compatible.; PSRV05-4MR6T1G: Operating voltage matches. |
| Capacitance | 60 pF | 1 pF | 2 pF | 0.3 pF | 1 pF / 2 pF / 0.3 pF — Significantly lower capacitance; suitable for high-speed but may alter circuit behavior.; SRV05-4HTG: Significantly lower capacitance requires review.; PSRV05-4MR6T1G: Extremely low capacitance requires circuit review. |
| Current | ~13.6A (est. from Ppp) | 10A | - | - | 10A — Higher peak pulse current rating offers more robust surge protection. |
| Esd Rating | ±30kV (Contact) | - | ±20kV (Contact) | ±20kV (Contact) | ±20kV (Contact) — Lower ESD contact immunity.; PSRV05-4MR6T1G: Lower ESD contact immunity. |
Application & sourcing insights
Questions & answers
Verified drop-in options for TPSMS05T1G 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.