293D105X9025A2TE3
Vishay Sprague
Needs validationlow risk
This Vishay part is a strong upgrade with a higher 25V rating in the same package.
Best Alternatives to T491A105K016AT
The KEMET T491A105K016AT is a popular 1uF 16V tantalum capacitor in a 3216 (Case A) package. Many suitable alternatives exist, including pin-compatible upgrades with higher voltage ratings and cross-vendor options with similar performance.
AI replacement insight
Electrical risklow
Capacitance and tolerance are standard. Voltage can often be upgraded, but ESR must be verified for the application.
Package riskmedium
While 3216/1206/Case A is standard, some candidates have different package sizes (e.g., Case B) that require a new PCB layout.
Sourcing risklow
This is a common capacitor value with multiple manufacturers, providing a good supply chain depth.
Can it be replaced directly?
Yes, several pin-compatible replacements exist. The closest direct match is CA45-A-16V-1uF-K, while parts like 293D105X9035A2TE3 are pin-compatible upgrades.
Best replacement path
The best replacements are upgrade paths like Vishay's 293D105X9035A2TE3, which offer higher voltage ratings in the same package.
Main risk
The main risks when substituting are mismatched ESR (Equivalent Series Resistance) and incorrect package size. Always verify the footprint.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | T491A105K016AT | 293D105X9025A2TE3 | 293D105X9035A2TE3 | CA45-A-16V-1uF-K | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 16V | 25V | 35V | 16V | 25V / 35V / 16V — Higher voltage offers better derating margin.; 293D105X9035A2TE3: Higher voltage offers better derating margin.; CA45-A-16V-1uF-K: matched; CA45-A-35V-1uF-K: Higher voltage rating. |
| Package | 3216-18 | 3216-18 (1206) | 3216-18 (1206 Metric) | 3216-16 (Case A) | 3216-18 (1206) / 3216-18 (1206 Metric) / 3216-16 (Case A) — Same EIA case code A.; 293D105X9035A2TE3: Same EIA case code A.; CA45-A-16V-1uF-K: Package name differs but dimensions match Case A.; CA45-A-35V-1uF-K: Package case code matches. |
| Esr | 10 Ω | 7.6 Ω | 7.5 Ω | 10.0 Ω | 7.6 Ω / 7.5 Ω / 10.0 Ω / 16 Ω — Lower ESR is generally beneficial.; 293D105X9035A2TE3: Lower ESR is generally beneficial.; CA45-A-16V-1uF-K: matched; CA45-A-35V-1uF-K: Higher ESR can impact performance in some circuits. |
| Capacitance | 1µF ±10% | - | 1µF ±10% | - | 1µF ±10% — matched |
| Manufacturer | KEMET | - | - | XY (Zhenhua Xinyun) | XY (Zhenhua Xinyun) — Cross-vendor alternative. |
Application & sourcing insights
Questions & answers
The best alternatives for T491A105K016AT are upgrade-path parts like Vishay's 293D105X9035A2TE3 or 293D105X9025A2TE3. They offer higher voltage ratings (35V/25V vs 16V) and lower ESR in the same 3216 package, providing better performance and reliability.