
100nF 500V X7R MLCC candidate; not a proven Case A tantalum drop-in.
CA45-A-35V-0.1UF-K is a 0.1uF 35V Case A tantalum/polymer SMD capacitor. Listed MLCCs are functional candidates only and need FAE review.
Voltage is adequate, ESR/leakage differ.
Case A footprint is not verified.
Passive part; no firmware interface.
Candidates are active catalog matches.
No pin-compatible replacement is proven from the provided evidence.
Start with the 1206/3216 MLCC candidates, then verify footprint, ESR, leakage and bias behavior.
Tantalum/polymer to MLCC substitution can change ESR, leakage, capacitance under bias and stability.

100nF 500V X7R MLCC candidate; not a proven Case A tantalum drop-in.
| Feature / factor | CA45-A-35V-0.1UF-K | TCC1206X7R104K501HT | TCC1206M3L104J500FT | TCC0805X7R104K500DT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3216-16 Case A | 1206 | - | - | 0805 2012 — PCB change likely |
| Pinout | 2 terminals | 2 terminals | - | - | 2 terminals — land pattern differs |
| Voltage | 35V | 500V | - | - | 50V — meets rating |
| Temperature | -55 to 125C | -55 to 125C | - | - | -55 to 85C — upper temp lower |
| Application | tantalum/polymer | X7R MLCC | - | - | M3L MLCC — different capacitor type |
TCC1206X7R104K501HT is the strongest listed candidate by value, voltage and temperature, but it still needs footprint and MLCC behavior review.