
A direct replacement with matching package and electricals, offering a superior 10% tolerance.
Find the best replacement for the AVX TAJB686M010RNJ, a 68µF 10V tantalum capacitor. Our analysis identifies pin-compatible upgrades and functional alternatives, highlighting key differences in package and electrical parameters to ensure a successful substitution.
The best alternative is an electrical upgrade. Other candidates have different capacitance or voltage that must be verified.
Many functional alternatives are in larger packages (C-Case, D-Case) and are not drop-in replacements.
Yes, TAJB686K010RNJ is a direct, pin-compatible replacement for TAJB686M010RNJ. It is an upgrade, featuring a tighter 10% tolerance compared to the original's 20%.
TAJB686K010RNJ is the best replacement, offering a direct pin-compatible upgrade with tighter tolerance.
The primary risk when considering alternatives is package mismatch. Several functional alternatives exist but require a PCB redesign.

A direct replacement with matching package and electricals, offering a superior 10% tolerance.
| Feature / factor | TAJB686M010RNJ | TAJB686K010RNJ | TPSB476K010R0350 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3528 (1210) | 1210 (3528 Metric) | 3528 (1210) | 1210 (3528 Metric) / 3528 (1210) — Package codes are equivalent.; TPSB476K010R0350: matched | |
| Capacitance | 68 µF | 68 µF | 47 µF | 68 µF / 47 µF — matched; TPSB476K010R0350: Significantly lower capacitance. | |
| Voltage | 10 V | 10 V | 10 V | 10 V — matched; TPSB476K010R0350: matched | |
| Tolerance | 20% | 10% | - | 10% — Tighter tolerance is a safe upgrade. | |
| Esr | 1.4 Ohms | 1.4 Ohms | 350 mOhms | 1.4 Ohms / 350 mOhms — matched; TPSB476K010R0350: Lower ESR is an improvement. |
The best alternative to TAJB686M010RNJ is TAJB686K010RNJ. It is a pin-compatible replacement from the same manufacturer and series, with the only difference being a superior (tighter) 10% tolerance.