Needs validationhigh risk
Functionally similar with better voltage/ESR, but in a larger C-Case package.
Best Alternatives to TAJB686K010RNJ
TAJB686K010RNJ is a 68µF 10V tantalum capacitor in a 1210 package. While alternatives exist, they may differ in tolerance, capacitance, or package size, requiring careful review before substitution.
AI replacement insight
Electrical riskmedium
Tolerance or capacitance value may differ, requiring validation.
Package riskhigh
Some functional alternatives are in larger packages and require PCB redesign.
Can it be replaced directly?
Yes, TAJB686M010RNJ is a potential direct replacement in the same package, but you must verify if your application can tolerate its 20% capacitance tolerance versus the original's 10%.
Best replacement path
The closest option is TAJB686M010RNJ, which matches the package and key ratings but has a wider 20% tolerance. This is a low-risk parametric alternative.
Main risk
The primary risk is electrical parameter deviation, specifically capacitance tolerance or value. Some alternatives have different physical packages.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | TAJB686K010RNJ | TAJC686K016RNJ | TAJD686K016RNJ | TAJB686M010RNJ | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1210 (3528 Metric) | 6032 (C Case) | 7343 (D Case) | 3528 (1210) | 6032 (C Case) / 7343 (D Case) / 3528 (1210) — Larger package requires layout change.; TAJD686K016RNJ: Larger package requires layout change.; TAJB686M010RNJ: Same B Case / 1210 package.; TPSB476K010R0350: Same B Case / 1210 package. |
| Capacitance | 68 uF | 68 uF | 68 uF | 68 uF | 68 uF / 47 uF — matched; TAJD686K016RNJ: matched; TAJB686M010RNJ: matched; TPSB476K010R0350: Lower capacitance requires circuit validation. |
| Voltage | 10 V | 16 V | 16 V | 10 V | 16 V / 10 V — Higher voltage rating is generally safe.; TAJD686K016RNJ: Higher voltage rating is generally safe.; TAJB686M010RNJ: matched; TPSB476K010R0350: matched |
| Esr | 1.4 Ohms | 1.3 Ohms | 900 mOhms | 1.4 Ohms | 1.3 Ohms / 900 mOhms / 1.4 Ohms / 350 mOhms — Slightly lower ESR is an improvement.; TAJD686K016RNJ: Lower ESR is an improvement.; TAJB686M010RNJ: matched; TPSB476K010R0350: Significantly lower ESR is an improvement. |
| Tolerance | 10% | - | - | 20% | 20% — Wider tolerance may affect circuit performance. |
Application & sourcing insights
Questions & answers
The best alternative is likely TAJB686M010RNJ. It matches the package, capacitance, and voltage, but has a wider 20% tolerance that must be verified for your application.