KYOCERA AVX TAJ series, molded tantalum capacitor, 68 µF, 6.3 V, ±10% tolerance, 900 mOhm ESR, -55°C to 125°C, size code B.
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 900mOhm @ 100kHz |
| Voltage - rated | 6.3 V |
| Operating temperature | -55°C~125°C |
| Size (Dimension) | 0.138\" L x 0.110\" W (3.50mm x 2.80mm) |
| Height - seated | 0.083\" (2.10mm) |
| Package | Tape & Reel (TR) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 68 µF |
| Case | 1411 (3528 Metric) |
| Lifetime | 2000 Hrs @ 125°C |
| Manufacturer size code | B |
The TAJB686K006SNJ is a molded tantalum capacitor from the TAJ series, rated at 68 µF and 6.3 V with ±10% tolerance.
Derate the voltage above 85°C per the TAJ series guidelines — at 125°C the working voltage drops to 2/3 of rated.
Any TAJ series capacitor in size code B (EIA 3528-21) with the same voltage and capacitance rating is a direct footprint match. The ESR and tolerance may differ — check the specific part number. No single pin-compatible equivalent is listed by the manufacturer.
Rated 2000 hours at 125°C. At lower temperatures the lifetime extends significantly — the TAJ series uses the standard Arrhenius acceleration model. For a 105°C ambient, expect roughly 8,000 hours.