The TAJC686M006RNJ: This is a 68 µF molded tantalum capacitor rated at 6.3 V DC, ±20% tolerance — a standard bulk-decoupling value for 3.3 V and 1.8 V power rails where the derating margin (typically 80% of rated voltage) keeps the cap inside its safe operating area. The 1.5 ohm ESR sets the ripple-current ceiling; for a 100 kHz buck converter output, the self-heating limits the AC ripple to roughly 500 mA RMS before the cap exceeds its temperature rise budget.

TAJC686M006RNJ KYOCERA AVX Molded Tantalum Capacitor 68 µF
MPNTAJC686M006RNJ
Active
KYOCERA AVX TAJ series molded tantalum capacitor, 68 µF, 6.3 V rated, ±20% tolerance, 1.5 ohm ESR, -55°C to 125°C, surface-mount 2312 (6032 Metric) package, active production.
$0.9300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 1.5Ohm |
| Voltage - rated | 6.3 V |
| Operating temperature | -55°C ~ 125°C |
| Size (Dimension) | 0.236\" L x 0.126\" W (6.00mm x 3.20mm) |
| Height - seated | 0.110\" (2.80mm) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±20% |
| Capacitance | 68 µF |
| Case | 2312 (6032 Metric) |
| Manufacturer size code | C |
Product details
Frequently asked questions
What is the closest alternative to TAJC686M006RNJ in the TAJ series?
Within the KYOCERA AVX TAJ series, the closest parametric match is another 68 µF, 6.3 V, size C molded tantalum with the same ±20% tolerance and 1.5 ohm ESR — the difference is typically the packaging option (tape vs bulk) or RoHS compliance variant. Confirm the exact order code suffix against your BOM.