The TAJT685K004RNJ: This is a molded tantalum capacitor from the TAJ series, rated 6.8 µF ±10% at 4 V with 6 Ohm ESR. The 6 Ohm ESR is the series resistance that limits ripple current and self-heating — in a 4 V rail decoupling application, it keeps the capacitor cool under moderate AC ripple, but for high-frequency bypass you'd want a lower-ESR ceramic alongside it.
TAJT685K004RNJ KYOCERA AVX Molded Tantalum Capacitor 6.8 µF
MPNTAJT685K004RNJ
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KYOCERA AVX TAJ series, Molded tantalum capacitor, 6.8 µF ±10%, 4 V rated, 6 Ohm ESR, -55 to 125 °C, surface-mount 1411 case
$0.2127Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 6Ohm |
| Voltage - rated | 4 V |
| Operating temperature | -55°C~125°C |
| Size (Dimension) | 0.138\" L x 0.110\" W (3.50mm x 2.80mm) |
| Height - seated | 0.047\" (1.20mm) |
| Package | Tape & Reel (TR) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 6.8 µF |
| Case | 1411 (3528 Metric), 1210 |
| Manufacturer size code | T |
Product details
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