TAJB107K006RNJV is a molded tantalum capacitor from the TAJ series, rated 100 µF at 6.3 V with ±10% tolerance. This is the go-to value for 3.3 V or 5 V rail bulk decoupling where the supply voltage stays below the 6.3 V ceiling and the ripple current is moderate. The 1.7 Ohm ESR at 100 kHz means this cap will self-heat under AC ripple — it is not a low-ESR part for switching regulator outputs. Budget the ripple current derating if the application draws more than a few hundred mA RMS through the capacitor.
Rated 2000 hours at 125°C, the part survives high-temperature operation but the lifetime is finite. For an engine-bay ECU running at 105°C ambient, the capacitor sees accelerated aging — derate voltage and ripple to extend useful life beyond the datasheet endurance figure. In avionics or downhole tools the low-temperature capacitance shift matters — tantalum caps lose capacitance below -55°C, so confirm the minimum capacitance at cold start if the circuit relies on tight tolerance.
Active — no LTB pressure
Availability is confirmed at RFQ against the BOM quantity. Supplied on Tape & Reel or Cut Tape, surface-mount, B case size (1411 / 3528 Metric).