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KYOCERA AVX TAJS226M004RNJ — Specialty Capacitors

TAJS226M004RNJ – KYOCERA AVX 22 µF 4 V Molded Tantalum

MPNTAJS226M004RNJ
Active

KYOCERA AVX TAJ series, molded tantalum capacitor, 22 µF, 4 V, ±20%, 1206 (3216 Metric) case, 3.5 Ohm ESR, -55°C to 125°C

KYOCERA AVX TAJS226M004RNJ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TAJS226M004RNJ specifications
ParameterValue
TypeMolded
SeriesTAJ
MountingSurface Mount
ESR3.5Ohm
Voltage - rated4 V
Operating temperature-55°C ~ 125°C
Size (Dimension)0.126\" L x 0.063\" W (3.20mm x 1.60mm)
Height - seated0.047\" (1.20mm)
PackageTape & Reel (TR)
FeaturesGeneral Purpose
Tolerance±20%
Capacitance22 µF
Case1206 (3216 Metric)
Manufacturer size codeS

Product details

The TAJS226M004RNJ: This is a 22 µF molded tantalum capacitor rated at 4 V with a 3.5 Ohm ESR. The 3.5 Ohm ESR limits ripple current to roughly 200 mA RMS at 100 kHz, which is fine for a local bulk cap after a low-noise LDO but too high for a switching regulator output filter.

In an engine-bay ECU or an avionics power supply, the capacitance stays within spec across the whole range — no voltage derating required at 125°C, though the ESR will rise with temperature.

Active production — no EOL on the horizon

No last-time-buy notice, no successor.

Frequently asked questions

Can TAJS226M004RNJ be used as a replacement for a 22 µF 4 V tantalum capacitor in a 1206 package?

Yes. This part is a 22 µF, 4 V, ±20% tolerance molded tantalum in the standard 1206 (3216 Metric) case. It is a direct drop-in replacement for any 22 µF 4 V tantalum in the same package, provided the circuit can tolerate the 3.5 Ohm ESR and the ±20% tolerance.