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KYOCERA AVX TAJB225K025SNJ — Specialty Capacitors

TAJB225K025SNJ KYOCERA AVX Molded Tantalum Capacitor 2.2µF

MPNTAJB225K025SNJ
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KYOCERA AVX TAJ series molded tantalum capacitor, 2.2 µF, 25 V, ±10% tolerance, 4.5 Ohm ESR, -55°C to 125°C, size code B, surface-mount 1411 (3528 Metric) package.

$0.4600Ref. price · indicative, final on quote
KYOCERA AVX TAJB225K025SNJ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TAJB225K025SNJ specifications
ParameterValue
TypeMolded
SeriesTAJ
MountingSurface Mount
ESR4.5Ohm
Voltage - rated25 V
Operating temperature-55°C~125°C
Size (Dimension)0.138\" L x 0.110\" W (3.50mm x 2.80mm)
Height - seated0.083\" (2.10mm)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesGeneral Purpose
Tolerance±10%
Capacitance2.2 µF
Case1411 (3528 Metric), 1210
Manufacturer size codeB

Product details

2.2 µF, 25 V molded tantalum — TAJ series

The TAJB225K025SNJ is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated at 2.2 µF and 25 V with ±10% tolerance. The molded case provides mechanical stability and moisture resistance for surface-mount assembly. The 4.5 Ohm ESR (equivalent series resistance) is a key parameter for power-supply decoupling and filtering: higher ESR limits ripple current handling and increases self-heating, so budget the ripple current against the ESR derating curve in the datasheet.

Surface-mount footprint and polarity

Packaged in the 1411 (3528 Metric) case, size code B, with dimensions 3.50 mm x 2.80 mm and a seated height of 2.10 mm max. The molded body is polarized — the anode (+) is marked on the top surface; reverse-voltage connection can damage the part. The ±10% tolerance is tight enough for most decoupling and timing circuits; for precision filters, confirm the capacitance drift over temperature and voltage bias.

Frequently asked questions

Can I use TAJB225K025SNJ for a 2.2 µF, 25 V application?

Yes — the capacitor is rated 2.2 µF at 25 V with ±10% tolerance. Derate voltage per tantalum best practice (typically 50% of rated voltage for reliable operation). The 4.5 Ohm ESR should be factored into ripple current and power dissipation calculations.

What is the footprint and polarity of TAJB225K025SNJ?

The footprint is the standard 1411 (3528 Metric) case, size code B, with 3.50 mm x 2.80 mm body dimensions. The capacitor is polarized: the anode (+) is marked on the top surface. Confirm the PCB pad layout matches the datasheet recommended land pattern.

Where can I download the TAJB225K025SNJ datasheet?

The datasheet is available from KYOCERA AVX or through our product page. It contains the full electrical characteristics, derating curves, and recommended land pattern for the B-size case.