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KYOCERA AVX TAJP225M020RNJ — Specialty Capacitors

TAJP225M020RNJ KYOCERA AVX TAJ Series 2.2 µF 20 V Molded

MPNTAJP225M020RNJ
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KYOCERA AVX TAJ series, molded tantalum, 2.2 µF ±20%, 20 V rated, 0805 case, 8.3 Ohm ESR, -55 to 125 °C

$0.3232Ref. price · indicative, final on quote
KYOCERA AVX TAJP225M020RNJ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TAJP225M020RNJ specifications
ParameterValue
TypeMolded
SeriesTAJ
MountingSurface Mount
ESR8.3Ohm
Voltage - rated20 V
Operating temperature-55°C ~ 125°C
Size (Dimension)0.081\" L x 0.053\" W (2.05mm x 1.35mm)
Height - seated0.059\" (1.50mm)
PackageTape & Reel (TR)
FeaturesGeneral Purpose
Tolerance±20%
Capacitance2.2 µF
Case0805 (2012 Metric)
Manufacturer size codeP

Product details

ESR and thermal budget for this 0805 tantalum

The TAJP225M020RNJ: The 8.3 Ohm ESR is the dominant loss term in this 2.2 µF tantalum; at 20 V rated, the ripple current that can be sustained before self-heating exceeds the 125 °C ceiling is set by I²R = Pmax, where Pmax is the package's power dissipation limit. For a 0805 case, that limit is roughly 0.1 W at 25 °C, derating to zero at 125 °C — so the ripple current budget is about 110 mA RMS at room temperature, dropping to near zero at the top end of the range.

The molded case (Type Molded) provides mechanical protection against vibration and moisture ingress better than a conformally-coated chip, though it is not hermetic.

Lifecycle and ordering posture

Frequently asked questions

What is the ESR of TAJP225M020RNJ and why does it matter?

The ESR is 8.3 Ohm. This value determines the capacitor's self-heating under ripple current and its filtering effectiveness at higher frequencies. For a 2.2 µF part in an 0805 case, an 8.3 Ohm ESR means the impedance is dominated by resistance above roughly 10 kHz, so the capacitor behaves more like a resistor than a capacitor at switching-regulator frequencies — plan for that in your output filter design.

Can TAJP225M020RNJ be used in high-frequency applications?

At frequencies above about 10 kHz, the 8.3 Ohm ESR dominates the impedance, so the capacitor's effectiveness as a bypass or filter element drops off. For high-frequency decoupling (above 1 MHz), a ceramic capacitor with lower ESR is a better choice. This tantalum is suited for bulk storage and low-frequency filtering on power rails where the ripple frequency is below a few kilohertz.