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KYOCERA AVX TAJR105K020YNJ — Specialty Capacitors

TAJR105K020YNJ KYOCERA AVX 1 µF 20 V Tantalum Capacitor 0805

MPNTAJR105K020YNJ
Active

KYOCERA AVX TAJ series, molded tantalum capacitor, 1 µF ±10%, 20 V rated, 0805 (2012 metric) case, -55°C to 125°C, 20 Ohm ESR

$0.1418Ref. price · indicative, final on quote
KYOCERA AVX TAJR105K020YNJ datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TAJR105K020YNJ specifications
ParameterValue
TypeMolded
SeriesTAJ
MountingSurface Mount
ESR20Ohm
Voltage - rated20 V
Operating temperature-55°C~125°C
Size (Dimension)0.081\" L x 0.051\" W (2.05mm x 1.30mm)
Height - seated0.047\" (1.20mm)
PackageTape & Reel (TR)
FeaturesGeneral Purpose
Tolerance±10%
Capacitance1 µF
Case0805 (2012 Metric)
Manufacturer size codeR

Product details

1 µF, 20 V, 0805 — molded tantalum for tight boards

The 0805 case (2.05 mm × 1.30 mm footprint, 1.20 mm seated height) fits dense surface-mount layouts where board area is the constraint. The 20 Ohm ESR is the headline spec for a buyer evaluating this part for decoupling or filtering. For a 1 µF capacitor at 20 V, that ESR is typical for a small-case tantalum — it limits ripple current handling and high-frequency bypass effectiveness. If your circuit needs sub-ohm ESR at 1 µF, you are looking at a ceramic or polymer electrolytic, not this part.

Active status — no LTB pressure

For a BOM line that calls out this exact order code, supply continuity is not a concern — the part is in regular production and sourced through independent distribution per RFQ.

The molded construction provides mechanical protection and moisture resistance consistent with that range.

Frequently asked questions

Is TAJR105K020YNJ suitable for high-frequency or low-ESR circuits?

The 20 Ohm ESR is relatively high for a 1 µF capacitor. This part is not suited for high-frequency decoupling or low-ESR filtering applications. It is better matched to bulk storage, timing circuits, or coupling where ESR is not the primary constraint.

Can TAJR105K020YNJ be used in automotive designs?

The evidence does not list AEC-Q200 or automotive qualification. The -55°C to 125°C range overlaps automotive temperature grades, but without an AEC-Q mark, it is not qualified for automotive PPAP. Use a certified automotive-grade tantalum for under-hood or safety-critical applications.