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KYOCERA AVX TAJB685K020H — Specialty Capacitors

TAJB685K020H KYOCERA AVX Molded Tantalum Capacitor 6.8 µF

MPNTAJB685K020H
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KYOCERA AVX TAJ series, molded tantalum capacitor, 6.8 µF ±10%, 20 V rated, 2.5 Ohm ESR, -55°C to 125°C, surface-mount 1411 (3528 Metric) case, size code B

KYOCERA AVX TAJB685K020H datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TAJB685K020H specifications
ParameterValue
TypeMolded
SeriesTAJ
MountingSurface Mount
ESR2.5Ohm
Voltage - rated20 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)
FeaturesGeneral Purpose
Tolerance±10%
Capacitance6.8 µF
Case1411 (3528 Metric), 1210
Manufacturer size codeB

Product details

6.8 µF, 20 V, 2.5 Ohm ESR — the bulk decoupling cap

The TAJB685K020H: This is a molded tantalum capacitor from the TAJ series, rated 6.8 µF at 20 V with ±10% tolerance and a 2.5 Ohm ESR. The 2.5 Ohm ESR is the number that matters for ripple handling — a higher ESR means more self-heating under AC ripple, so this cap is better suited for bulk storage or bypass than for high-ripple output filtering.

That means it holds its capacitance and leakage within spec across avionics cold-soak and engine-bay heat — not every tantalum does.

Frequently asked questions

What is the closest pin-compatible alternative to TAJB685K020H?

Within the TAJ series, any size-code B tantalum with the same 1411 footprint and 2.8 mm width is a direct mechanical swap. The electrical match depends on capacitance, voltage, and ESR — confirm the BOM's required values before substituting.

Is TAJB685K020H RoHS compliant?

The evidence does not list an explicit RoHS compliance statement for this order code. KYOCERA AVX typically marks RoHS-compliant parts on the reel label — verify the date code and supplier declaration at order.