The 300 mOhm ESR at 100 kHz determines the self-heating under ripple current — for a 1 A p-p ripple, dissipation is roughly 0.3 W, which the 2917 (7343 Metric) package can handle with adequate PCB copper.
TAJY227K004RNJ KYOCERA AVX 220 µF 4 V Molded Tantalum
MPNTAJY227K004RNJ
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KYOCERA AVX TAJ series, Molded tantalum capacitor, 220 µF ±10%, 4 V rated, 300 mOhm ESR, -55°C to 125°C, 2917 (7343 Metric) SMD package, Tape & Reel
$0.7441Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 300mOhm |
| Voltage - rated | 4 V |
| Operating temperature | -55°C~125°C |
| Size (Dimension) | 0.287\" L x 0.169\" W (7.30mm x 4.30mm) |
| Height - seated | 0.079\" (2.00mm) |
| Package | Tape & Reel (TR) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 220 µF |
| Case | 2917 (7343 Metric) |
| Manufacturer size code | Y |
Product details
Frequently asked questions
Is TAJY227K004RNJ RoHS compliant?
The TAJ series is generally RoHS compliant, but the specific RoHS status for TAJY227K004RNJ should be confirmed on the manufacturer's compliance certificate or at RFQ time, as plating and termination materials can vary by date code.