KYOCERA AVX TAJ series, 33 µF, 4 V, ±20%, molded tantalum chip, B case (1411 / 3528 metric), -55°C to +125°C, active production.
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| Voltage - rated | 4 V |
| Operating temperature | -55°C ~ 125°C |
| Size (Dimension) | 0.138\" L x 0.110\" W (3.50mm x 2.80mm) |
| Height - seated | 0.083\" (2.10mm) |
| Package | Tape & Reel (TR) |
| Features | General Purpose |
| Tolerance | ±20% |
| Capacitance | 33 µF |
| Case | 1411 (3528 Metric), 1210 |
| Manufacturer size code | B |
The B case (1411 / 3528 metric) footprint measures 3.50 mm x 2.80 mm with a seated height of 2.10 mm max. This is the standard tantalum chip size for medium-density boards — the same footprint as AVX's own TAJ-B and TPS-B series, so a layout swap between them is pad-compatible.
The molded construction keeps the dielectric sealed against moisture ingress across that range.
Yes, it is polarized. The anode (+) is marked by a stripe or band on the body; the cathode end is unmarked. The polarity marking follows the standard tantalum chip convention — the stripe end is the positive terminal.
A direct B-case replacement with higher voltage (e.g., TAJB336M006RNJ at 6.3 V) or higher capacitance (47 µF at 4 V) shares the same footprint, so a BOM substitution is pad-compatible. Confirm the ESR and ripple current rating for the new voltage/capacitance combination.