Bulk capacitance for a 4 V rail — ESR and temperature matter
The molded case (size code W, 6.00 mm x 3.20 mm footprint, 1.50 mm seated height) is the standard surface-mount form factor for this capacitance and voltage class.

KYOCERA AVX TAJ series, molded tantalum capacitor, 47 µF ±10%, 4 V rated, 500 mOhm ESR, -55 to 125 °C, surface-mount 2312 (6032 Metric) package, size code W.
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 500mOhm |
| Voltage - rated | 4 V |
| Operating temperature | -55°C ~ 125°C |
| Size (Dimension) | 0.236\" L x 0.126\" W (6.00mm x 3.20mm) |
| Height - seated | 0.059\" (1.50mm) |
| Package | Tape & Reel (TR) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 47 µF |
| Case | 2312 (6032 Metric) |
| Manufacturer size code | W |
The molded case (size code W, 6.00 mm x 3.20 mm footprint, 1.50 mm seated height) is the standard surface-mount form factor for this capacitance and voltage class.
Price determines cost for BOM budgeting and sourcing decisions.
Stock availability affects lead time and whether the part can ship immediately.
Engineers need to verify fit, capacitance, voltage, and package for design.
Buyers need to know authorized distributors to procure the part.
If the part is unavailable, an equivalent ensures continuity in production or repair.
Package size is crucial for PCB layout and fit in the design.