KYOCERA AVX TPS series, molded tantalum capacitor, 1 µF ±10%, 35 V rated, 3 Ohm ESR, 1206 (3216 Metric) package, -55°C to 125°C operating range.
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TPS |
| Mounting | Surface Mount |
| ESR | 3Ohm |
| Voltage - rated | 35 V |
| Operating temperature | -55°C ~ 125°C |
| Size (Dimension) | 0.126\" L x 0.063\" W (3.20mm x 1.60mm) |
| Height - seated | 0.071\" (1.80mm) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 1 µF |
| Case | 1206 (3216 Metric) |
| Manufacturer size code | A |
Housed in a 1206 (3216 Metric) molded case, the part measures 3.20 mm x 1.60 mm with a seated height of 1.80 mm. The molded construction provides mechanical robustness and moisture resistance, and the surface-mount package reflows on standard solder profiles.
The equivalent series resistance is 3 Ohm at the datasheet's measurement frequency. This ESR value determines the ripple current rating and self-heating under AC load — for a 1 µF output cap on a 500 kHz buck converter, the 3 Ohm ESR contributes the dominant impedance at the switching frequency.
A ceramic capacitor of the same capacitance and voltage rating (e.g., an X7R 1 µF 35V in 1206) is a functional alternative in many decoupling and filtering applications, but the comparison is not one-to-one. The tantalum's 3 Ohm ESR provides damping that a ceramic's sub-100 mOhm ESR lacks — in a power rail with a low-ESR ceramic, you may need an external series resistor to prevent ringing. Also, ceramics exhibit DC bias derating (capacitance drops with applied voltage), while tantalums do not. For a direct drop-in without board spin, stick with the same TPS series order code.