How reliable are tantalum capacitors?

Modern tantalum capacitors are very reliable if used properly. That includes having a series resistance of at least 0.1 to 3 ohms in the circuit, derating the voltage to about 60% maximum of the rated voltage and keeping the temperature to a reasonable value. They must never, even briefly, be exposed to any reverse voltage.

Is a tantalum capacitor polarized or bipolar?

As frequency increases, it experiences a small decrease in capacity. (At 10kHZ its capacity drops by less than 20%) Note: Normally it is a polarized capacitor. To make it non-polarized or bipolar, two tantalum capacitors are connected in series and their anodes are oriented in the opposite direction. Why do tantalum capacitors fail?

Where can I buy a tantalum refractory capacitor?

Admat, Inc., located in Norristop, PA, distributes tantalum hybrid capacitors as well as capacitor lead sealing. It also offers other refractory metal products and parts.

What are surface mount tantalum capacitors used for?

Surface mount tantalum capacitors are used for power supply filtering in computer motherboards and cell phones due to their long-term stability and small size. Tantalum electrolytic capacitors are suitable for storing electrical energy and also for passing or bypassing low-frequency signals due to their large capacitance.

What happens if a tantalum capacitor fails?

When a Solid Electrolytic Tantalum capacitor fails, it usually has black marks on its surface. In contrast, failed short Polymer Tantalum capacitors typically do not have black marks on their surface.

What is Jianghai brand capacitor?

Jianghai brand capacitor is one of the national brands with independent intellectual property rights and self-owned brands in China’s electronic components industry, which has truly entered the international high-end mainstream market through its own channels. Xiamen Faratronic Co., Ltd. is a world-leading professional film capacitor manufacturer.