T540D687M003BH8705

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Tantalum - Polymer Capacitors

Tantalum - Polymer Capacitors, or Ta-Poly Caps, are an established type of capacitor developed in the 1970s to replace older aluminum electrolyte capacitors. The technology enables the production of surface mount capacitors with higher capacitance than their electrolytic counterparts and higher temperature ratings. The T540D687M003BH8705 is a type of Ta-Poly Cap.

Application Field

Ta-Poly Caps are used in a wide range of applications and industries including consumer electronics, automotive, defense, aerospace, and medical. They are used in mobile phones, computers, digital cameras, radios, and televisions, as well as automotive systems, communication systems, and military-grade equipment. Given their higher temperature rating than aluminum electrolyte capacitors, Ta-Poly Caps are ideal for commercial and industrial-grade applications.

Working Principle

At the heart of the Ta-Poly Cap is a dielectric composed of sintered-pressed tantalum powder and a polymer electrolyte. The electrochemical properties of this dielectric create a non-linear capacitance-voltage response resulting in high-performance identification and filtering. To further enhance their performance, Ta-Poly Caps are available with a variety of dielectrics such as polypropylene, polyethylene, and polyester.

Ta-Poly Caps provide improved performance features such as higher temperature ratings and the ability to operate over a wide range of temperatures, a range of capacitance values and sizes, stable high-frequency characteristics, and low DC leakage. Additionally, Ta-Poly Caps are usually smaller and lighter than aluminum electrolyte capacitors and can be soldered using standard surface-mount technology.

Conclusion

While Ta-Poly Caps are more expensive than aluminum electrolyte capacitors, they offer superior performance features. The high-capacitance and reliable temperature ratings make them ideal for commercial and industrial applications, and they are used in a wide range of industries including consumer electronics, automotive, defense, aerospace, and medical. The T540D687M003BH8705 is a type of Ta-Poly Cap that can provide superior performance in any of these sectors.

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