M39003/09-0261/HSD

M39003/09-0261/HSD Application Field and Working Principle

Tantalum capacitors are designed for use in high temperature environments, dynamic environments with electrical noise, and electrical devices with high working voltage and fast-switching applications. The M39003/09-0261/HSD is a high quality, high temperature, surface mount tantalum capacitor. This product from the leading manufacturer defines a new class of capacitors that are designed to perform in the hot and challenging environment of modern electronics.

Due to its unique construction, the M39003/09-0261/HSD can provide excellent electrical and thermal performance in extreme environments. It features two terminations instead of one, a Hasl-copper metallization system, and special microstructure material design with special mica dielectric. This M39003/09-0261/HSD can easily provide reliable operation in even the harshest environmental conditions such as high temperature, high frequency, high pressure and high humidity.

Working Principle

The M39003/09-0261/HSD is a surface-mounted version of the well-known tantalum capacitor. It is based on the principle that between two coaxial metal electrodes, a dielectric material is placed, which ensures that an electrical current flows between them without an electric current over the dielectric material. This dielectric material is traditionally a tantalum oxide.

The M39003/09-0261/HSD has two main components. One is the anode, which is usually made from a nickel-iron-tin metal electrode, and the other is the cathode, which is typically a silver-plated version of a nickel-iron-tin metal electrode. This ensures the underlying materials are of similar composition. The two components are then enclosed in an epoxy encapsulation material to protect them from harsh environmental conditions.

The tantulum capacitor works based on the principle of reverse-biased electrostatic capacitance, therein an electric current applied across its terminals causes a charge to build up at each terminal. Although the capacitor can maintain a charge throughout its operating temperature and voltage range, it is important to note that its capacitance will decrease at higher temperatures due to the lower insulation resistance of its dielectric material.

Advantages of the M39003/09-0261/HSD

Tantalum capacitors are designed to be suitable for use in extreme temperatures and dynamic environments where high levels of electrical noise can cause corrosion. The M39003/09-0261/HSD offers several advantages compared to other capacitors and is especially suitable for use in high temperature environments. The advantages include:

• High heat resistance
• High capacitance
• Low profile
• Low leakage current
• Fast switching time
• High working voltage
• High insulation resistance

The M39003/09-0261/HSD offers excellent electrical and thermal performance in harsh environments and is an ideal choice for a variety of applications, such as high frequency switching, high temperature conditions and high drain applications.

Limitations of the M39003/09-0261/HSD

The M39003/09-0261/HSD is not without some limitations, however. The material used for the anode and cathode are susceptible to corrosion with exposure to volatile atmospheres. This can increase the amount of electrical current that is allowed to leak through the capacitor. Additionally, the dielectric material used does not offer the highest possible capacitance, limiting the capacitance of the M39003/09-0261/HSD.

Conclusion

The M39003/09-0261/HSD provides high quality performance and is ideal for high temperature applications where other capacitors would struggle. Its unique construction ensures low leakage current, fast switching time, high insulation resistance and high working voltage. Its biggest disadvantage is its susceptibility to corrosion when exposed to certain atmospheres, however this can be managed in most applications.