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Application Field and Working Principle of 10SEP120M+TSS Aluminum-Polymer Capacitors

Aluminum-polymer capacitors are known for their superior environmental performance, high capacitance retention and low temperature dependant capacitance. The 10SEP120M+TSS, a specific type of aluminum-polymer capacitor, provides superior reliability and is ideal for demanding applications in both computer and automotive electronics. This article will explain the 10SEP120M+TSS’s application field and working principle.

Application Field of 10SEP120M+TSS

The 10SEP120M+TSS, a safe, high-performance aluminum-polymer capacitor from Murata, is designed and developed with a PPS (Polyphenylene Sulphone) case to provide robust performance in automotive and computer applications, including standby power supply, high motor drive/PWM, voltage line ups and as a capacitor range extender.

The 10SEP120M+TSS, with its low ESR high capacitance, offers excellent ripple current characteristics for power conditioners, such as in laptops and electronic automotive circuit boards. Moreover, the capacitor can be used in the DC/DC converter in on-board chargers and the CAN-IB (Bus) and IMAX (Safety) lines, as well as in switched-mode power supplies.

Working Principle of 10SEP120M+TSS

The 10SEP120M+TSS aluminum-polymer capacitor is constructed by filling an anode material, usually polystyrene, between two aluminum-coated polypropylene sheets. The polystyrene dielectric is then treated to give it a high dielectric constant and enhanced capacitive performance. The two aluminum coatings on the polypropylene sheets act as the anode and cathode respectively, whilst the polystyrene acts as the dielectric between them.

The 10SEP120M+TSS therefore has two main features; low ESR (Equivalent Series Resistance) and high capacitance. The low ESR ensures that the capacitor is capable of testing maximum power supply ripple currents, allowing for a more efficient energy transfer between components. Meanwhile, the high capacitance ensures the capacitor is capable of storing more power.

Superior Performance of 10SEP120M+TSS

The 10SEP120M+TSS aluminum-polymer capacitor offers superior performance for its various applications. In particular, it has a low ESR which can lead to up to 10 times better ripple current performance than conventional capacitors, making it ideal for applications where ripple current performance is critical. Furthermore, the 10SEP120M+TSS has a high capacitance retention rate of up to 94%, meaning it maintains its performance even in challenging environments. It also has a low temperature dependence rate, meaning only a minor temperature increase is necessary to affect the capacitor performance.

In addition, the 10SEP120M+TSS is fully RoHS compliant, meaning it is safe to use in an environment where harmful substances are present. It is also designed to be compatible with automatic PCBA assembly, making it suitable for cost-sensitive applications. The capacitor also has a long life span, meaning it can perform its intended functions for an extended period of time without any concern for its mechanical or electrical integrity.

Conclusion

The 10SEP120M+TSS aluminum-polymer capacitor is ideal for applications where low ESR and high capacitance are essential, such as in computer and automotive electronics. It is highly reliable and offers superior performance in terms of ripple current performance and capacitance retention. The 10SEP120M+TSS is also RoHS compliant, meaning it is safe to use and suitable for cost-sensitive applications. It is designed to be compatible with PCBA assembly, ensuring effective production and cost efficiency.

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