V120MLA1210NH Circuit Protection

TVS - Varistors, MOVs are components used to protect electronic devices from overvoltage, overcurrent and electromagnetic interference. The V120MLA1210NH is a high performance diode equipped with a reverse biased bipolar PN junction designed to absorb transients and suppress transient conducted interference. It is suitable for installation in any application where high-energy, transient voltage suppression is required.

Application Field

The V120MLA1210NH is used in a variety of consumer, industrial and automotive applications. It is a specialized transient-voltage suppressor (TVS) diode and is designed to protect sensitive components from voltage spikes and surges. Examples of possible applications include surge protection in solar panel installations, automotive systems, active filters, DC to DC converters, and more.

Working Principle

The V120MLA1210NH works by clamping the voltage present on its anode and cathode by conducting current between them when the voltage reaches its maximum peak levels. When the voltage is below the diode\'s breakdown voltage, it exhibits a near-infinite resistance, allowing for stable operation. During a transient surge, the TVS diode will transfer extremely large currents in only nanoseconds, and then go back to the original near-infinite resistance. This results in a rapid dissipation of the transient energy, providing effective protection against overvoltage and surges.

The V120MLA1210NH is an excellent choice for applications requiring fast response time (<75 ns), high burst capability (10 A (8/20 μs)), and excellent clamping capability (≤ 15.5 V). The device features a low voltage rating, making it suitable for use in low voltage applications. Furthermore, the V120MLA1210NH can handle peak power up to 15.5 W.

The V120MLA1210NH features an epoxy-encapsulated package with a 1000 VRMS creepage distance. This ensures that the diode is not exposed to high voltage, which would otherwise cause an electrical breakdown, damaging connected components and causing a short-circuit condition. Furthermore, the device is highly temperature stable and is designed to handle high peak impulses in temperatures ranging from -65°C to +150°C.

Conclusion

The V120MLA1210NH is a highly reliable diode for transient voltage suppression. It is used in a variety of applications to protect sensitive components from overvoltage and surges. The V120MLA1210NH is designed with a low breakdown voltage, fast response time, high burst capability, and epoxy-encapsulated package with creepage distance of 1000 VRMS. This makes it suitable for use in a wide range of applications including solar panel installations, automotive systems, DC to DC converters, and active filters.