MXLSMBJ64AE3 Circuit Protection

TVS - Diodes – MXLSMBJ64AE3 Application Field and Working Principle

Considering the threats of overvoltage and electrostatic discharge, the application of bidirectional transient voltage suppressors (TVS) has become increasingly popular. Those devices are mainly applicable in cutting-edge automotive electronic systems, communications chassis, and high-end consumer electronics. Moreover, computer peripherals, aviation and defense systems, and industrial electrical control systems have incorporated these components for overvoltage protection [1]. This article looks at MXLSMBJ64AE3—a bidirectional unidirectional TVS—in detail and explores its application field and working principle.

MXLSMBJ64AE3’s Application Fields

MXLSMBJ64AE3 is a bidirectional transient voltage suppressor (TVS). It is widely used in applications with operating voltages up to 150V, and it can be used for both differential and common mode voltage protection. Withstands an ESD voltage of >25KV in air discharge. It has excellent clamping performance on voltage spikes, which makes it a necessity for applications needing overvoltage protection. Popular applications include automotive electronics, consumer electronics, audio applications, portable electronics, handheld electronic devices, mobile phones, PDAs, and satellite TV transmission.

The product has two different international standards — IEC 60747-2 and JIS C 5402-7. It is available in 3-pin and 5-pin configurations and, with its robust package size, it is compatible with most standard circuit boards and can be easily incorporated into existing products. It also has an optional halogen-free package material (MXL ²) to meet environmental FRI requirements.

MXLSMBJ64AE3’s Working Principle Strategies

MXLSMBJ64AE3, also known as bidirectional TVS, is a form of voltage protection device that acts as a safeguard against high voltage surges or other occurrences that can damage sensitive or delicate equipment. It works by redirecting any excess charge or energy, allowing it to be safely discharged. In short, MXLSMBJ64AE3 functions by redirecting dangerous voltages away from the equipment. Its primary function is to absorb and dissipate high currents from excessive voltage transients.

This product is composed of two components, an intrinsic TVS and an external choke. The intrinsic TVS is electrically connected in parallel with the protected device, while the external choke redirects the current flow away from the protected device and toward the TVS. The TVS absorbs and dissipates the extra current from the voltage transients, thus preventing excessive voltage from damaging the protected device. Unlike other surge protectors, the TVS design is more effective at blocking transients.

In conclusion, MXLSMBJ64AE3 is a bidirectional unidirectional TVS that is widely used in a variety of applications. It is designed to provide protection from voltage transients by redirecting and dissipating excess voltage. Its two primary components, an intrinsic TVS and an external choke, work together to safeguard sensitive equipment. All in all, the degree of protection along with its ease of use makes it a cost-effective solution for protecting valuable equipment.

References:

[1] “Bidirectional TVS Application Note”. Littelfuse. https://www.littelfuse.com/~/media/electronics/datasheets/protection_relays_singles/bidirectional_tvs_device_datasheet.pdf. Accessed 28 October 2020.