SMBJ20CA-M3/5B

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Tvs diodes are devices that primarily protect electrical and electronic circuits against over-voltage transients and surges. The SMBJ20CA-M3/5B is one such device, intended for automated assembly and board-level protection of low- and medium-current power and signal circuits. It provides unidirectional transient over-voltage protection for circuits exposed to high levels of electrostatic discharge (ESD) and lightning-induced power surges.

The SMBJ20CA-M3/5B is a surface-mount device with a minimum breakdown voltage of 20V. It has a maximum surge current of 200A (8/20µs) and a broad operating temperature range of -55°C to 150°C. The breakdown voltage of the device is precisely controlled in both over-voltage and reverse-bias directions. This control provides optimal protection for sensitive integrated circuits without the addition of external components.

SMBJ20CA-M3/5B tvs diodes are primarily used in telecom and automotive applications, but their popularity is growing in the consumer electronics market as well. They can be used for protecting signal and power lines in a variety of electronic devices, including switches, routers, modems, TVs, cell phones, cameras, laptops, and gaming systems. The over-voltage protection provided by this tvs diode helps ensure that the electronic device, or any of its components, won’t be damaged by an unexpected surge or spike in electrical current.

The SMBJ20CA-M3/5B tvs diode works by quickly and effectively clamping the voltage across its terminals when the applied voltage exceeds its breakdown voltage. When a high potential is applied, a breakdown current or avalanche current is created in the device. The avalanche current is usually higher than the breakdown current, and this is what makes the tvs diode effective in protecting the device. The avalanche current quickly dissipates, limiting the peak voltage that reaches the device.

When the transient voltage passes, the SMBJ20CA-M3/5B tvs diode quickly recovers to its normal reverse-bias voltage. This helps to protect the device from over-voltage transients and surges. The tvs diode can also be used as an active component in the design of circuits, and has a low-cost profile due to its simple design and construction.

Tvs diodes, such as the SMBJ20CA-M3/5B, are important components in circuit protection. They provide reliable protection from over-voltage transients and surges that could otherwise damage sensitive electronic components. Their simple design and construction make them an ideal choice for protecting a variety of consumer electronics and telecom components from unexpected surges.

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