SMBJ20CA-M3/52

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The SMBJ20CA-M3/52 (hereafter referred to as SMBJ20) is a unidirectional Transient Voltage Suppressor (TVS) diode that is designed to protect power, signal, and data lines. It has been designed to suppress transient voltage pulses caused by lightning, and power faults in a variety of applications. The SMBJ20 is available in a variety of package styles to suit the needs of different product designs.

The SMBJ20 package is rectangular with a device height of 1.9mm, and a device width of 3mm. The SMBJ20 has two leadless terminals which allows it to be soldered directly to the PCB, eliminating the need for clamps, fasteners, or other additional hardware. The SMBJ20 diode offers an operating temperature range of -55°C to +150°C, as well as an array of internal protection features.

The SMBJ20 protects sensitive components from extreme burst voltages and transient voltage pulses that can be caused by outside events such as electrostatic discharges and inductive loads. In its most basic application, the SMBJ20 is connected in parallel with a load such as a microcontroller, graphic processor, or memory module. When a surge occurs, the SMBJ20 absorbs the energy, diverting it away from the load and allowing it to perform its critical job without interruption.

The SMBJ20 is a Bi-directional transient voltage suppressor diode, meaning it can protect a circuit from transient voltages in both directions. It is also capable of providing bidirectional short circuit protection for both AC and DC circuits. The SMBJ20\'s short circuit protection is particularly useful in applications that require high instantaneous currents to be reversed, such as in a switched mode power supply (SMPS).

The SMBJ20 is a three pin device and is built upon a silicon avalanche breakdown diode. The two outer pins continue the current that is diverted in the case of an overvoltage across the component, whereas the center pin is connected to the Zener diode’s integral Zener voltage. The SMBJ20 has a peak pulse power rating of 600 watts and a breakdown voltage range from 20 volts to 52 volts.

The SMBJ20 features a gain coefficient tolerance of 1% over the stated breakdown voltage, which further increases the reliability and precision of the component. The device also has an exceptionally fast clamping response time, which helps to suppress a variety of high power surges that are encountered in automotive, industrial, and consumer electronics applications.

The SMBJ20 is a versatile device that can be used in a host of different applications. It can be used to protect low voltage circuits from voltage overshoots or to isolate sensitive electronics from lightning, electrostatic discharge (ESD), and other electromagnetic interference (EMI) that are commonly found in various industrial and consumer electronics applications.

Additionally, the SMBJ20 can be used to protect inputs from short-circuiting and for circuit isolation, or even for surge and clamping in electrical power circuits. Furthermore, the device is commonly used in switch mode power supply circuits (SMPS) to control and reduce voltage surges.

In summary, the SMBJ20 is a versatile transient voltage suppressor (TVS) diode that is designed to protect power, signal, and data lines from transient voltage pulses caused by lightning, and power faults in a variety of applications. It is a three pin device, and is built upon a silicon avalanche breakdown diode with a peak pulse power rating of 600 watts and a breakdown voltage range from 20 volts to 52 volts. The device can be used to protect low voltage circuits from voltage overshoots and to suppress high power surges in automotive, industrial, and consumer electronics applications.

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