SMBJ45AHE3/52

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS - Diodes

TVS (Transient Voltage Suppression) diodes are used to protect sensitive electronics against overvoltage transients and offer protection against destructive voltage surges. The SMBJ45AHE3/52 is a unidirectional glass passivated, bi-directional transient voltage surge suppressor diode. This diode is specifically designed to protect sensitive and delicate electronics from interference and damage caused by voltage overshoots.

Application Field

The SMBJ45AHE3/52 diode provides uni-directional and bi-directional protection from transients and is designed to protect semiconductor components and circuits from damage caused by high-voltage spikes. It is suitable for use in various applications, such as power supplies, communication and automotive electronic equipment, audio equipment, medical equipment, and portable electronic devices. This diode is designed to protect inputs (serial ports, USB ports, etc.), outputs (relays, motors, etc.), as well as whole circuits and components from overvoltage damage.

Working Principle

The SMBJ45AHE3/52 diode is designed to protect semiconductor components and circuits from damage caused by transient surges. When the voltage rises above a certain level, the diode will be triggered and switch to a high impedance state. This high impedance state acts as a barrier to the undesired transient, clamping the voltage and diverting its energy and current away from the protected circuitry. Once the transient power surge dissipates, the diode will switch back to its low-impedance state and return to full functionality.

The SMBJ45AHE3/52 diode is a dual-mode bi-directional diode, providing protection against voltage spikes entering or leaving the circuit. It functions as a clamp circuit configured in parallel with the protected component, designed to clamp the voltage at a predetermined level. The diode also has very low turn-on and clamping voltage characteristics, which ensures that high-frequency transients are captured before they can cause any damage.

Conclusion

The SMBJ45AHE3/52 diode provides bi-directional protection against voltage spikes and overvoltages occurring in electronics. It is designed to be used in a wide range of applications, such as power supplies, communication and automotive electronic equipment, audio equipment, medical equipment, and portable electronic devices. The diode functions as a clamp circuit configured in parallel with the protected component, and is designed to clamp the voltage at a predetermined level. The low turn-on and clamping voltage characteristics of this diode ensures that high-frequency transients are captured before they can cause any damage.

The specific data is subject to PDF, and the above content is for reference