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

SMBJ5955B Application Field and Working Principle

The SMBJ5955B is a single, subminiature 500 mW Bidirectional Zener diode. It is a high power bidirectional transient voltage suppressor ideal for use in portable devices and other applications requiring a protection circuit that is highly resistant to both thermal shock and reverse current leakage. It is the perfect choice when the requirements call for a fast-acting, wide frequency range protection circuit.

Application Field

The SMBJ5955B is ideal for use in portable electronic devices, such as laptop computers, cell phones, PDAs, digital cameras and other applications. Its small physical size makes it an ideal choice for use in space-saving protection circuits.

This diode can also be used in automotive applications, such as battery protection, ignition protection, power transmission line protection, and voltage transient protection.

Furthermore, the SMBJ5955B can be used in industrial applications such as high current power supplies, motor controllers, and motor control boards.

Working Principle

The SMBJ5955B is a Zener diode with a breakdown voltage rating of 5.9V and a typical reverse leakage current of 100 µA. This diode is designed to clamp transient voltage spikes to a safe level and protect the connected device from electrical stresses caused by ESD (electrostatic discharge) or EMI (electromagnetic interference).

The Zener diode can be found in two forms: unidirectional (48V) and bidirectional (50V). The Bidirectional Zener diode is designed to protect both polarities of the applied voltage. The current will flow through the diode in either direction, allowing the protection circuit to be used in DC-powered applications.

When a transient voltage spike is applied to the diode, it conducts current to ground in order to protect the connected circuit. The SMBJ5955B is rated for 500 mW, which means it can handle higher energy surges than its counterparts. The diode has a fast response time, making it ideal for use in protection circuits where fast protection is necessary.

The SMBJ5955B is RoHS compliant, making it environmentally friendly and ideal for use in green applications. The diode is also lead-free, making it a safe choice for use in consumer electronics and medical equipment.

Overall, the SMBJ5955B is a great choice for use in portable electronic devices and automotive and industrial applications. Its small physical size, fast response time, and high power rating make it the ideal choice for protecting sensitive electronics from transient voltage spikes.

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