VTVS40ASMF-HM3-18

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 (Transient Voltage Suppressor) diodes, commonly known as surge protection devices, are electronic components designed to protect electronic components and circuits from excessive voltage transients. They are usually used to protect sensitive electronic equipment from damage due to transient events such as lightning strikes, brownouts, or power anomalies. The VTVS40ASMF-HM3-18 is a TVS diode designed specifically for this purpose.

The VTVS40ASMF-HM3-18 is an automotive grade, unidirectional, big package, AC suppressor, which offers protection for 12 Vdc/24 Vdc automotive systems. This device is designed to protect Automotive electronic systems from surges caused by EFT (Electronic Fast Transient), ESD (Electrostatic Discharge), and EMI (Electromagnetic Interference) events. It is an ultra-fast responding device with peak pulse power ratings of 5 KW, 10-30 Vdc. It has an operating temperature range of -55°C to 125°C, and a 45 mA hold current rating.

In terms of its application field, the VTVS40ASMF-HM3-18 is commonly used in applications such as ECUs (Electronic Control Units), TCU (Transmission Control Unit) in automotive vehicles, audio devices, power supplies, and other DC/AC electrical devices.

The working principle of the VTVS40ASMF-HM3-18 is based on the Reverse-Biased Avalanche Breakdown of a slab of silicon. This device consists of two sections: a P-N junction and two Zener diode structures. When a surge event or excessive voltage is detected on the input terminal, the P-N junction switches on and the voltage across it increases. When the voltage across the P-N junction exceeds the design threshold voltage of the device, it triggers the Zener diode to conduct current. This current is then dissipated by the device as heat. This current is also used to suppress the excessive voltage. Once the transient event has passed, the device returns to its quiescent state, thus providing surge protection to the connected load.

In conclusion, the VTVS40ASMF-HM3-18 is a robust and reliable surge protection device that can be used in a variety of applications. It works by using the Reverse-Biased Avalanche Breakdown of a silicon slab to suppress excessive voltage transients, thus protecting the connected load. Additionally, its wide operating temperature range makes it suitable for use in challenging environmental conditions.

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