VTVS28ASMF-M3-08 Circuit Protection

Voltage - Clamping (Max) @ Ipp:	47V
Supplier Device Package:	DO-219AB (SMF)
Package / Case:	DO-219AB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	412pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	8.21A
Series:	TransZorb®
Voltage - Breakdown (Min):	31.4V
Voltage - Reverse Standoff (Typ):	27.9V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

TVS (Transient Voltage Suppressors) diodes, also known as TransZorb, provide circuit protection from electrostatic discharges (ESD) and electrical transients. This type of solution is commonly used for its robustness and durability in applications where electrical signals need to be low-noise. In this article, the VTVS28ASMF-M3-08 will be discussed in detail, including its application field and working principle.

Application Field

The VTVS 28ASMF-M3-08 is a unidirectional Transient Voltage Suppressor diode array used for protecting digital systems from damaging electrostatic discharges (ESDs) and electrical transients. It is made using a blend of silicon and silicon nitride substrates and features high-performance silicon photodiodes to offer unique protection. The diode array is designed for applications up to 30V, making it ideal for use in consumer electronics, automotive, industrial, computer, and telecommunications devices. It is also designed to reduce EMI/RFI noise and meet stringent ESD standards. The device offers a triple protection feature with two lines of protection against ESD and one line of protection against electrical transients. It also features low-capacitance values and high-speed switching, allowing it to protect against even very short transients. The diode array provides ESD protection for high-speed data lines up to 15KV Human Body Model (HBM) and 15KV Contact Discharge (CDM) and electrical transient immunity up to 5V/ns.

Working Principle

The VTVS 28ASMF-M3-08 works to protect sensitive devices from damage caused by ESD and electrical transients. When an ESD strike occurs, the diode array redirects the excessive voltage away from the device and safely dissipates it. This helps to prevent the device from being damaged by the high voltage. The VTVS 28ASMF-M3-08 also works to protect against electrical transients by clamping the voltage and limiting the current through the device. When operating, the diode array turns on quickly, allowing it to protect against very short transients. It also turns off quickly to reduce ringing on the protected line. Additionally, the diode array features low leakage current and low capacitance values to help reduce noise on the protected line.

Conclusion

The VTVS 28ASMF-M3-08 is an ideal solution for protecting digital systems from damaging electrostatic discharge (ESD) and electrical transients. It features a blend of silicon and silicon nitride substrates and high-performance silicon diodes to offer robust protection. It is designed for applications up to 30V and offers triple protection with two lines of ESD protection and one line of protection against electrical transients. Additionally, the diode array is capable of reducing EMI/RFI noise and meets stringent ESD standards.

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