MSMCG85CAE3 Circuit Protection

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TVS Diodes (Transient Voltage Suppression Diodes) are semiconductor devices that protect electronic circuits against transient voltage impacts caused by electrostatic discharge (ESD) and other electrical disturbances. They are commonly known as ESD protection devices, as they can absorb large amounts of energy before breaking down. The MSMCG85CAE3 is a unidirectional TVS used to protect against ESD in sensitive electronic circuits.

The MSMCG85CAE3 is a low capacitance, low leakage, high power TVS designed to protect against ESD voltages up to ±17 kV contact discharge per IEC 61000-4-2. It is also compliant with the internationally recognized IEC Level 4 ESD standard. The MSMCG85CAE3 features 700 W of peak power and 2 A of average peak current. It is designed to be used in automotive, industrial, and telecom applications.

The MSMCG85CAE3 has an 8-lead package and is offered in various leadforms for ease of mounting and secure handling. It also has a very low capacitance of 0.23 pF, which improves signal integrity by minimizing signal trapping and noise. The TVS also features a 0.5 Ω series resistance to reduce leakage current and prevent voltage drops when a large energy pulse is absorbed.

The MSMCG85CAE3 uses a Zener diode and a transient suppression diode connected in series to provide protection against excessive voltage transients. When the voltage across the TVS exceeds its breakdown voltage, a large surge of current flows through the device, effectively “clamping” the voltage at its breakdown level and protecting the circuit from further damage. The current then dissipates through the internal series resistor. This type of protection is ideal for automotive, industrial, and telecom applications, where the electrical environment is often highly susceptible to electrical spikes and transients.

In conclusion, the MSMCG85CAE3 is a low capacitance, low leakage, and high power TVS designed to protect sensitive electronic circuits from ESD voltages up to ±17 kV contact discharge per IEC 61000-4-2. It features a 0.5 Ω series resistance, an 8-lead package, and adjustable leadforms for ease of mounting and handling. The MSMCG85CAE3 is suitable for a wide range of applications, including automotive, industrial, and telecom.

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