MSMCJLCE70AE3

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TVS (Transient Voltage Suppression) diodes are electrostatic or electrical breakdown devices designed for the protection of electrical or electronic circuits against transient overvoltage (voltage spikes) caused by lightning, industrial test equipment and instrumentation, and in a variety of automobiles, airplanes and spacecraft. The MSMCJLCE70AE3 is a bi-directional, high-two terminal device ideal for industrial and automotive systems that require high surge capability with very low leakage. The device is designed to protect against electrostatic discharge (ESD) and other high transient voltage overshoots, and is rated for 70 amperes peak surge current.

The MSMCJLCE70AE3 has a stand-off voltage of 7 volts and a clamping voltage of 10.5V, ensuring that the voltage does not exceed these limits. The device also features a low clamping voltage, low effective capacitance, high surge current capability, and good reverse blocking capability. It is available in SOT-223 and SOT-323 packages.

The working principle of the MSMCJLCE70AE3 is based on the principle of Zener breakdown wherein a depletion region is created between N and P semiconductor layers when the device is exposed to a high voltage. When this voltage is exceeded, an avalanche breakdown occurs, which causes the depletion region to undergo a high rate of electron-hole recombination leading to the production of an avalanche current. This current is then dissipated, and the excess energy is removed from the device, thereby protecting the device from damage or destruction.

The MSMCJLCE70AE3 is designed to provide protection in many industrial, automotive and other power systems. It is particularly useful in applications such as automotive powertrains, power distribution units, automotive electronic control racks, and automotive body electronics. The device is also suitable for some aerospace applications, such as high transient voltage applications in alternators, fuel and hydraulic systems, and engine control systems.

In automotive powertrains, the device is used to protect critical electrical and electronic components from transient voltage overshoot due to EMI and inductive kick back currents from electric or hybrid motor drive systems. It also helps protect electric powertrain components such as battery, alternator, electric motor and onboard charger from overvoltage events. In power distribution units, the MSMCJLCE70AE3 is used to protect all the downstream components from damages due to line induced transients. The device is also used in automotive body electronics applications such as body control modules, door modules, audio systems and instrument clusters.

In conclusion, the MSMCJLCE70AE3 is an ideal choice for protection against electrostatic discharge (ESD) and other high transient voltage overshoots in a wide range of industrial, automotive and aerospace applications. Its low clamping voltage, low effective capacitance, high surge current capability and good reverse blocking capability make it an ideal device for use in transient voltage protection applications.

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