MSMCJ54CA

Voltage - Clamping (Max) @ Ipp:	87.1V
Supplier Device Package:	DO-214AB (SMCJ)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	17.2A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	60V
Voltage - Reverse Standoff (Typ):	54V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MSMCJ54CA Application Field and Working Principle Explained

In terms of protection and circuit performance, TVS – Diodes are reliable semiconductor devices used for protecting sensitive electronic equipment from electrostatic discharge (ESD) and voltage surges. The MSMCJ54CA is a small footprint, thermal protected unidirectional TVS – Diode designed to limit overvoltage events and protect the device from electrical transients to which they are exposed.

TVS – Diodes Overview

TVS – Diodes act as a protection solution for a device when an overload occurs, usually during ESD and power-surge events. They are commonly referred to as transorb diodes due to their ability to absorb and disperse the transient energy in a short amount of time. TVS – Diodes are typically used in the automotive, telecom, personal computer, and consumer electronics industries, as well as the medical and industrial arenas. What sets a TVS – Diode apart from regular protection diodes is the amount of protection they offer and how fast they are able to switch on. A TVS – Diode will protect up to a certain peak voltage (VPP), and the diode will switch on in a few nanoseconds. This greatly reduces the risk of damage to the circuit and helps optimize performance.

MSMCJ54CA Application Field

The MSMCJ54CA is a low-voltage junction unidirectional device used in low voltage applications to provide protection in the case of overvoltage events. It has a nominal 5-pin configuration and two mounting holes on the side to offer easy mounting onto a PCB. The MSMCJ54CA is primarily used for protecting circuits from external electrostatic discharge (ESD) and power-surge events. It is suitable for applications such as computer peripheral ports, LAN ports, USB and SATA ports, monitor ports, and industrial control systems. The MSMCJ54CA is also ideal for products exposed to tight EMI constraints such as medical equipment, consumer electronics, and home appliances.

MSMCJ54CA Performance Specifications

The MSMCJ54CA has a peak pulse power rating of 200 watts. It can handle peak pulse currents of up to 11.7A and withstand instant, 180A power cycling current surges. It is protected against transient overvoltage events up to 80V.It has a low junction capacitance of 100pF meaning it is suitable for low-level trigger circuits. Furthermore, it is RoHS compliant with a typical zener breakdown voltage range of 6.8V to 11.5V and a typical capacitance of 1,000pF.

MSMCJ54CA Working Principle

The MSMCJ54CA is an unidirectional TVS – Diode designed to absorb transient energy overvoltage events. It works by providing a path for the current to flow away from the sensitive circuitry. As soon as the signal exceeds the diode’s breakdown voltage, a large amount of current is drawn from the device and the voltage across the device is clamped to a much lower value. The device maintains a low forward current that does not interfere with the regular operation of the protected circuitry. When the transient is over, the MSMCJ54CA turns off automatically and allows normal operation to resume. These features provide superior protection from ESD and power-surge events, allowing for improved performance and extending the life of the device.

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