SMCJ20CA-QH

Current - Peak Pulse (10/1000µs):	46.3A
Supplier Device Package:	SMC (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Series:	Automotive, AEC-Q101, SMCJ
Voltage - Clamping (Max) @ Ipp:	32.4V
Voltage - Breakdown (Min):	22.2V
Voltage - Reverse Standoff (Typ):	20V
Bidirectional Channels:	1
Type:	Zener
Lead Free Status / RoHS Status:	--
Part Status:	Active

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TVS - Diodes: SMCJ20CA-QH Application Field and Working Principles

Tvs-Diodes are diodes designed with a specific power rating to protect against electrical transients, or spikes. This is important in the protection of consumer electronics and other sensitive devices. The SMCJ20CA-QH is a type of Tvs-Diode widely used to protect from electromagnetic interference (EMI) and electro-static discharge (ESD) that can occur in the application fields such as industrial control systems, telecom, medical, mil-aerospace, automotive, as well as consumer electronics.The SMCJ20CA-QH is a robust bi-directional voltage clamp with dual breakdown structure. It offers low dynamic resistance in combination with a high peak pulse current handling capability. This Tvs-Diode was designed to withstand repetitive surges from 10A to 20A with a maximum peak pulse current rating of 50A. It also has a maximum reverse stand-off voltage of between 20 to 160volts and a maximum working voltage of 6.5volts. The forward direction clamping voltage for the SMCJ20CA-QH is between 11 to 27 volts.In terms of its working principle, the SMCJ20CA-QH has a dual breakdown structure for better stability over temperature and increases its peak current capabilities by protecting both junctions. The working principle also states that when an overvoltage occurs, the top junction (J1) triggers the device and clamps the voltage. The low leakage at lower breakdown voltage ensures a tight clamp at slightly lower breakdown voltage. As the voltage continues to rise, the bottom junction (J2) clamps at a higher voltage and absorbs the remaining overvoltage.In applications that require ESD or surge protection, the SMCJ20CA-QH is an ideal solution. Networked industrial control systems, consumer electronics, and home appliances are all vulnerable to electrical transients. The SMCJ20CA-QH provides adequate protection against ESD and transients while being small enough to fit into a wide variety of environments. The SMCJ20CA-QH can also be used in high operating temperature applications due to its ability to handle higher temperatures without compromising its ability to protect the application from damage by electrical transients.The SMCJ20CA-QH is an excellent choice when needing electromagnetic interference (EMI) protection in consumer electronics, automotive, telecom, medical, mil-aerospace, industrial control systems, and other applications. Its dual breakdown structure and high voltage capacity ensures that it can withstand a wide range of overvoltage conditions and offer high peak current surge protection. Its robust design provides reliable operation over a wide temperature range, with a typical clamping voltage of between 11-27 volts.In conclusion, the SMCJ20CA-QH Tvs-Diode is designed for protection against ESD and EMI transients. Its unique dual breakdown structure increases the peak current capabilities and ensures stable operation over a wide range of temperatures. The SMCJ20CA-QH is a robust, reliable, and cost-effective solution for many application fields, and is an ideal choice for protecting against electrical transients.

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