SMCJ14A-QH

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TVS diodes are components that are used to protect electrical and electronic devices from excessive transient voltage levels. They come in a wide variety of types, including the SMCJ14A-QH. This specific type of TVS diode is designed to protect circuit boards, parts of automotive electronics, and other components with high transient voltage surge protection requirements. It is an ideal choice for use in industrial, automotive, and consumer applications.

The SMCJ14A-QH is a unidirectional transient voltage suppression (TVS) diode that is designed and constructed to protect sensitive electronic circuits from damage due to overvoltage transients caused by switching and ESD. The diode is designed with an integrated avalanche diode that is triggered by a high degree of overvoltage. When triggered, the avalanche diode provides a low impedance path to divert the overvoltage transient away from the protected circuit, and to ground.

The electric current capabilities of the SMCJ14A-QH are extremely high. It can handle up to 14A of surge current at 5µs, to protect against short duration transients. It also has a peak pulse power rating of 1500W. Other ratings of the SMCJ14A-QH are:

• 13V nomimal VBR at 1A
• 19.2V peak pulse power dissipation (PPPD)
• Non-repetitive peak current of 1.2kA (8/20μs)
• 0.44V stand-off voltage
• 3400PPM/°C thermal resistance

The SMCJ14A-QH TVS diode is used on the primary side of the power supply to protect against voltage spikes generated by faults or surges. It is also used on the secondary side to protect high-value components from damage due to overvoltage transients. The diode also provides a high degree of ESD protection, making it suitable for use in harsh industrial environments.

The SMCJ14A-QH TVS diode offers excellent protection for a wide range of electronic components and circuits. It employs a high-speed reverse-biased avalanche diode to protect against overvoltage transients, and can be used with a low impedance and high frequency current source to provide additional protection against ESD. In addition, the diode offers excellent thermal performance, making it well-suited for use in applications where reliability and robust protection are required.

In summary, the SMCJ14A-QH is a unidirectional TVS diode that provides effective protection for a wide range of electronic components and circuits. It offers high peak pulse power ratings, low stand-off voltage, and excellent ESD protection. It is suitable for use in industrial, automotive, and consumer applications, and is an ideal choice for protecting sensitive electronic circuits from damage due to overvoltage transients.

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