SMCG45CA-E3/9AT

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TVS (Transient Voltage Suppressor) diodes offer a cost-effective solution for controlling transient voltages. The SMCG45CA-E3/9AT is a TVS diode specifically designed to protect sensitive electronic components and circuits against even the toughest of transientvoltages. This article will explore the application field of the SMCG45CA-E3/9AT and its operating principle.

The SMCG45CA-E3/9AT is a unidirectional low capacitance TVS diode. It can be used for a range of applications, including overvoltage protection, surge protection, spike protection, and EMI/RFI protection. It is primarily designed for consumer and industrial electronic devices, such as computers, electronic test equipment, high density memory modules, professional audio, and telecommunications. It is also suitable for automotive applications, such as anti-lock braking systems and power windows.

The SMCG45CA-E3/9AT is rated at 33V, and is capable of transient voltage suppression up to 45V. It can handle pulse capabilities of up to 6000W (with 10/1000μs wave form) and is also compliant to the RoHS environmental standard. It has a breakover voltage of 28V and a device capacitance of only 9.0pF. The diode also has a power dissipation rating of 500mW for 1ms, making it suitable for a variety of different applications.

The SMCG45CA-E3/9AT utilizes a two-junction construction, which enables it to absorb transients in both directions and provide protection against high voltages. The device features an internal breakdown voltage rating and a wide operating temperature range of -55°C to +125°C. The device is also designed to be reverse biased for normal operation, allowing for simpler circuit protection. The TVS diode is designed to be placed as close as possible to the electronic device it is intended to protect.

The SMCG45CA-E3/9AT operates in two stages. The first stage is a triggering stage, in which the diode starts conducting when the voltage across its terminals reaches the breakover voltage. When the voltage exceeds the breakdown voltage, the diode enters the second stage of the operation. In this stage, the diode passes current until the waveform peaks, and then the diode shuts off. The diode is then re-energized when the voltage falls below the breakover voltage.

In conclusion, the SMCG45CA-E3/9AT is an ideal TVS diode for a variety of different applications, including overvoltage protection, surge protection, spike protection, EMI/RFI protection, automotive applications, and more. It is a low capacitance device, featuring an internal breakdown voltage rating and a wide operating temperature range. It also features a two-junction construction, which allows it to provide protection against high voltages, and is reverse biased for normal operation. Lastly, it operates in two stages, first entering a triggering stage when the voltage across its terminals reaches the breakover voltage, before entering the second stage of operation, in which the diode passes current until the waveform peaks, and then shuts off.

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