SMF05T1G

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Transient Voltage Suppression (TVS) diodes limit the surge of voltage caused by ESD (electrostatic discharge), EFT (electrical fast transients), and lightning activities. They protect sensitive electronic components by diverting the surge current away from them. The SMF05T1G is a member of the SMF05T1 series of TVS diodes from Littelfuse, the world\'s largest electronic components manufacturer. They are designed for the protection of interface circuits, dual-in-line memory modules, and other semiconductor components.

SMF05T1G Application Field

The SMF05T1G provides protection for applications that need to maintain a low capacitance. With a clamping voltage of 10 V, the SMF05T1G’s low capacitance of 0.5 pF is ideal for high speed applications such as signal line protection, plasma television protection, and data line protection.

SMF05T1G Working Principle

The SMF05T1G is a unidirectional diode with an on-state standing voltage drop of 1.1V. This diode offers peak pulse power and peak pulse current ratings of 900W and 5.3A respectively. The SMF05T1G also features physical characteristics such as an epoxy molded package and lead free/RoHS compliant terminals.

When exposed to a surge in voltage, the SMF05T1G activates its Zener breakdown functionality to protect the circuits from being damaged. This is done by the TVS diode redirecting the surge current from the circuit’s path, creating a low-impedance path to the ground. This process results in the SMF05T1G absorbing and dissipating the surge as it travels to the ground without affecting the core circuitry.

Conclusion

Although the voltage and current ratings vary depending on the type of TVS diode, all of them work together to protect circuits from damage due to voltage surges. The SMF05T1G is particularly suitable for high-speed applications due to its low capacitance. Its high peak pulse ratings and epoxy molded package make it an ideal choice for applications where component size and cost are important.

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