SMF17A-HM3-18

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Transient Voltage Suppressors (TVS) are components used for protective clamps in surge suppression circuits. The SMF17A-HM3-18 is an example of a axial-leaded unidirectional transient voltage suppressor diode. Its features include a unidirectional low capacitance for ESD protection, and a wide operating voltage range of 6.8-18V. The SMF17A-HM3-18 is applied in various electronic circuits for over-voltage protection.

Application Field

The SMF17A-HM3-18 is designed for over-voltage protection in electronic circuits. It is suitable for such applications as TV sets, monitors, computer peripherals, telecommunications equipment, automotive system, printer control board, DVD-player, car audio, and snowmobiles. This surge suppressor diode can also be used for embedded microcontroller applications where high reliability is needed.

Working Principle

In high-frequency, high-speed switching applications, the SMF17A-HM3-18\'s series-protection combines with its ultra low capacitance to limit lines from potential damaging voltage transients. The SMF17A-HM3-18 can clamp down the voltage to a safe level, protecting the circuit from any over-voltages.

As the voltage increases during an incoming transient, the SMF17A-HM3-18 enters its active clamp area and begins to conduct. This clamps down the voltage to a safe level, protecting the circuit. Once the transient is past, the SMF17A-HM3-18 returns to its non-conductive state. The SMF17A-HM3-18 also has the characteristics of protection against ESD, protecting the circuit from material and load changes.

Conclusion

The SMF17A-HM3-18 is a important component of transient voltage suppression in different applications. It features a wide operating voltage range of 6.8-18V, low capacitance for ESD protection and reliable over-voltage protection. The SMF17A-HM3-18 is thus widely applied in TV sets, monitors, computer peripherals, telecommunications equipment, automotive system and snowmobiles. Its series-protection and ultra-low capacitance make this an effective device for high-frequency, high-speed switching protection.

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