SMF14A-HM3-18

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Transient Voltage Suppressors (TVS) are diodes that are designed to protect vulnerable electronic devices from damage due to ESD (electrostatic discharge), surges and spikes in voltage. The SMF14A-HM3-18 is a TVS diode from Littelfuse that is specifically designed to protect sensitive electronic components from electrostatic discharge (ESD) and power line transients.

The SMF14A-HM3-18 TVS diode is designed to protect highly sensitive microelectronic components such as MOSFETs, DRAMs, and logic, from being damaged due to ESD and short duration, high-voltage transients. It features an ultra-low capacitance of 0.53 pF and a reverse stand-off voltage of 18 V. It has an extremely fast clamping response time of 8 ns and a working breakdown voltage of 18 V. Thus, it ensures that the circuit is protected from ESD and power transients.

The SMF14A-HM3-18 TVS diode is specially designed for applications such as telecommunications, networking, computers, audio/video, industrial, consumer, and automotive. It is used in signal lines, such as HDMI, ethernet, and high-speed video and provides superior protection for sensitive electronic parts. It provides overcurrent and overvoltage protection and can handle a maximum surge current of 1.2 kA. It is also capable of handling high-energy transients up to 275 volts.

The SMF14A-HM3-18 TVS diode can be mounted in any orientation and is suitable for use in surface-mount and through-hole applications. It is available in an SMA package with 8 pins and its size is 2.5 mm X 3 mm. It is compliant with ESD standards IEC 61000-4-2 level 6 and IEC 61000-4-4 level 4. It is RoHS compliant and halogen free making it environmentally friendly.

The SMF14A-HM3-18 TVS diode uses two different working principles depending on the type of transient it is faced with. When faced with an ESD transient, the diode is designed to clamp the voltage at a predetermined level and absorb the energy. When it is faced with a high-energy transient, the diode is designed to divert the current and thus protect the circuit from damage.

In summary, the SMF14A-HM3-18 TVS diode is a fast-acting diode specifically designed to protect sensitive electronic components from Electrostatic Discharge (ESD) and transients such as surges and spikes in voltage. It is suitable for use in signal lines and is available in an SMA package with 8 pins. It is compliant with various ESD standards and uses two different working principles depending on the type of transient it is faced with.

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