The EMZC6.8N is a Transient Voltage Suppressor (TVS) diode manufactured by Rohm Semiconductor. It is designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD).

Applications

• Data lines protection
• Signal lines protection
• Microcontroller protection
• Power supply protection
• Automotive electronics

Features

• Unidirectional TVS diode
• Low clamping voltage
• Fast response time
• Small surface mount package (SOD-523)
• High surge current capability

Benefits

• Protection of sensitive electronic components from voltage transients
• Improved system reliability
• Reduced downtime due to component failure
• Compliance with industry standards for ESD and surge protection
• Compact size for space-constrained applications

Additional Details

The EMZC6.8N has a reverse standoff voltage of 6.8V. Its breakdown voltage is typically around 7.5V to 8.5V, and its clamping voltage at a specific peak pulse current (IPP) is significantly lower than the breakdown voltage, ensuring that the protected circuitry is not exposed to damaging voltage levels. The peak pulse power dissipation is typically in the range of 200W to 400W, depending on the specific surge waveform and duration. The device features a very fast response time, typically in the nanosecond range, allowing it to quickly clamp transient voltages before they can damage sensitive components. The EMZC6.8N is commonly used in data lines, signal lines, and power supply circuits to provide robust transient voltage protection.

Designers should refer to the Rohm Semiconductor datasheet for detailed electrical specifications, including the specific clamping voltage, peak pulse current, and surge waveform characteristics. Proper PCB layout is important to minimize inductance and ensure optimal transient voltage suppression performance.