RCLAMP0506T.TCT Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are an important component for surge protection circuits used to protect electronic devices from voltage surges. RCLAMP0506T.TCT, a series of Transient Voltage Suppressor Diode, is designed to protect data/signal lines and power rail from ESD, EFT/Surge and Inductive-Kick. This series offers multiple advantages over traditional components, such as low capacitance, wide operating voltage range and high surge current capability.

Application Field

The RCLAMP0506T.TCT is designed to meet IEC61000-4-2 (ESD) ±15kV (air/contact discharge), IEC61000-4-4 (EFT) 40A (5/50ns), and IEC61000-4-5 (Surge) 18A (8/20μs). This series is suitable for high-speed data lines in a variety of consumer, computer, wired communication, automotive, and industrial electronic applications.

The RCLAMP0506T.TCT they offer high power capability for 300W above transient pulse shields in all type of applications such as I/O Interface, Automotive, Telecom, Video/Audio Equipment, Automations and Industrial Production. It is also very effective in various power over Ethernet applications for PoE devices requiring maximum ±30V protection with high speed response time.

Working Principle

The RCLAMP0506T.TCT device is essentially a bi-directional, three terminal, Zener-diode protection component formed from silicon avalanche diode chips in a Plastic package. The cathode terminal is connected to the most positive line, the anode is connected to the most negative line and the middle Zener-diode terminal provides a back-to-back diode connection.

When a surge or over-voltage occurs on the line (positive or negative), the protection component immediately shorts out the voltage to ground. The voltage is then clamped within safe levels via the Zener diode. This clamps the voltage to a voltage determined by the Zener voltage. The device is designed to quickly dissipate energy and limit voltage on the protected terminals.

When a surge or over-voltage occurs, the over-voltage current will flow through the Zener diode and the avalanche diode forward bias voltage. Initially, the surge current will flow through the avalanche diode and Zener. When the avalanche breakdown voltage is reached, the avalanche diode will begin to conduct. The Zener diode prevents further voltage rise by shunting the surge current to the ground. This large surge current flow will be limited by the device and the over-voltage will be clamped. Once the over-voltage is removed, the protection component will return to a normal operating condition.

In summary, the RCLAMP0506T.TCT TVS diode is an effective and efficient means for providing transient protection in a variety of applications. It offers high surge protection capability in a small package size with high speed response time. It is a cost-effective solution for protecting data and power lines from surge events.

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