PESD3V3L1BAF Circuit Protection

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Transient Voltage Suppression (TVS) Diodes are designed specifically to protect against transient overvoltage conditions, ESD (electrostatic discharge) events and other destructive phenomena. PESD3V3L1BAF is a bidirectional TVS diode with an ultra-low profile system. It is designed to protect high speed data interfaces such as USB, HDMI and other high-speed signals from ESD and other overvoltage transients.

Application Field

The PESD3V3L1BAF is designed to protect high speed data interfaces such as USB, HDMI, FireWire, SATA and other high-speed signals from damage caused by ESD events. These devices provide the most cost-effective ESD protection solution for portable devices such as cell phones, cameras, GPS units, PDAs, etc. It can also be used to protect digital data lines in automotive systems.

Working Principle

PESD3V3L1BAF uses an ultra-low-profile system so that it can fit into small electronic systems and be used in tight spaces or confined areas. It is a bidirectional TVS diode which can sense and clamp overvoltage on both sides of the device. It can operate over a wide voltage range, from 2.1 to 18 V with a reverse breakdown voltage of 6.6 V. It can withstand an ESD strike of up to 2 kV (IEC 801-2 Level 4) with very low clamping voltage – below 6.6 V on VDD side and 5.3 V on VDDB side. It also features low capacitance, which prevents data signal distortion on high-speed data lines.

The PESD3V3L1BAF is built using low voltage transistors in a low-leakage, low-profile package. The low-leakage characteristics of this device ensure a longer hold-off time thus improving its reliability. In addition, the device offers a fast response time, typically less than 1ns, allowing it to respond quickly to transient surges.

Conclusion

The PESD3V3L1BAF is an excellent choice for ESD protection in high-speed data interfaces such as USB, HDMI, FireWire, SATA and other high-speed signals. It uses an ultra-low profile system to fit into tight spaces, has a reverse breakdown voltage of 6.6 V, can withstand an ESD strike of up to 2 kV (IEC 801-2 Level 4) and has a fast response time of typically less than 1ns. All these features make it ideal for use in portable and automotive applications.

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