1. General description

Ultra low capacitance bidirectional ElectroStatic Discharge (ESD) protection diode in a small

SOT23 Surface-Mounted Device (SMD) plastic package, designed to protect one signal line from

the damage caused by ESD and other transients.

The device may also be used for unidirectional ESD protection of up to two signal lines.

2. Features and benefits

• Bidirectional ESD protection of one line

• Unidirectional ESD protection of up to two lines

• Ultra low diode capacitance: Cd = 0.9 pF

• Very low leakage current: IRM = 1 nA

• ESD protection up to 9 kV

• IEC 61000-4-2; level 4 (ESD)

3. Applications

• USB interfaces

• Antenna protection

• Radio Frequency (RF) protection

• 10/100/1000 Mbit/s Ethernet

• FireWire

• Asymmetric Digital Subscriber Line (ADSL)

• High-speed data lines

• Subscriber Identity Module (SIM) card protection

• Computers, peripherals and printers

• Cellular handsets and accessories

• Portable electronics

• Communication systems

• Audio and video equipment