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USBLC6: Low Capacitance TVS Diode

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The USBLC6 is a monolithic Application-Specific TVS diode array dedicated to ESD protection of high-speed interfaces such as USB2.0, Ethernet links, and Video lines. USBLC6 has a very low leakage current (150nA Max.), that makes it suitable for battery-powered devices.


Pin Configuration

Pin No.

Pin Name



I/O 1

 Input/Output Pin



Ground Pin


I/O 2

 Input/Output Pin


I/O 2

 Input/Output Pin



Power Supply Pin


I/O 1

 Input/Output Pin



  • Current - Peak Pulse: 5 A
  • Leakage Current: 150 nA
  • Capacitance: 2.5pF typical (I/O to I/O)
  • Working Voltage: 5.25 V
  • Breakdown Voltage: 6 V
  • Clamping Voltage: 17 V
  • Operating Temperature Range: -40 to 125 °C
  • Available in SOT-23-6 Package


Note: Complete Technical Details can be found at the USBLC6 datasheet given at the end of this page.


Alternative for USBLC6: RLCAMP2504P, SRV05

Other TVS Diode Arrays: AQ1003, AQ1005, SP1305


Overview of USBLC6

For sensitive semiconductor components and common electronic products, protection from   ESD, EFT and lightning is necessary, but incorporating diode protection can introduce capacitance which reduces the bandwidth of data transmission lines. The USBLC6 is an integrated ESD protection diode array that can incorporates multiple diodes, can protect two data lines and is also capable of protecting the bus voltage of that transmission line. USBLC6 has a low capacitance of 2.5pF and low leakage current of 150nA.


USBLC6 diode array has four surge rated, low capacitance steering diode and a Zener diode in a single package to protect each I/O pin against ESD and high surge events. Internal circuit diagram for USBLC6 is shown below.

Internal circuit diagram for USBLC6


When the transient condition occurs, steering diodes direct the transient to ground or positive side of power supply.



  • USB 2.0 ports up to 480 Mb/s (high speed)
  • Compatible with USB 1.1 low and full speed
  • Ethernet port: 10/100 Mb/s
  • SIM card protection
  • Video line protection
  • Portable electronics


2D representation (SOT-23)

USBLC6 IC 2D-Model

Component Datasheet

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