SRV05-4: Low Capacitance TVS Diode Array

23 September 2019 - 0 Comments

SRV05-4: Low Capacitance TVS Diode Array

SRV05 Pinout

The SRV05 is a low capacitance TVS (Transient Voltage Suppressor) array specifically designed to protect sensitive semiconductor components that are connected to transmission and data lines from overvoltage caused by electrostatic discharge, electric fast transients, and lightning. Operating voltage for SRV05 is 5V.

Pin Configuration

Pin No.	Pin Name	Description
1	I/O	Input/Output Pin
2	GND	Ground Pin
3	I/O	Input/Output Pin
4	I/O	Input/Output Pin
5	Vcc	Power Supply Pin
6	I/O	Input/Output Pin

Features

Current - Peak Pulse : 20 A
Leakage Current: 0.1 µA
Capacitance: 1.5pF typical (I/O to I/O)
Working Voltage: 5 V
Breakdown Voltage: 6 V
Clamping Voltage: 17.5 V
Operating Temperature Range: -55 to 125 °C
Available in SOT-23-6 Package

Note: Complete Technical Details can be found at the SRV05 datasheet given at the end of this page.

Alternative for SRV05: RCLAMP2504P, RCLAMP3304P

Other TVS Diode Arrays: AQ1003, AQ1005, SP1305

Overview of SRV05

SRV05 TVS diode array has eight surge rated, low capacitance steering diode and a TVS diode in a single package to protect each I/O pin against ESD and high surge events. Steering diodes are connected in common anode format in four groups. Internal circuit diagram for SRV05 is shown below.

Internal circuit diagram for SRV05

When the transient condition occurs, steering diodes direct the transient to ground or positive side of power supply and TVS diode protects power line from overvoltage by protecting any downstream component.

How to Use SRV05

The SRV05 is designed to protect four data lines from transient over voltages caused by electrostatic discharge and lightning by clamping them to a fixed reference. Data lines are connected to 1, 3, 4 and 6 pins. 2nd pin of SRV05 is connected to ground and 5th pin is connected to positive side of power supply. So whenever the voltage on protected data lines exceeds the reference voltage the steering diodes directs the current away from sensitive circuitry.

How to Use SRV05