General Purpose ESD Protection - SP712

Description

Applications

The SP712 TVS Diode Array is designed to protect RS-485

applications with asymmetrical working voltages (-7V to

12V) from damage due to electrostatic discharge (ESD),

electrical fast transients (EFT), and lightning induced surges.

The SP712 can absorb repetitive ESD strikes above the

maximum level specified in IEC 61000-4-2 international

standard without performance degradation and safely

dissipate up to 20A of 8/20us induced surge current (IEC

61000-4-5) with very low clamping voltages.

Features

• ESD, IEC 61000-4-2,

±30kV contact, ±30kV air

• EFT, IEC 61000-4-4, 50A

(5/50ns)

• Lightning, IEC 61000-

(t

• Working Voltages: -7V to

12V

• Low clamping voltage

• Low leakage current

• Halogen free, Lead free

and RoHS compliant

• Moisture Sensitivity

Level(MSL -1)

• AEC-Q101 qualified

• RS-485

• Fieldbus

• Modbus

• Profibus

• DMX512

• Security Systems

• Automated Teller

Machines (ATMs)

• Lighting Control - DALI

• Communication

Equipments

Pinout and Functional Block Diagram

Life Support Note:

Not Intended for Use in Life Support or Life Saving Applications

The products shown herein are not designed for use in life sustaining or life saving

applications unless otherwise expressly indicated.

©2020 Littelfuse, Inc.

Specifications are subject to change without notice.

Revision: 01/13/20

SP712Series640WAsymmetricalTVSDiodeArray

1

2

3

7V

12V

7V

12V

RS-485 Application Example

IC

A

B

RS-485 Port

Receiver

SM712

GND

SP712