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©2011 Littelfuse, Inc.

Specifications are subject to change without notice.

Please refer to

Revision: April 14, 2011

SP720 Lead-Free/Green Series

General Purpose ESD Protection - SP720 Series

Description

Features

- MIL STD 3015.7................................................. 15kV

- IEC 61000-4-2, Direct Discharge,

- Single Input .......................................... 4kV (Level 2)

- Two Inputs in Parallel ............................ 8kV (Level 4)

- IEC 61000-4-2, Air Discharge...............15kV (Level 4)

- IEC 61000-4-5 (8/20μs) ....................................... ±3A

- Single Pulse, 100μs Pulse Width ........................ ±2A

- Single Pulse, 4μs Pulse Width ............................ ±5A

- Single-Ended Voltage Range to ........................ +30V

- Differential Voltage Range to ............................ ±15V

.............................................. 2ns Risetime

................................. 1nA at 25º (Typ)

....................................... 3pF (Typ)

....................-40ºC to 105ºC

Applications

The SP720 is an array of SCR/Diode bipolar structures for

ESD and over-voltage protection to sensitive input circuits.

The SP720 has 2 protection SCR/Diode device structures

per input. A total of 14 available inputs can be used to

protect up to 14 external signal or bus lines. Over-voltage

protection is from the IN (pins 1-7 and 9-15) to V+ or V-.

The SCR structures are designed for fast triggering at a

threshold of one +V

a -V

a clamp to V+ is activated if a transient pulse causes the

input to be increased to a voltage level greater than one

V

pulse, one V

Standard ESD Human Body Model (HBM) Capability is:

Input Protection

Protection

Pinout

Functional Block Diagram

V+ 16

1

8

2

3 - 7

9 - 15

IN

IN

IN

V-

RoHS

SP720 (PDIP, SOIC)

TOP VIEW

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

IN

IN

IN

IN

IN

IN

V-

IN

V+

IN

IN

IN

IN

IN

IN

IN

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.

SP720 Series 3pF 4kV Rail Clamp Array