SC-74 datasheet, PDF - EEWORLD Datasheet

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SC-74: DescriptionMMQA Quad Common Anode Series; File Size66KB，6 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn

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SC-74 Overview

MMQA Quad Common Anode Series

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MMQA Quad Common

Anode Series

Preferred Devices

SC−74 Quad Monolithic

Common Anode

Transient Voltage Suppressors

for ESD Protection

This quad monolithic silicon voltage suppressor is designed for

applications requiring transient overvoltage protection capability. It is

intended for use in voltage and ESD sensitive equipment such as

computers, printers, business machines, communication systems,

medical equipment, and other applications. Its quad junction common

anode design protects four separate lines using only one package.

These devices are ideal for situations where board space is at a

premium.

Specification Features:

http://onsemi.com

SC−74 QUAD TRANSIENT

VOLTAGE SUPPRESSOR

24 WATTS PEAK POWER

5.6 − 33 VOLTS

PIN ASSIGNMENT

SC−74

PLASTIC

CASE 318F

PIN 1.

CATHODE

ANODE

CATHODE

ANODE

CATHODE

•

SC−74 Package Allows Four Separate Unidirectional Configurations

•

Peak Power − Min. 24 W @ 1.0 ms (Unidirectional),

•

per Figure 5 Waveform

Peak Power − Min. 150 W @ 20

(Unidirectional),

per Figure 6 Waveform

Maximum Clamping Voltage @ Peak Pulse Current

Low Leakage < 2.0

ESD Rating of Class N (exceeding 16 kV) per the

Human Body Model

Pb−Free Packages are Available

THERMAL CHARACTERISTICS

= 25°C unless otherwise noted)

Characteristic

Peak Power Dissipation @ 1.0 ms (Note 1)

@ T

≤

25°C

Peak Power Dissipation @ 20

(Note 2) @

≤

25°C

Total Power Dissipation on FR-5 Board

(Note 3) @ T

= 25°C

Thermal Resistance from Junction−to−Ambi-

ent

Total Power Dissipation on Alumina Sub-

strate (Note 4) @ T

= 25°C

Derate above 25°C

Thermal Resistance from Junction−to−Ambi-

ent

Junction and Storage Temperature Range

Lead Solder Temperature − Maximum (10

Second Duration)

Symbol

°P

qJA

°P

Value

150

°225

1.8

556

°300

2.4

417

°−

55 to

+150°

260

Unit

°mW°

mW/°C

°C/W

°mW

mW/°C

xxx

= Device Code

= Date Code

MARKING DIAGRAM

xxx

ORDERING INFORMATION

qJA

, T

stg

°C/W

°C

See detailed ordering and shipping information in the table on

page 5 of this data sheet.

DEVICE MARKING INFORMATION

°C

See specific marking information in the device marking table

on page 5 of this data sheet.

Preferred

devices are recommended choices for future use

and best overall value.

Semiconductor Components Industries, LLC, 2004

April, 2004 − Rev. 4

Publication Order Number:

MMQA/D

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