MMQA, SZMMQA Quad
Common Anode Series
SC-74 Quad Monolithic
Common Anode
Transient Voltage Suppressors for ESD
Protection
http://onsemi.com
SC−74 QUAD TRANSIENT
VOLTAGE SUPPRESSOR
24 WATTS PEAK POWER
5.6 − 33 VOLTS
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.
SC−74
CASE 318F
STYLE 1
Features
• SC−74 Package Allows Four Separate Unidirectional Configurations
• Peak Power − Min. 24 W @ 1.0 ms (Unidirectional),
per Figure 5 Waveform
PIN ASSIGNMENT
• Peak Power − Min. 150 W @ 20 ms (Unidirectional),
per Figure 6 Waveform
PIN 1. CATHODE
2. ANODE
1
2
3
6
5
4
• Maximum Clamping Voltage @ Peak Pulse Current
3. CATHODE
4. CATHODE
5. ANODE
• Low Leakage < 2.0 mA
• ESD Rating of Class 3B (exceeding 16 kV) per the Human Body
6. CATHODE
Model
• SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
MARKING DIAGRAM
• Pb−Free Packages are Available*
xxxMG
G
xxx = Specific Device Code
M
= Date Cade
G
= Pb−Free Package
(Note: Microdot may be in either location)
DEVICE MARKING & ORDERING
INFORMATION
See specific marking and ordering information in the device
marking and ordering information table on page 6 of this data
sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2012
1
Publication Order Number:
February, 2012 − Rev. 10
MMQA/D