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SMS05T1 Series
SC?74 Quad Transient
Voltage Suppressor
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 and
other applications. This quad device provides superior surge
protection over current quad Zener MMQA series by providing up to
350 watts peak power.
Features
http://onsemi.com
SC?74 QUAD TRANSIENT
VOLTAGE SUPPRESSOR
350 WATTS PEAK POWER
5 VOLTS
? SC-74 Package Allows Four Separate Unidirectional Configurations
? Peak Power ? 350 W, 8 x 20 m S
? ESD Rating of Class N (Exceeding 25 kV) per
the Human Body Model
? ESD Rating:
6
1
SC?74
CASE 318F
STYLE 1
IEC 61000?4?2 (ESD) 15 kV (air) 8 kV (contact)
IEC 61000?4?4 (EFT) 40 A (5/50 ns)
IEC 61000?4?5 (lightning) 23 A (8/20 m s)
? UL Flammability Rating of 94 V?0
? Pb?Free Packages are Available
Typical Applications
? Hand Held Portable Applications such as Cell Phones, Pagers,
Notebooks and Notebook Computers
MAXIMUM RATINGS
MARKING DIAGRAM
xxx M G
G
1
xxx = Specific Device Code
M = Date Code*
G = Pb?Free Package
(Note: Microdot may be in either location)
Rating
Peak Power Dissipation
8 x 20 m S @ T A = 25 ° C (Note 1)
Symbol
P pk
Value
350
Unit
W
*Date Code orientation and/or position may
vary depending upon manufacturing location.
6
5
Total Power Dissipation on FR?5 Board
@ T A = 25 ° C (Note 2)
Derate Above 25 ° C
Thermal Resistance,
Junction?to?Ambient
Junction and Storage
Temperature Range
Lead Solder Temperature
P D
R q JA
T J , T stg
T L
225
1.8
556
?55 to +150
260
mW
mW/ ° C
° C/W
° C
° C
1
2
3
PIN ASSIGNMENT
PIN 1. CATHODE
2. ANODE
3. CATHODE
4. CATHODE
5. ANODE
4 6. CATHODE
Maximum 10 Seconds Duration
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
1. Non?repetitive current pulse 8 x 20 m S exponential decay waveform
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 2 of
this data sheet.
2. FR?5 = 1.0 x 0.75 x 0.62 in.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
? Semiconductor Components Industries, LLC, 2006
November, 2006 ? Rev. 7
1
Publication Order Number:
SMS05T1/D
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