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
• SC-74 Package Allows Four Separate Unidirectional Configurations
• Peak Power − 350 W, 8 x 20 mS
• ESD Rating of Class N (Exceeding 25 kV) per
the Human Body Model
• ESD Rating:
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 ms)
• 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
Rating Symbol Value Unit
Peak Power Dissipation
8 x 20 mS @ TA = 25°C (Note 1)
Total Power Dissipation on FR−5 Board
@ TA = 25°C (Note 2)
Derate Above 25°C
Thermal Resistance,
Junction−to−Ambient
Junction and Storage
Temperature Range
Lead Solder Temperature
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 mS exponential decay waveform
2. FR−5 = 1.0 x 0.75 x 0.62 in.
P
P
R
TJ, T
T
pk
D
q
JA
− 55 to +150 °C
stg
L
350 W
225
1.8
556 °C/W
260 °C
mW
mW/°C
http://onsemi.com
SC−74 QUAD TRANSIENT
VOLTAGE SUPPRESSOR
350 WATTS PEAK POWER
5 VOLTS
6
1
MARKING DIAGRAM
xxx M G
1
xxx = Specific Device Code
M = Date Code*
G = Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation and/or position may
vary depending upon manufacturing location.
PIN ASSIGNMENT
1
2
3
6
5
4
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 2 o
this data sheet.
SC−74
CASE 318F
STYLE 1
G
PIN 1. CATHODE
2. ANODE
3. CATHODE
4. CATHODE
5. ANODE
6. CATHODE
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 7
See detailed ordering and shipping information in the package
ORDERING INFORMATION
dimensions section on page 2 of this data sheet.
1 Publication Order Number:
SMS05T1/D
SMS05T1 Series
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted)
Symbol Parameter
I
I
F
I
V
R
F
I
T
I
PP
Uni−Directional
RSM
I
RSM
V
RSM
(8x20 ms)
Capacitance
@ 0 Volt Bias,
)
V
1 MHz
(pF)
V
QV
I
PP
V
RWM
I
V
I
I
V
Z
I
ZK
Z
Maximum Reverse Peak Pulse Current
Clamping Voltage @ I
C
PP
Working Peak Reverse Voltage
Maximum Reverse Leakage Current @ V
R
Breakdown Voltage @ I
BR
Test Current
T
Maximum Temperature Coefficient of V
BR
Forward Current
F
Forward Voltage @ I
F
Maximum Zener Impedance @ I
ZT
F
Reverse Current
Maximum Zener Impedance @ I
ZK
RWM
T
BR
ZT
ZK
VCV
BR
V
RWM
ELECTRICAL CHARACTERISTICS − UNIDIRECTIONAL
Max
Reverse
Device
Device
Marking
Breakdown
Voltage
VBR(V) I
Min Nom Max (mA)
T
Leakage
Current
IRV
(mA)
SMS05T1 5V0 6.0 − 7.2 1.0 20 5.0 5.0 9.8 23 15.5 250 400
SMS12T1 12V 13.3 − 15 1.0 1.0 12 5.0 19.0 15 23.0 80 150
SMS15T1 15V 16.7 − 18.5 1.0 1.0 15 5.0 24.0 12 29.0 60 125
SMS24T1 24V 26.7 − 32 1.0 1.0 24 5.0 40.0 8 44.0 40 75
Max Reverse Voltage
(Clamping Voltage)
At Specified Reverse
Surge Current (I
I
RSM
(8x20 ms)
R
V
RSM
(8x20 ms)
Max Reverse Voltage
(Clamping Voltage)
At Specified Reverse
)
RSM
Surge Current (I
(8x20 ms)
(V) (A) (V) (A) (V) Min Max
ORDERING INFORMATION
Device Package Shipping
SMS05T1 SC−74
SMS05T1G SC−74
3000 / Tape & Reel
(Pb−Free)
SMS12T1 SC−74
SMS12T1G SC−74
3000 / Tape & Reel
(Pb−Free)
SMS15T1 SC−74
SMS15T1G SC−74
3000 / Tape & Reel
(Pb−Free)
SMS24T1 SC−74
SMS24T1G SC−74
3000 / Tape & Reel
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
†
http://onsemi.com
2