CM1218
Low Capacitance Transient
Voltage Suppressors / ESD
Protectors
Description
The CM1218 family of devices features transient voltage suppressor
arrays that provide a very high level of protection for sensitive
electronic components which may be subjected to electrostatic
discharge (ESD).
All pins of the CM1218 are rated to withstand
±15
kV ESD pulses
using the IEC 61000−4−2 contact discharge method. Using the
MIL−STD−883D (Method 3015) specification for Human Body
Model (HBM) ESD, all pins are protected from contact discharges of
greater than
±30
kV.
The CM1218 is supplied in a number of compact, surface mount
packages depending on the channel configuration desired.
Features
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SOT23−3
SO SUFFIX
CASE 419AH
SOT23−5
SO SUFFIX
CASE 527AH
SOT23−6
SO SUFFIX
CASE 527AJ
6
SOT143
SR SUFFIX
CASE 527AF
SOT−553
SE SUFFIX
CASE 463B
1
SOT−563
SE SUFFIX
CASE 463A
•
Low I/O Capacitance at 7 pF Typical
•
Two, Three, Four or Five Channels of ESD Protection
•
In−system ESD Protection to
±15
kV Contact Discharge, per the
IEC 61000−4−2 International Standard
•
Compact SMT Package Saves Board Space and Facilitates Layout in
Space−critical Applications
•
Each I/O Pin Can Withstand over 1000 ESD Strikes
•
These are Pb−Free Devices
Applications
SC70−3
S7 SUFFIX
CASE 419AB
SC70−5
S7 SUFFIX
CASE 419AC
SC70−6
S7 SUFFIX
CASE 419AD
BLOCK DIAGRAMS
(see page 2)
•
High−speed Consumer Electronic Ports
•
ESD Protection of PC Ports, Including USB Ports, Serial Ports,
MARKING DIAGRAM
XXX MG
G
1
xxx M
G
1
Parallel Ports, IEEE1394 Ports, Docking Ports, Proprietary Ports, etc.
•
Protection of Interface Ports or IC Pins which are Exposed to High
ESD Levels
XXX
= Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
(see the last page of this document)
©
Semiconductor Components Industries, LLC, 2011
February, 2011
−
Rev. 4
1
Publication Order Number:
CM1218/D
CM1218
BLOCK DIAGRAMS
V
N
6
5
4
6
5
4
1
2
V
N
3
1
2
V
N
3
CM1218−F4
V
N
3
4
3
CM1218−05
5
4
1
2
1
V
N
2
1
2
V
N
3
CM1218−02
CM1218−03
CM1218−04
PACKAGE / PINOUT DIAGRAMS & PIN DESCRIPTIONS
Top View
CH1
1
R2R
2
3−lead SOT23
Top View
CH1
V
N
CH2
1
R5R
2
3
6
5
4
CH5
CH4
CH3
CH1
V
N
CH2
3
V
N
CH2
2
3−lead SC70
Top View
1
R5R
2
3
6
5
4
CH5 CH1
CH4
V
N
CH1
Top View
1
R2R
3
V
N
CH1
V
N
CH2
Top View
1
R4R
CH3
2
3
5
CH4
CH1
V
N
4
CH2
Top View
1
R4R
2
3
5
CH4 CH1
V
N
4
CH3 CH2
Top View
1
R4R
CH3
2
3
5
CH4
CH2
4
5−lead SOT23
Top View
1
R4F
2
3
6
5
4
CH4
V
N
CH3
CH1
V
N
CH2
5−lead SC70
Top View
1
R5R
2
3
6
5
4
CH5
CH4
V
N
5−lead SOT−553
Top View
1
R3R
2
4
CH3
CH3 CH2
CH3 CH1
3
CH2
6−lead SOT23
6−lead SC70
6−lead SOT−563
(CM1218−F4SE)
6−lead SOT−563
(CM1218−05SE)
4−lead SOT143
Rxx
CHx
V
N
= Specific Device Code
= The Cathode of the Respective TVS Diode, which
should be connected to the node requiring transient
voltage protection
= The Anode of the TVS Diodes
Note: SOT23, SC70 and SOT143 and packages may differ in size. These drawings are not to scale.
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2
CM1218
Specifications
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Storage Temperature Range
Package Power Dissipation
SC70
SOT23−3, SOT23−5, SOT23−6, SOT143
SOT−553, SOT−563
Rating
−65
to +150
0.2
0.225
0.15
Units
°C
W
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.
Table 2. STANDARD OPERATING CONDITIONS
Parameter
Operating Temperature
Rating
−40
to +85
Units
°C
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(Note 1)
Symbol
C
IN
DC
IN
V
RSO
I
LEAK
V
SIG
Parameter
Channel Input Capacitance
Differential Channel I/O to GND Capacitance
Reverse Stand−off Voltage
Conditions
T
A
= 25°C, 2.5 VDC, 1 MHz
T
A
= 25°C, 2.5 VDC, 1 MHz
I
R
= 10
mA,
T
A
= 25°C
I
R
= 1 mA, T
A
= 25°C
Leakage Current
Small Signal Clamp Voltage
Positive Clamp
Negative Clamp
ESD Withstand Voltage
Contact Discharge per IEC 61000−4−2 standard
Human Body Model, MIL−STD−883, Method 3015
Diode Dynamic Resistance
Forward Conduction
Reverse Conduction
V
IN
= 5.0 VDC, T
A
= 25°C
I = 10 mA, T
A
= 25°C
I =
−10
mA, T
A
= 25°C
T
A
= 25°C; Notes 3 & 4
T
A
= 25°C; Notes 2 & 4
T
A
= 25°C; Note 2
1.1
2.7
W
±15
±30
6.8
−0.8
5.5
6.1
1
Min
Typ
7
0.19
Max
Units
pF
pF
V
V
mA
V
V
ESD
kV
R
D
1
2
3
4
All parameters specified at T
A
=
−40°C
to +85°C unless otherwise noted.
Human Body Model per MIL−STD−883, Method 3015, C
Discharge
= 100 pF, R
Discharge
= 1.5 KW, V
N
grounded.
Standard IEC 61000−4−2 with C
Discharge
= 150 pF, R
Discharge
= 330
W,
V
N
grounded.
These measurements performed with no external capacitor on CH
X
.
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3
CM1218
Performance Information
Diode Capacitance
Typical diode capacitance with respect to positive TVS cathode voltage (reverse voltage across the diode) is given in
Figure 1. Diode Capacitance vs. Reverse Voltage.
Capacitance (Normalized)
DC Voltage
Figure 1. Diode Capacitance vs. Reverse Voltage
Typical High Current Diode Characteristics
Measurements are made in pulsed mode with a nominal pulse width of 0.7 ms.
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4
CM1218
Mechanical Details
The CM1218 devices are supplied in the following packages: SOT23−3, SOT23−5, SOT23−6, SOT143, SOT553, SOT563,
SC70−3, SC70−5, and SC70−6.
Table 4. TAPE AND REEL SPECIFICATIONS
Part Number
CM1218−02SO
CM1218−04SO
CM1218−05SO
CM1218−03SR
CM1218−04SE
CM1218−F4SE
CM1218−05SE
CM1218−02S7
CM1218−04S7
CM1218−05S7
Package
SOT23−3
SOT23−5
SOT23−6
SOT143
SOT553
SOT563
SC70−3
SC70−5
SC70−6
Package Size (mm)
2.92 X 2.37 X 1.01
2.90 X 2.80 X 1.45
2.90 X 2.80 X 1.45
2.92 X 2.37 X 1.01
1.60 X 1.60 X 0.55
1.60 X 1.60 X 0.55
2.05 X 1.25 X 0.95
2.05 X 1.25 X 0.95
2.05 X 1.25 X 0.95
Pocket Size (mm)
B
0
X A
0
X K
0
2.77 X 3.15 X 1.22
3.20 X 3.20 X 1.40
3.20 X 3.20 X 1.40
2.60 X 3.15 X 1.20
1.78 X 1.78 X 0.69
1.78 X 1.78 X 0.69
2.40 X 2.40 X 1.19
2.25 X 2.40 X 1.20
2.25 X 2.40 X 1.20
Tape Width
W
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
Reel
Diameter
178 mm (7″)
178 mm (7″)
178 mm (7″)
178 mm (7″)
178 mm (7″)
178 mm (7″)
178 mm (7″)
178 mm (7″)
178 mm (7″)
Qty per
Reel
3000
3000
3000
3000
5000
5000
3000
3000
3000
P
0
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
P
1
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
4 mm
Top
Cover
Tape
P
o
10 Pitches Cumulative
Tolerance On Tape
±0.2
mm
A
o
+
K
o
For Tape Feeder Reference
Only Including Draft,
Concerning around B.
Embossment
B
o
+
+
W
P
1
User Direction of Feed
Center Lines
of Cavity
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5
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