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CM1218 Low Capacitance Transient Voltage Suppressors / ESD Protectors
Features
* * * * * * Low I/O capacitance at 7pF typical In-system ESD protection to 15kV contact discharge, per the IEC 61000-4-2 international standard Two, three, four or five channels of ESD protection Compact SMT package saves board space and facilitates layout in space-critical applications Each I/O pin can withstand over 1000 ESD strikes Lead-free versions available
Product 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 15kV 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 30kV. The CM1218 is supplied in a number of compact, surface mount packages depending on the channel configuration desired. All versions of this device are available with optional lead-free finishing.
Applications
* * * High-speed consumer electronic ports ESD protection of PC ports, including USB ports, serial ports, parallel ports, IEEE1394 ports, docking ports, proprietary ports, etc. Protection of interface ports or IC pins which are exposed to high ESD levels
Electrical Schematics
CM1218-02
VN 3 4
CM1218-03
3
1
2
1 VN
2
SOT23-3 SC70-3 CM1218-04
5 4 6
SOT-143 CM1218-05
5 4
1
2 VN
3
1
2 VN
3
SOT23-5 / SC70-5
(c) 2004 California Micro Devices Corp. All rights reserved. 12/22/04
SOT23-6 / SC70-6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
1
CM1218
PACKAGE / PINOUT DIAGRAMS
Top View
CH1
Top View
CH1
Top View
CH1
Top View
CH4 CH1 VN
1
1
1
5
1
5
CH4
R4 / R4R
R4/ R4R
R2 / R2R
CH2
R2 / R2R
3
VN CH2
3
VN
VN
2
2
2
2
CH2
3
4
CH3
CH2
3
4
CH3
3-lead SOT23
3-lead SC70
5-lead SOT23
5-lead SC70
Top View
CH1 VN
Top View
CH5 CH1 VN
Top View
CH5 VN
1
6
1
6
1
4
CH3
R5 / R5R
R3 / R3R
R5 / R5R
2
5
CH4
2
5
CH4
CH2
3
4
CH3
CH2
3
4
CH3
CH1
2
3
CH2
6-lead SOT23
6-lead SC70
4-lead SOT143
Note: SOT23, SC70 and SOT143 and packages may differ in size. These drawings are not to scale.
PIN DESCRIPTIONS
LEADS (Refer to package / pinout diagrams) (Refer to package / pinout diagrams) NAME CHx VN DESCRIPTION The cathode of the respective TVS diode, which should be connected to the node requiring transient voltage protection. The anode of the TVS diodes.
Ordering Information
PART NUMBERING INFORMATION
Standard Finish Leads 3 3 4 5 5 6 6 Package SOT23-3 SC70-3 SOT143 SOT23-5 SC70-5 SOT23-6 SC70-6 Ordering Part Number1 CM1218-02ST CM1218-02SC CM1218-03SS CM1218-04ST CM1218-04SC CM1218-05ST CM1218-05SC Part Marking R2 R2 R3 R4 R4 R5 R5 Lead-free Finish Ordering Part Number1 CM1218-02SO CM1218-02S7 CM1218-03SR CM1218-04SO CM1218-04S7 CM1218-05SO CM1218-05S7 Part Marking R2R R2R R3R R4R R4R R5R R5R
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
(c) 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
12/22/04
CM1218
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER Storage Temperature Range Package Power Dissipation SC70 SOT23-3, SOT23-5, SOT23-6, SOT143 RATING -65 to +150 0.2 0.225 UNITS C W W
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature RATING -40 to +85 UNITS C
ELECTRICAL OPERATING CHARACTERISTICS (NOTE 1)
SYMBOL PARAMETER CIN Channel Input Capacitance Differential Channel I/O to GND Capacitance Reverse Stand-off Voltage CONDITIONS TA = 25C, 2.5VDC, 1MHz; Note 2 TA = 25C, 2.5VDC, 1MHz; Note 2 IR=10A, TA = 25C IR=1mA, TA = 25C ILEAK VSIG Leakage Current Small Signal Clamp Voltage Positive Clamp Negative Clamp VIN=5.0VDC, TA = 25C I = 10mA, TA = 25C I = -10mA, TA = 25C +15 +30 6.8 -0.8 5.5 6.1 1 MIN TYP 7 0.19 MAX UNITS pF pF V V
CIN
VRSO
A
V V kV kV
VESD
ESD Withstand Voltage Contact Discharge per IEC 61000- Notes 2, 4 & 5; TA = 25C 4-2 standard Human Body Model, MIL-STD-883, Notes 2, 3 & 5; TA = 25C Method 3015 Diode Dynamic Resistance Forward Conduction Reverse Conduction
Note 1: Note 2: Note 3: Note 4: Note 5:
RD
TA = 25C; Notes 2 & 3
1.1 2.7

All parameters specified at TA = -40C to +85C unless otherwise noted. These parameters guaranteed by design and characterization. Human Body Model per MIL-STD-883, Method 3015, CDischarge = 100pF, RDischarge = 1.5K, VN grounded. Standard IEC 61000-4-2 with CDischarge = 150pF, RDischarge = 330, VN grounded. These measurements performed with no external capacitor on CHX.
(c) 2004 California Micro Devices Corp. All rights reserved. 12/22/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
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.
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 0.7ms.
Typical Input VI Characteristics
(Pulse-mode measurements, pulse width = 0.7ms nominal)
1.6 1.4 1.2 1.0 0.8 0.6
RD=
1
slope
Input Current (A)
0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6
-3 -2 -1 0 1 2 3 4 5 6 7 8 9
RD=
1
slope
Input Voltage (V)
(c) 2004 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
12/22/04
CM1218
Mechanical Details
CM1218 devices are supplied in the following packages: SOT23-3, SOT143, SOT23-5, SOT23-6, SC70-3, SC70-5, and SC70-6. SOT23-3 Mechanical Specifications Dimensions for CM1218-02ST/SO devices supplied in 3-pin SOT23 packages are presented below. For complete information on the SOT23-3, see the California Micro Devices SOT23 Package Information document. Mechanical Package Diagrams
TOP VIEW b
3
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 b c D E E1 e e1 L L1 # per tape and reel Millimeters Min 0.89 0.01 0.30 0.08 2.80 2.10 1.20 Max 1.12 0.10 0.50 0.20 3.04 2.64 1.40 Min 0.0350 0.0004 0.0118 0.0031 0.1102 0.0827 0.0472 SOT23-3 (JEDEC name is TO-236) 3 Inches Max 0.0441 0.0039 0.0197 0.0079 0.1197 0.1039 0.0551 END VIEW
1 2
E1 E
e
e1
SIDE VIEW D A1 A
0.95 BSC 1.90 BSC 0.40 0.60 0.54 REF
0.0374 BSC 0.0748 BSC 0.0157 0.0236 c L1 L 0.0213 REF 3000 pieces
Controlling dimension: millimeters
Package Dimensions for SOT23-3.
(c) 2004 California Micro Devices Corp. All rights reserved. 12/22/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
5
CM1218
Mechanical Details (continued)
SC70-3 Mechanical Specifications: Dimensions for CM1218-02SC/S7 device supplied in 3-pin SC70 packages are presented below. For complete information on the SC70-3, see the California Micro Devices SC70 Package Information document. Mechanical Package Diagrams
TOP VIEW B
3
E HE
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 A2 B c D E e HE L # / tube # per tape and reel 2.00 0.26 1000 pieces* 3000 pieces* Min 0.80 0.00 0.70 0.15 0.08 1.85 1.15 0.65 BSC 2.40 0.46 c SC70 (JEDEC name is MO-203 Issue A) 3 Millimeters Max 1.10 0.10 1.00 0.30 0.25 2.25 1.35
1
2
e
e
SIDE VIEW D A2 A
A1 END VIEW
L
* This is an approximate amount which may vary.
Package Dimensions for SC70-3.
(c) 2004 California Micro Devices Corp. All rights reserved.
6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
12/22/04
CM1218
Mechanical Details (continued)
SOT143 Mechanical Specifications Dimensions for CM1218-03SS/SR devices supplied in 4-pin SOT143 packages are presented below. For complete information on the SOT143, see the California Micro Devices SOT143 Package Information document.
4
Mechanical Package Diagrams
TOP VIEW e
3
E1 E
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 b b2 c D E E1 e e1 L L1 # per tape and reel Millimeters Min 0.80 0.05 0.30 0.76 0.08 2.80 2.10 1.20 Max 1.22 0.15 0.50 0.89 0.20 3.04 2.64 1.40 Min 0.031 0.002 0.012 0.030 0.003 0.110 0.082 0.047 SOT143 4 Inches Max 0.048 0.006 0.019 0.035 0.008 0.119 0.103 0.055 END VIEW b2 b A1 SIDE VIEW D A
1 2
e1
1.92 BSC 0.20 BSC 0.4 0.6 0.54 REF
0.075 BSC 0.008 BSC 0.016 0.024 c L 0.021 REF L1
3000 pieces* Controlling dimension: millimeters
* This is an approximate amount which may vary.
Package Dimensions for SOT143.
(c) 2004 California Micro Devices Corp. All rights reserved. 12/22/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
7
CM1218
Mechanical Details (continued)
SOT23-5 Mechanical Specifications Dimensions for CM1218-04ST/SO devices supplied in 5-pin SOT23 packages are presented below. For complete information on the SOT23-5, see the California Micro Devices SOT23 Package Information document.
5
Mechanical Package Diagrams
TOP VIEW e1 e
4
E1 E
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 b c D E E1 e e1 L # per tape and reel Millimeters Min -0.00 0.30 0.08 2.75 2.60 1.45 Max 1.45 0.15 0.50 0.22 3.05 3.00 1.75 Min -0.000 0.012 0.003 0.108 0.102 0.057 SOT23-5 (JEDEC name is MO-178) 5 Inches Max 0.057 0.006 0.020 0.009 0.120 0.118 0.069
END VIEW SIDE VIEW 1 2 3
b
D A
A1
0.95 BSC 1.90 BSC 0.60 REF
0.0374 BSC 0.0748 BSC 0.0236 REF c
3000 pieces* Controlling dimension: inches
L1
* This is an approximate amount which may vary.
Package Dimensions for SOT23-5.
(c) 2004 California Micro Devices Corp. All rights reserved.
8
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
12/22/04
CM1218
Mechanical Details (continued)
SC70-5 Mechanical Specifications: Dimensions for CM1218-04SC/S7 devices supplied in 5-pin SC70 packages are presented below. For complete information on the SC70-5, see the California Micro Devices SC70 Package Information document. Mechanical Package Diagrams
TOP VIEW e
5
e
4
E HE
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 A2 B c D E e HE L # / tube # / tape and reel 2.00 0.26 1000 pieces* 3000 pieces* Min 0.80 0.00 0.70 0.15 0.08 1.85 1.15 0.65 BSC 2.40 0.46 c SC70-5 (JEDEC name is MO-203 Issue A) 5 Millimeters Max 1.10 0.10 1.00 0.30 0.25 2.25 1.35
1
2
3
B SIDE VIEW D A2 A
A1 END VIEW
L
* This is an approximate amount which may vary.
Package Dimensions for SC70-5
(c) 2004 California Micro Devices Corp. All rights reserved. 12/22/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
9
CM1218
Mechanical Details (continued)
SOT23-6 Mechanical Specifications: Dimensions for CM1218-05ST/SO devices supplied in 6-pin SOT23 packages are presented below. For complete information on the SOT23-6, see the California Micro Devices SOT23 Package Information document.
6
Mechanical Package Diagrams
TOP VIEW e1
5
e
4
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 b c D E E1 e e1 L # per tape and reel Millimeters Min -0.00 0.30 0.08 2.75 2.60 1.45 Max 1.45 0.15 0.50 0.22 3.05 3.00 1.75 Min -0.000 0.012 0.003 0.108 0.102 0.057 SOT23 (JEDEC name is MO-178) 6 Inches Max 0.057 0.006 0.020 0.009 0.120 0.118 0.069
Pin 1 Marking
1 2 3
E1 E
b SIDE VIEW D A
A1 END VIEW
0.95 BSC 1.90 BSC 0.60 REF
0.0374 BSC 0.0748 BSC 0.0236 REF c
3000 pieces* Controlling dimension: inches
L1 L
* This is an approximate amount which may vary.
Package Dimensions for SOT23-6.
(c) 2004 California Micro Devices Corp. All rights reserved.
10 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
12/22/04
CM1218
Mechanical Details (continued)
SC70-6 Mechanical Specifications: Dimensions for CM1218-05SC/S7 devices supplied in 6-pin SC70 packages are presented below. For complete information on the SC70-6, see the California Micro Devices SC70 Package Information document.
Pin 1 Marking
Mechanical Package Diagrams
TOP VIEW e
6 5
e
4
E1 E
1 2 3
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 A2 B c D E e HE L # / tube # / tape and reel 2.00 0.26 1000 pieces* 3000 pieces* Min 0.80 0.00 0.70 0.15 0.08 1.85 1.15 0.65 BSC 2.40 0.46 c SC70-6 (JEDEC name is MO-203 Issue A) 6 Millimeters Max 1.10 0.10 1.00 0.30 0.25 2.25 1.35
B
SIDE VIEW D A2 A
A1 END VIEW
L
* This is an approximate amount which may vary.
Package Dimensions for SC70-6.
(c) 2004 California Micro Devices Corp. All rights reserved. 12/22/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
11

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