CM
MICRO-ISO
AUTOMOTIVE RELAY
CM RELAYS
FEATURES
Plug-in type
PC board type
RoHS compliant
• Micro-ISO type terminals
• Small size:
20 mm(L)×15 mm(W)×22 mm(H)
.787 inch(L)×.591 inch(L)×.866 inch(H)
• Wide line-up
PC board and Plug-in type, Resistor
inside type.
24V DC type is also available.
• Compact and high-capacity 35A load
switching
N.O.: 35A 14V DC, N.C.: 20A 14V DC
(Sealed type)
Min. 5 × 104
N.O.: 35A 14V DC, N.C.: 20A 14V DC
(Flux-resistant type)
Min. 105 *12V DC type
• Uses international standard ISO
terminal arrangement.
The ISO international standard terminal
arrangement is used.
TYPICAL APPLICATIONS
• Fan motor
• Heater
• Head lump
• Air Compressor
• ABS
• Blower fan
• Defogger, etc.
ORDERING INFORMATION
CM
Contact arrangement
1a: 1 Form A
1: 1 Form C
Protective construction
Nil: Sealed type
F: Flux-resistant type
Protective element
Nil: None (Standard type)
R: With resistor inside
Mounting classification
Nil: Plug-in type
P: PC board type (24 V only)
Coil voltage (DC)
12 V, 24 V
TYPES
Standard type
Contact arrangement
1 Form A
1 Form C
Coil voltage
12 V DC
24 V DC
12 V DC
24 V DC
Sealed type
Part No.
CM1a-12V
CM1a-24V
CM1-12V
CM1-24V
Plug-in type
Flux-resistant type
Part No.
CM1aF-12V
CM1aF-24V
CM1F-12V
CM1F-24V
Sealed type
Part No.
—
CM1a-P-24V
—
CM1-P-24V
PC board type
Flux-resistant type
Part No.
—
CM1aF-P-24V
—
CM1F-P-24V
Standard packing; Carton: 50 pcs.; Case: 200 pcs.
Note: Please use “CM∗∗-R-∗-∗” built-in resistor type. (Asterisks “ ∗ ” should be filled in from ORDERING INFORMATION.)
ASCTB222E 201302-T
Panasonic Corporation
Automation Controls Business Unit
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CM
RATING
1. Coil data
Nominal coil
voltage
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power
Usable voltage range
12 V DC
24 V DC
3 to 7 V DC
6 to 14 V DC
1.2 to 4.2 V DC
2.4 to 8.4 V DC
125 mA
75 mA
96Ω
320Ω
1.5 W
1.8 W
10 to 16V DC
20 to 32V DC
2. Specifications
Characteristics
Specifications
Item
12 V DC
Arrangement
Contact resistance (Initial)
Contact
1 Form A
24 V DC
1 Form C
1 Form A
Typ 2mΩ (By voltage drop 6V DC 1A)
N.O.: Max. 0.5 V
(By voltage drop
14 V DC 35 A)
N.O.: Max. 0.5 V
(By voltage drop
14 V DC 35 A)
N.C.: Max. 0.3 V
(By voltage drop
14 V DC 20 A)
Nominal switching capacity (resistive load)
N.O.: 35 A 14V DC
N.O.: 35 A 14V DC
N.C.: 20 A 14V DC
N.O.: 15 A 28V DC
Max. carrying current
(at 85°C 185°F, continuous)
N.O.: 20 A 14V DC
N.O.: 20 A 14V DC
N.C.: 10 A 14V DC
N.O.: 15 A 28V DC
Contact voltage drop
(after electrical life test)
Contact material
Rating
Mechanical
characteristics
N.O.: Max. 0.3 V
(By voltage drop
28 V DC 15 A)
N.C.: Max. 0.2 V
(By voltage drop
28 V DC 8 A)
N.O.: Max. 0.3 V
(By voltage drop
28 V DC 15 A)
Ag alloy (Cadmium free)
N.O.: 15 A 28V DC
N.C.: 8 A 28V DC
N.O.: 15 A 28V DC
N.C.: 8 A 28V DC
1.5 W, 1.7 W (with resistor inside type)
1.8 W, 2.0 W (with resistor inside type)
1 A 14V DC
1 A 24V DC
Min. 20 MΩ (at 500V DC, Measurement at same location as “Breakdown voltage” section.)
Nominal operating power
Min. switching capacity (resistive load)*1
Insulation resistance (Initial)
Electrical
characteristics
1 Form C
Between open contacts
Between contacts and coil
Operate time (at nominal voltage)
(at 20°C 68°F)
Release time (at nominal voltage)
(at 20°C 68°F)
Functional
Shock resistance
Destructive
Functional
Vibration resistance
Destructive
500 Vrms for 1 min. (Detection current: 10mA)
500 Vrms for 1 min. (Detection current: 10mA)
Breakdown voltage
(Initial)
Expected life
Mechanical (at 120 cpm)
Electrical (operating frequency: 2s ON, 2s OFF)
Conditions
Conditions for operation, transport and storage*2
Max. 10ms (excluding contact bounce time) (Initial)
Max. 10ms (excluding contact bounce time) (Initial)
Min. 200 m/s2 {20G} (Half-wave pulse of sine wave: 11ms; detection time: 10µs)
Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
10 Hz to 500 Hz, Min. 44.1 m/s2 {4.5G}
10 Hz to 2,000 Hz, Min. 44.1 m/s2 {4.5G},
Time of vibration for each direction; X, Y, Z direction: 4 hours
Min. 106
Flux-resistant type: Min. 105, Sealed type: Min. 5 × 104
Ambient temperature: –40°C to +85°C –40°F to +185°F*3,
Humidity: 5% R.H. to 85% R.H. (Not freezing and condensing at low temperature),
Air pressure: 86 to 106 kPa
Approx. 20 g .71 oz
Mass
Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the
actual load.
*2. The upper operation ambient temperature limit is the maximum temperature that can satisfy the coil temperature rise value. Please refer to “Usage ambient
condition” in CAUTIONS FOR USE OF AUTOMOTIVE RELAYS.
*3. Please inquire if you will be using the relay in a high temperature atmosphere.
REFERENCE DATA
1.-(1) Coil temperature rise (12V type, 85°C
185°F)
1.-(2) Coil temperature rise (24V type, 85°C
185°F)
Sample: CM1F-12V, 3 pcs.
Measured portion: Inside the coil
Contact carrying current: 20A, 35A
Ambient temperature: 85°C 185°F
Sample: CM1F-24V, 4 pcs.
Measured portion: Inside the coil
Contact carrying current: 0A, 15A
Ambient temperature: 85°C 185°F
30
120
100
80
20A
60
40
Temperature rise, °C
Temperature rise, °C
35A
100
80
60
40
20
20
0
0
12
14
16
Coil applied voltage, V
Panasonic Corporation
15A
0A
Coil applied voltage, VDC
120
2. Ambient temperature and operating voltage
range (12V type)
25
20
Operating voltage range
15
10
5
24
28
32
Coil applied voltage, V
Automation Controls Business Unit
0
−40 −20
Pick-up voltage
(Cold start)
0
20 40 60 8085 100 120
Ambient temperature, °C
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ASCTB222E 201302-T
CM
4. Distribution of pick-up and drop-out voltage
5. Distribution of operate time
Sample: CM1F-12V, 100pcs.
Sample: CM1F-12V, 30pcs.
* Max. 10ms standard (excluding contact bounce)
70
80
Pick-up voltage
upper limit
40
Pick-up voltage
Drop-out voltage
60
60
50
40
35
50
Quantity, n
70
Quantity, n
Ratio against the rated voltage, %
3. Ambient temperature characteristics
(Cold/initial)
40
30
25
20
30
15
30
20
20
Drop-out voltage lower limit
0
−40 −20
0
20
40
60
10
10
10
5
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
80 100
Ambient temperature, °C
0
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
Voltage, V
Time, ms
6. Distribution of release time
Sample: CM1F-12V, 30pcs.
* Max. 10ms standard (excluding contact bounce)
40
Quantity, n
35
30
25
20
15
10
5
0
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
Time, ms
Change of pick-up and drop-out voltage
Circuit
M
M
13.5V
Cooling fan motor
Change of contact resistance
10
10
9
9
8
7
6
Pick-up voltage
5
Max.
Min.
4
Drop-out voltage
3
Max.
Min.
2
Contact resistance, mΩ
Sample: CM1aF-R-12V, 6pcs.
Load: 16 A 13.5 V DC
Cooling fan motor actual load (free condition)
Operating frequency: ON 2s, OFF 6s
Ambient temperature: Room temperature
Pick-up and drop-out voltage, V
7.-(1) Electrical life test (Motor free)
8
7
6
5
4
3
1
1
0
0
0
10
20
35
No. of operations, × 104
Max.
X
Min.
2
0
10
20
No. of operations, × 104
Load current waveform
Inrush current: 85A, Steady current: 18A,
20A
500ms
ASCTB222E 201302-T
Panasonic Corporation
Automation Controls Business Unit
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35
CM
Change of pick-up and drop-out voltage
Pick-up and drop-out voltage, V
Sample: CM1aF-R-12V, 6pcs.
Load: 20A 13.5V DC
Operating frequency: ON 1s, OFF 14s
Ambient temperature: Room temperature
Change of contact resistance
10
10
9
9
8
7
6
Pick-up voltage
Max.
5
Min.
4
Drop-out voltage
3
2
Max.
Min.
8
7
6
5
4
1
0
10
The CAD data of the products with a
CAD Data
X
Min.
2
1
5
Max.
3
00
0
5
10
No. of operations, × 104
No. of operations, × 104
DIMENSIONS (mm inch)
Contact resistance, mΩ
7.-(2) Electrical life test (Halogen lamp load)
mark can be downloaded from: http://industrial.panasonic.com/ac/e/
1. Plug-in type (1 Form C)
External dimensions
CAD Data
Schematic (Bottom view)
85
87
30
87a
22
.866
86
Including resistor type also available
4.25
.167 11
.433
3.25
.128
A*
0.8
.031
4.8
.189 20
3×1.5 dia. .787
3×.059 dia. 14
.551
8
.315
2×1.75 dia.
2×.069 dia.
2.1
.083
6.3
.248
15
.591
0.8
.031
85
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
30
9
.354
87a
87
86
Sealed by epoxy resin
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
* Intervals between terminals is measured at A surface level.
2. Plug-in type (1 Form A)
External dimensions
CAD Data
Schematic (Bottom view)
85
22
.866
87
30
86
Including resistor type also available
4.25
.167 11
.433
3.25
.128
A*
0.8
.031
4.8
.189 20
3×1.5 dia. .787
3×.059 dia.
14
.551
8
.315
2×1.75 dia.
2×.069 dia.
2.1
.083
85
9
.354
30
87a
87
86
Sealed by epoxy resin
6.3
.248
15
.591
0.8
.031
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
* Intervals between terminals is measured at A surface level.
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
ASCTB222E 201302-T
CM
3. PC board type (1 Form C) ∗24V only
External dimensions
CAD Data
Schematic (Bottom view)
85
87
30
87a
23
.906
1
.039
MAX. 1.2
MAX. .047
Pre-soldering
(All terminal)
86
Including resistor type also available
2.1
4.8 .083
.189 20
.787
15
.591
8
.315
0.8
.031
3.5
.138
A*
2.5
.098
2.1
.083
0.8
.031
PC board pattern (Bottom view)
6.3
.248
15
.591
1c type only
+0.1
0
+.004
0
4.5±0.05 1.4
.177±.002 .055
85
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
30
9
.354
87a
87
86
Sealed by epoxy resin
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
1c type only
1.4+0.1
0
.055+.004
0
85
87a
9.0±0.05
.354±.002
87
30
2×2.7+0.1
0
2×.106+.004
0
86
2 (or 3)×2.4+0.1
0
2 (or 3)×.094+.004
0
15.0±0.05
.591±.002
* Dimensions (thickness and width) of terminal is measured before pre-soldering.
Intervals between terminals is measured at A surface level.
2×1.34+0.1
0
2×.053+.004
0
8.0±0.05
.315±.002
Tolerance: ±0.1 ±.004
4. PC board type (1 Form A) ∗24V only
External dimensions
CAD Data
Schematic (Bottom view)
85
87
23
.906
1
.039
MAX. 1.2
MAX. .047
Pre-soldering
(All terminal)
86
Including resistor type also available
2.1
4.8 .083
.189 20
.787
15
.591
8
.315
0.8
.031
85
9
.354
30
30
87a
87
86
Sealed by epoxy resin
2.1
.083
3.5
.138
A*
2.5
.098
0.8
.031
6.3
.248
15
.591
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
* Dimensions (thickness and width) of terminal is measured before pre-soldering.
Intervals between terminals is measured at A surface level.
NOTES
1. Soldering
Max. 350°C 662°F (solder temperature),
within 3 seconds (soldering time)
The effect on the relay depends on the
actual PC board used. Please verify the
PC board to be used.
For general cautions for use, please refer to the “CAUTIONS FOR USE OF AUTOMOTIVE RELAYS”
ASCTB222E 201302-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/