CM
AUTOMOTIVE
MICRO-ISO 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
• EPS
• 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
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 201203-T1
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
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
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
1 Form C
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 12V 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
24 V DC
1 Form C
1 Form A
Typ 2mΩ (By voltage drop 6V DC 1A)
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)
1-(2). Coil temperature rise (24V type)
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
80
20A
60
40
20
0
Temperature rise, °C
Temperature rise, °C
35A
100
100
80
15A
0A
60
40
14
16
Coil applied voltage, V
Panasonic Corporation
0
24V type
12V type
50
40
30
20
10
20
12
(N.O. side Room temperature)
60
120
Switching voltage, VDC
120
2. Max. switching capability (Resistive load,
initial)
24
28
32
Coil applied voltage, V
Automation Controls Business Unit
0
0
10
industrial.panasonic.com/ac/e/
20
30
40
50
Switching current, A
ASCTB222E 201203-T1
CM
20
Operation range
15
10
5
0
−40 −20
70
80
Pick-up voltage
upper limit
70
60
50
40
20
20
Drop-out voltage lower limit
10
0
20
40
60
Ambient temperature, °C
Voltage, V
7. Distribution of release time
Sample: CM1F-12V, 30pcs.
* Max. 10ms standard (excluding contact bounce)
40
40
35
35
30
30
Quantity, n
Quantity, n
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
Sample: CM1F-12V, 30pcs.
* Max. 10ms standard (excluding contact bounce)
20
40
30
6. Distribution of operate time
25
50
30
0
−40 −20
20 40 60 8085 100 120
Ambient temperature, °C
Pick-up voltage
Drop-out voltage
60
10
Pick-up voltage
(Cold start)
0
Sample: CM1F-12V, 100pcs.
Quantity, n
25
5. Distribution of pick-up and drop-out voltage
25
20
15
15
10
10
5
5
0
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
0
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
Time, ms
Time, ms
Change of pick-up and drop-out voltage
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
Circuit
M
M
13.5V
Pick-up and drop-out voltage, V
8-(1). Electrical life test (Motor free)
Change of contact resistance
10
10
9
9
8
7
6
Pick-up voltage
Max.
Min.
5
4
Drop-out voltage
3
Max.
Min.
2
Cooling fan motor
8
7
6
5
4
3
Max.
X
Min.
2
1
1
0
Contact resistance, mΩ
Coil applied voltage, VDC
30
4. Ambient temperature characteristics
(Cold/initial)
Ratio against the rated voltage, %
3. Ambient temperature and operating voltage
range (12V type)
0
10
20
No. of operations, × 10
35
4
0
0
10
20
No. of operations, × 104
Load current waveform
Inrush current: 85A, Steady current: 18A,
20A
500ms
ASCTB222E 201203-T1
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
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
8-(2). Electrical life test (Halogen lamp load)
mark can be downloaded from: http://industrial.panasonic.com/ac/e/
1. Micro-ISO 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. Micro-ISO 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 201203-T1
CM
3. Micro-ISO PC board type (1 Form C)
External dimensions
CAD Data
Schematic (Bottom view)
85
87
30
87a
23
.906
1
.039
MAX. 1.2
MAX. .047
86
Including resistor type also available
Pre-soldering
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
1.4+0.1
0
.055+.004
0
4.5±0.05 1.4
.055
.177±.002
85
1c type only
+0.1
0
+.004
0
87
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
30
2-2.7+0.1
0
2-.106+.004
0
87a
9.0±0.05
.354±.002
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
86
2 (or 3)-2.4+0.1
0
2 (or 3)-.094+.004
0
15.0±0.05
.591±.002
2-1.4+0.1
0
2-.055+.004
0
8.0±0.05
.315±.002
* Dimensions (thickness and width) of terminal is measured before pre-soldering.
Intervals between terminals is measured at A surface level.
4. Micro-ISO PC board type (1 Form A)
External dimensions
CAD Data
Schematic (Bottom view)
85
87
23
.906
1
.039
MAX. 1.2
MAX. .047
86
Including resistor type also available
Pre-soldering
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.
For Cautions for Use, see Relay Technical Information.
ASCTB222E 201203-T1
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/