CB
MINI-ISO
AUTOMOTIVE RELAY
RoHS compliant
CB RELAYS
FEATURES
TYPICAL APPLICATIONS
• This relay has an Mini-ISO
(International Organization for
Standardization) terminal
arrangement.
• Relay is compact and high capacity
(40 A).
Compact form factor realized with space
saving 22 × 26 mm .866 × 1.024 inch
small base area thanks to integrated
bobbin and base construction. Features
high switching capacity of 40 A
• Features high thermal resistance of
125°C 257°F (heat resistant type).
Heat resistant type is available that can
withstand use near engines. (40 A
switching capacity)
• Built-in resistor type is also
available.
• Automobiles
Headlights, Cell motors, Air conditioners,
ABS, EPS, etc.
• Construction equipment
• Agricultural equipment, Conveyor,
etc.
ORDERING INFORMATION
CB
Contact arrangement
1a: 1 Form A
1: 1 Form C
Contact rating
Nil: Standard type
H: High contact capacity type
Protective construction
Nil: Sealed type
F: Flux-resistant type
Heat resistant of types
Nil: Standard type
T: Heat resistant type
Protective element
Nil: None
R: with resistor inside
Mounting classification
Nil: Plug-in type
P: PC board type
M: Bracket type
Coil voltage (DC)
12V, 24 V
ASCTB220E 201208-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
CB
TYPES
1. Standard type
Contact arrangement
Mounting classification
PC board type
1 Form A
Plug-in type
Bracket type
PC board type
1 Form C
Plug-in type
Bracket type
PC board type*
High contact capacity
(1 Form A)
Plug-in type
Bracket type
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
Sealed type
Part No.
CB1a-P-12V
CB1a-P-24V
CB1a-12V
CB1a-24V
CB1a-M-12V
CB1a-M-24V
CB1-P-12V
CB1-P-24V
CB1-12V
CB1-24V
CB1-M-12V
CB1-M-24V
Flux-resistant type
Part No.
CB1aF-P-12V
CB1aF-P-24V
CB1aF-12V
CB1aF-24V
CB1aF-M-12V
CB1aF-M-24V
CB1F-P-12V
CB1F-P-24V
CB1F-12V
CB1F-24V
CB1F-M-12V
CB1F-M-24V
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
CB1aH-P-12V
CB1aH-P-24V
CB1aH-12V
CB1aH-24V
CB1aH-M-12V
CB1aH-M-24V
CB1aHF-P-12V
CB1aHF-P-24V
CB1aHF-12V
CB1aHF-24V
CB1aHF-M-12V
CB1aHF-M-24V
Nominal coil voltage
Standard packing; Carton: 50 pcs. Case: 200 pcs.
Note: Please use “CB∗∗∗R∗∗” to order with resistor inside type. (Asterisks “∗” should be filled in from ORDERING INFORMATION.)
2. Heat resistant type
Contact arrangement
Mounting classification
PC board type
1 Form A
Plug-in type
Bracket type
PC board type
1 Form C
Plug-in type
Bracket type
PC board type*
High contact capacity
(1 Form A)
Plug-in type
Bracket type
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
Sealed type
Part No.
CB1a-T-P-12V
CB1a-T-P-24V
CB1a-T-12V
CB1a-T-24V
CB1a-T-M-12V
CB1a-T-M-24V
CB1-T-P-12V
CB1-T-P-24V
CB1-T-12V
CB1-T-24V
CB1-T-M-12V
CB1-T-M-24V
Flux-resistant type
Part No.
CB1aF-T-P-12V
CB1aF-T-P-24V
CB1aF-T-12V
CB1aF-T-24V
CB1aF-T-M-12V
CB1aF-T-M-24V
CB1F-T-P-12V
CB1F-T-P-24V
CB1F-T-12V
CB1F-T-24V
CB1F-T-M-12V
CB1F-T-M-24V
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
CB1aH-T-P-12V
CB1aH-T-P-24V
CB1aH-T-12V
CB1aH-T-24V
CB1aH-T-M-12V
CB1aH-T-M-24V
CB1aHF-T-P-12V
CB1aHF-T-P-24V
CB1aHF-T-12V
CB1aHF-T-24V
CB1aHF-T-M-12V
CB1aHF-T-M-24V
Nominal coil voltage
Standard packing; Carton: 50 pcs. Case: 200 pcs.
Note: Please use “CB∗∗∗R∗∗” to order with resistor inside type. (Asterisks “∗” should be filled in from ORDERING INFORMATION.)
RATING
1. Coil data
1) No protective element
Contact
arrangement
Nominal coil
voltage
Pick-up voltage
Drop-out voltage
1 Form A,
1 Form C
12V DC
24V DC
3 to 7V DC
6 to 14V DC
1.2 to 4.2V DC
2.4 to 8.4V DC
High contact
capacity
(1 Form A)
12V DC
3 to 7V DC
1.2 to 4.2V DC
24V DC
6 to 14V DC
2.4 to 8.4V DC
Nominal operating
current
Coil resistance
Nominal operating
power
Usable voltage
range
117mA
75mA
117mA
150mA
58mA
75mA
103Ω
320Ω
103Ω
80Ω
411Ω
320Ω
1.4W
1.8W
1.4W (PC board type)
1.8W
1.4W (PC board type)
1.8W
10 to 16V DC
20 to 32V DC
10 to 16V DC
20 to 32V DC
Note: Other pick-up voltage types are also available. Please contact us for details.
2) With resistor inside
Contact
arrangement
Nominal coil
voltage
Pick-up voltage
(Initial, at 20°C 68°F)
Drop-out voltage
(Initial, at 20°C 68°F)
Nominal operating
current
(at 20°C 68°F)
Combined resistance
(±10%)
(at 20°C 68°F)
Nominal operating
power
(at 20°C 68°F)
Usable voltage
range
1 Form A,
1 Form C
12V DC
24V DC
3 to 7V DC
6 to 14V DC
1.2 to 4.2V DC
2.4 to 8.4V DC
134mA
84mA
89.5Ω
287.2Ω
1.6W
2.0W
10 to 16V DC
20 to 32V DC
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
ASCTB220E 201208-T
CB
2. Specifications
1) Standard type (12 V coil voltage)
Characteristics
Item
Specification
Arrangement
Contact
1 Form A
Contact resistance (Initial)
Contact material
Typ2mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
Nominal switching capacity (Initial)
Rating
Electrical
characteristics
Max. carrying current (Initial)
(14V DC, at 85°C 185°F, continuous)
Nominal operating power
Min. switching capacity (resistive load)*1
Insulation resistance (Initial)
Expected life
Conditions
40A 14V DC
N.O.: 40A 14V DC
N.C.: 30A 14V DC
70A 14V DC (at 20°C 68°F)
50A 14V DC (at 85°C 185°F)
N.O.: 40A
N.O.: 40A, N.C.: 30A
N.O.: 40A
1.4W
1.4W
1.8W (1.4W: PC board type)
1A 14V DC
Min. 20 MΩ (at 500V DC, Measurement at same location as “Breakdown voltage” section.)
Between open contacts
Between contacts and coil
Operate time (at nominal coil voltage)
(at 20°C 68°F)
Release time (at nominal coil voltage)
(at 20°C 68°F)
500 Vrms for 1 min. (Detection current: 10mA)
500 Vrms for 1 min. (Detection current: 10mA)
Breakdown
voltage (Initial)
Shock resistance
Mechanical
characteristics
High contact capacity
(1 Form A)
1 Form C
Max. 15ms (excluding contact bounce time) (Initial)
Max. 15ms (excluding contact bounce time) (Initial)
Min. 200 m/s2 {20G}
Min. 1,000 m/s2 {100G}
Functional
Destructive
Functional
Destructive
Electrical (at nominal switching capacity)
Mechanical
Vibration
resistance
Conditions for operation, transport and
storage*2
Max. operating speed
Mass
10 Hz to 500 Hz, Min. 44.1m/s2 {4.5G}
10 Hz to 2,000 Hz, Min. 44.1m/s2 {4.5G} Time of vibration for each direction; X. Y. Z direction: 4 hours
Flux-resistant type: Min. 105, Sealed type: Min. 5×104 (Operating frequency: 2s ON, 2s OFF)
Min. 106 (at 120 cpm)
Standard type; Ambient temperature: –40 to +85°C –40 to +185°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Heat resistant type; Ambient temperature: –40 to +125°C –40 to +257°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
15 cpm (at nominal switching capacity)
Approx. 33 g 1.16 oz
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.
2) Standard type (24 V coil voltage)
Characteristics
Item
Specifications
Arrangement
Contact
1 Form A
Contact resistance (Initial)
Contact material
Max. 15mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
Nominal switching capacity (Initial)
Rating
High contact capacity
(1 Form A)
1 Form C
Max. carrying current (Initial)
(28V DC, at 85°C 185°F, continuous)
Nominal operating power
20A 28V DC
N.O.: 20A 28V DC
N.C.: 10A 28V DC
20A 28V DC
20A
N.O.: 20A, N.C.: 10A
20A
1.8W
1.8W
1.8W, 1.4W (PC board type)
Note: All other specifications are the same as those of standard type (12 V coil voltage)
3) Heat resistant type (12 V and 24 V coil voltage)
Characteristics
Specifications
Item
Arrangement
12V
1 Form A
1 Form C
40A 14V DC
N.O.: 40A 14V DC
N.C.: 30A 14V DC
50A 14V DC
N.O.: 50A 14V DC
45A
50A
N.C.: 30A 14V DC 14V DC 14V DC
Contact
Contact resistance (Initial)
Contact material
Nominal switching capacity
(Initial)
Rating
Max. carrying current (Initial)
(at 85°C 185°F, continuous)*
Nominal operating power
24V
High contact
capacity
1 Form A
(1 Form A)
Max. 15mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
1.4W
1.4W
40A 14V DC
1.8W
1.4W
(PC
board
type)
1 Form C
High contact
capacity
(1 Form A)
20A 28V DC
N.O.: 20A 28V DC
N.C.: 10A 28V DC
20A 28V DC
25A 28V DC
N.O.: 25A 28V DC
N.C.: 10A 28V DC
25A 28V DC
1.8W
1.8W
1.8W,
1.4W
(PC board type)
Notes: 1. All other specifications are the same as those of standard type (12 V coil voltage)
2. *Current value in which carry current is possible when the coil temperature is 180°C 356°F
ASCTB220E 201208-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
CB
REFERENCE DATA
CB RELAYS (Standard type)
2. Max. switching capability (Resistive load)
(Heat resistant standard type)
(Standard type)
20A
100
30A
80
40A
60
3. Ambient temperature and operating voltage
range
(Standard type)
40
Coil applied voltage, VDC
120
50
40
30
20
105 cycle line
100
110 120 130 140
Applied coil voltage, %V
0
150
10
30
25
20
Operating voltage range
15
5
Actual value
(Max. 105 cycle)
0
35
10
10
40
20
90
(N.O. side Room temperature)
60
150
140
Switching voltage, VDC
Maximum allowable ambient temperature, °C
1. Allowable ambient temperature
20
30
40
Switching current, A
0
–40 –20
50
Pick-up voltage
(Cold start)
0
20 40 60 8085 100 120
Ambient temperature, °C
Assumption:
• Maximum mean coil temperature: 180°C
• Curves are based on 1.4W (Nominal power consumption of the unsupprressed coil at nominal voltage)
4. Distribution of pick-up and drop-out voltage
5. Distribution of operate and release time
Sample: CB1-P-12V, 42pcs.
Sample: CB1-P-12V, 42pcs.
60
60
Pick-up voltage
Drop-out voltage
40
30
40
30
20
20
10
10
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
0
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Voltage, V
6. Electrical life test (Motor free)
Operate and release time, ms
Change of pick-up and drop-out voltage
Sample: CB1F-12V, 5pcs.
Load: 25A 14V DC, motor free actual load
Operating frequency: ON 1s, OFF 9s
Ambient temperature: Room temperature
Change of contact resistance
Relay harness
M
Motor
50
5
Pick-up voltage
Max.
X
Min.
4
3
Drop-out voltage
2
Max.
X
Min.
0
40
3
20
10
1
Observation of load waveform
with current probe and digital
oscilloscope
Contact resistance, mΩ
Tested sample
Pick-up and drop-out voltage, V
6
Circuit
14V DC
Operate time
Release time
50
Quantity, n
Quantity, n
50
0
5
10
0
0
No. of operations, × 104
5
Max.
X
Min.
10
No. of operations, × 104
Load current waveform
Inrush current: 80A, Steady current: 25A
20A
200ms
Panasonic Corporation
Automation Controls Business Unit
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ASCTB220E 201208-T
CB
CB RELAYS (High contact capacity type)
1. Allowable ambient temperature
2. Ambient temperature and operating voltage
range
(High resistant/high contact capacity type)
3. Distribution of pick-up and drop-out voltage
Sample: CB1aHF-12V, 53pcs.
150
140
30A
100
40A
80
50A
60
40
70
35
60
30
Quantity, n
120
Coil applied voltage, VDC
Maximum allowable ambient temperature, °C
(High contact capacity/standard type)
25
20
Operating voltage range
50
40
30
15
20
10
60A
40
10
5
70A
20
90
Pick-up voltage
Drop-out voltage
100
110 120 130 140
Applied coil voltage, %V
0
−40 −20
150
Pick-up voltage
(Cold start)
0
20 40 60 80 85 100 120
Ambient temperature, °C
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
Voltage, V
Assumption:
• Maximum mean coil temperature: 180°C
• Curves are based on 1.4W (Nominal power consumption of the unsupprressed coil at nominal voltage)
4. Distribution of operate and release time
5. Contact resistance
Sample: CB1aHF-12V, 53pcs.
Sample: CB1aHF-12V, 53pcs.
(By voltage drop 6V DC 1A)
70
10
60
Operate time
Quantity, n
8
6
50
40
30
4
20
Release time
2
0
10
8
10
12
0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
14
Coil voltage, V
Resistance, mΩ
Change of pick-up and drop-out voltage
Sample: CB1aH-12V, 3pcs.
Load: Inrush current: 64A/Steady current: 35A
Fan motor actual load (motor free) 12V DC
Operating frequency: ON 3s, OFF 7s
Ambient temperature: Room temperature
Circuit
3s
7s
10s
Change of contact resistance
50
10
Pick-up and drop-out voltage, V
6. Electrical life test (Motor free)
9
8
7
6
Pick-up voltage
5
4
Drop-out voltage
3
Max.
X
Min.
2
1
0
M
Max.
X
Min.
0
5
10
No. of operations, × 104
Contact resistance, mΩ
Operate and release time, ms
12
40
30
20
Max.
10
X
Min.
0
0
5
No. of operations, × 104
Load current waveform
Inrush current: 64A, Steady current: 35A
10A
500ms
ASCTB220E 201208-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
10
CB
DIMENSIONS (mm inch)
The CAD data of the products with a
CAD Data
mark can be downloaded from: http://industrial.panasonic.com/ac/e/
1. PC board type
External dimensions
CAD Data
Schematic (Bottom view)
1 Form A
86
25.0
.984
30
87
85
4.5
.177
1.0
.039
Including resistor type also available
2.15
6.3 .085
.248
26.0
1.024
22.0
.866
1 Form C
86
30
87a
87
85
86
0.8
.031
8.4
.331
16.8
.661
87a
30
Including resistor type also available
87
85
8
.315
8.4
17.9 .331
.705
PC board pattern (Bottom view)
2.6
.102
4(or5)×2.6
4(or5)×.102
1 Form C type only
86
8.4
.331
87a
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
30
87
4(or5)×1.4
4(or5)×.055
16.8
.661
85
1 Form C type only
8.0
.315
8.4
.331
17.9
.705
Tolerance: ±0.1 ±.004
2. Plug-in type
CAD Data
External dimensions
Schematic (Bottom view)
1 Form A
86
25.0
.984
30
87
85
4.0
11.0.157
.433
Including resistor type also available
5×6.3
5×.248
26.0
1.024
1.7 dia.
.067 dia.
22.0
.866
86
30
8.4
.331
86
1 Form C
85
87a
87
87a
Including resistor type also available
0.8
.031
30
85
87
8
.315
8.4
.331
17.9
.705
16.8
.661
2.6
.102
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
Panasonic Corporation
Automation Controls Business Unit
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
industrial.panasonic.com/ac/e/
ASCTB220E 201208-T
CB
3. Bracket type
External dimensions
CAD Data
16.0
.630
5.4±0.1 dia.
.213±.004
Schematic (Bottom view)
4.0±0.1
.157±.004
1.7
.067
1 Form A
86
30
6.0 16.0
.236 .630
87
85
Including resistor type also available
1 Form C
25.0
.984
86
30
4.0
11.0.157
.433
85
5×6.3
5×.248
26.0
1.024
22.0
.866
87a
87
Including resistor type also available
0.8
.031
30
86
85
87a*
87
8
.315
2.6
.102
16.8
.661
17.9
.705
8.4
.331
8.4
.331
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
4. High contact capacity type (1 Form A) (Plug-in type)
CAD Data
External dimensions
Schematic (Bottom view)
86
30
25.5
1.004
85
87
Including resistor type also available
4.0 11.0
.157 .433
15.0
.591
5.8
.228
2×6.3 ±0.08
2×.248 ±.003
26.5
1.043
4×1.7 dia. hole
4×.067 dia. hole
2×9.5±0.08
2×.374±.003
8.4
.331
0.8
.031
86
1.2
.047
16.8
.661
30
87
85
8.4
.331
17.9
.705
2.6
.102
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
ASCTB220E 201208-T
22.0
.866
Panasonic Corporation
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
Automation Controls Business Unit
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CB
5. High contact capacity type (1 Form A) (PC board type)
CAD Data
External dimensions
Schematic (Bottom view)
86
30
25.5
1.004
1.0
.039
1.0
.039
4.5
.177
5.3
.209
3×1.7
3×.067
87
85
4.5
.177
3×1.7
3×.067
5.3
.209
2×2.15
9.5
6.3 2×.085
.374 .248
26.5
1.043
Sealed by epoxy resin
2×0.8
2×.031
2×1.2
2×.047
1.0
.039
A*
9.5
.374
22.0
.866
Including resistor type also available
PC board pattern (Bottom view)
1.4
.055
8.4
.331
86
85
86
3.9
.154 16.8
3.9 .661
.154
30
87
3×1.8
3×.071
30
7.8
.307
2.6
.102
* Intervals between terminals is measured at A surface level.
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
87
8.4
7.8 .331 16.8
.307
.661
85
3×2.15
3×.085
8.4
.331
3.9 3.9
.154 .154 17.9
.705
3×2.15
3×.085
2.6
.102
8.4
.331
17.9
.705
3×1.8
3×.071
Tolerance: ±0.1 ±.004
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
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.
2. Usage, transport and storage
conditions
1) Ambient temperature, humidity, and
atmospheric pressure during usage,
transport, and storage of the relay:
(1) Temperature: –40 to +85°C –40 to
+185°F (Standard type)
–40 to +125°C –40 to +257°F (High heatresistant type)
(2) Humidity: 2 to 85% RH (Avoid
freezing and condensation.)
(3) Atmospheric pressure: 86 to 106 kPa
The humidity range varies with the
temperature. Use within the range
indicated in the graph below.
(Temperature and humidity range for
usage, transport, and storage)
Humidity, %RH
85
Tolerance range
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F) 5
2
–40
–40
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
0
+32
Temperature, °C °F
85
+185
110 125
+230 +257
For general cautions for use, please refer to the “CAUTIONS FOR USE OF AUTOMOTIVE RELAYS”
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
ASCTB220E 201208-T