CB
AUTOMOTIVE RELAY
WITH ISO TERMINAL
ARRANGEMENT
CB RELAYS
FEATURES
Compliance with RoHS Directive
1. This relay has an ISO (International
Organization for Standardization)
terminal arrangement.
Terminals are all solder plated.
*35 A type: Terminal is the plug-in type
(no plating).
2. 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
3. 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)
4. Sealed type available for resisting
adverse environments.
5. Surge absorbing built-in diode type
that works when the relay coil is off
and an internal resistor type are
available. (Please inquire.)
6. Protective element type is also
available.
7. For only plug-in types, types with
nominal switching capacities of 35 A
(12 V) and 15 A (24 V) are available.
TYPICAL APPLICATIONS
1. Automobiles
Headlights, Cell motors, Air conditioners,
ABS, EPS, etc.
2. Construction equipment
3. 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
V: 35 A 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
D: with diode inside
R: with resistor inside
Mounting classification
Nil: Plug-in type
P: PC board type
M: Bracket type
Coil voltage (DC)
12V, 24 V
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
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
Packing quantity; Carton: 50 pcs. Case: 200 pcs.
Notes: 1. Please use “CB∗∗∗R∗∗” to order built-in resistor type and “CB∗∗∗D∗∗” to order built-in diode type. (Asterisks “∗” should be filled in from parts table.)
2. *Regarding solder, this product is not MIL (Military Standard) compliant. Please evaluate solder mounting by the actual equipment before using.
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
Packing quantity; Carton: 50 pcs. Case: 200 pcs.
Notes: 1. Please use “CB∗∗∗R∗∗” to order built-in resistor type and “CB∗∗∗D∗∗” to order built-in diode type. (Asterisks “∗” should be filled in from parts table.)
2. *Regarding solder, this product is not MIL (Military Standard) compliant. Please evaluate solder mounting by the actual equipment before using.
3. 35 A type (*Terminals are all of the plug-in type.)
Contact arrangement
Nominal coil voltage
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
1 Form A
1 Form C
1 Form A with resistor inside
1 Form C with resistor inside
1 Form A with diode inside
1 Form C with diode inside
Sealed type
Part No.
CB1aV-12V
CB1aV-24V
CB1V-12V
CB1V-24V
CB1aV-R-12V
CB1aV-R-24V
CB1V-R-12V
CB1V-R-24V
CB1aV-D-12V
CB1aV-D-24V
CB1V-D-12V
CB1V-D-24V
Packing quantity; Carton: 50 pcs. Case: 200 pcs.
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
Flux-resistant type
Part No.
CB1aVF-12V
CB1aVF-24V
CB1VF-12V
CB1VF-24V
CB1aVF-R-12V
CB1aVF-R-24V
CB1VF-R-12V
CB1VF-R-24V
CB1aVF-D-12V
CB1aVF-D-24V
CB1VF-D-12V
CB1VF-D-24V
CB
RATING
1. Coil data
1) 1. No protective element and with diode inside
Contact
arrangement
Nominal coil
voltage
Pick-up voltage
(Initial, at 20°C 68°F)
Drop-out voltage
(Initial, at 20°C 68°F)
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
(at 20°C 68°F)
Coil resistance
(±10%)
(at 20°C 68°F)
Nominal operating
power
(at 20°C 68°F)
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
Usable voltage
range
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
2. Specifications
1) Standard type (12 V coil voltage)
Characteristics
Item
Specifications
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
Mechanical
characteristics
Expected life
Conditions
High contact capacity
(1 Form A)
1 Form C
Max. carrying current (Initial)
(14V DC, at 85°C 185°F, continuous)
Nominal operating power
Min. switching capacity*1
Initial insulation resistance
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)
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 12V DC (12V DC), 1A 24V DC (24V DC)
Min. 20 MΩ (at 500 V DC)
500 Vrms for 1 min. (Detection current: 10mA)
500 Vrms for 1 min. (Detection current: 10mA)
Initial breakdown
voltage
Max. 15ms (at 20°C 68°F, excluding contact bounce time) (Initial)
Max. 15ms (at 20°C 68°F, excluding contact bounce time, without diode) (Initial)
Min. 200 m/s2 {20G}
Min. 1,000 m/s2 {100G}
Functional
Shock resistance
Destructive
Functional
Destructive
Electrical (at nominal switching capacity)
Mechanical
Vibration
resistance
Conditions for operation, transport and
storage*2
Max. operating speed
Unit weight
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 temp: –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 temp: –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. Refer to Conditions for operation,
transport and storage mentioned in AMBIENT ENVIRONMENT.
2) Standard type (24 V coil voltage)
Characteristics
Item
Specifications
Arrangement
Contact
1 Form A
Contact resistance (Initial)
Contact material
Nominal switching capacity (Initial)
Rating
Max. carrying current (Initial)
(28V DC, at 85°C 185°F, continuous)
Nominal operating power
20A 28V DC
1 Form C
Max. 15mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
N.O.: 20A 28V DC
N.C.: 10A 28V DC
High contact capacity
(1 Form A)
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)
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
CB
3) Heat resistant type (12 V and 24 V coil voltage)
Characteristics
Specifications
Item
12V
Arrangement
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 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
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
4) 35 A type (12 V coil voltage)
Characteristics
Contact
Rating
Item
Arrangement
Contact resistance (Initial)
Contact material
Nominal switching capacity (Resistive load)
Max. carrying current (Initial)
(14V DC, at 85°C 185°F, continuous)
Nominal operating power
Min. switching capacity (Reference value)*
Specifications
1 Form A
1 Form C
Typ2mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
35A 14V DC
N.O.: 35A 14V DC, N.C.: 25A 14V DC
N.O.: 35A
1.4W, 1.6W (with resistor inside)
1A 12V DC (12V DC), 1A 24V DC (24V DC)
Initial insulation resistance
Electrical
characteristics
Mechanical
characteristics
Expected life
Conditions
Unit weight
N.O.: 35A, N.C.: 25A
Min. 20 MΩ (at 500 V DC)
Between open contacts
Between contacts and coil
Operate time (at nominal voltage)
Release time (at nominal voltage)
500 Vrms for 1 min. (Detection current: 10mA)
500 Vrms for 1 min. (Detection current: 10mA)
Max. 15ms (excluding contact bounce time) (Initial)
Max. 15ms (excluding contact bounce time, without diode) (Initial)
Functional
Min. 100 m/s2 {10G} (Half-wave pulse of sine wave: 11ms; detection: 10µs)
Shock resistance
Destructive
Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
Functional
10 Hz to 100 Hz, Min. 44.1m/s2 {4.5G} (Detection time: 10µs)
Vibration
resistance
Destructive
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)
Electrical (at nominal switching capacity)
With diode inside: Min. 5×104 (Operating frequency: 2s ON, 2s OFF)
Mechanical
Min. 106 (at 120 cpm)
Ambient temp: –40°C to +85°C –40°F to +185°F
Conditions for operation, transport and storage
Humidity: 5% R.H. to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed
15 cpm (At nominal switching capacity)
Approx. 26 g .92 oz, Approx. 28 g .99 oz (with diode inside)
Initial breakdown
voltage
Note: * 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.
5) 35 A type (24 V coil voltage)
Characteristics
Item
Contact
Arrangement
Nominal switching capacity (Resistive load)
Max. carrying current
Rating
(14V DC, at 85°C 185°F, continuous)
Nominal operating power
Specifications
1 Form A
15A 28V DC
1 Form C
N.O.: 15A 28V DC, N.C.: 8A 28V DC
N.O.: 15A
N.O.: 15A, N.C.: 8A
1.8W, 2.0W (with resistor inside)
Note: All other specifications are the same as those of 35 A type (12 V coil voltage).
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
CB
REFERENCE DATA
CB RELAYS (Standard type)
1. Allowable ambient temperature
2. Max. switching capability (Resistive load)
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
0
110 120 130 140 150
Applied Coil Voltage, %V
10
30
25
20
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
(Standard type)
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
Asssumption:
• 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-24V, 42pcs.
* Without diode
60
60
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
Operate and release time, ms
6-(1). Electrical life test (Motor free)
Change of pick-up and drop-out voltage
Sample: CB1F-12V, 5pcs.
Load: 25A 14V DC, motor free actual load
Switching frequency: (ON:OFF = 1s:9s)
Ambient temperature: Room temperature
Change of contact resistance
Tested sample
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
Pick-up and drop-out voltage, V
6
Circuit
14V DC
Operate time
Release time
50
Quantity, n
Frequency
50
Pick-up voltage
Drop-out voltage
0
5
10
0
0
No. of operations, × 104
Load current waveform
Inrush current: 80A, Steady current: 25A
20A
200ms
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
5
No. of operations, × 104
Max.
X
Min.
10
CB
Change of pick-up and drop-out voltage
Circuit
Relay
Halogen lamp 12V 45/65W
Change of contact resistance
6
50
5
Pick-up voltage
Max.
X
Min.
4
3
Drop-out voltage
2
Max.
X
Min.
1
14V DC
0
Observation of load waveform with
current probe and digital oscilloscope
Contact resistance, mΩ
Sample: CB1F-12V, 5pcs.
Load: 45/65Wx5 parallel, 14V DC, halogen lamp
actual load
Switching frequency: (ON:OFF = 1s:8s)
Ambient temperature: Room temperature
Pick-up and drop-out voltage, V
6-(2). Electrical life test (Lamp load)
0
10
40
30
20
10
0
20
0
No. of operations, × 104
Max.
X
Min.
20
10
No. of operations, × 104
Load current waveform
Inrush current: 100A, Steady current: 20A
20.5A
200ms
CB RELAYS (High contact capacity type)
1. Allowable ambient temperature
2. Max. switching capability
3. Ambient temperature and operating voltage
range
(High contact capacity type)
30A
100
40A
80
50A
60
40
Coil applied voltage, VDC
120
Switching voltage, VDC
Maximum Allowable Ambient Temperature, °C
(High contact capacity type)
60
150
140
50
40
30
20
30
25
Operation range
20
15
10
60A
40
105 cycle line
10
0
100
5
Actual value
(Max. 1 cycle)
70A
20
90
35
110 120 130 140 150
Applied Coil Voltage, %V
0
20
40
60
80
0
−40 −20
100
Switching current, A
Pick-up voltage
(Cold start)
0
20 40 60 80 85 100 120
Ambient temperature, °C
Asssumption:
• 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
6. Contact resistance
Sample: CB1aHF-12V, 53pcs.
Sample: CB1aHF-12V, 53pcs.
Sample: CB1aHF-12V, 53pcs.
(By voltage drop 6V DC 1A)
70
40
30
20
60
Operate time
8
6
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
50
40
30
4
20
Release time
2
10
0
10
Frequency
50
Operate and release time, ms
Frequency
60
70
12
Pick-up voltage
Drop-out voltage
0
10
8
10
12
14
Coil voltage, V
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0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
Resistance, mΩ
CB
7-(1). Electrical life test (Motor free)
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
Switching frequency: (ON:OFF = 3s:7s)
Ambient temperature: Room temperature
50
7s
10s
9
8
7
6
Pick-up voltage
5
Max.
X
Min.
4
Drop-out voltage
3
Max.
X
Min.
2
1
0
M
Contact resistance, mΩ
Pick-up and drop-out voltage, V
10
Circuit
3s
Change of contact resistance
0
5
30
20
Max.
10
X
Min.
0
10
No. of operations, × 10
40
0
5
10
No. of operations, × 104
4
Load current waveform
Inrush current: 64A, Steady current: 35A
10A
500ms
7-(2). Electrical life test (Motor lock)
Change of pick-up and drop-out voltage
Sample: CB1aH-12V, 5pcs.
Load: 100A 14V DC
Magnet clutch actual load (lock condition)
Switching frequency: (ON:OFF = 1s:9s)
Ambient temperature: Room temperature
Clutch
(5V DC
applied)
Pick-up voltage
5
Max.
X
Min.
4
Max.
X
Min.
3
2
Contact resistance, mΩ
Pick-up and drop-out voltage, V
M
50
6
Circuit
14V DC
Change of contact resistance
40
30
20
Drop-out voltage
10
1
Lock condition
0
0
10
20
40
60
80
100
0
0
No. of operations
Load current waveform
100A 14V DC
20A
200ms
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
10
20
40
60
No. of operations
80
Max.
X
Min.
100
CB
CB RELAY (35 A type)
1-(1). Distribution of pick-up and drop-out
voltage
1-(2). Distribution of pick-up and drop-out
voltage
1-(3). Distribution of pick-up and drop-out
voltage
Sample: CB1aV-12V, 30pcs.
Sample: CB1aV-24V, 30pcs.
Sample: CB1V-24V, 30pcs.
20
20
Pick-up voltage
Drop-out voltage
30
Pick-up voltage
Drop-out voltage
18
10
Frequency
Frequency
Frequency
16
15
Pick-up voltage
Drop-out voltage
25
14
12
10
20
15
8
10
6
5
4
5
2
0
0
0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5
0
Voltage, V
Voltage, V
4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0
3.5 4.5
11.5 12.5
Voltage, V
2.-(1) Contact resistance
2.-(2) Contact resistance
2.-(3) Contact resistance
Sample: CB1aV-12V, 30pcs.
(By voltage drop 12 V DC 1A)
Sample: CB1aV-24V, 30pcs.
(By voltage drop 24 V DC 1A)
Sample: CB1V-24V, 30pcs.
(By voltage drop 24 V DC 1A)
25
20
25
N.C. side
N.O. side
15
15
10
10
5
5
0
1.4
1.6
1.8
0
2.0
0
Contact resistance, mΩ
3. Electrical life test (Blower fan)
Pick-up and drop-out voltage, V
3s
1.6
1.8
0
2.0
0 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Contact resistance, mΩ
Change of contact resistance
50
10
9
Pick-up voltage
8
Max.
X
Min.
7
6
5
4
3
Drop-out voltage
2
6s
10
Contact resistance, mΩ
11
Circuit
3s
1.4
Change of pick-up and drop-out voltage
Sample: CB1aV-D-24V, 3pcs.
Load: Blower fan load 28 V DC
Inrush current: 30 A/Steady current: 10 A
Switching frequency: (ON:OFF = 3s:3s)
Switching cycle: 105
Ambient temperature: 85°C
Coil protective element: Diode
15
5
Max.
X
Min.
Contact resistance, mΩ
0
Frequency
20
Frequency
Frequency
20
40
30
20
10
Max.
X
Min.
1
0
0
5
10
No. of operations, × 104
M
Load current waveform
Inrush current: 30 A, Steady current: 10 A
10A
500ms
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
0
0
5
No. of operations, × 104
10
CB
DIMENSIONS (Unit: mm inch)
1. PC board type
External dimensions
Schematic (Bottom view)
1 Form A
86
25.0
.984
30
87
85
4.5
.177
1.0
.039
Including diode type,
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
Including diode type,
including resistor type also available
8.4
.331
16.8
.661
87a
30
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:
General tolerance
Max. 1mm .039 inch:
±0.1 ±.004
1 to 3mm .039 to .118 inch: ±0.2 ±.008
Min. 3mm .118 inch:
±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
2. Plug-in type * The dimensions are the same as those of 35A type.
External dimensions
Schematic (Bottom view)
1 Form A
86
25.0
.984
30
87
85
Including diode type,
including resistor type also available
4.0
11.0.157
.433
5-6.3
5-.248
26.0
1.024
1.7 dia.
.067 dia.
22.0
.866
1 Form C
86
30
8.4
.331
86
0.8
.031
87
Including diode type,
including resistor type also available
87a
30
85
85
87a
87
8
.315
8.4
.331
17.9
.705
16.8
.661
2.6
.102
Dimension:
General tolerance
Max. 1mm .039 inch:
±0.1 ±.004
1 to 3mm .039 to .118 inch: ±0.2 ±.008
Min. 3mm .118 inch:
±0.3 ±.012
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
CB
3. Bracket type
External dimensions
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 diode type,
including resistor type also available
1 Form C
25.0
.984
86
30
4.0
11.0.157
.433
22.0
.866
85
87
Including diode type,
including resistor type also available
5-6.3
5-.248
26.0
1.024
1.7 dia.
.067 dia.
87a
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:
General tolerance
Max. 1mm .039 inch:
±0.1 ±.004
1 to 3mm .039 to .118 inch: ±0.2 ±.008
Min. 3mm .118 inch:
±0.3 ±.012
4. High contact capacity (1 Form A) (Plug-in type)
External dimensions
Schematic (Bottom view)
86
30
25.5
1.004
85
87
Including diode type,
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
22.0
.866
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:
General tolerance
Max. 1mm .039 inch:
±0.1 ±.004
1 to 3mm .039 to .118 inch: ±0.2 ±.008
Min. 3mm .118 inch:
±0.3 ±.012
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
CB
5. High contact capacity (1 Form A) (PC board type)
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
2-0.8
2-.031
A*
87
85
5.3
.209
2-2.15
9.5
6.3 2-.085
.374 .248
26.5
1.043
Sealed by epoxy resin
2-1.2
2-.047
1.0
.039
9.5
.374
22.0
.866
4.5
.177
3-1.7
3-.067
Including diode type,
including resistor type also available
PC board pattern (Bottom view)
1.4
.055
8.4
.331
3-2.15
3-.085
2.6
.102
86
30
85
87
3.9
.154 16.8
3.9 .661
.154
86
3-1.8
3-.071
30
87
8.4
7.8 .331 16.8
.307
.661
85
8.4
.331
3.9 3.9
.154 .154 17.9
.705
3-2.15
3-.085
2.6
.102
* Intervals between terminals is measured at A surface level.
Dimension:
General tolerance
Max. 1mm .039 inch:
±0.1 ±.004
1 to 3mm .039 to .118 inch: ±0.2 ±.008
Min. 3mm .118 inch:
±0.3 ±.012
Cautions regarding the protection element
1. Part numbers without protection
elements
1) 12 V models
When connecting a coil surge protection
circuit to these relays, we recommend a
zener diode with a zener voltage of 24 V
or higher, or a resistor (680Ω to 1,000Ω).
When a diode is connected to the coil in
parallel, the release time will slow down
and working life may shorten. Before use,
please check the circuit and verify that
the diode is not connected in parallel to
the coil drive circuit.
2) 24 V models
When connecting a coil surge protection
circuit to these relays, we recommend a
zener diode with a zener voltage of 48 V
or higher, or a resistor (2,800Ω to
4,700Ω).
When a diode is connected to the coil in
parallel, the release time will slow down
and working life may shorten. Before use,
please check the circuit and verify that
the diode is not connected in parallel to
the coil drive circuit.
2. Part numbers with diodes
These relays use a diode in the coil surge
protection element. Therefore, the
release time is slower and the working life
might be shorter compared to part
numbers without protection elements and
part numbers with resistors.
Be sure to use only after evaluating under
actual load conditions.
3. Part numbers with resistors
This part number employs a resistor in
the coil surge protection circuit; therefore,
an external surge protection element is
not required. In particular, when a diode
is connected in parallel with a coil, the
release time becomes slower which
could adversely affect working life.
Please check the circuit and make sure
that a diode is not connected in parallel
with the coil drive circuit.
For Cautions for Use, see Relay Technical Information.
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
7.8
.307
8.4
.331
17.9
.705
3-1.8
3-.071
