Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
ORDERING INFORMATION
MINI-ISO
AUTOMOTIVE RELAY CB RELAYS
RoHS compliant
FEATURES
• 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.
TYPICAL APPLICATIONS
• Automobiles
Headlights, Cell motors, Air conditioners,
ABS, EPS, etc.
• Construction equipment
• Agricultural equipment, Conveyor,
etc.
Contact arrangement
1a:
1:
1 Form A
1 Form C
CB
Protective construction
Nil:
F:
Sealed type
Flux-resistant type
Heat resistant of types
Nil:
T:
Standard type
Heat resistant type
Mounting classification
Nil:
P:
M:
Coil voltage (DC)
12V, 24 V
Plug-in type
PC board type
Bracket type
Protective element
Nil:
R:
None
with resistor inside
Contact rating
Nil:
H:
Standard type
High contact capacity type
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
TYPES
1. Standard type
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
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
Note: Other pick-up voltage types are also available. Please contact us for details.
2) With resistor inside
Contact arrangement Mounting classification Nominal coil voltage Sealed type Flux-resistant type
Part No. Part No.
1 Form A
PC board type 12V DC CB1a-P-12V CB1aF-P-12V
24V DC CB1a-P-24V CB1aF-P-24V
Plug-in type 12V DC CB1a-12V CB1aF-12V
24V DC CB1a-24V CB1aF-24V
Bracket type 12V DC CB1a-M-12V CB1aF-M-12V
24V DC CB1a-M-24V CB1aF-M-24V
1 Form C
PC board type 12V DC CB1-P-12V CB1F-P-12V
24V DC CB1-P-24V CB1F-P-24V
Plug-in type 12V DC CB1-12V CB1F-12V
24V DC CB1-24V CB1F-24V
Bracket type 12V DC CB1-M-12V CB1F-M-12V
24V DC CB1-M-24V CB1F-M-24V
High contact capacity
(1 Form A)
PC board type* 12V DC CB1aH-P-12V CB1aHF-P-12V
24V DC CB1aH-P-24V CB1aHF-P-24V
Plug-in type 12V DC CB1aH-12V CB1aHF-12V
24V DC CB1aH-24V CB1aHF-24V
Bracket type 12V DC CB1aH-M-12V CB1aHF-M-12V
24V DC CB1aH-M-24V CB1aHF-M-24V
Contact arrangement Mounting classification Nominal coil voltage Sealed type Flux-resistant type
Part No. Part No.
1 Form A
PC board type 12V DC CB1a-T-P-12V CB1aF-T-P-12V
24V DC CB1a-T-P-24V CB1aF-T-P-24V
Plug-in type 12V DC CB1a-T-12V CB1aF-T-12V
24V DC CB1a-T-24V CB1aF-T-24V
Bracket type 12V DC CB1a-T-M-12V CB1aF-T-M-12V
24V DC CB1a-T-M-24V CB1aF-T-M-24V
1 Form C
PC board type 12V DC CB1-T-P-12V CB1F-T-P-12V
24V DC CB1-T-P-24V CB1F-T-P-24V
Plug-in type 12V DC CB1-T-12V CB1F-T-12V
24V DC CB1-T-24V CB1F-T-24V
Bracket type 12V DC CB1-T-M-12V CB1F-T-M-12V
24V DC CB1-T-M-24V CB1F-T-M-24V
High contact capacity
(1 Form A)
PC board type* 12V DC CB1aH-T-P-12V CB1aHF-T-P-12V
24V DC CB1aH-T-P-24V CB1aHF-T-P-24V
Plug-in type 12V DC CB1aH-T-12V CB1aHF-T-12V
24V DC CB1aH-T-24V CB1aHF-T-24V
Bracket type 12V DC CB1aH-T-M-12V CB1aHF-T-M-12V
24V DC CB1aH-T-M-24V CB1aHF-T-M-24V
Contact
arrangement
Nominal coil
voltage Pick-up voltage Drop-out voltage Nominal operating
current Coil resistance Nominal operating
power
Usable voltage
range
1 Form A,
1 Form C
12V DC 3 to 7V DC 1.2 to 4.2V DC 117mA 103Ω1.4W 10 to 16V DC
24V DC 6 to 14V DC 2.4 to 8.4V DC 75mA 320Ω1.8W 20 to 32V DC
High contact
capacity
(1 Form A)
12V DC 3 to 7V DC 1.2 to 4.2V DC 117mA 103Ω1.4W (PC board type) 10 to 16V DC
150mA 80Ω1.8W
24V DC 6 to 14V DC 2.4 to 8.4V DC 58mA 411Ω1.4W (PC board type) 20 to 32V DC
75mA 320Ω1.8W
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 3 to 7V DC 1.2 to 4.2V DC 134mA 89.5Ω1.6W 10 to 16V DC
24V DC 6 to 14V DC 2.4 to 8.4V DC 84mA 287.2Ω2.0W 20 to 32V DC
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
2. Specifications
1) Standard type (12 V coil voltage)
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)
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)
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
Characteristics Item Specification
Contact
Arrangement 1 Form A 1 Form C High contact capacity
(1 Form A)
Contact resistance (Initial) Typ2mΩ (By voltage drop 6 V DC 1 A)
Contact material Ag alloy (Cadmium free)
Rating
Nominal switching capacity (Initial) 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)
Max. carrying current (Initial)
(14V DC, at 85°C 185°F, continuous) N.O.: 40A N.O.: 40A, N.C.: 30A N.O.: 40A
Nominal operating power 1.4W 1.4W 1.8W (1.4W: PC board type)
Min. switching capacity (resistive load)*11A 14V DC
Electrical
characteristics
Insulation resistance (Initial) Min. 20 MΩ (at 500V DC, Measurement at same location as “Breakdown voltage” section.)
Breakdown
voltage (Initial)
Between open contacts 500 Vrms for 1 min. (Detection current: 10mA)
Between contacts and coil 500 Vrms for 1 min. (Detection current: 10mA)
Operate time (at nominal coil voltage)
(at 20°C 68°F)Max. 15ms (excluding contact bounce time) (Initial)
Release time (at nominal coil voltage)
(at 20°C 68°F)Max. 15ms (excluding contact bounce time) (Initial)
Mechanical
characteristics
Shock resistance Functional Min. 200 m/s2 {20G}
Destructive Min. 1,000 m/s2 {100G}
Vibration
resistance
Functional 10 Hz to 500 Hz, Min. 44.1m/s2 {4.5G}
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
Expected life Electrical (at nominal switching capacity) Flux-resistant type: Min. 105, Sealed type: Min. 5×104 (Operating frequency: 2s ON, 2s OFF)
Mechanical Min. 106 (at 120 cpm)
Conditions
Conditions for operation, transport and
storage*2
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)
Max. operating speed 15 cpm (at nominal switching capacity)
Mass Approx. 33 g 1.16 oz
Characteristics Item Specifications
Contact
Arrangement 1 Form A 1 Form C High contact capacity
(1 Form A)
Contact resistance (Initial) Max. 15mΩ (By voltage drop 6 V DC 1 A)
Contact material Ag alloy (Cadmium free)
Rating
Nominal switching capacity (Initial) 20A 28V DC N.O.: 20A 28V DC
N.C.: 10A 28V DC 20A 28V DC
Max. carrying current (Initial)
(28V DC, at 85°C 185°F, continuous) 20A N.O.: 20A, N.C.: 10A 20A
Nominal operating power 1.8W 1.8W 1.8W, 1.4W (PC board type)
Characteristics Item Specifications
12V 24V
Contact
Arrangement 1 Form A 1 Form C
High contact
capacity
(1 Form A)
1 Form A 1 Form C
High contact
capacity
(1 Form A)
Contact resistance (Initial) Max. 15mΩ (By voltage drop 6 V DC 1 A)
Contact material Ag alloy (Cadmium free)
Rating
Nominal switching capacity
(Initial) 40A 14V DC N.O.: 40A 14V DC
N.C.: 30A 14V DC 40A 14V DC 20A 28V DC N.O.: 20A 28V DC
N.C.: 10A 28V DC 20A 28V DC
Max. carrying current (Initial)
(at 85°C 185°F, continuous)* 50A 14V DC N.O.: 50A 14V DC
N.C.: 30A 14V DC
45A
14V DC
50A
14V DC 25A 28V DC N.O.: 25A 28V DC
N.C.: 10A 28V DC 25A 28V DC
Nominal operating power 1.4W 1.4W 1.8W
1.4W
(PC
board
type)
1.8W 1.8W
1.8W,
1.4W
(PC board type)
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
REFERENCE DATA
CB RELAYS (Standard type)
1. Allowable ambient temperature
(Heat resistant standard type)
2. Max. switching capability (Resistive load)
(Standard type)
3. Ambient temperature and operating voltage
range
(Standard type)
20
40
60
80
100
120
140
150
90 100 110 120 130 140 150
Applied coil voltage, %V
Maximum allowable ambient temperature, °C
30A
40A
20A
0
Switching current, A
Switching voltage, VDC
10
50
40
30
20
60
020304010 50
105 cycle line
Actual value
(Max. 105 cycle)
(N.O. side Room temperature)
0
Ambient temperature, °C
Coil applied voltage, VDC
5
10
15
35
30
25
20
40
–40 –20 20 40 60 1000 120
8085
Pick-up voltage
(Cold start)
Operating voltage range
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
Sample: CB1-P-12V, 42pcs.
5. Distribution of operate and release time
Sample: CB1-P-12V, 42pcs.
0
30
20
10
40
50
60
1.5 2.0 2.5 3.0 3.5 4.5 5.04.0 5.5 6.0
Pick-up voltage
Drop-out voltage
Voltage, V
Quantity, n
0
30
20
10
40
50
60
3.02.01.51.0 2.5 3.5 4.5 5.04.0 5.5 6.0 7.06.5
Operate time
Release time
Operate and release time, ms
Quantity, n
6. Electrical life test (Motor free)
Sample: CB1F-12V, 5pcs.
Load: 25A 14V DC, motor free actual load
Operating frequency: ON 1s, OFF 9s
Ambient temperature: Room temperature
Circuit
Change of pick-up and drop-out voltage Change of contact resistance
0
No. of operations, × 104
Pick-up and drop-out voltage, V
Max.
Max.
Min.
Min.
X
X
2
1
4
6
5
3
0105
Pick-up voltage
Drop-out voltage
0
No. of operations, × 104
Contact resistance, mΩ
Max.
Min.
X
20
40
10
3
50
0105
Load current waveform
Inrush current: 80A, Steady current: 25A
20A
200ms
Tested sample
Relay harness
Motor
M
14V DC
Observation of load waveform
with current probe and digital
oscilloscope
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
CB RELAYS (High contact capacity type)
1. Allowable ambient temperature
(High resistant/high contact capacity type)
2. Ambient temperature and operating voltage
range
(High contact capacity/standard type)
3. Distribution of pick-up and drop-out voltage
Sample: CB1aHF-12V, 53pcs.
20
40
60
80
100
120
140
150
90 100 110 120 130 140 150
Applied coil voltage, %V
Maximum allowable ambient temperature, °C
70A
30A
40A
50A
60A
Ambient temperature, °C
Coil applied voltage, VDC
0
5
10
15
35
30
25
20
40
−40 −20 20 40 60 1000 120
80 85
Pick-up voltage
(Cold start)
Operating voltage range
0
30
20
10
40
50
60
70
1.51.00.50 2.52.0 3.0 3.5 4.5 5.04.0 5.5 6.0 6.5
Voltage, V
Quantity, n
Pick-up voltage
Drop-out voltage
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
Sample: CB1aHF-12V, 53pcs.
5. Contact resistance
Sample: CB1aHF-12V, 53pcs.
(By voltage drop 6V DC 1A)
0
6
4
2
8
10
12
1210814
Release time
Coil voltage, V
Operate and release time, ms
Operate time
0
30
20
10
40
50
60
70
Resistance, mΩ
Quantity, n
1.0 1.2 1.4 1.6 1.8 2.2 2.42.0 2.6 2.8
6. Electrical life test (Motor free)
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
Change of pick-up and drop-out voltage Change of contact resistance
10s
3s 7s
M
0
No. of operations, × 104
Pick-up and drop-out voltage, V
Max.
Max.
Min.
Min.
X
X
2
1
4
6
8
9
7
5
3
10
0105
Pick-up voltage
Drop-out voltage
0
No. of operations, × 104
Contact resistance, mΩ
Max.
Min.
X
10
50
20
30
40
0105
Load current waveform
Inrush current: 64A, Steady current: 35A
500ms
10A
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
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
22.0
26.0
2.15
6.3
4.5
1.0
25.0
0.8
8.4
16.8
2.6
17.9
8
8.4
86 87a
87
30
85
.331
.031
.661
.102
.705
.315
.331
.866
.248
.177
.039
1.024
.085
.984
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
Schematic (Bottom view)
PC board pattern (Bottom view)
Tolerance: ±0.1 ±.004
86
30
85 87
86
30
85 87
87a
1 Form A
1 Form C
Including resistor type also available
Including resistor type also available
1 Form C type only
1 Form C type only
4(or5)×2.6
30
87a
87
85
86 8.4
16.8
4(or5)×1.4
17.9
8.4
8.0
.331
.661
.705
.331
.315
4(or5)×.102
4(or5)×.055
CAD Data
2. Plug-in type
External dimensions
25.0
11.0
5×6.3
26.0
22.0
4.0
1.7 dia.
0.8
8.4
16.8
2.6
17.9
8
8.4
86 87a
87
30
85
.984
.433
5×.248
1.024
.866
.157
.067 dia.
.031
.331
.661
.102
.705
.315
.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
Schematic (Bottom view)
86
30
85 87
86
30
85 87
87a
1 Form A
1 Form C
Including resistor type also available
Including resistor type also available
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
3. Bracket type
External dimensions
16.0
6.0
25.0
16.0
4.0±0.1
1.7
5.4±0.1 dia.
22.0
11.0
5×6.3
26.0
4.0
8
17.9
0.8
8.4
2.6
8.4
16.8
86 87a*
87
30
85
.315
.705
.031
.331
.102
.331
.661
.630
.236
.984
.630 .067
.866
.433
5×.248
1.024
.157
.157±.004
.213±.004
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
Schematic (Bottom view)
86
30
85 87
86
30
85 87
87a
1 Form A
1 Form C
Including resistor type also available
Including resistor type also available
CAD Data
4. High contact capacity type (1 Form A) (Plug-in type)
External dimensions
2×6.3±0.08
2×.248±.003
4×1.7 dia. hole
4×.067 dia. hole
2×9.5±0.08
2×.374±.003
87
30
85
86
16.8
8.4
2.6
0.8
1.2
8.4
17.9
22.026.5
11.0
15.0
25.5
4.0
5.8
.661
.331
.102
.031
.047
.705
.8661.043
.433
.591
1.004
.157
.228
.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
Schematic (Bottom view)
86
30
85 87
Including resistor type also available
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CB
ASCTB220E 201208-T
NOTES
For general cautions for use, please refer to the “CAUTIONS FOR USE OF AUTOMOTIVE RELAYS”
5. High contact capacity type (1 Form A) (PC board type)
External dimensions
A*
Sealed by epoxy resin
9.5
9.5
1.0
1.0
1.0 4.5
3×1.7
3×1.7
6.3
2×2.15
78
58
03
68
2×0.8
2×1.2 16.8
8.4
4.5
5.35.3
3.9
3.9 3.9
3.9
2.6
8.4
17.9
22.0
26.5
25.5
.331
2×.031
2×.047 .661
.331
.154
.154 .154
.154
.102
.705
.177
.209
.866
.374
.039
3×.067
.374
.039
.039 .177
3×.067
.248
2×.085
.209
1.043
1.004
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
* Intervals between terminals is measured at A surface level.
Schematic (Bottom view)
PC board pattern (Bottom view)
Tolerance: ±0.1 ±.004
30
86
85
87
Including resistor type also available
30 87
85
86
2.6
1.4
3×1.8
3×1.8
3×2.15
3×2.15
16.8
8.4
7.8
8.4
17.9
7.8
.102
.055
3×.071
3×.071
3×.085
3×.085
.661
.331
.307
.331
.705
.307
CAD Data
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 heat-
resistant 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)
85
5
2
110850–40
+230
125
+257+185
+32–40
Humidity, %RH
Te mperature, °C°F
Tolerance range
(Avoid
condensation
when used at
temperatures
higher than
0°C32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C32°F)
