Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CA
ASCTB219E 201203-T1
ORDERING INFORMATION
AUTOMOTIVE POWER
RELAYS — SMALL SIZE,
LIGHT WEIGHT CA RELAYS
RoHS compliant
FEATURES
• Small size and light weight
For space saving, the outside dimensions
of the main body are reduced to be 21.5
mm (length) × 14.4 mm (width) × 37 mm
(height) (.846 × .567 × 1.457 inch) and
the weight is also reduced to be approx.
19 g .67 oz (direct coupling 1 Form A, 1
Form B type)
• Low operating power (1.4W) type is
available (1 Form A, 1 Form B)
• Since the terminal arrangement
complies with JIS D5011 B4-M1,
commercial connectors are available
for these types of relays.
• Superior inrush characteristics
Despite its small size, 120A (max. 0.1 s)
capacity has been achieved by using
contacts that are good at withstanding
inrush currents and because of an
ingenious contacting mechanism.
(1 Form A and 1 Form B)
TYPICAL APPLICATIONS
• Motorcycles and automobiles
Motorcycle cell motors, car air
conditioners, halogen lamps, etc.
• Agricultural equipment
• Battery equipped devices such as
conveyance vehicles
Contact arrangement
1a:
1b:
1:
1 Form A
1 Form B
1 Form C
CA
Protective construction
Nil:
F:
Sealed type
Dust cover type
Nominal operating power
Nil:
S:
Standard type (1.8 W)
Low operating power type (1.4 W) (1 Form A, 1 Form B)
Protective element
Nil:
R:
None (Standard type)
With resistor inside
Coil voltage (DC)
12 V, 24 V (1 Form C only)
Mounting method
A:
N:
C:
Rubber bracket A type (1 Form A, 1 Form B)
Screw mounting type
Direct coupling type
Classification by type
Nil:
5:
1 Form C
1 Form A or 1 Form B
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CA
ASCTB219E 201203-T1
TYPES
Standard packing: Carton: 20 pcs. Case: 200 pcs.
Note: Please use “CA∗∗R-∗-∗-∗ or CA∗∗SR-∗-∗-∗” built-in resistor type. (Asterisks “ ∗ ” should be filled in from ORDERING INFORMATION.)
RATING
1. Coil data
Note: Other pick-up voltage types are also available. Please contact us for details.
2. Specifications
1) 12 V DC type
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.
Contact arrangement Coil voltage Mounting type
Standard type Low operating power type
Sealed type Dust cover type Sealed type Dust cover type
Part No. Part No. Part No. Part No.
1 Form A 12 V DC
Rubber bracket A CA1a-12V-A-5 CA1aF-12V-A-5 CA1aS-12V-A-5 CA1aFS-12V-A-5
Screw-mounting CA1a-12V-N-5 CA1aF-12V-N-5 CA1aS-12V-N-5 CA1aFS-12V-N-5
Direct coupling CA1a-12V-C-5 CA1aF-12V-C-5 CA1aS-12V-C-5 CA1aFS-12V-C-5
1 Form B 12 V DC
Rubber bracket A CA1b-12V-A-5 CA1bF-12V-A-5 CA1bS-12V-A-5 CA1bFS-12V-A-5
Screw-mounting CA1b-12V-N-5 CA1bF-12V-N-5 CA1bS-12V-N-5 CA1bFS-12V-N-5
Direct coupling CA1b-12V-C-5 CA1bF-12V-C-5 CA1bS-12V-C-5 CA1bFS-12V-C-5
1 Form C
12 V DC Screw-mounting CA1-12V-N – – –
Direct coupling CA1-12V-C – – –
24 V DC Screw-mounting CA1-24V-N – – –
Direct coupling CA1-24V-C – – –
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
Standard type
1 Form A and 1 Form B 12 V DC Max. 8 V DC 0.6 to 6 V DC 150 mA 80Ω1.8 W 10 to 16V DC
Low operating power type
1 Form A and 1 Form B 12 V DC Max. 8 V DC 0.6 to 6 V DC 120 mA 100Ω1.4 W 10 to 16V DC
1 Form C 12 V DC Max. 8 V DC Min. 0.6 V DC 150 mA 80Ω1.8 W 10 to 15V DC
24 V DC Max. 16 V DC Min. 1.2 V DC 75 mA 320Ω1.8 W 20 to 30V DC
Characteristics Item Specifications
1 Form A type 1 Form B type 1 Form C type
Contact
Arrangement 1 Form A 1 Form B 1 Form C
Contact resistance (Initial) Typ 3mΩ (By voltage drop 6V DC 1A)
Contact voltage drop
Max. 0.3 V [(after electrical life test, by
voltage drop 12 V DC 20 A (1.4 W type),
12 V DC 30 A (1.8 W type)]
Max. 0.3 V
(after electrical life test, by
voltage drop 12 V DC 20 A)
Max. 0.4 V
(after electrical life test, by
voltage drop 12 V DC 20 A)
Contact material Ag alloy (Cadmium free)
Rating
Nominal switching capacity (resistive load) 20 A 12V DC (1.4 W type)
30 A 12V DC (1.8 W type) 20 A 12 V DC
Max. carrying current
(at coil applied voltage 14 V DC, 80°C 176°F)
20 A continuous (1.4 W type)
30 A for 1 min. (1.8 W type) 20 A continuous 20 A continuous
Nominal operating power 1.4 W/1.8 W 1.8 W
Min. switching capacity (resistive load)*11 A 12V DC
Electrical
characteristics
Insulation resistance (Initial) Min. 10 MΩ (at 500V DC) Min. 10 MΩ (at 500V DC)
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 20°C 68°F)Max. 10ms (at nominal voltage) (excluding contact bounce time) (Initial)
Release time (at 20°C 68°F)Max. 10ms (at nominal voltage) (excluding contact bounce time) (Initial)
Mechanical
characteristics
Shock
resistance
Functional
Min. 200 m/s2 {20G}
(Half-wave pulse of sine wave: 11ms;
detection time: 10µs)
Min. 100 m/s2 {10G}
(Half-wave pulse of sine wave: 11ms; detection time: 10µs)
Destructive Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
Vibration
resistance
Functional Rubber bracket A type: 50 Hz to 500 Hz, Min. 100 m/s2 {10G}
Screw-mounting and direct coupling type: 33 Hz, Min. 44.1 m/s2 {4.5G} (Detection time: 10µs)
Destructive
Rubber bracket A type: 50 Hz to 500 Hz, Min. 100 m/s2 {10G}
Screw-mounting and direct coupling type: 33 Hz, Min. 44.1 m/s2 {4.5G},
Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours
Expected life Electrical (at nominal switching capacity)
Min. 105 (operating frequency: 2s ON,
2s OFF) (1.4 W and 1.8 W type at 20 A)
Min. 2 × 104 (operating frequency: 3s
ON, 15s OFF) (1.8 W type at 30 A)
Min. 105 (operating frequency: 2s ON, 2s OFF)
Mechanical Min. 106 (at 120 cpm) Min. 5 × 105 (at 120 cpm)
Conditions
Conditions for operation, transport and
storage*2
Ambient temperature: –30°C to +80°C –22°F to +176°F,
Humidity: 5% R.H. to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed 15 cpm (1.4 W type: at nominal load,
1.8 W type: at 20 A) 15 cpm (at nominal switching capacity)
Water-proof
standard Water-proof standard Sealed type: JIS D 0203 S2, Dust cover type: JIS D 0203 R2
Mass Rubber bracket A type: 23 g .81 oz,
Screw-mounting and direct coupling type: 19 g .67 oz 31 g 1.09 oz
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CA
ASCTB219E 201203-T1
2) 24 V DC type
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.
Electrical life
REFERENCE DATA
Characteristics Item Specifications
1 Form C type
Contact
Arrangement 1 Form C
Contact resistance (Initial) Typ 3mΩ (By voltage drop 6V DC 1A)
Contact voltage drop Max. 0.4 V (after electrical life test, by voltage drop 24 V DC 10 A)
Contact material Ag alloy (Cadmium free)
Rating
Nominal switching capacity (resistive load)
(operating frequency: 2s ON, 2s OFF) 10 A 24V DC
Max. carrying current 10 A continuous (at coil applied voltage 28 V DC, 80°C 176°F)
Nominal operating power 1.8 W
Min. switching capacity (resistive load)*11 A 24V DC
Electrical
characteristics
Insulation resistance (Initial) Min. 10 MΩ (at 500V DC)
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 voltage) (at 20°C 68°F) Max. 10ms (excluding contact bounce time) (Initial)
Release time (at nominal voltage) (at 20°C 68°F) Max. 10ms (excluding contact bounce time) (Initial)
Mechanical
characteristics
Shock resistance Functional Min. 100 m/s2 {10G} (Half-wave pulse of sine wave: 11ms; detection time: 10µs)
Destructive Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
Vibration resistance
Functional 33 Hz, Min. 44.1 m/s2 {4.5G} (Detection time: 10µs)
Destructive 33 Hz, Min. 44.1 m/s2 {4.5G},
Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours
Expected life Electrical (at nominal switching capacity) Min. 105 (operating frequency: 2s ON, 2s OFF)
Mechanical Min. 5 × 105 (at 120 cpm)
Conditions Conditions for operation, transport and storage*2Ambient temperature: –30°C to +80°C –22°F to +176°F,
Humidity: 5% R.H. to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed 15 cpm (nominal switching capacity)
Water-proof
standard Water-proof standard JIS D 0203 S2
Mass 31 g 1.09 oz
Nominal coil voltage Motor load
(operating frequency ON: 2 s, OFF: 2 s)
Halogen lamp load
(operating frequency ON: 1 s, OFF: 14 s)
1 Form A and 1 Form B type 12 V DC Min. 105, 20 A 12 V DC Min. 105, 20 A 12 V DC
1 Form C type 12 V DC Min. 105, 20 A 12 V DC Min. 105, 20 A 12 V DC
24 V DC Min. 105, 10 A 24 V DC Min. 105, 6 A 24 V DC
1. Coil temperature rise
Samples: CA1aS-12V-N-5, 5pcs.
Measured portion: Inside the coil
Contact carrying current: 20A
Ambient temperature: Room temperature, 85°C
185°F
2. Max. switching capability (Resistive load,
initial)
3. Ambient temperature and operating voltage
range
12 14 16
140
120
100
80
60
40
20
0
85°C
Room
temperature
Temperature rise, °C
Coil applied voltage, V
185°F
0
Switching current, A
Switching voltage, VDC
10
50
40
30
20
60
020304010 50
(N.O. side Room temperature)
0
Ambient temperature, °C
Coil applied voltage, VDC
5
10
15
35
30
25
20
40
−40 −20−30
20 40 60 1000 120
8085
Operation range
Pick-up voltage
(Cold start)
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CA
ASCTB219E 201203-T1
4. Ambient temperature characteristics
(Cold start)
Samples: CA1bS-12V-N-5
5. Distribution of pick-up and drop-out voltage
Quantity: 50pcs.
6. Operate and release time characteristics
Sample: CA1a-12V-N-5, 10pcs.
0
Ambient temperature, °C
Pick-up and drop-out voltage, V
10
8
6
4
2
11
1
3
5
7
9
−30 20 80
Pick-up voltage
Drop-out voltage
0
30
20
10
40
50
60
Voltage, V
Quantity, n
1.51.00.50 2.0 2.5 3.0 3.5 4.5 5.04.0 5.5 6.0 6.5
Pick-up voltage
Drop-out voltage
0
Coil applied voltage, %V
Operate and release time, ms
Max.
Min.
X
Max.
Min.
15
20
10
5
25
01610 12 1468
Operate time
Release time
X
7-(1). Electrical life test (Motor load)
Sample: CA1a-12V-C, 3pcs.
Load: Inrush current: 63A, steady current: 23A
Blower fan motor actual load (motor free)
Operating frequency: ON 2s, OFF 2s
Ambient temperature: Room temperature
Load current waveform
Load: Inrush current: 63A, steady current: 23A,
Change of pick-up and drop-out voltage Change of contact resistance
500ms
10A
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
02010
Pick-up voltage
Drop-out voltage
0
No. of operations, × 104
Contact resistance, mΩ
Max.
Min.
X
2
4
6
8
10
02010
7-(2). Electrical life test (Lamp load)
Sample: CA1a-12V-C, 3pcs.
Load: 60Wx4, Inrush current: 110A, steady current: 20A
Halogen lamp actual load
Operating frequency: ON 1s, OFF 14s
Ambient temperature: Room temperature
Load current waveform
Load: Inrush current: 110A, steady current: 20A,
Change of pick-up and drop-out voltage Change of contact resistance
200ms
20A
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
02010
Pick-up voltage
Drop-out voltage
0
No. of operations, × 104
Contact resistance, mΩ
Max.
Min.
X
2
4
6
8
10
1
3
5
7
9
02010
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CA
ASCTB219E 201203-T1
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. 1 Form A/1 Form B
Rubber bracket A type External dimensions
21.5
19.5
9
37
14.4
17.4
10
15
2.5
6
21.5
17
0.8
15.4
12.4
5.5
2.4
1.5
2
.846
.768
.354
1.457
.567
.685
.394
.591
.098
.236
.846
.669
.031
.606
.488
.217
.094
.059
.079
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)
1 Form A
Including resistor
(1 Form A)
1 Form B
Note: Including resistor type also available.
CAD Data
2. 1 Form A/1 Form B
Screw-mounting type External dimensions
14
9
2
17.421.5
3
.079
.118
14.4
.2366
0.8
15.4
12.4
5.5
2.4
17.5
37
1.457
7
R10
6.5 dia. hole
+0.3
–0
.256 dia.
+.012
–0
19.5
.846
.768
.551
.354
.685
.567
.031
.606
.488
.217
.094
.689
1.457
.276
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)
1 Form A
Including resistor
(1 Form A)
1 Form B
Note: Including resistor type also available.
CAD Data
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
CA
ASCTB219E 201203-T1
For Cautions for Use, see Relay Technical Information.
3. 1 Form A/1 Form B
Direct coupling type External dimensions
21.5
9
17.4
14.4
.23660.8
15.4
12.4
5.5
2.4
37
19.5 .768
.846
.354
.685
.567
.031
.606
.488
.217
.094
1.457
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)
1 Form A
Including resistor
(1 Form A)
1 Form B
Note: Including resistor type also available.
CAD Data
4. 1 Form C
Screw-mounting type External dimensions
14
23.4
19.431.2
4
2
5.5
2.4
0.8
12.2
12
40
59
28
R10
6.6 dia. hole
.260 dia.
28.4
1.228
1.118
20
99
6
11.4
.551
.921
.764
.157
.079
.217
.094
.031
.480
.472
1.575
2.323
1.102
.787
.354 .354
.236
.449 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)
Note: Including resistor type also available.
Including resistor
1 Form C
CAD Data
5. 1 Form C
Direct coupling type External dimensions
19.4
5.5
2.4
0.8
12.2
40
28
99
6
11.4
23.4
31.2
28.4
1.228
1.118 .764
.217
.094
.031
.480
1.575
1.102
.354 .354
.236
.449
.921
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)
Note: Including resistor type also available.
Including resistor
1 Form C
CAD Data
