NAIS CA1bS-12V-N-5, CA1bS-12V-C-5, CA1bS-12V-A-5, CA1bFS-12V-N-5, CA1bFS-12V-C-5 Datasheet

383

CA-RELAYS

AUTOMOTIVE POWER
RELAYS — SMALL SIZE,
LIGHT WEIGHT AND
COMPLETEL Y W A TER TIGHT

FEATURES

1. 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)

2. W ater tightness

Since the relays comply with the water
tightness standards, JIS D 0203, water
and dust will not enter the relay ev en if it is
mounted in the engine area.

3. Low operaing power (1.4W) type is
available (1 Form A, 1 Form B)

4. Since the terminal arrangement
complies with JIS D5011 B4-M1, com­mercial connectors are available for
these types of relays.

SPECIFICATIONS

Contact

Type 12 V DC 24 V DC
Arrangement 1 Form A 1 Form B 1 Form C 1 Form C
Initial contact resistance, max.

(By voltage drop 6 V DC 1A)

50 m ohm

Contact material silver alloy

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)

0.3 V

After electrical life test,

by voltage drop

12 V DC 20 A

0.4 V

After electrical life test,

by voltage drop

12 V DC 20 A

0.4 V

After electrical life test,

by voltage drop

24 V DC 10 A

Rating

Nominal switching capacity
(resistive load)

20 A 12 V DC

(1.4 W type)

30 A 12 V DC

(1.8 W type)

20 A 12 V DC

10 A 24 V DC

(ON: 2s, OFF: 2s)

Max. switching voltage 16 V 15 V 30 V
Max. switching current

120 A (1.4 W type)
150 A (1.8 W type)

120 A 100 A 50 A (Inrush current)

Max. carrying current

20 A continuous

(1.4 W type)

30 A for 1 min

(1.8 W type)

20 A continuous 20 A continuous 10 A continuous

Nominal operating power 1.4 W / 1.8 W 1.8 W

Expected
life (min.
operations)

Mechanical (at 120 cpm) 10

6

5 ×

10

5

Electrical

20 A
(1.4 W, 1.8 W type)

10

5

(ON: 2s, OFF: 2s)

10

5

(ON 2s, OFF 2s) 10

5

30 A
(1.8 W type)

2 × 10

4

(ON: 3s, OFF: 15s)

CA

384

Characteristics (at 20 ° C 68 ° F )

Electrical life (min. operation)

Remarks

* Specifications will vary with foreign standards certification ratings.
*

1

Detection current: 10 mA

*

2

Excluding contact bounce time

*

3

Half-wave pulse of sine wave: 11ms; detection time: 10 µ s

*

4

Half-wave pulse of sine wave: 6ms

*

5

Detection time: 10 µ s

*

6

Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 61)

Type 12 V DC 24 V DC
Max. operating speed

15 cpm 1.4 W type: at nominal load

1.8 W type: at 20 A

15 cpm (at nominal load)

Initial insulation resistance Min. 10 Ω at 500 V DC
Initial breakdown

voltage*

1

Between open contacts

500 V rms for 1 min.

Between contacts and coil

500 V rms for 1 min.

Operate time*

2

(at nominal voltage) Max. 10 ms at 20 ° C Max. 10 ms

Release time (without diode)*

2

(at nominal voltage)

Max. 10 ms at 20 ° C Max. 10 ms

Shock resistance

Functional Min. 200 m/s

2

{20 G} Min. 100 m/s

2

{10 G} Min. 100 m/s

2

{10 G}*

3

Destructive*

4

Min. 1,000 m/s

2

{100 G}

Vibration resistance

Functional*

5

Rubber bracket A type: Min. 100 m/s

2

{10 G}, 50 to 500Hz

Direct coupling type or Screw-mounting type: Min. 44.1 m/s

2

{4.5 G}, 10 to 100 Hz

Min. 44.1 m/s

2

{4.5 G},

10 to 100Hz

Destructive

Rubber bracket A type: Min. 100m/s

2

{10 G},50 to 500Hz

Direct coupling type or Screw-mounting type: Min. 44.1 m/s

2

{4.5 G}, 10 to 100 Hz

Min. 44.1 m/s

2

{4.5 G},

10 to 500Hz

Conditions for operation,
transport and storage*

6

(Not freezing and condensing
low temperature)

Ambient
temp.

–30 ° C to +80 ° C –22 ° F to +176 ° F

Humidity 5 to 85% R.H.

Water-proof standard Plastic sealed type: JIS DO203S2, Dust cover type: JIS DO203R2 JIS DO203S2

Unit weight

Rubber bracket A type : 23 g .81 oz
Direct coupling type or Screw-mounting type:
19 g .67 oz

31 g 1.09 oz

Nominal coil voltage, V DC

Motor load

(operating frequency ON: 2 s, OFF: 2 s)

Halogen lamp load

(operating frequency ON: 1 s, OFF: 14 s)

1 Form A, 1 Form B 12 10

5

, 20 A 12 V DC 10

5

, 20 A 12 V DC

1 Form C

12 10

5

, 20 A 12 V DC 10

5

, 20 A 12 V DC

24 10

5

, 10 A 24 V DC 10

5

, 6 A 24 V DC

ORDERING INFORMATION

CA 1a F S 12 V A 5

Contact

arrangement

Notes: 1. Type with resistor/diode inside are available as options. Please consulf our sales office.

2. Standard packing: Carton: 20 pcs. Case: 200 pcs.

Mounting method

Classification by type

1a: 1 Form A
1b: 1 Form B
1 : 1 Form C

Protective construction

Nil: Plastic sealed type
F: Dust cover type

Coil voltage

(DC)

12 V
24 V (1 Form C only)

Nil: 1 Form C
5: 1 Form A or

1 Form B

Nominal operating power

Nil: Standard type (1.8 W)
S: Low operating power type (1.4 W)
(1 Form A, 1 Form B)

A: Rubber bracket A type

A: (1 Form A, 1 Form B)

N: Screw mounting type
C: Direct coupling type

COIL DATA

1) Standard type

Contact

arrangement

Mounting type

Plastic sealed

type

Dust cover type

Nominal
voltage,

V DC

Pick-up voltage,

V DC (max.)

(at 20

°

C 68 ° F)

Drop-out

voltage, V DC

(min.)

(at 20

°

C 68 ° F)

Nominal oper-

ating current,

mA (

±

10%)

(at 20

°

C 68 ° F)

Coil resistance,

Ω ( ±

10%)

(at 20

°

C 68 ° F)

Nominal

operating

power, mW

(at 20

°

C 68 ° F)

Usable
voltage

range, V

DC

1 Form A

Rabber bracket A CA1a-12V-A-5 CA1aF-12V-A-5 12 8 0.6 to 6 150 80 1.8 10 to 16
Screw-mounting CA1a-12V-N-5 CA1aF-12V-N-5 12 8 0.6 to 6 150 80 1.8 10 to 16
Direct coupling CA1a-12V-C-5 CA1aF-12V-C-5 12 8 0.6 to 6 150 80 1.8 10 to 16

1 Form B

Rabber bracket A CA1b-12V-A-5 CA1bF-12V-A-5 12 8 0.6 to 6 150 80 1.8 10 to 16
Screw-mounting CA1b-12V-N-5 CA1bF-12V-N-5 12 8 0.6 to 6 150 80 1.8 10 to 16
Direct coupling CA1b-12V-C-5 CA1bF-12V-C-5 12 8 0.6 to 6 150 80 1.8 10 to 16

1 Form C

Screw-mounting CA1-DC12V-N – 12 8 0.6 150 80 1.8 10 to 15
Direct coupling CA1-DC12V-C – 12 8 0.6 150 80 1.8 10 to 15
Screw-mounting CA1-DC24V-N – 24 16 1.2 75 320 1.8 20 to 30
Direct coupling CA1-DC24V-C – 24 16 1.2 75 320 1.8 20 to 30

()

CA

385

2) Low operating power type

DIMENSIONS

1. 1 Form A/1 Form B
Rubber bracket A type

Contact

arrangement

Mounting type

Plastic sealed

type

Dust cover type

Nominal
voltage,

V DC

Pick-up voltage,

V DC (max.)

(at 20

°

C 68 ° F)

Drop-out

voltage, V DC

(min.)

(at 20

°

C 68 ° F)

Nominal oper-

ating current,

mA (

±

10%)

(at 20

°

C 68 ° F)

Coil resistance,

Ω ( ±

10%) (at

20

°

C 68 ° F)

Nominal

operating

power, mW

(at 20

°

C 68 ° F)

Usable
voltage

range, V

DC

1 Form A

Rabber bracket A CA1aS-12V-A-5 CA1aFS-12V-A-5 12 8 0.6 to 6 120 100 1.4 10 to 16
Screw-mounting CA1aS-12V-N-5 CA1aFS-12V-N-5 12 8 0.6 to 6 120 100 1.4 10 to 16
Direct coupling CA1aS-12V-C-5 CA1aFS-12V-C-5 12 8 0.6 to 6 120 100 1.4 10 to 16

1 Form B

Rabber bracket A CA1bS-12V-A-5 CA1bFS-12V-A-5 12 8 0.6 to 6 120 100 1.4 10 to 16
Screw-mounting CA1bS-12V-N-5 CA1bFS-12V-N-5 12 8 0.6 to 6 120 100 1.4 10 to 16
Direct coupling CA1bS-12V-C-5 CA1bFS-12V-C-5 12 8 0.6 to 6 120 100 1.4 10 to 16

21.5

.846

19.5

.768

9

.354

37

1.457

14.4

.567

17.4

.685

10

.394

15

.591

2.5

.098

6

.236

21.5

.846

17

.669

0.8

.031

15.4

.606

12.4

.488

5.5

.217

2.4

.094

1.5

.059

2

.079

Sealed with
epoxy resin

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

mm inch

SCHEMATIC (Bottom View)

1 Form A

Including load

(1 Form A)

Including diode

(1 Form C)

1 Form B

Including diode type, including load type also available.

2. 1 Form A/1 Form B
Screw-mounting type

14

.551

9

.354

2 .079

17.4

.685

21.5 .846

3 .118

14.4

.567

6 .236

0.8

.031

15.4

.606

12.4

.488

5.5

.217

2.4

.094

17.5

.689

37

1.457

7

.276

R10

6.5 dia. hole

+0.3

–0

.256 dia.

+.012

–0

Sealed with
epoxy resin

19.5 .768

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 load

(1 Form A)

Including diode

(1 Form C)

1 Form B

Including diode type, including load type also available.

CA

386

3. 1 Form A/1 Form B
Direct coupling type

21.5

.846

9

.354

17.4

.685

14.4

.567

6 .236

0.8

.031

15.4

.606

12.4

.488

5.5

.217

2.4

.094

37

1.457

Sealed with
epoxy resin

19.5 .768

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

mm inch

SCHEMATIC (Bottom View)

1 Form A

Including load

(1 Form A)

Including diode

(1 Form C)

1 Form B

Including diode type, including load type also available.

4. 1 Form C
Screw-mounting type

14

.551

23.4

.921

19.4

.764

31.2 1.228

4

.157

2

.079

5.5

.217

2.4

.094

0.8

.031

12.2

.480

12

.472

40

1.575

59

2.323

28

1.102

R10

6.6 dia. hole

.260 dia.

28.4 1.118

20

.787

9

.3549.354

6

.236

11.4

.449

Sealed with
epoxy resin

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)

Including diode type, including load type also available.

Including load

(1 Form C)

Including diode

(1 Form A)

1 Form C

5. 1 Form C
Direct coupling type

19.4

.764

5.5

.217

2.4

.094

0.8

.031

12.2

.480

40

1.575

28

1.102

9

.3549.354

6

.236

11.4

.449

Sealed with
epoxy resin

23.4

.921

31.2 1.228

28.4 1.118

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)

Including diode type, including load type also available.

Including load

(1 Form C)

Including diode

(1 Form A)

1 Form C

CA

387

REFERENCE DATA

1. Coil temperature rise

Tested sample: CA1aS-12V-N-5, 5 pcs.
Point measured: Inside the coil
Contact carrying current: 20A
Ambient temperature: Room temperature,
85°C 185°F

2. Electrical life test (Motor load)

Tested sample: CA1a-12V-N-5, 5 pcs.
Load: Steady 30A, Inrush 150A, 12V DC
Operate frequency: ON 3s, OFF 15s
Ambient temperature: Room temperature

12 14 16

140

120

100

80

60

40

20

0

85°C

185°F

Room
temperature

Temperature rise, °C

Coil applied voltage, V

0

2

4

6

8

10

02

X

X

Max.

Max.

Min.

Min.

Pick-up and drop-out voltage, V

No. of operations, ×10

4

Contact welding: 0 times
Miscontact: 0 times

Pick-up voltage

Drop-out voltage

For Cautions for use, see Relay Technical Information (Page 48 to 76).

9/1/2000 All Rights Reserved, © Copyright Matsushita Electric Works, Ltd.

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