TWIN POWER SILENT
AUTOMOTIVE RELAY
CR RELAYS
FEATURES
• Silent
24.6
.969
17.0
.669
board layout
Noise has been reduced by
approximately 20 dB, using our own
silencing design.
18.5
.728
Common
Coil
• Twin (1 Form C × 2)
Coil
Forward/reverse motor control is possible
with a single relay.
mm inch
Normally
Open
Normally
Closed
• Sealed construction
• Simple footprint enable ease of PC
RoHS Directive compatibility information
SPECIFICATIONS
Contact
Characteristics
Arrangement
1 Form C × 2
Ag alloy (Cadmium free)
Max. operating speed
(at nominal switching capacity)
Initial insulation resistance*4
6 cpm
Contact material
Min. 100 MΩ (at 500 V DC)
Initial contact resistance (Initial)
(By voltage drop 6 V DC 1A)
Typ. 6 mΩ (N.O.)
Typ. 9 mΩ (N.C.)
Max. 0.2V (at 10 A)
Between open
contacts
500 Vrms for 1 min.
Initial breakdown
voltage*5
Contact voltage drop
Between contacts
and coil
Nominal switching
capacity
N.O.: 20 A 14 V DC
N.C.: 10 A 14 V DC
500 Vrms for 1 min.
Max. 10 ms (initial)
Max. 10 ms (initial)
Operate time*6
(at nominal voltage)(at 20°C68°F)
Release time*6
(at nominal voltage)(at 20°C68°F)
35 A for 2 minutes,
25 A for 1 hour
(12 V, at 20°C68°F)
30 A for 2 minutes,
20 A for 1 hour
Rating
Max. carrying current
Functional*7
Destructive*8
Min. 100 m/s2 {10G}
Min. 1,000 m/s2 {100G}
(12 V, at 85°C185°F)
Shock resistance
Min. switching capacity#1
Mechanical (at 120 cpm)
1 A 12 V DC
Min. 107
Min. 105*1
Min. 2×105*2
Min. 105*3
10 Hz to 100 Hz,
Functional*9
Vibration resistance
Min. 44.1 m/s2 {4.5G}
Resistive load
Expected life
(min. operations)
10 Hz to 500 Hz,
Destructive*10
Electrical
Min. 44.1 m/s2 {4.5G}
Motor load
Conditions for
Ambient
–40°C to +85°C
–40°F to +185°F
operation, transport
temperature
and storage*11
Coil
(Not freezing and
condensing at low
temperature)
Nominal operating power
640 mW
Humidity
5% R.H. to 85% R.H.
Approx. 12.5g.44 oz
#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.
Mass
Remarks
1
10
*
*
At nominal switching capacity, operating frequency: 1s ON, 9s OFF
N.O.: at 5 A (steady), 25 A (inrush)/N.C.: at 20 A (brake) 14 V DC, operating
frequency: 0.5s ON, 9.5s OFF
*
Time of vibration for each direction;
X, Y, direction: 2 hours
2
Y
X
Z direction: 4 hours
Z
3
4
5
6
7
8
9
*
*
*
*
*
*
*
At 20A 14 V DC (Motor lock), operating frequency: 0.5s ON, 9.5s OFF
Measurement at same location as “Initial breakdown voltage” section
Detection current: 10mA
11
Excluding contact bounce time
ENVIRONMENT.
Please inquire if you will be using the relay in a high temperature atmosphere
(110°C 230°F).
Half-wave pulse of sine wave: 11ms; detection: 10µs
Half-wave pulse of sine wave: 6ms
Detection time: 10µs
TYPICAL APPLICATIONS
ORDERING INFORMATION
• Power windows
Ex. CR
2
–
12 V
• Auto door lock
• Electrically powered sunroof
• Electrically powered mirror, etc.
Contact arrangement
Coil voltage(DC)
12 V
1 Form C × 2
Standard packing: Carton(tube package) 32pcs. Case: 800pcs.
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CR
REFERENCE DATA
1-(1). Coil temperature rise (at room
temperature)
1-(2). Coil temperature rise (at 85°C 185°F)
2. Max. switching capability (Resistive load,
initial)
Sample: CR2-12V, 5pcs
Contact carrying current: 10A, 15A
Ambient temperature: 85°C 185°F
Sample: CR2-12V, 5pcs
Contact carrying current: 10A, 15A, 20A
Ambient temperature: Room temperature
(N.O. side Room temperature)
60
50
40
200
160
120
200
160
20A
15A
10A
120
15A
30
20
10
0
80
80
10A
40
0
40
0
12
14
16
12
14
16
0
10
20
30
40
50
Switching current, A
Coil applied voltage, V
Coil applied voltage, V
3. Ambient temperature and operating
temperature range
4. Ambient temperature characteristics
5. Distribution of pick-up and drop-out voltage
Sample: CR2-12V, 100pcs
70
40
35
80
Pick-up voltage
Pick-up voltage upper limit
70
Drop-out voltage
60
50
40
30
20
10
0
30
25
20
15
10
60
50
40
30
20
Pick-up voltage lower limit
10
5
Pick-up voltage
(Cold start)
0
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 7.5
Voltage, V
–40 –20
0
20 40 60 8085 100 120
–40 –20
0
20
40
60
80 100
Ambient temperature, °C
Ambient temperature, °C
6. Distribution of operate time
Sample: CR2-12V, 100pcs
7. Distribution of release time
Sample: CR2-12V, 100pcs
* With diode
100
90
80
70
60
50
40
30
20
10
100
90
80
70
60
50
40
30
20
10
0
0
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
Time, ms
Time, ms
8-(1). Operation noise distribution
When operated
8-(2). Operation noise distribution
When released
Measuring conditions
Sample: CR2-12 V, 50 pcs.
Equipment setting: “A” weighted, Fast, Max. hold
Coil voltage: 12V DC
Coil connection device: Diode
Background noise: Approx. 20dB
50
40
30
20
10
0
50
40
30
20
Microphone
Relay
50mm
1.969inch
10
Sponge
0
36 38 40 42 44 46 48 50 52
Noise level, dB
40 42 44 46 48 50 52 54 56
Noise level, dB
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CR
9-(1). Electrical life test (Motor free)
Change of pick-up and drop-out voltage
Change of contact resistance
Sample: CR2-12V, 3pcs
Load: Inrush current: 25A, Steady current: 6A,
Brake current: 15A,
power window motor actual load (free condition)
Tested voltage: 14V DC
10
9
50
N.C. side
N.O. side
40
8
Ambient temperature: Room temperature
Pick-up voltage
7
Max.
X
Circuit
30
20
10
Min.
6
5
4
Drop-out voltage
Max.
X
Min.
14VDC
3
2
Max.
M
X(N.C.)
Max.
X(N.O.)
Min.
1
0
Min.
0
0
0
10
20
10
No. of operations, × 104
No. of operations, × 104
Load current waveform
Inrush current: 25A, Steady current: 6A,
Brake current: 15A
Tested voltage: 14V DC
10A
100ms
9-(2). Electrical life test (Motor lock)
Change of pick-up and drop-out voltage
Change of contact resistance
Sample: CR2-12V, 3pcs
Brake current: 22A,
power window motor actual load (lock condition)
Tested voltage: 14V DC
Switching frequency: (ON:OFF = 0.5s:9.5s)
Ambient temperature: Room temperature
50
40
10
9
N.C. side
N.O. side
8
7
6
5
4
Pick-up voltage
Drop-out voltage
Max.
X
Circuit
30
20
Min.
Max.
X
Min.
14VDC
3
2
M
Max.
X
10
0
Max.
Min.
X
1
0
Motor
Min.
0
5
10
0
5
10
No. of operations, × 104
No. of operations, × 104
Load current waveform
Brake current: 22A
Tested voltage: 14V DC
5A
100ms
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