JJ-M
COMPACT SIZE
AUTOMOTIVE RELAY
JJ-M RELAYS
FEATURES
TYPICAL APPLICATIONS
• Compact size
• Perfect for automobile electrical
systems
Over 2  105 openings possible with a
14 V DC motor load, an inrush current
of 25 A, and steady state current of 5 A.
(N.O. side)
• Standard terminal pitch employed
The terminal array used is identical to
that used in small automotive relays.
• Plastic sealed type.
Plastically sealed for automatic
cleaning.
• Line-up of 1 Form A and 1 Form C
• Power windows
• Auto door lock
• Electrically powered sun roof
• Electrically powered mirror
• Cornerring lamp, etc.
ORDERING INFORMATION
JJM
Contact arrangement
1: 1 Form C
1a: 1 Form A
Coil voltage (DC)
12 V
TYPES
Contact arrangement
Coil voltage
Part No.
1 Form A
12 V DC
JJM1a-12V
1 Form C
12 V DC
JJM1-12V
Standard packing; Carton (tube): 50 pcs.; Case: 1,000 pcs.
RATING
1. Coil data
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
(at 20C 68F)
Usable voltage range
12V DC
Max. 7.2 V DC
(Initial)
Min. 1.0 V DC
(Initial)
53.3 mA
225
640 mW
10 to 16V DC
Note: Other pick-up voltage types are also available. Please contact us for details.
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JJ-M
2. Specifications
Characteristics
Item
Specifications
Arrangement
Contact
1 Form A
1 Form C
Contact resistance (Initial)
Typ 5m (By voltage drop 6V DC 1A)
Contact material
Ag alloy (Cadmium free)
Nominal switching capacity
(resistive load)
N.O.: 35 A (at 20C 68F for 2 minutes), 25 A (at 20C 68F for 1 hour),
30 A (at 85C 185F for 2 minutes), 20 A (at 85C 185F for 1 hour)
Max. carrying current (12V DC)*3
Rating
N.O.: 20 A 14V DC
N.C.: 10 A 14V DC
20 A 14V DC
Nominal operating power
640 mW
Min. switching capacity
(resistive load)*1
1 A 12V DC
Insulation resistance (Initial)
Electrical
characteristics
Breakdown
voltage (Initial)
Min. 100 M (at 500V DC, Measurement at same location as “Break down voltage” section)
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)
Max. 10ms (at 20C 68F, excluding contact bounce time) (Initial)
Release time (at nominal voltage)
Shock
resistance
Mechanical
characteristics
Vibration
resistance
Max. 10ms (at 20C 68F, excluding contact bounce time) (Initial)
Min. 100 m/s2 {10G} (Half-wave pulse of sine wave: 11ms; detection time: 10s)
Functional
Destructive
Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
Functional
10 Hz to 100 Hz, Min. 44.1 m/s2 {4.5G} (Detection time: 10s)
Destructive
10 Hz to 500 Hz, Min. 44.1 m/s2 {4.5G},
Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours
Min. 107 (at 120 cpm)
Mechanical
Expected life
<Resistive load>
Min. 105 (at nominal switching capacity)
(operating frequency: 1s ON, 9s OFF)
<Motor load>
Min. 2  105 (at Inrush 25A, Steady 5A 14 V DC)
Min. 5  104 (at 20A 14 V DC motor lock)
(operating frequency: 0.5s ON, 9.5s OFF)
Electrical
Ambient temperature: –40C to +85C –40F to +185F,
Humidity: 5% R.H. to 85% R.H. (Not freezing and condensing at low temperature)
Conditions for operation, transport and
storage*2
Conditions
<Resistive load>
N.O.: Min. 105 (at nominal switching capacity)
N.C.: Min. 105 (at nominal switching capacity)
(operating frequency: 1s ON, 9s OFF)
<Motor load>
N.O.: Min. 2  105 (at Inrush 25A, Steady 5A 14 V DC),
Min. 5  104 (at 20A 14 V DC motor lock)
N.C.: Min. 2  105 (at 20A 14 V DC brake currect)
(operating frequency: 0.5s ON, 9.5s OFF)
Max. operating speed
6 cpm (at nominal switching capacity)
Mass
Approx. 5g .176 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 “6. Usage, Storage and Transport
Conditions“ in AMBIENT ENVIRONMENT section in Relay Technical Information.
Please inquire if you will be using the relay in a high temperature atmosphere (110C 230F).
*3. Depends on connection conditions. Also, this does not guarantee repeated switching. We recommend that you confirm operation under actual conditions.
REFERENCE DATA
1. Coil temperature rise
Sample: JJM1-12V, 6pcs
Point measured: Inside the coil
Contact current: Non current through
contact, 5A, 10A, 15A, 20A
Resistance method, ambient temperature 85C 185F
2. Max. switching capability
(Resistive load, initial)
(N.O. side: room temperature)
120
40
20A
100
15A
80
10A
5A
Non current
through
contact
60
40
Coil applied voltage, VDC
60
Switching voltage, VDC
Temperature rise, °C
3. Ambient temperature and operating voltage
range
50
40
30
20
35
30
25
20
15
10
20
10
0
0
12
14
16
Coil applied voltage, V
2
5
0
10
20
30
40
Switching current, A
50
0
−40 −20
Pick-up voltage
(cold start)
0
20 40 60 8085 100 120
Ambient temperature, °C
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JJ-M
4. Distribution of pick-up and drop-out voltage
5. Distribution of operate time
6. Distribution of release time
Sample: JJM1-12V, 100pcs
Sample: JJM1-12V, 100pcs
Sample: JJM1-12V, 100pcs
* Without diode
Pick-up voltage
Drop-out voltage
50
Quantity, n
Quantity, n
60
40
70
70
60
60
50
50
Quantity, n
70
40
40
30
30
30
20
20
20
10
10
10
0
0
1.5
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 7.0 7.5
2.0
2.5
3.0
3.5
4.0
4.5
0
5.0
0
0.5
1.0
1.5
Time, ms
Voltage, V
2.0
2.5
3.0
3.5
Time, ms
7-(1). Electrical life test (at resistive load)
Sample: JJM1-12V
Quantity: n = 6 (NC = 3, NO = 3)
Load: Resisitive load (NC side: 10A 14 V DC, NO
side: 20 A 14 V DC); Operating frequency: ON 1s,
OFF 9s
Ambient temperature: Room temperature
Pick-up and drop-out voltage, V
7
Contact welding: 0 time
Miscontact: 0 time
6
5
Max.
X
Min.
Pick-up voltage
4
3
Drop-out voltage
Max.
2
X
Min.
1
0
0
5
10
No. of operations, × 104
Change of pick-up and drop-out voltage
Circuit :
Tested sample
8
Pick-up and drop-out voltage, V
Sample: JJM1-12V, 6pcs.
Load: Inrush 25A, Steady 5A, Brake current 18A 14V
DC, Power window motor load (Free condition).
Operating frequency: ON 0.5s, OFF 9.5s
Ambient temperature: Room temperature
Change of contact resistance
50
Contact welding: 0 time
Miscontact: 0 time
7
Max.
X
Min.
6
5
Pick-up voltage
4
Drop-out voltage
3
Max.
X
Min.
2
Contact resistance, mΩ
7-(2). Electrical life test (Motor free)
N.C. side
N.O. side
40
30
20
Max.
X(N.C.)
Min.
Max.
X(N.O.)
Min.
10
M
1
0
5
No. of operations, × 104
Circuit :
Tested sample
Pick-up and drop-out voltage, V
Sample: JJM1-12V, 6pcs.
Load: 20A, 14VDC,
Power window motor actual load (lock condition).
Operating frequency: ON 1s, OFF 5s
Ambient temperature: Room temperature
7
Contact welding: 0 time
Miscontact: 0 time
6
5
10
20
Change of contact resistance
50
Max.
X
Min.
Pick-up voltage
4
Drop-out voltage
3
0
No. of operations, × 104
Change of pick-up and drop-out voltage
7-(3). Electrical life test (Motor lock)
0
10
Max.
X
Min.
2
Contact resistance, mΩ
0
N.C. side
N.O. side
40
30
20
Max.
Max.
X(N.C.)
X(N.O.)
Min.
10
M
1
0
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0
2.5
No. of operations, × 104
5
0
0
2.5
5
No. of operations, × 104
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JJ-M
Change of pick-up and drop-out voltage
7-(4). Electrical life test (Lamp load)
Sample: JJM1-12V, 6pcs.
Load: 27W+21W, steady min. 4A, Lamp actual load
Operating frequency: ON 2s, OFF 13s
Ambient temperature: Room temperature
Change of contact resistance
Circuit :
50
N.C. side
N.O. side
9
Contact resistance, mΩ
Pick-up and drop-out voltage, V
10
8
Pick-up voltage
7
Max.
X
Min.
6
5
4
Drop-out voltage
3
Max.
X
Min.
2
40
30
20
Max.
Max.
X(N.O.)
X(N.C)
Min.
Min.
10
1
0
0
5
0
10
0
5
10
No. of operations, × 104
No. of operations, × 104
Load current waveform
Inrush current: 42A, Steady current: 4.4A
10A
10ms
DIMENSIONS (mm inch)
CAD Data
Data from our Web site.
Download CAD
External dimensions
CAD Data
15.5
.610
Schematic (Bottom view)
PC board pattern (Bottom view)
1a
1a
12
.472
13.9
.547
3-1.4 dia.
3-.055 dia.
NO
COM
COIL
0.4
.016
3.5
.138
2.5
.098
A
2-0.3
2-.012
2-0.4
2-.016
1c
10.0 1.2
.394 .047
4-1.4 dia.
4-.055 dia.
NO
10.2
.402
4-1.0
4-.039
1.6±0.3
.063±.012
COIL
NC
10.0
.394
1.5 dia.
.059 dia.
2.5
.098
* Dimensions (thickness and width) of terminal is measured before pre-soldering.
Intervals between terminals is measured at A surface level.
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
10.2
.402
1c
COM
0.3
.012
2.5
.098
10.0
.394
1.5 dia.
.059 dia.
General tolerance
0.1 .004
0.2 .008
0.3 .012
10.2
.402
Tolerance: 0.1 .004
Note:  Marked terminal is only for 1 Form C type
For Cautions for Use, see Relay Technical Information.
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