ACNM3112 (Panasonic)
MIDDLE LOAD RELAY

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MIDDLE LOAD RELAY
FOR SMART J/B
CN-M (ACNM)
CN-M RELAYS (ACNM)
New
Compliance with RoHS Directive
FEATURES
1. Best space savings in its class.
2. Compact and high-capacity 30A
load switching.
3. Full line up (High heat-resistant type
and SMD type)
4. Terminals for PC board pattern
designs are easily allocated.
TYPICAL APPLICATIONS
Defogger, Seat heater, Head lamp, Fog
lamp, Fan motor, etc.
ORDERING INFORMATION
ACNM
CN-M relay
Contact arrangement*1
1: 1 Form C
3: 1 Form A
5: 1 Form C high heat-resistant type
7: 1 Form A high heat-resistant type
Pick-up voltage
1: Max. 7.2V DC
Coil voltage (DC)
12: 12V
Terminal shape
Nil: PC board terminal
SA: Surface-mount terminal
Packing style*2
Nil: Tube packing
X: Tape and reel packing
(Reverse NO terminal direction in pull-out direction)
Z: Tape and reel packing
(Normal NO terminal direction in pull-out direction)
Notes: *1. Surface-mount terminal type is available in high heat-resistant type only.
*2. Tube packing: PC board terminal type only
Tape and reel packing: Surface-mount type only
TYPES
1. PC board terminal type
Contact arrangement
Nominal coil voltage
1 Form A
1 Form C
12V DC
Standard packing; Carton (tube): 50 pcs.; Case: 1,500 pcs.
Standard type
ACNM3112
ACNM1112
Part No.
High heat-resistant type
ACNM7112
ACNM5112
2. Surface-mount terminal type
Contact arrangement
Nominal coil voltage
Part No.
High heat-resistant type
1 Form A
1 Form C
12V DC
ACNM7112SAX
ACNM7112SAZ
ACNM5112SAX
ACNM5112SAZ
Standard packing; Carton (tape and reel): 200 pcs.; Case: 600 pcs.
Notes: *1. Surface-mount terminal type is available in high heat-resistant type only.
*2. An “X” at the end of the part number indicates, for tape and reel packing, reverse NO terminal direction in pull-out direction.
A “Z” at the end of the part number indicates, for tape and reel packing, normal NO terminal direction in pull-out direction.
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
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ACNM3112 (Panasonic)
MIDDLE LOAD RELAY

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CN-M (ACNM)
RATING
1. Coil data
Nominal coil voltage
12 V DC
Pick-up voltage
(at 20°C 68°F)
Max. 7.2 V DC
(Initial)
Drop-out voltage
(at 20°C 68°F)
Min. 1.0 V DC
(Initial)
Nominal operating
current [±10%]
(at 20°C 68°F)
53.3 mA
Coil resistance
[±10%]
(at 20°C 68°F)
225
Nominal operating
power
(at 20°C 68°F)
640 mW
Usable voltage range
10 to 16 V DC
2. Specifications
Characteristics
Item
Specifications
Contact
Arrangement
Contact resistance (Initial)
Contact material
1 Form A, 1 Form C
Typical 5m(By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
Nominal switching capacity (resistive load)
N.O.: 30A 14V DC, N.C.: 15A 14V DC
Rating
Max. carrying current (at 14V DC)
Nominal operating power
N.O.
30A/1 h, 40A/2 min. at 20°C 68°F
25A/1 h, 35A/2 min. at 85°C 185°F
20A/1 h, 30A/2 min. at 110°C 230°F (High heat-resistant type)
N.C.
25A/1 h, 30A/2 min. at 20°C 68°F
20A/1 h, 25A/2 min. at 85°C 185°F
15A/1 h, 20A/2 min. at 110°C 230°F (High heat-resistant type)
640 mW
Electrical
characteristics
Mechanical
characteristics
Min. switching capacity (resistive load)*
Insulation resistance (Initial)
Breakdown
voltage (Initial)
Between open contacts
Between contacts and coil
Operate time (at nominal voltage)
Release time (at nominal voltage)
Functional
Shock resistance
Destructive
Vibration
resistance
Functional
Destructive
1A 12V DC
Min. 100 M(at 500 V DC)
500 Vrms for 1 min. (Detection current: 10mA)
500 Vrms for 1 min. (Detection current: 10mA)
Max. 10ms (at 20°C 68°F, excluding contact bounce time) (Initial)
Max. 10ms (at 20°C 68°F, excluding contact bounce time) (Initial) (without diode)
Min. 100 m/s2 {10G} (Half-wave pulse of sine wave: 11ms; detection time: 10µs)
Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
10 Hz to 100 Hz, Min. 44.1m/s2 {4.5G} (Detection time: 10µs)
10 Hz to 500 Hz, Min. 44.1m/s2 {4.5G}
Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours
Mechanical
Min. 107 (at 120 cpm)
Expected life
Conditions
Electrical
Conditions for operation, transport and storage
<Resistive load>
Min. 105 (At nominal switching capacity, operating frequency: 1s ON, 2s OFF)
<Motor load>
Min. 2×105: at 80 A (inrush), 16 A (steady), 14 V DC (Operating frequency: 2s ON, 6s OFF)
<Lamp load>
Min. 105: at 84 A (inrush), 12 A (steady), 14 V DC (Operating frequency: 1s ON, 14s OFF)
Standard type; Ambient temp: –40°C to +85°C –40°F to +185°F, Humidity: 5 to 85% R.H.
High heat-resistant type; Ambient temp: –40°C to +110°C –40°F to +230°F, Humidity: 2 to 85% R.H.
(Not freezing and condensing at low temperature)
Unit weight
Approx. 5.5 g .19 oz
Note: * 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.
REFERENCE DATA
1-(1). Coil temperature rise
Sample: ACNM1112, 3pcs
Measured portion: Inside the coil
Contact carrying current: 10A, 20A, 30A
Ambient temperature: 26°C 78.8°F
140
120 30A
100
80 20A
10A
60
40
20
0
10 12 14 16 18
Coil applied voltage, V
1-(2). Coil temperature rise
Sample: ACNM7112, 3pcs
Measured portion: Inside the coil
Contact carrying current: 10A, 20A
Ambient temperature: 110°C 230°F
140
120
100
80
20A
60
10A
40
20
0
10 12 14 16 18
Coil applied voltage, V
2. Ambient temperature and operating voltage
range
20
15
10
5
Pick-up voltage (cold start)
0
-40 -20
0 20 40 60 80 100 120
Ambient temperature, °C
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ACNM3112 (Panasonic)
MIDDLE LOAD RELAY

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3. Distribution of pick-up and drop-out voltage
Sample: ACNM1112, 20pcs.
20
Pick-up voltage
Drop-out voltage
15
4. Distribution of operate and release time
Sample: ACNM1112, 20pcs.
20
Operate time
Release time
15
10 10
55
0
0 1 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Voltage, V
0
0 1 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Time, ms
CN-M (ACNM)
5-(1). Electrical life test (Resistive load)
Sample: ACNM1112, 3pcs.
Load: Resistive load (NO side: 30A 14V DC)
Operating frequency: (ON:OFF = 1s:1s)
Ambient temperature: Room temperature
Circuit:
14V DC
Change of pick-up and drop-out voltage
7
Contact welding: 0 time
Miscontact: 0 time
6
Max.
5
Pick-up voltage
x
Min.
4
3
Max.
2x
Drop-out voltage
Min.
1
0
0 5 10
No. of operations, × 104
Change of contact resistance
30
25
20
15
10
5
Max.
x
Min.
0
0 5 10
No. of operations, × 104
5-(2). Electrical life test (Motor load)
Sample: ACNM7112, 3pcs.
Load: inrush: 80A/steady: 16A,
radiator fan actual load (motor free)
Switching frequency: (ON:OFF = 2s:6s)
Ambient temperature: 110°C 230°F
Circuit:
14V DC
M
Change of pick-up and drop-out voltage
7
Contact welding: 0 time
6 Miscontact: 0 time Max.
x
5 Pick-up voltage Min.
4
3 Max.
x
2 Drop-out voltage Min.
1
0
0 10 20
No. of operations, × 104
Change of contact resistance
30
25
20
15
10
5 Max.
x
Min.
0
0 10 20
No. of operations, × 104
5-(3). Electrical life test (Lamp load)
Sample: ACNM3112, 3pcs.
Load: inrush: 84A/steady: 12A
Switching frequency: (ON:OFF = 1s:14s)
Ambient temperature: Room temperature
Circuit:
14V DC
60W
60W
Change of pick-up and drop-out voltage
7
6
Max.
x
Min.
5 Pick-up voltage
4
Contact welding: 0 time
Miscontact: 0 time
3
Max.
x
2 Min.
Drop-out voltage
1
0
0 5 10
No. of operations, × 104
Change of contact resistance
30
25
20
15
10
5 Max.
x
Min.
0
0 5 10
No. of operations, × 104
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ACNM3112 (Panasonic)
MIDDLE LOAD RELAY

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CN-M (ACNM)
DIMENSIONS (Unit: mm inch)
1. PC board terminal type
External dimensions
15.5
.610
11
.433
1.2
.047
1.2
.047 1.2
.047
14.4
.567
A
3.5
.138
Pre-soldering
0.4
.016
8
.315
2.95
.116
10.95
.431
4.65
.183
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
PC board pattern
(Bottom view)
1 Form A
10.95
.431
4.65
.183
8
.315
5×1.5+00.1 dia.
5×.059+.0004 dia.
1 Form C
10.95
.431
4.65
.183
8
.315
6×1.5+00.1 dia.
6×.059+.0004 dia.
Schematic
(Bottom view)
1 Form A
COM COIL NC
COM COIL NO
1 Form C
COM COIL NC
COM COIL NO
* Dimensions (thickness and width) of terminal specified in this catalog is measured before pre-soldering.
Intervals between terminals is measured at A surface level.
Tolerance: ±0.1 ±.004
2. Surface-mount terminal type
External dimensions
15.5
.610
11
.433
14.4
.567
1.2
.047
1.2
.047 1.2
.047
Pre-soldering
14.8
.583
Recommended mounting pad
(Top view)
Schematic
(Top view)
1 Form A
15.1
.594
5×1.7
5×.067
10.95
.431
4.65
.183
4.6
.181
1 Form A
COM COIL NO
11.2
.441
COM COIL
0.1
8
.315
2.95
.116
10.95
.431
4.65
.183
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
1 Form C
6×1.7
6×.067
4.6
.181
10.95
.431
4.65
.183
11.2
.441
1 Form C
COM COIL NO
COM COIL NC
Tolerance: ±0.1 ±.004
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ACNM3112 (Panasonic)
MIDDLE LOAD RELAY

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NOTES
1. Coil operating power
Pure DC current should be applied to the
coil. The wave form should be
rectangular. If it includes ripple, the ripple
factor should be less than 5%. However,
check it with the actual circuit since the
characteristics may be slightly different.
2. Coil applied voltage
To ensure proper operation, the voltage
applied to the coil should be the rated
operating voltage of the coil. Also, be
aware that the pick-up and drop-out
voltages will fluctuate depending on the
ambient temperature and operating
conditions.
3. Cycle lifetime
Check this with the real device as it is
affected by coil driving circuit, load type,
activation frequency, activation phase,
ambient conditions and other factors.
4. Soldering
When soldering the relays, ensure
conformance with the conditions listed
below.
1) Automatic soldering
• Preheating: less than 100°C 212°F
(solder target surface of PC board) for
less than 120 sec
• Soldering: less than 260°C 500°F
(solder temperature) for less than 5 sec
(soldering time)
2) Manual soldering
• Soldering tip temperature: less than 280
to 300°C 536 to 572°F
• Soldering iron: 30 to 60 W
• Soldering time: less than 5 sec
5. 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 +110°C –40 to +230°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)
Humidity, %RH
85
Tolerance range
(Avoid freezing (Avoid
when used at condensation
temperatures when used at
lower than
temperatures
0°C 32°F) 5
2
higher than
0°C 32°F)
–40 0
85 110
–40 +32
+185 +230
Temperature, °C °F
Humidity, %RH
85
Tolerance range
(Avoid freezing (Avoid
when used at condensation
temperatures when used at
lower than
temperatures
0°C 32°F)
higher than
0°C 32°F)
5
–40 0
85
–40 +32
+185
Temperature, °C °F
CN-M (ACNM)
2) Condensation
Condensation forms when there is a
sudden change in temperature under
high temperature and high humidity
conditions. Condensation will cause
deterioration of the relay insulation.
3) Freezing
Condensation or other moisture may
freeze on the relay when the
temperatures is lower than 0°C 32°F. This
causes problems such as sticking of
movable parts or operational time lags.
4) Low temperature, low humidity
environments
The plastic becomes brittle if the relay is
exposed to a low temperature, low
humidity environment for long periods of
time.
6. Others
If the relay has been dropped, the
appearance and characteristics should
always be checked before use.
All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.
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