CN-H (ACNH3)
HIGH LOAD RELAY
FOR SMART J/B
CN-H RELAYS (ACNH)
FEATURES
TYPICAL APPLICATIONS
• Best space savings in its class
• Large capacity switching despite
small size. Can replace micro ISO
terminal type relays.
• Terminals for PC board pattern
designs are easily allocated.
• Sealed type
Head lamp, Fog lamp, Fan motor, EPS,
Defogger, Seat heater, etc.
ORDERING INFORMATION
ACNH
Contact arrangement
3: 1 Form A
Pick-up voltage
1: Max. 5.5V DC
2: Max. 6.5V DC
Coil voltage (DC)
12: 12V
TYPES
Contact arrangement
1 Form A
Nominal coil voltage
Pick-up voltage (at 20C 68F)
Part No.
Max. 6.5 V DC (Initial)
ACNH3212
Max. 5.5 V DC (Initial)
ACNH3112
12V DC
Standard packing; Carton (tube): 50 pcs.; Case: 1,000 pcs.
RATING
1. Coil data
Nominal coil
voltage
12 V DC
Pick-up voltage
(at 20C 68F)
Drop-out voltage
(at 20C 68F)
Nominal operating
current
[10%] (at 20C 68F)
Coil resistance
[10%] (at 20C 68F)
Nominal operating
power
(at 20C 68F)
Max. 6.5 V DC
(Initial)
Min. 1.0 V DC
(Initial)
37.5 mA
320¾
450 mW
Max. 5.5 V DC
(Initial)
Min. 0.8 V DC
(Initial)
53.3 mA
225¾
640 mW
ds_61219_en_cnh: 010113J
Usable voltage range
10 to 16 V DC
1
CN-H (ACNH3)
2. Specifications
Characteristics
Contact
Item
Specifications
Arrangement
1 Form A
Contact resistance (Initial)
Typ5m (By voltage drop 6 V DC 1 A)
Contact material
Ag alloy (Cadmium free)
Nominal switching capacity (resistive load)
30A 14V DC
Max. carrying current
35A/1 h, 45A/2 min. at 20C 68F
30A/1 h, 40A/2 min. at 85C 185F
25A/1 h, 35A/2 min. at 110C 230F
30A/1 h, 40A/2 min. at 20C 68F
25A/1 h, 35A/2 min. at 85C 185F
20A/1 h, 30A/2 min. at 110C 230F
Rating
Continuous carrying current
20A 14V DC (450mW) at 110C 230F, 15A 14V DC (640mW) at 110C 230F
Nominal operating power
450 mW (for pick-up voltage max. 6.5 V DC), 640 mW (for pick-up voltage max. 5.5 V DC)
Min. switching capacity (resistive load)*1
1A 14V DC
Insulation resistance (Initial)
Electrical
characteristics
Between contacts and coil
500 Vrms for 1 min. (Detection current: 10mA)
Max. 10ms (at 20C 68F, excluding contact bounce time) (Initial)
Release time (at nominal voltage)
Max. 10ms (at 20C 68F) (Initial) (without protective element)
Mechanical
characteristics
Vibration resistance
Conditions
500 Vrms for 1 min. (Detection current: 10mA)
Operate time (at nominal voltage)
Shock resistance
Expected life
Min. 100 M (at 500V DC, Measurement at same location as “Breakdown voltage” section.)
Between open contacts
Breakdown voltage
(Initial)
Functional
Min. 100 m/s2 {10G} (Half-wave pulse of sine wave: 11ms; detection time: 10s)
Destructive
Min. 1,000 m/s2 {100G} (Half-wave pulse of sine wave: 6ms)
Functional
10 Hz to 100 Hz, Min. 44.1m/s2 {4.5G} (Detection time: 10s)
Destructive
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)
Electrical
Min. 105 (at nominal switching capacity, operating frequency: 1s ON, 1s OFF)
Min. 3105 (at inrush 84 A, steady 18 A, 14 V DC operating frequency: ON 2s, OFF 5s)
Min. 2105 (at inrush 84 A, steady 12 A, 14 V DC operating frequency: ON 1s, OFF 14s)
Conditions for operation, transport and storage
Ambient temperature: –40C to +110C –40F to +230F
Humidity: 2% R.H. to 85% R.H. (Not freezing and condensing at low temperature)
Mass
Approx. 9 g .32 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.
REFERENCE DATA
1-(1). Coil temperature rise
1-(2). Coil temperature rise
Sample: ACNH3212, 3pcs
Measured portion: Inside the coil
Contact carrying current: 10A, 20A, 30A
Ambient temperature: 25C 77F
Sample: ACNH3212, 3pcs
Measured portion: Inside the coil
Contact carrying current: 10A, 20A
Ambient temperature: 110C 230F
20
100
30A
80
20A
60
10A
40
Coil applied voltage, VDC
120
Temperature rise, °C
Temperature rise, °C
120
2. Ambient temperature and operating voltage
range
100
80
60
20A
40
10A
20
0
10
15
10
Pick-up voltage: ACNH3212
(cold start)
5
Pick-up voltage: ACNH3112
(cold start)
20
12
14
16
Coil applied voltage, V
2
Operating voltage range
18
0
10
12
14
16
Coil applied voltage, V
18
0
-40 -20
0
20
40
60
80 100 110 120
Ambient temperature, °C
ds_61219_en_cnh: 010113J
CN-H (ACNH3)
3-(1). Distribution of pick-up and drop-out
voltage
3-(2). Distribution of pick-up and drop-out
voltage
Sample: ACNH3212, 20pcs.
Sample: ACNH3112, 20pcs.
20
20
Pick-up voltage
Drop-out voltage
Pick-up voltage
Drop-out voltage
15
Quantity, n
Quantity, n
15
10
10
5
5
0
0
0
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Voltage, V
Voltage, V
4-(1). Distribution of operate and release time
4-(2). Distribution of operate and release time
Sample: ACNH3212, 20pcs.
Sample: ACNH3112, 20pcs.
20
20
Operate time
Release time
Operate time
Release time
15
Quantity, n
Quantity, n
15
10
10
5
5
0
0
0
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Time, ms
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Time, ms
5. Electrical life test (Resistive load)
14V DC
7
6
5
Change of contact resistance
30
Contact welding: 0 time
Miscontact: 0 time
Max.
x
Min.
Pick-up voltage
4
3
Max.
x
Min.
2
Contact resistance, mΩ
Circuit:
Change of pick-up and drop-out voltage
Pick-up and drop-out voltage, V
Sample: ACNH3212, 6pcs.
Load: Resistive load (NO side: 30A 14V DC)
Operating frequency: ON 1s, OFF 1s
Ambient temperature: Room temperature
15
10
5
1
5
No. of operations, × 104
20
Max.
Drop-out voltage
0
0
25
0
0
10
x
Min.
5
No. of operations, × 104
10
6-(1). Electrical life test (Motor load)
Change of pick-up and drop-out voltage
Circuit:
14V DC
M
Pick-up and drop-out voltage, V
7
6
Change of contact resistance
30
Contact welding: 0 time
Miscontact: 0 time
5
Pick-up voltage
Max.
x
Min.
4
3
Max.
x
Min.
2
ds_61219_en_cnh: 010113J
20
15
10
5
1
15
No. of operations, × 104
25
Max.
Drop-out voltage
0
0
Contact resistance, mΩ
Sample: ACNH3212, 3pcs.
Load: inrush: 84A/steady: 18A,
radiator fan actual load (motor free)
Operating frequency: ON 2s, OFF 5s
Ambient temperature: 110C 230F
30
0
0
x
Min.
15
No. of operations, × 104
30
3
CN-H (ACNH3)
6-(2). Electrical life test (Lamp load)
Change of pick-up and drop-out voltage
Sample: ACNH3212, 6pcs.
Load: 60W2, inrush: 84A/steady: 12A
Operating frequency: ON 1s, OFF 14s
Ambient temperature: Room temperature
Pick-up and drop-out voltage, V
60W
Max.
6
Contact resistance, mΩ
60W
30
7
Circuit:
14V DC
Change of contact resistance
x
Min.
Pick-up voltage
5
4
Contact welding: 0 time
Miscontact: 0 time
3
Max.
x
Min.
2
Drop-out voltage
10
No. of operations, × 104
15
10
Max.
x
Min.
0
0
20
DIMENSIONS (mm inch)
10
No. of operations, × 104
20
CAD Data
Data from our Web site.
Download CAD
External dimensions
CAD Data
20
5
1
0
0
25
PC board pattern (Bottom view)
17.0
.669
10.6
.417
2×1.6+0.1
0 dia. (hole)
2×.063+.004
dia. (hole)
0
2×1.6+0.1
0 dia. (hole)
2×.063+.004
dia. (hole)
0
1.7+0.1
0 dia. (hole)
.067+.004
dia. (hole)
0
3.0
.118
6.4 5.6
.252 .220
18.3
.720
Max. 1.0
Max. .039
A
1.2
.047
14.95
.589
0.4
.016
Tolerance: 0.1 .004
3.5
.138
0.32
.013
1.2
.047
0.6
.024
1.2
.047
Schematic (Bottom view)
Pre-soldering
COM
COM
0.3
.012
5.5
14.95 .217
.589
1.1
.043
NO
Coil
3.0
.118
6.4 5.6
.252 .220
5.5
.217
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
Coil
General tolerance
0.1 .004
0.2 .008
0.3 .012
* Dimensions (thickness and width) of terminal is measured before pre-soldering.
Intervals between terminals is measured at A surface level.
NOTES
Usage, transport and storage
conditions
1) Ambient temperature, humidity, and
atmospheric pressure during usage,
transport, and storage of the relay:
(1) Temperature:
–40 to +110C –40 to +230F
(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
when used at
temperatures
lower than
0°C 32°F) 5
2
–40
–40
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
0
+32
Temperature, °C °F
85
+185
110
+230
For Cautions for Use, see Relay Technical Information.
4
ds_61219_en_cnh: 010113J