1
NF-RELAYS
FLATPACK RELAY
CSA˜
pending
mm inch
10.8˜
.425
20.0˜
.787
30.2˜
1.189
FEATURES
1. Flatpack
2. Long seller
SPECIFICATIONS
Contacts
Coil
Remarks
* Specif cations will vary with foreign standards certif cation ratings.
*1Measurement at same location as "Initial breakdown voltage" section
*2Detection current: 10 mA
*3Excluding contact bounce time
*4Half-wave pulse of sine wave: 11ms; detection time: 10
µs
*5Half-wave pulse of sine wave: 6ms
*6Detection time: 10
µs
*7Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT in catalog.
Characteristics (at 25°C 77°F, 50% R.H. seal level)
Arrangement 2 Form C, 4 Form C
Initial contact resistance
(By voltage drop 6 V DC 1 A)
Max. 50 m
Ω
Typical 25 m
Ω
Contact material Movable contact Gold-clad silver
Stationary contact Gold-clad silver
Rating,
(resistive load)
Max. switching power 60 W 100 VA
Max. switching voltage 220 V AC, DC
Max. switching current 2 A
Expected life
(min. operations)
Mechanical 108
Electrical
(Resistive)
2 A 30 V DC 2
× 105
1 A 30 V DC 106
0.5 A 30 V DC 107
Nominal operating power, at 25°C 2C Approx. 300 mW
4C Approx. 480 mW
Max. operating power for continuous duty Approx. 1 W
at 40
°C 104
°F
Max. operating speed 50 cps
Initial insulation resistance*
1
1,000 M
Ω
at 500 V DC
Electrostatic
capacitance
Contact/Contact Approx. 4 pF
Contact/Coil Approx. 7 pF
Contact/Ground Approx. 6 pF
Initial
breakdown
voltage*
2
Between open contacts 750 Vrms
Between contact sets 1,000 Vrms
Between live parts and ground 1,000 Vrms
Between contacts and coil 1,000 Vrms
Operate time*
3
(at nominal voltage) Max. 15 ms (Approx. 10 ms)
Release time (without diode)*
3
(at nominal voltage) Max. 10 ms (Approx. 3 ms)
Contact bounce Approx. 1.5 ms
Shock
resistance
Functional*
4
In de-energized
condition
Min. 29.4 m/s
2
{3 G}
(In contact direction)
Min. 98 m/s
2
{10 G}
(perpendicular to contact)
In energized
condition Min. 196 m/s
2
{20 G}
Destructive*
5
Min. 980 m/s
2
{100 G}
Vibration
resistance
Functional*
6
In de-energized
condition
29.4 m/s
2
{3 G}, 10 to 55 Hz
at double amplitude of 0.5 mm
(in contact direction)
98 m/s
2
{10 G}10 to 55 Hz
at double amplitude of 1.6 mm
(perpendicular to contact)
In energized
condition
117.6 m/s
2
{12 G}10 to 55 Hz
at double amplitude of 2 mm
Destructive 196 m/s
2
{20 G}, 10 to 55 Hz
at double amplitude of 3.3 mm
Conditions for operation,
transport and storage*
7
(Not freezing and condens-
ing at low temperature)
Ambient temp. –40
°
C to + 65
°
C
–40
°
F to +149
°
F
Humidity 5 to 85%R.H.
Unit weight 2C Approx. 14 g .49 oz
4C Approx. 15.5 g .55 oz
TYPICAL APPLICATIONS
NF relays are widely acceptable in appli-
cations where small size and high sensi-
tivity are required.
Such applications include: Electronic
equipment, Household applications,
Alarm systems, Off ce machines, Com-
munication equipment, Measuring equip-
ment, Remote control systems, General
control circuits, Machine tools, Industrial
machinery, etc.
ds_61014_en_nf: 311011J
Discontinued as of August 31, 2012
Product is discontinued.
NF
2
ORDERING INFORMATION
Ex. NF
Contact arrangement Type classification - Contact material Coil voltage (DC)
2: 2 Form C˜
4: 4 Form C
EB: Standard -
5, 6, 12,
24, 48 V
Nil: Gold-clad silver
1: Gold-cap over silver palladium
4EB 4M 48V 1
(Notes) 1. For VDE recognized types, add suffix VDE.
(Notes) 2. For UL/CSA recognized type, add suffix-A, as NF2EB-12V-A whose ground terminal is cut off.˜
(Notes) 3. Standard packing Carton: 20 pcs.; Case: 200 pcs.
*Less than 1,000
Ω:
*More than 1,000
Ω:
±10%
±15%
Part No. Nominal voltage,
V DC
Pick-up voltage,
V DC (max.)
Drop-out
voltage,
V DC (min.)
Max. allowable
voltage,
V DC (at 40
°C)
Coil resistance,*
Ω
Nominal
operating power,
mW
Inductance, H
Armarure
Open Close
NF2EB-5V 5 4.0 0.5 8.7 90 278 0.071 0.071
NF2EB-6V 6 4.8 0.6 10.5 137 260 0.093 0.094
NF2EB-12V 12 9.6 1.2 21 500 290 0.338 0.344
NF2EB-24V 24 19.2 2.4 42 2,000 290 1.29 1.31
NF2EB-48V 48 38.4 4.8 84 7,000 330 4.12 4.18
NF4EB-5V 5 4.0 0.5 7 53 472 0.029 0.029
NF4EB-6V 6 4.8 0.6 8.5 90 400 0.070 0.071
NF4EB-12V 12 9.6 1.2 17.0 330 440 0.22 0.23
NF4EB-24V 24 19.2 2.4 34 1,200 480 0.77 0.79
NF4EB-48V 48 38.4 4.8 68 4,200 550 2.22 2.25
DIMENSIONS
2 Form C
10.8±0.3˜
.425±.012
0.3˜
.012
3.3˜
.130
Resin rise˜
max. 0.5˜
max. .020
4-0.8 dia.˜
.031 dia.˜
Stand-off
20.6˜
.811
30.2˜
1.189
20˜
.787
13˜
.512
N.O.
Ground terminal
N.C.
Coil terminal
Common terminal Terminal dimensions (except soldering)˜
Width: 0.8 .031˜
Thickness: 0.3 .012
58
47
12
36
Schematic
PC board pattern (Copper-side view)
(2.54)˜
(.100)
7.6±0.2˜
.3±.008
7.6±0.2˜
.3±.008
12.7±0.2˜
.5±.008
(2.54)˜
(.100)
4.9˜
.193
5.1±0.2˜
.2±.008
4.9˜
.193
1.13˜
.044 1.13˜
.044
1.3˜
.051 DIA.
+0˜
–0.3
"
+0˜
–.012
Relay˜
outline
mm inch
4 Form C
General tolerance:
±0.5
±.020
(Except for the cover height)
811
710
12
6
5
4
39
14
13
12
10.8±0.3˜
.425±.012
0.3˜
.012
3.3˜
.130
Resin rise˜
max. 0.5˜
max. .020
4-0.8 dia.˜
.031 dia.˜
Stand-off
20.6˜
.811
30.2˜
1.189
24.6˜
.969
13.6˜
.535
N.O.
Ground terminal
N.C.
Coil terminal
Common terminal Terminal dimensions (except soldering)˜
Width: 0.8 .031˜
Thickness: 0.3 .012
Schematic
PC board pattern (Copper-side view)
(2.54)˜
(.100)
7.6±0.2˜
.3±.008
7.6±0.2˜
.3±.008
12.7±0.2˜
.5±.008
(2.54)˜
(.100)
2.1˜
.083
5.1±0.2˜
.2±.008
2.1˜
.083
1.13˜
.044 1.13˜
.044
1.3˜
.051 DIA.
Relay˜
outline
+0˜
–0.3 +0˜
–.012
TYPES AND COIL DATA (at 25°C 77°F)
ORDERING INFORMATION
NF
3
REFERENCE DATA
1. Life curve 2. Coil temperature rise (resistance method) 3. H2S gas test
0.5 1 1.5 2 2.5
10
100
1,000
30 V DC Resistive
Load current, A
No. of operations, ×104
0.2 0.4 0.6 0.8 1.0 1.2 1.4
20
40
60
Coil temperature rise, °C
Operating power, W Exposure time, hrs
50mΩ
100mΩ
500mΩ
1Ω
5Ω
10Ω
50Ω
100Ω
Contact resistance
20 50 100 200 1,000
2,000500
Gas density:˜
2 to 5 ppm˜
Temperature: 40°C˜
Humidity: 90%
Sealed NFEB relay
4. Contact reliability
Test conditions:
1. Contact current/voltage: 10
µA 100 mV 1 kHz
2. Cycle rate 20 cps.
3. Miscontact detection level: 1 mW (= 100
Ω)
4. Detection method: Observation of all changeover
contacts
Test result:
m = 1.5
µ = 21.2
× 106
95% conf dence level = 3.1
× 106
17 contacts out of 20 achieved 10 million no miscon-
tact operations.
0.1 0.5 1.0 5.0 10.0 50 100
0.1
0.2
0.15
0.3
0.40.5
1.0
1.52.0
3.0
4.05.0
10.0
20.0
25.030.0
40.0 50.0
60.070.0
80.090.0
95.099.0
99.9
15.0
No. of operations, ×106
F(t)(%)
5. High temperature test
Test conditions:
Ambient temperature: 80
°C
±2
°C
Test method:
1. All contacts were switched for 100 operations on 2
A 30 V DC resistive load.
2. Samples then were exposed to 80
°C temperature
for 5,000 hours, continuous
3. Contact resistance was measured with Hewlett-
Packard testing equipment.
Test result:
Amber relays showed a stable spread of contact resis-
tance within the initially specif ed 50 m
Ω after 5,000
hours exposure.
100 200 300 400 500 1,000 5,000
3,000
0
10
20
30
40
50
60
70
Contact resistance, mΩ
Exposure, hrs.
N.C. contacts
N.O. contacts
Min.
Max.
Min.
Max.
NOTES
1. Prevention of vibration and shock
To reduce the likelihood of vibration and
shock, we recommend that you install so
that the contact action is not in the direc-
tion of gravity.
Top
Common terminal
Coil terminal
NC terminal
NO terminal
Bottom
For Cautions for Use, see Relay Technical Information in catalog.
ds_61014_en_nf: 311011J
