Mechanical Key Switch B3F
Back
A Wide Range of Models: 6 x 6 mm, 12 x
12 mm, Vertical and High-force.
Excellent tactile feel combined with high life
expectancy.
Available in stick packaging for automatic
mounting to PCBs.
Up to 2.55 N (260-gf) operating force for a firmer
operating touch.
Pushbuttons available in nine colors.
Ordering Information
6 x 6 mm Models
Type Plunger Height
Standard Flat
(B3F-1jjj)
Projected
Extended
Vertical Flat
(B3F-3jjj)
Projected
*
(100 / bag)
Plunger type
Appearance
Flat Projected Extended
x pitch
4.3 x 6.5 mm 0.98 N (100 gf)
5.0 x 6.5 mm 0.98 N (100 gf)
5.0 x 7.5 mm 0.98 N (100 gf)
7.3 x 6.5 mm 0.98 N (100 gf)
9.5 x 6.5 mm 0.98 N (100 gf)
3.15 mm
3.85 mm
6.15 mm
4.3
or
Operating W
force (OF)
1.47 N (150 gf)
2.55 N (260 gf)
1.47 N (150 gf)
2.55 N (260 gf)
1.47 N (150 gf)
2.55 N (260 gf)
0.98 N (100 gf)
1.47 N (150 gf)
2.55 N (260 gf)
0.98 N (100 gf)
1.47 N (150 gf)
2.55 N (260 gf)
0.98 N (100 gf)
1.47 N (150 gf)
2.55 N (260 gf)
7.3
ithout ground terminal
Bags *
B3F-1000 B3F-1000S B3F-1100 B3F-1100S
B3F-1002 B3F-1002S B3F-1102 B3F-1102S
B3F-1005 B3F-1005S B3F-1105 B3F-1105S
B3F-1020 B3F-1020S B3F-1120 B3F-1120S
B3F-1022 B3F-1022S B3F-1122 B3F-1122S
B3F-1025 B3F-1025S B3F-1125 B3F-1125S
--- --- B3F-1110 --B3F-1050 B3F-1050S B3F-1150 B3F-1150S
B3F-1052 B3F-1052S B3F-1152 B3F-1152S
B3F-1055 B3F-1055S B3F-1155 B3F-1155S
B3F–1070 --- --- ---
--- --- B3F-3100 ---
--- --- B3F-3102 ---
--- --- B3F-3105 ---
--- --- B3F-3120 ---
--- --- B3F-3122 ---
--- --- B3F-3125 ---
--- --- B3F-3150 ---
--- --- B3F-3152 ---
--- --- B3F-3155 ---
Sticks (90/stick)
Flat (vertical)
9.5
W
ith ground terminal
Bags *
Sticks (75/stick)
Projected (vertical)
3.15 or 3.85
6.15
12 x 12 mm Models
Type Plunger (or
Standard Flat
(B3F-4jjj)
Long life
expectancy
(B3F-5jj0)
High reliability
gold-plated
(B3F-5jj1)
Surface
illumination
(B3F-9jjj)
*
36 per stick for B3F-9
(100 / bag)
**
LED color)
Projected
Flat
Projected
Flat
Projected
Red LED
Green LED
Y
ellow LED
jjj.
Height x pitch
4.3 x 12.5 mm 1.27 N (130 gf)
7.3 x 12.5 mm 1.27 N (130 gf)
4.3 x 12.5 mm 1.27 N (130 gf)
7.3 x 12.5 mm
4.3 x 12.5 mm 1.27 N (130 gf)
7.3 x 12.5 mm
7.3 x 12.5 mm 1.27 N (130 gf)
Operating
force (OF)
2.55 N (260 gf)
2.55 N (260 gf)
B3F-4000 B3F-4000S B3F-4100 B3F-4100S
B3F-4005 B3F-4005S B3F-4105 B3F-4105S
B3F-4050 B3F-4050S B3F-4150 B3F-4150S
B3F-4055 B3F-4055S B3F-4155 B3F-4155S
B3F-5000 B3F-5000S B3F-5100 B3F-5100S
B3F-5050 B3F-5050S B3F-5150 B3F-5150S
B3F-5001 B3F-5001S B3F-5101 B3F-5101S
B3F-5051 B3F-5051S B3F-5151 B3F-5151S
--- B3F-9100 --- ---
--- B3F-9200 --- ---
--- B3F-9300 --- ---
Accessories (order separately)
Special
keytops are available for projected plunger models. See page 27 (Product B32).
Specifications
W
ithout ground terminal
Bags **
Sticks (45/stick)*
W
ith ground terminal
Bags **
Sticks (45/stick)
Ratings
Switching
Insulation voltage
capacity
5 to 24 VDC, 1 to 50 mA (resistive load)
30 VDC
Characteristics
Contact form SPST-NO
Contact resistance
Insulation resistance
Dielectric strength
Bounce time
V
ibration resistance
Shock resistance
Life expectancy
Ambient temperature
Ambient humidity
Weight
100 mΩ max. (at 5 VDC, 1 mA; initial value.)
100 MΩ min. (at 250 VDC)
500 V
AC, 50/60 Hz for 1 min
5 ms max.
Malfunction: 10 to 55 Hz, 1.5 mm double amplitude
Destruction: 1,000 m/s2 min. (Approx. 100 G min.)
Malfunction: 100 m/s2 min. (Approx. 10G min.)
B3F-1jjj
100-gf OF:
150-gf OF:
260-gf OF:
B3F-4jjj:
130-gf OF:
260-gf OF:
B3F-5jjj
B3F-9jjj
–25°
C to 70°C (with no icing)
35% to 85%
6 x 6 mm models: approx. 0.25 g
12 x 12 mm models: approx. 0.85 g
, -3
jjj:
1,000,000 operations min.
300,000 operations min.
100,000 operations min.
3,000,000 operations min.
1,000,000 operations min.
: 10,000,000 operations min.
: 1,000,000 operations min.
Operating Characteristics
Model
100 gf models 150 gf models 260 gf models 130 gf models 260 gf models
B3F-1jj
Operating force (OF)
Reset force
(RF min.)
Pretravel (PT) 0.25
0.98±
(100±
0.2 N (20 gf)
0.32 N
30 gf)
+0.2
0, -3
jj0 B3F-1jj
/
mm
–0.1
B3F-1jjj,
1.47±
(150±
0.49 N (50 gf) 0.49 N (50 gf) 0.29 N (30 gf) 0.49 N (50 gf)
0.49 N
50 gf)
-3
jjj B3F-4jjj
2, -3
jj2 B3F-1jj
2.55±
(260±
0.69 N
70 gf)
5, -3
jj5 B3F-4jj0,
-5jj
1.27±
(130±
+0.2
0.3
0.49 N
50 gf)
/
0, -9
–0.1
jj0
mm
, -5
jjj
2.55±
(260±
, -9
jjj
B3F-4jj5
0.69 N
70 gf)
Engineering Data
Operating Force vs. Stroke (Typical)
B3F-1jjj, -3jjj
OF: 150 gf
B3F-4jjj, -5jjj, -9jjj
OF: 260 gf
OF: 130 gf
Forward Current Derating
Curve
Operating force (gf)
OF: 100 gf
Stroke S (mm) Stroke S (mm)
Dimensions
Note: 1.
6 x 6 mm Models
Standard, Flat Plunger Type
(without Ground Terminal)
B3F-1000, -1002, -1005,
-1020**, -1022**, -1025**
4.3±0.2**
3.5
**Height of B3F-1020, -1022, -1025 is 5±0.2 mm.
Standard, Projected Plunger Type
(without Ground Terminal)
B3F-1050, -1052, -1055
7.3±0.2
4.3±0.2
Unless otherwise stated, a tolerance of ± 0.4mm applies to all dimensions
2.
No terminal numbers appear on the switches. T
the
up and down sides and the word OMRON is right-side up.
6±0.2
4.5±0.26±0.2
3.5 dia
3.4
6.5±0.5
7.7±0.5
6±0.2
j2.4±0.1
0.3
0.7 0.7
4.5±0.26±0.2
3.5 dia
T
/Internal Connections
(T
3.5
6.5±0.5
7.7±0.5
1.8±0.1
3.4
0.3
0.7 0.7
Operating force (gf)
o orient a switch in the “bottom view” position, turn it so that the terminals are on
PCB
Mounting
(T
op V
iew)
4.5±0.1
6.5±0.1
Four 1±0.05 dia
Terminal
Arrangement
/Internal Connections
(T
op V
iew)
4
21
PCB
Mounting
(T
op V
iew)
6.5±0.1
Four 1±0.05 dia
3
4.5±0.1
erminal Arrangement
op V
iew)
4
21
3
Forward current (mA)
Note: To
determine illuminated current of
surface illumination types
(B3F-9jjj
ward current derating curve.
(Bottom view)
Standard, Flat Plunger Type
(with Ground Terminal, Pitch: 6.5 mm)
B3F-1100, -1102, -1105,
-1120**, -1122**, -1125**
6±0.2
4.5±0.26±0.2
4.3±0.2**
3.5
**Height of B3F-1
6.5±0.5
7.7±0.5
1.5
0.3
3.5 dia
3.4
0.7 0.7
120, -1122, -1
Standard, Projected Plunger Type
(with Ground Terminal)
B3F-1150, -1152, -1155
6±0.2
4.5±0.26±0.2
7.3±0.2
4.3±0.2
3.5
1.5
j2.4±0.1
1.8±0.1
0.3
6.5±0.5
7.7±0.5
3.5 dia
3.4
0.7 0.7
Ambient temperature (
), refer to the above for
PCB
Mounting
(T
op V
iew)
4.1±0.1
6.5±0.1
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
4
21
5
125 is 5±0.2 mm.
PCB
Mounting
(T
op V
iew)
4.1±0.1
6.5±0.1
erminal Arrangement
T
/Internal Connections
(T
op V
iew)
4
21
5
°C)
-
4.5±0.1
Five
1±0.05
dia
3
4.5±0.1
Five
1±0.0
5 dia
3
Extended Type
B3F-1070
6±0.2
PCB Mounting
(Top View)
4.5±0.2
6±0.2
3.5 dia
9.5
3.5
3 dia
Max. 0.5
3.4
0.3
6.5±0.5
7.5±0.5
Vertical, Flat Plunger Type
(Height: 3.15 mm) (Height: 3.85mm)
B3F-3100, -3102, B3F-3120, -3122,
-3105 -3125
PCB
7.3
6.25
3.5 dia
7.4
4
3.5
0.7 1
4.5±0.5
7±0.5
8.7
0.3
0.3
2.25
3.15±0.2/3.85±0.2
2.5±0.5
Mounting
(T
op V
4.5±0.1
7±0.1
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
0.7 0.7
iew)
Two 1.5±0.05 dia
2.5±0.1
Two 1±0.05 dia
4.5±0.1
6.5±0.1
four 1.0
dia ± 0.05
Internal Connec-
tions
(Top View)
Vertical, Projected Plunger Type
(Height: 6.15 mm)
B3F-3150, -3152, -3155
7.3
6.25
3.5 dia
7±0.5
8.7
j2.4±0.1
1.8±0.1
0.3
0.3
2.25
6.15±0.2
7.4
4
3.5
0.7
4.5±0.5
PCB
Mounting
(T
op V
iew)
Two 1.5±0.05 dia
4.5±0.1
7±0.1
Two 1±0.05 dia
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
1
2.5±0.5
2.5±0.1
12 x 12 mm Models
Standard, Long Life Expectancy,
High Reliability, Flat Plunger Type
(without Ground Terminal)
B3F-4000, -4005, -5000, -5001
PCB
(T
12±0.2
7.1 dia
1
9±0.1
12.5±0.1
T
/Internal Connections
(T
1
12±0.2
4.3±0.2
3.5
12.5±0.5
13.8±0.5
5±0.2
3.5
0.3
Mounting
op V
iew)
Two 1.8±0.05 dia
5±0.1
9±0.1
Four 1.2±0.05 dia
erminal Arrangement
op V
iew)
4
21
3
Standard, Long Life Expectancy,
High Reliability, Flat Plunger Type
(with Ground Terminal)
B3F-4100, -4105, -5100, -5101
12±0.2
12±0.2
4.3±0.2
3.5
0.9
12.5±0.5
13.8±0.5
5±0.2
1.6
3.5
0.3
6.9±0.1
7.1 dia
1
9±0.1
1
PCB
Mounting
(T
op V
iew)
Two 1.8±0.05 dia
5±0.1 9±0.1
Five
12.5±0.1
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
1.2±0.0
dia
4
21
5
5
3
Standard, Long Life Expectancy,
High Reliability, Projected Plunger
Type (without Ground Terminal)
B3F-4050, -4055, -5050, -5051
Standard, Long Life Expectancy,
High Reliability, Projected Plunger
Type (with Ground Terminal)
B3F-4150, -4155, -5150, -5151
12±0.2
j3.8±0.1
12.5±0.5
13.8±0.5
5±0.2
1.8±0.2
3.5
0.3
12±0.2
7.3±0.2
4.3±0.2
3.5
Surface Illumination Type
B3F-9100, -9200, -9300
12±0.2
15±0.2
12±0.2
5±0.2
7.1 dia
11
9±0.1
PCB
Mounting
(T
op V
iew)
Two 1.8±0.05 dia
5±0.1
9±0.1
12.5±0.1
Four
1.2±0.0
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
4
21
dia
3
13.8±0.1
5
7.3±0.2
PCB
(T
12±0.2
4.3±0.2
Mounting
op V
iew)
3.5
Two
12±0.2
j3.8±0.1
0.9
12.5±0.5
13.8±0.5
1.8
1.6
±0.05 dia
5±0.1
1.8±0.2
9±0.1
5±0.2
3.5
0.3
6.9±0.1
7.1 dia
11
9±0.1
PCB Mounting
op V
iew)
(T
Two 1.8±0.05 dia
5±0.1 9±0.1
12.5±0.1
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
4
21
Five
1.2±0.0
5
dia
3
5
j10
8.4 dia.
7.1 dia.
7.3±0.2
6.3
3.5
0.5
12.5±0.5
13.8±0.5
0.7
0.3
4
4.5
1
1
0.25
9±0.1
13.5±0.5
0.25
Precautions
• Do
not apply additional force to the plunger once it has stopped
moving.
• Solder
• Do not wash the switches. The switches may be damaged by
• Do not allow flux or flux foam to penetrate onto the component
• Use a single-sided PCB with a thickness of 1.6 mm. The
• The
at 260
°±5°
C within five seconds and within two tries.
solvents if either wiped off using solvents or immersed in
solvents.
side
of the PCB.
switches may be damaged due to instability or heat from
soldering if other PCBs (other thickness or through holes) are
used.
If it is necessary
and
processing in advance.
to use another PCB, test the compatibility
switches are not sealed and should be protected with a resin
sheet
as shown below when used in dust-prone environments.
Keytop
12.5±0.1
T
erminal Arrangement
/Internal Connections
(T
op V
iew)
4
Six 1.2±0.05 dia
Switch
Resin sheets
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