12 x 12 mm Models
Type Plunger (or
LED color)
Height x pitch
Operating
force (OF)
W
ithout ground terminal
W
ith ground terminal
Bags **
Sticks (45/stick)*
Bags **
Sticks (45/stick)
Standard Flat
4.3 x 12.5 mm 1.27 N (130 gf)
B3F-4000 B3F-4000S B3F-4100 B3F-4100S
(B3F-4jjj)
2.55 N (260 gf)
B3F-4005 B3F-4005S B3F-4105 B3F-4105S
Projected
7.3 x 12.5 mm 1.27 N (130 gf)
B3F-4050 B3F-4050S B3F-4150 B3F-4150S
2.55 N (260 gf)
B3F-4055 B3F-4055S B3F-4155 B3F-4155S
Long life
expectancy
Flat
4.3 x 12.5 mm 1.27 N (130 gf)
B3F-5000 B3F-5000S B3F-5100 B3F-5100S
(B3F-5jj0)
Projected
7.3 x 12.5 mm
B3F-5050 B3F-5050S B3F-5150 B3F-5150S
High reliability
gold-plated
Flat
4.3 x 12.5 mm 1.27 N (130 gf)
B3F-5001 B3F-5001S B3F-5101 B3F-5101S
(B3F-5jj1)
Projected
7.3 x 12.5 mm
B3F-5051 B3F-5051S B3F-5151 B3F-5151S
Surface
Red LED
7.3 x 12.5 mm 1.27 N (130 gf)
--- B3F-9100 --- ---
illumination
Green LED
--- B3F-9200 --- ---
(B3F-9jjj)
Y
ellow LED
--- B3F-9300 --- ---
*
36 per stick for B3F-9
jjj.
**
(100 / bag)
Accessories (order separately)
Special
keytops are available for projected plunger models. See page 27 (Product B32).
Specifications
Ratings
Switching
capacity
5 to 24 VDC, 1 to 50 mA (resistive load)
Insulation voltage
30 VDC
Characteristics
Contact form SPST-NO
Contact resistance
100 m
Ω
max. (at 5 VDC, 1 mA; initial value.)
Insulation resistance
100 M
Ω
min. (at 250 VDC)
Dielectric strength
500 V
AC, 50/60 Hz for 1 min
Bounce time
5 ms max.
V
ibration resistance
Malfunction: 10 to 55 Hz, 1.5 mm double amplitude
Shock resistance
Destruction: 1,000 m/s
2
min. (Approx. 100 G min.)
Malfunction: 100 m/s
2
min. (Approx. 10G min.)
Life expectancy
B3F-1jjj
, -3
jjj:
100-gf OF:
1,000,000 operations min.
150-gf OF:
300,000 operations min.
260-gf OF:
100,000 operations min.
B3F-4jjj:
130-gf OF:
3,000,000 operations min.
260-gf OF:
1,000,000 operations min.
B3F-5jjj
: 10,000,000 operations min.
B3F-9jjj
: 1,000,000 operations min.
Ambient temperature
–25°
C to 70
°
C (with no icing)
Ambient humidity
35% to 85%
Weight
6 x 6 mm models: approx. 0.25 g
12 x 12 mm models: approx. 0.85 g
Operating Characteristics
Model
B3F-1jjj,
-3
jjj B3F-4jjj
, -5
jjj
, -9
jjj
100 gf models 150 gf models 260 gf models 130 gf models 260 gf models
B3F-1jj
0, -3
jj0 B3F-1jj
2, -3
jj2 B3F-1jj
5, -3
jj5 B3F-4jj0,
-5jj
0, -9
jj0
B3F-4jj5
Operating force (OF)
0.98±
0.32 N
(100±
30 gf)
1.47±
0.49 N
(150±
50 gf)
2.55±
0.69 N
(260±
70 gf)
1.27±
0.49 N
(130±
50 gf)
2.55±
0.69 N
(260±
70 gf)
Reset force
(RF min.)
0.2 N (20 gf)
0.49 N (50 gf) 0.49 N (50 gf) 0.29 N (30 gf) 0.49 N (50 gf)
Pretravel (PT) 0.25
+0.2
/
–0.1
mm
0.3
+0.2
/
–0.1
mm