1128
Tactile Switch
B3F
Tactile Switch
B3F
Miniature, Space-Saving Tactile Switch
Provides Long Service Life and Easy
Mounting
Extended mechanical/electrical service life: 10 x 10
6
operations
for 12 x 12 mm type and 1 x 10
6
operations for the 6 x 6 mm type
Ideal for applications such as audio, office and communications
equipment, measuring instruments, TVs, VCRs, etc.
Taped radial type, vertical type and high force types are available
as series versions
Flux-tight base structure allows automatic soldering of the tactile
switches onto a PC board
Gold plated models available for increased contact reliability, re-
sistance to corrosive gas and insulation fault prevention for ion
migration in harsh environments
RoHS Compliant
Ordering Information
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B3F-1
@@@
, B3F-3
@@@
6 x 6 mm type
* Number of switches per stick:
Without ground terminal ............. 90/stick
With ground terminal .................. 75/stick
Important Note: Switches cannot be water-washed.
Type
Plunger
Switch height x pitch
Operating force
Model
Without ground terminal With ground terminal
Bags Sticks*
Bags Sticks*
Standard
Flat
4.3 x 6.5 mm
General-purpose: 100 g
150 g
B3F-1000
B3F-1002
B3F-1000S
B3F-1002S
B3F-1100
B3F-1102
B3F-1100S
B3F-1102S
High-force: 260
g
B3F-1005 B3F-1005S
B3F-1105 B3F-1105S
5.0 x 6.5 mm
General-purpose: 100 g
150 g
B3F-1020
B3F-1022
B3F-1020S
B3F-1022S
B3F-1120
B3F-1122
B3F-1120S
B3F-1122S
High-force: 260
g
B3F-1025 B3F-1025S
B3F-1125 B3F-1125S
5.0 x 7.5 mm
General-purpose: 100 g
-- --
B3F-1110
--
Projected
7.3 x 6.5 mm
General-purpose: 100 g
150
g
B3F-1050
B3F-1052
B3F-1050S
B3F-1052S
B3F-1150
B3F-1152
B3F-1150S
B3F-1152S
High-force: 260
g
B3F-1055 B3F-1055S
B3F-1155 B3F-1155S
Vertical
Flat
3.15 mm
General-purpose: 100 g
150 g
--
--
--
--
B3F-3100
B3F-3102
--
--
High-force: 260
g
-- -- B3F-3105
--
3.85 mm
General-purpose: 100 g
150 g
--
--
-- B3F-3120
B3F-3122
--
--
High-force: 260
g
-- -- B3F-3125
--
Projected
6.15 mm
General-purpose: 100 g
150 g
--
--
--
--
B3F-3150
B3F-3152
--
--
High-force: 260
g
-- -- B3F-3155
--
Tactile Switch
B3F
1129
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B3F-1
@@@-G
6 x 6 mm type with Gold Plating
Note:
The minimum order is 100 Switches. Order in multiples of the minimum order.
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B3F-4
@@@
, B3F-5
@@@
12 x 12 mm type
* Number of switches per stick:
Without ground terminal ............. 45/stick
With ground terminal .................. 40/stick
Important Note: Switches cannot be water-washed.
Type
Plunger
Switch height x pitch Form of shipment
operating force
Model
Without ground terminal With ground terminal
Bags (100 Switches)
6 x 6 mm switches
with gold plating
Flat
4.3 x 6.5 mm
176 g
B3F-1002-G
B3F-1102-G
5.0 x 6.5 mm
B3F-1022-G
B3F-1122-G
Type
Plunger
Switch height x pitch
Operating force
Model
Without ground terminal With ground terminal
Bags Sticks*
Bags Sticks*
Standard
Flat
4.3 x 12.5 mm
General-purpose: 130 g
B3F-4000
B3F-4000S B3F-4100
B3F-4100S
High-force: 260
g
B3F-4005 B3F-4005S
B3F-4105
B3F-4105S
Projected
7.3 x 12.5 mm
General-purpose: 130 g
B3F-4050 B3F-4050S
B3F-4150
B3F-4150S
High-force: 260
g
B3F-4055 B3F-4055S
B3F-4155 B3F-4155S
Long service life Flat
4.3 x 12.5 mm
General-purpose: 130 g
B3F-5000 B3F-5000S
B3F-5100
B3F-5100S
Projected
7.3 x 12.5 mm
B3F-5050 B3F-5050S
B3F-5150
B3F-5150S
High reliability
gold-plated
contact
Flat
4.3 x 12.5 mm
B3F-5001 B3F-5001S
B3F-5101
B3F-5101S
Projected
7.3 x 12.5 mm
B3F-5051 B3F-5051S
B3F-5151 B3F-5151S
1130
Tactile Switch
B3F
I
B3F-6
@@@
Taped Radial (Auto Insertion)
6 x 6 mm type
Note:
The above switches must be ordered in units of 1,000.
Important Note: Switches cannot be water-washed.
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Accessories
See "B32" Tactile Switch Key Top data sheet for keycaps that fit projected plunger B3F models.
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Plunger Identification Table
Use this table to determine tactile switch type by plunger color.
Type
Plunger
Switch height x pitch
Operating force
Model
Without ground terminal With ground terminal
B3F-6000
Flat
4.3 x 6.5 mm
General-purpose: 100 g
B3F-6000
B3F-6100
High-force:
150 g
B3F-6002
B3F-6102
5.0 x 6.5 mm
General-purpose: 100 g
B3F-6020
B3F-6120
High-force:
150 g
B3F-6022
B3F-6122
Projected
7.3 x 6.5 mm
General-purpose: 100 g
B3F-6050
B3F-6150
High-force:
150 g
B3F-6052
B3F-6152
Plunger color
Operating force
Type
Light gray
100 g
B3F-1000, 1150, 3100, 6000, 6050
White
100 g
B3F-1050, 1100, 3150, 4000, 4050, 4100
Black
100 g
B3F-1020, 1110, 1120, 3120, 6020, 6120
Blue
130 g
B3F-5000 Series
Yellow
150 g
B3F-1002, 1052, 1102, 3102, 3152, 4005, 4055, 4105, 4155, 6002, 6052
Medium gray
150 g
B3F-1022, 1122, 3122, 6022
Orange
260 g
B3F-1005, 1055, 1105, 3105, 6005, 6055
Pink
260 g
B3F-1025, 1125, 3125, 6025
Tactile Switch
B3F
1131
Specifications
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Characteristics
Note: 1.
Figure in parentheses denotes the service life of high force type.
2.
Denotes the weight of standard type.
3.
Data shown are of initial value.
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Operating Characteristics
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Construction
B3F-1
@@@
-G
Switches have circular contact surface instead of single center point
contact, increasing contact reliability.
Part Number
B3F-1
@@@
B3F-3
@@@
B3F-4
@@@
B3F-5
@@@
B3F-6
@@@
B3F-1
@@@
-G
Service life (see note 1)
[mechanical/electrical]
1,000,000 operations
minimum
3,000,000 operations
minimum
10,000,000
operations minimum
1,000,000 (300,000)
operations min.
300,000
operations min.
Weight (see note 2)
Approx. 0.25 g
Approx. 0.85 g
Approx. 0.25 g
Contact form
SPST-NO
SPST-NO
Switching capacity
1 to 50 mA, 5 to 24 VDC (resistive load)
100
A to 50 mA,
5 to 24 VDC
(resistive load)
Contact resistance
100 M
max.
100 M
max.
(initial value)
(rated: 100
A, 5 VDC)
Insulation resistance
100 M
min. (at 250 VDC)
Dielectric strength
500 VAC, 50/60 Hz for 1 minute
Bounce time
5 ms max.
Vibration
Malfunction durability: 10 to 55 Hz, 1.5 mm double amplitude
Malfunction:
10 to 55 Hz,
1.5 mm double
amplitude for 30 to 60 s
Shock
Mechanical durability: 1,000 m/s
2
(approx. 100 G)
Malfunction durability: 100 m/s
2
(approx. 10 G)
Destruction:
1,000 m/s
2
max.
Ambient temperature
-25 to 70C (with no icing)
Humidity
35% to 85% RH
35% to 85%
Characteristics
Part Number
B3F-1
@@@ /
-3
@@@
B3F-4
@@@ /
-5
@@@
B3F-6
@@@
B3F-1
@@@-G
General
purpose type
High force
type
General
purpose type
High force
type
General
purpose type
High force
type
General
purpose type
Operating force (OF)
100
30 g
150
50 g
130
50 g
260
70 g
100
30 g
150
50 g
1.76
0.49 N
Release force (RF) min.
20 g
50 g
30 g
50 g
20 g
50 g
0.49 N
Pretravel (PT) max.
0.25
+0.2
/
-0.1
mm 0.25
+0.2
/
-0.1
mm 0.3
+0.2
/
-0.1
mm 0.3
+0.2
/
-0.1
mm 0.25
+0.2
/
-0.1
mm 0.25
+0.2
/
-0.1
mm 0.25
+0.2
/
-0.1
mm
Contact along circle circumference
(circular contact)
1132
Tactile Switch
B3F
I
Contact Form
Engineering Data
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Operating Force vs. Stroke (typical example)
B3F-1
@@@/
-3
@@@
B3F-4
@@@/
-5
@@@
B3F-6
@@@
B3F-10
@@
-40
@@
-50
@@
-10
@@-G
B3F-11
@@
-41
@@
-51
@@
-11
@@-G
B3F-3
@@@
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