B3J-4000 Omron, B3J-4000 Datasheet - Page 7
![MECHANICAL KEY SWITCH](/photos/14/85/148576/b3j-4000_sml.jpg)
B3J-4000
Manufacturer Part Number
B3J-4000
Description
MECHANICAL KEY SWITCH
Manufacturer
Omron
Series
B3Jr
Type
Keyswitch, Illuminatedr
Specifications of B3J-4000
Circuit
SPST-NO
Switch Function
Off-Mom
Contact Rating @ Voltage
0.05A @ 24VDC
Actuator Type
Square Button
Illumination Type, Color
LED, Green
Illumination Voltage (nominal)
2.1 VDC
Mounting Type
Through Hole
Termination Style
PC Pin
Operating Force
1.27 N
Actuator
Hinged Square
Contact Current Rating
50 mAmps to 24 Volts
Ground Terminal
No
Contact Form
SPST - NO
Mounting Direction
Straight
Features
Tactile switch with integral key cap
Mounting Style
Through Hole
Operating Temperature Range
- 25 C to + 70 C
Contact Rating
50 mAmps to 24 Volts
Contact Configuration
SPST-NO
Contact Voltage Dc Nom
24V
Contact Current Max
50mA
Actuation Type
Top
Switch Terminals
PCB / Push-on
Circuitry
SPST-NO
Rohs Compliant
Yes
Actuator / Cap Color
Gray
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
B3J4000
SW823
Z2180
Z2180
SW823
Z2180
Z2180
Precautions
B3FS-1050P
B3S
Note:
Standards
Package
Heat resistance
Standards
Package
Heat resistance
Tape drawing direction
Switches with ground terminals are packaged with the
ground terminal on the opposite side of the guide hole.
1.5
8.7
+0.1
0
dia.
0.06
Reel
Reel (made of paper)
7
(22)
1.5
+0.1
12±
0
13 dia.
4±
dia.
Tape drawing direction
Label
0.1
Conforms to JEITA.
1,000 Switches
60 ° C for 24 hours (without deformation)
Conforms to JEITA.
1,000 Switches
50 ° C for 24 hours (without deformation)
0.1
9.4
1.5
12±
2
4±
Tape drawing direction
0.1
Tape drawing direction
0.1
1.75±
0.4
380±2 dia.
7.5
Label
0.1
2
330 dia.
16±
4.7
13 dia.
0.3
1.75
7.5
(8.1)
16
21.5
LEDs (B3J)
Make sure that the polarity of the LEDs is correct. The polarity is
not indicated on the Switch, but the positive pole is located on the
back surface of the Switch on the side without the OMRON mark.
Connect limiting resistors to the LEDs. The Switch does not have
built-in limiting resistors, so satisfy the LED characteristics by
obtaining the limiting resistance according to the following formula
based on the voltage to be used.
Limiting resistance (R)=
0.5
50
30
10
50
40
30
20
10
5
3
1
0
−20
1.5
1.6
(Voltage used (E) – LED forward voltage (VF))
R
0
1.7
E
Green
Yellow
LED forward current (IF)
20
Red
I
V
F
F
Ambient temperature Ta (°C)
1.8
40
Forward voltage V
1.9
Red
Yellow/Green
60
Precautions
2.0
F
2.1
(V)
80
(Ω)
7