Datasheet

4
B3W-9B3W-9
LED Specifications (Ambient temperature Ta = 25°C)
Note: For Switches with two LEDs, red and green, the recommended operating current is 12 mA for the red and 20 mA for the green LED
for application with three-color illumination.
LEDs
■ Forward current reduction curve
■ Forward current and forward voltage curves
Note: 1. 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 with the OMRON mark.
2. 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.
LED color Red Green Green (high brightness) Yellow Blue
Maximum operating current I
FM
27 mA 27 mA 27 mA 45 mA 27 mA
Recommended operating current I
F
20 mA 20 mA 10 mA 20 mA 10 mA
Forward voltage (standard value) V
F
1.8 V 2.1 V 3.7 V 2.4 V 3.7 V
Maximum reverse voltage V
R
5 V 5 V 5 V 5 V 5 V
Ambient operating temperature −25°C to 70°C
0
4020
20
10
30
40
50
60 800
Ambient temperature Ta (
°
C)
Yellow
High brightness
Green and Blue
Red, Green
Forward current I
F
(mA)
0.2
0.5
5.0
50.0
100.0
0
1.5
0.1
2.0
20.0
200.0
0 1 2.5 3.5
1.0
10.0
300.0
00.5 2 3
Red
Forward voltage V
F
(V)
Forward current I
F
(mA)
0
100
90
80
70
60
50
40
30
20
10
0 0.5 1 1.5 2 2.5 3 3.5
Forward voltage V
F
(V)
Forward current I
F
(mA)
Green
0
2.01.5
40
20
60
80
100
2.5 3.01.0
Forward voltage V
F
(V)
Forward current I
F
(mA)
Yellow
Green (High brightness), Blue
0
30
25
20
15
10
5
35
01234 5
Forward voltage V
F
(V)
Forward current I
F
(mA)
Limiting resistance (R)=
(Voltage used (E) – LED forward voltage (VF))
LED forward current (IF)
(
Ω
)
E
R
V
F
I
F