B3W-9 데이터 시트보기 (PDF) - OMRON Corporation
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B3W-9 Datasheet PDF : 10 Pages
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LED Specifications
LED color
Maximum Forward current IFM
Recommended operating current IF
Forward voltage (typical value) VF
Maximum reverse voltage VR
Ambient operating temperature
Red
27 mA
20 mA
1.8 V
5V
Green
27 mA
20 mA
2.1 V
5V
Green (high brightness)
27 mA
10 mA
3.7 V
5V
-25°C to 70°C
Yellow
45 mA
20 mA
2.4 V
5V
Blue
27 mA
10 mA
3.7 V
5V
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 ap-
plication with three-color illumination.
LEDs
■ Ambient Temperature vs Maximum Forward Current
50
Yellow
40
Red, Green
30
20
High brightness
Green and Blue
10
0
0
20
40
60
80
Ambient temperature Ta (°C)
■ Forward Current and Forward Voltage Curves (Condition: Ta=25°C)
300.0
100
200.0
100.0
90
50.0
20.0
Red
10.0
5.0
2.0
1.0
0.5
0.2
0.1 0
0.5
1
1.5
2
2.5
3
3.5
Forward voltage VF (V)
80
70
60
Green
50
40
30
20
10
0
0 0.5 1 1.5 2 2.5 3 3.5
Forward voltage VF (V)
100
35
80
60
Yellow
30
25
Green (High brightness), Blue
20
40
15
10
20
5
0
1.0
1.5
2.0
2.5
3.0
Forward voltage VF (V)
0
0
1
2
3
4
5
Forward voltage VF (V)
Note: 1. Pay attention to the polarity of each LED. The anode and cathode can be identified by finding the cathode mark, as indicated on the Dimensions page.
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.
(Voltage used (E) – LED forward voltage (VF))
Limiting resistance (R)=
LED forward current (IF)
(Ω)
E
VF
R
IF
260
Illuminated Tactile Switches B3W-9
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