3.14.100.001-0000 Datasheet, PDF (3/48 Pages) C&K Components – RF short-travel keyswitches

RF short-travel keyswitches
Specifications LED
3 mm LED
(valid for 25 °C)
Max. forward current l_F:
Current reduction from: T₀ = 50 °C:
Wavelength typ:
Forward voltage U_F/l_F typ:
Reverse voltage U_R/l_F typ:
Ambient temperature, operating:
Max. forward current l_F:
Current reduction from: T₀ = 50 °C:
Wavelength typ:
Forward voltage U_F/l_F typ:
Reverse voltage U_R/l_F typ:
Ambient temperature, operating:
2 mm LED
(valid for 25 °C)
Max. forward current l_F:
Current reduction from: T₀ = 50 °C:
Light current f_V/l_F typ:
Wavelength typ:
Forward voltage U_F/l_F typ:
Reverse voltage U_R/l_F typ:
Ambient temperature, operating:
Max. forward current l_F:
Current reduction from: T₀ = 50 °C:
Light current f_V/l_F typ:
Wavelength typ:
Forward voltage U_F/l_F typ:
Reverse voltage U_R/l_F typ:
Ambient temperature, operating:
Max. forward current l_F:
Current reduction from: T₀ = 50 °C:
Light current f_V/l_F typ:
Wavelength typ:
Forward voltage U_F/l_F typ:
Reverse voltage U_R/l_F typ:
Ambient temperature, operating:
Red LED
30 mA
approx 0.5 mA/°C
635 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
Blue LED
20 mA
approx 0.6 mA/°C
470 nm
2.7 V/10 mA
5V/100 µA min.
- 20 °C . . . + 80 °C
Green LED
30 mA
approx 0.5 mA/°C
565 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
Red low-current LED
30 mA
approx 0.5 mA/°C
645 nm
1.6 V/1 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
Yellow LED
20 mA
approx 0.2 mA/°C
586 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
Red LED
Green LED
Green LED superbright
30 mA
30 mA
30 mA
0.5 mA/°C
0.5 mA/°C
-
-
-
-
637 nm
569 nm
510-545 nm
1.8 V/20 mA
2.1 V/10 mA
3.5 V/20 mA
5 V/100 µA min.
5 V/100 µA min.
-
- 55 °C . . . + 100 °C
Yellow LED
- 40 °C . . . + 100 °C
White LED
-30 °C . . . + 100 °C
Blue LED
4
50 mA
0.8 mA/°C
250 mIm/20 mA
590 nm
1.9 V/20 mA
5 V/100 µA min.
-40 °C . . . + 100 °C
25 mA
-
-
-
3.6 V/20 mA
-
- 20 °C . . . + 80 °C
30 mA
-
-
464-485 nm
3.6 V/20 mA
- 20 °C . . . + 80 °C
Multi-colour LED
RF
30 mA
approx 0.6 mA/°C
-
635/565 nm
2 V/10 mA
-
- 20 °C . . . + 80 °C
Calculating the
series resistor:
R_V =
U_B - U_F
I_F
PCB Keyswitches
Rated power
of series:
P_V = I_F2 x R_V
Example for 5 Volt:
R_V =
5V - 2.0 V
0.02 A
= 150 Ω (= standard value)
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