RF short-travel keyswitches
Specifications LED
3 mm LED
(valid for 25 °C)
Red LED
Green LED
Yellow LED
Max. forward current lF:
Current reduction from: T0 = 50 °C:
Wavelength typ:
Forward voltage UF/lF typ:
Reverse voltage UR/lF typ:
Ambient temperature, operating:
30 mA
approx 0.5 mA/°C
635 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
30 mA
approx 0.5 mA/°C
565 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
20 mA
approx 0.2 mA/°C
586 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
Blue LED
Red low-current LED
Max. forward current lF:
Current reduction from: T0 = 50 °C:
Wavelength typ:
Forward voltage UF/lF typ:
Reverse voltage UR/lF typ:
Ambient temperature, operating:
20 mA
approx 0.6 mA/°C
470 nm
2.7 V/10 mA
5V/100 µA min.
- 20 °C . . . + 80 °C
30 mA
approx 0.5 mA/°C
645 nm
1.6 V/1 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
2 mm LED
(valid for 25 °C)
Red LED
Green LED
Green LED superbright
Max. forward current lF:
Current reduction from: T0 = 50 °C:
Light current fV/lF typ:
30 mA
30 mA
30 mA
0.5 mA/°C
-
0.5 mA/°C
-
-
-
Wavelength typ:
637 nm
569 nm
510-545 nm
3.5 V/20 mA
-
Forward voltage UF/lF typ:
Reverse voltage UR/lF typ:
Ambient temperature, operating:
1.8 V/20 mA
5 V/100 µA min.
- 55 °C . . . + 100 °C
2.1 V/10 mA
5 V/100 µA min.
- 40 °C . . . + 100 °C
-30 °C . . . + 100 °C
Yellow LED
White LED
Blue LED
4
Max. forward current lF:
Current reduction from: T0 = 50 °C:
Light current fV/lF typ:
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
30 mA
-
-
464-485 nm
3.6 V/20 mA
-
-
Wavelength typ:
-
Forward voltage UF/lF typ:
Reverse voltage UR/lF typ:
Ambient temperature, operating:
3.6 V/20 mA
-
- 20 °C . . . + 80 °C
- 20 °C . . . + 80 °C
Multi-colour LED
RF
Max. forward current lF:
Current reduction from: T0 = 50 °C:
Light current fV/lF typ:
30 mA
approx 0.6 mA/°C
-
Wavelength typ:
635/565 nm
2 V/10 mA
-
Forward voltage UF/lF typ:
Reverse voltage UR/lF typ:
Ambient temperature, operating:
- 20 °C . . . + 80 °C
Calculating the
series resistor:
Rated power
of series:
Example for 5 Volt:
UB - UF
5V- 2.0 V
0.02 A
RV =
IF
PV = IF2 x RV
RV =
= 150 Ω (= standard value)
PCB Keyswitches
4 - 25