RF short-travel keyswitches
General data
RF 15 (15 x 15 mm) and RF 19 (19 x 19 mm) with distinct key click, for use under an overlay or with RK 90 keycaps. Can be
fully illuminated.
Content
RF 15 short-travel keyswitch
RF 15 short-travel keyswitch, non-illuminated
RF 15 short-travel keyswitch, fully illuminated with 2 LEDs
RF 15 short-travel keyswitch, 1 LED spot-illumination
RF 15 N short-travel keyswitch
RF 15 N short-travel keyswitch, non-illuminated
RF 15 R short-travel keyswitch
RF 15 R low short-travel keyswitch, non-illuminated
RF 15 R high short-travel keyswitch, non-illuminated
RF 15 R low short-travel keyswitch, 1 LED spot-illumination
RF 15 R high short-travel keyswitch, 1 LED spot-illumination
RF 15 H short-travel keyswitch
RF 15 H short-travel keyswitch, non-illuminated
RF 15 H short-travel keyswitch, fully illuminated
RF 15 signal indicator
RF 15 signal indicator, fully illuminated, 1 LED
RF 19 short-travel keyswitch
RF 19 short-travel keyswitch, non-illuminated
RF 19 short-travel keyswitch, fully illuminated with 2 LEDs
RF 19 short-travel keyswitch, 1 LED spot-illumination
RF 19 short-travel keyswitch, 1 NC + 1 NO
RF 19 short-travel keyswitch, non-illuminated
RF 19 H short-travel keyswitch
RF 19 H keyswitch, non-illuminated
RF 19 H short-travel keyswitch, fully illuminated
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4
RF
PCB Keyswitches
Stock items
are marked
by
bold printed
order numbers.
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RF short-travel keyswitches
Content
RF 19 signal indicator
RF 19 signal indicator,
1
/
2
x 1-module
RF 19 signal indicator,
1
/
2
x 2-module
RF 19 signal indicator, 1 x 1-module
RF 19 signal indicator, 1 x 2-module
RF special accessories
Extension plunger for RF 15 N, round head
Extension plunger for RF 15 N, round head, with recess for LED
Keycap for RF 15, snap-on, for overall height 12.5 mm
Spacers, round, for RF 15, RF 19
Spacers, triangular, for RF 15, RF 19
LED spacer for RF 15 N
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RF
4 - 24
Stock items
are marked
by
bold printed
order numbers.
PCB Keyswitches
RF short-travel keyswitches
Specifications LED
3 mm LED
(valid for 25 °C)
Red LED
Green LED
Yellow LED
Max. forward current l
F
:
Current reduction from: T
0
= 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: T
0
= 50 °C:
Wavelength typ:
Forward voltage U
F
/l
F
typ:
Reverse voltage U
R
/l
F
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
Blue 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
20 mA
approx 0.2 mA/°C
586 nm
2 V/10 mA
5 V/100 µA min.
- 20 °C . . . + 80 °C
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 l
F
:
Current reduction from: T
0
= 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: T
0
= 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: T
0
= 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:
30 mA
0.5 mA/°C
-
637 nm
1.8 V/20 mA
5 V/100 µA min.
- 55 °C . . . + 100 °C
Yellow LED
30 mA
0.5 mA/°C
-
569 nm
2.1 V/10 mA
5 V/100 µA min.
- 40 °C . . . + 100 °C
White LED
30 mA
-
-
510-545 nm
3.5 V/20 mA
-
-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
Multi-colour LED
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
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
Rated power
of series:
P
V
= I
F2
x R
V
Example for 5 Volt:
R
V
=
5V - 2.0 V
= 150
Ω
(= standard value)
0.02 A
PCB Keyswitches
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RF short-travel keyswitches
RF 15 short-travel keyswitch
General data
Low-profile keyboards with RF 15 components should be designed with a 19.05 mm grid. With this grid, frame webs
remain free between the individual keys. The overlay can be glued onto these frame webs; we recommend area
embossing over the keys for the overlays.
Technical data
General information
Colour of lens
Recommended key grid
see order block
19.05 mm
15 mm
15 mm
9.7 mm
soldering into PCB
contacts tin-plated,
fix contact Ag plated
snap-action contact
1 NO
Au/Ag
spot-/fully illuminated
see order block
see order block
2 ... 3 N
0.5 mm
0.5 mm
with through-plated PCB
100 N
Au: 0.02 V, Ag: 3 V
Au: 42 V, Ag: 50 V
Au: 0.01 mA, Ag: 0.1 mA
Au: 100 mA, Ag: 250 mA
Rated power max.
(ohmic load)
Contact resistance when
new max.
Contact resistance acc.
to life max.
Insulation resistance
ESD strength (underneath
overlay)
Bouncing time max.
Other specifications
Ambient temp. operating
min.
Ambient temp. operating
max.
Storage temperature min.
Storage temperature max.
(product)
Storage temperature max.
(in tube)
Resistance to constant
environment
Resistance at variable
environment
Operating life min.
Soldering time max.
Soldering temperature
max.
Flammability of materials
Au: 2 W, Ag: 12.5 W
100 mΩ
3
Ω
10
9
Ω
15 kV
5 ms
4
Dimensions
Length
Width
Overall height
Mechanical design
Mounting
Terminals
Contact system
Contact arrangement
Contact materials
Illumination
LED colour
LED type
Mechanical characteristics
Operating force max.
Operating travel
Switching travel
Robustness min.
Electrical characteristics
Rated voltage min.
Rated voltage max.
Rated current min.
Rated current max.
-25 °C
+70 °C
-40 °C
+80 °C
+50 °C
according to
IEC 600 68-2-3 and 2-30
according to
IEC 600 68-2-14 and 2-33
1000000
2.5 sec.
250 °C
UL 94 HB
RF
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Stock items
are marked
by
bold printed
order numbers.
PCB Keyswitches
RF short-travel keyswitches
Force/Travel Diagram – Keyswitch RF 15
Operation characteristic limits RF
Circuit Diagram – Keyswitch RF 15
Keyswitch,
non-illuminated
Keyswitch,
fully illuminated
Keyswitch,
spot-illuminated
F 1 = Max. operating force
F 2 = Force at contact
F 2 is max. 55% of F 1
Dimensional Drawing RF 15
4
Hole Pattern RF 15
Hole Pattern – Front Panel
RF
View on component side, all hole diameters 1,1
+/- 0,1
mm
PCB Keyswitches
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Analog electronics
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