DIGITAST
Microminiature SPDT, Key Switches
Features/Benefits
Typical Applications
•
•
High reliability/long life
•
•
•
Medical
Designed for low level
switching
Instrumentation
Industrial electronics
•
•
•
•
Ready to implement on PCB
Latching function available
Several button options
• Audio electronics
RoHS compliant and compatible
Construction
Electrical
FUNCTION: momentary or push-push
CONTACT ARRANGEMENT: 1 change over contact SPDT, NO
MODE OF SWITCHING: Non-shorting
SWITCHING POWER MAX.: 240 mW DC
SWITCHING VOLTAGE MAX.: 24 V DC
SWITCHING CURRENT MAX.: 10 mA DC
DISTANCE BETWEEN BUTTON CENTERS:
HORIZONTAL MINIMUM: 12,7 (0.500) or 17,78 (0.700)
VERTICAL MINIMUM: 17,78 (0.700)
TERMINALS: PC pins
MOUNTING: Soldering, centering pins
CARRYING CURRENT AT 20˚C (push-push version): 100 mA
DIELECTRIC STRENGTH (50 Hz, 1 min): 500 V
OPERATING LIFE with or without max. switching power
6
Momentary: ≥ 5 x 10 operations
5
Push-push: ≥ 5 x 10 operations
CONTACT RESISTANCE: Initial ≤ 50 mΩ
6
After 5 x 10 operations: ≤ 100 mΩ
Mechanical
TOTAL TRAVEL: ≤ 3 (.0018)
SWITCHING TRAVEL: 1,5 (0.0591)
LATCHING TRAVEL: 1,8 (0.0709)
OPERATING FORCE: 1.5 +/- 0.5 N (150 +/- 50 grams)
10
INSULATION RESISTANCE: ≥ 10 Ω
CAPACITANCE at f= 10 kHz: ≤ 0.8pF
BOUNCE TIME: ≤ 2.5 ms
Operating speed 400 mm/s (15.75/s)
Process
Environmental
SOLDERABILITY:
OPERATING TEMPERATURE: -25˚C to 85˚C.
Wave soldering, compatible with lead free soldering profile
Hand soldering, 350˚C for 3 seconds
How To Order
Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select
desired option from each category and place it in the appropriate box. Some of the configurations may not be available
or could require some development.
Switch
A
U
Series
D
1st LED Color***
NONE No LED
SER Narrow button
SET Wide button
SERU Switch body
only (no button)
Function
EE Latching
OA Non-latching
RD
YE
GN
Red
Yellow
Green
Contact Material
LED
NONE No LED
L
AU Gold
LED Spacing*
Reference
SER BK AU OA
1 LED
NONE Narrow LED Spacing
(TYP Europe)
Button Color**
2L 2 LED’s
Body Color
NONE White (STD)
BRN Brown
None (SERU)
BK Black
GY Gray
WH White
RD Red
2nd LED Color***
NONE No LED
7.62 Wide LED Spacing
(TYP No. America)
RD
YE
GN
Red
Yellow
Green
BU Blue
Button
K
Reference
SRK BK
Button Style
SR Narrow
ST Wide
LED Holes
NONE No LED holes
Button Color**
BK Black
GY Gray
WH White
RD Red
L
1 LED hole
2L
2 LED holes
Latching
None For use with momentary switch
EE With “EE” staple for latching
* LED spacing only applies when 1 LED requested
** Additional button colors available by request
*** Additional LED colors available by request including Bi color configurations
BU Blue
Dimensions are shown: mm
Specifications and dimensions subject to change
www.ckswitches.com
D–25