C&K PHA Series
Short Stroke Pushbutton Switches
Features/Benefits
•
Momentary or latching action
•
Low cost, reliable contact design
•
2, 4 & 6 pole configurations
•
Sealed contacts
•
Optional buttons
Typical Applications
•
Computers and peripherals
•
Instrumentation and
measurement equipment
•
Non-power, on-off
switch applications
A
Pushbutton
Specifications
Materials
FIXED TERMINAL: Brass, silver plated.
MOVABLE CONTACT: Phosphor bronze, silver plated.
SWITCH BODY: PPE
ACTUATOR: POM
STANDOFF CLIP: POM
RETURN SPRING: Music wire.
RETURN SPRING RETAINER: Carbon steel, tin plated.
DETENT SPRING PLATE: Phosphor bronze.
DETENT SPRING: Stainless steel.
BASE: Laminated phenolic.
TERMINAL SEAL: Epoxy.
NOTE:
Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
SWITCHING POWER MAX.: 3 W DC
SWITCHING VOLTAGE MAX.: 30 V DC
SWITCHING CURRENT MAX.: 100 mA DC
DIELECTRIC STRENGTH (50 Hz/1 min.): 500 V between open
contacts. 1500 V between chassis and contacts.
OPERATING LIFE: Impulse/momentary (OA):
^
104 operations.
Latching (EE):
^
104 operations
CONTACT RESISTANCE: New:
%
20 mΩ
After 105 operations:
%
40 mΩ
INSULATION RESISTANCE:
^
1010
Ω
CAPACITANCE:
%
1.5 pF
CONTACT BOUNCE:
%
2 ms
Operating speed 200 mm/s (7.87 inch/s)
TOTAL TRAVEL/LATCHING TRAVEL: 2.5mm/1.5mm
(.0984 inch/.0591 inch)
OPERATING FORCE:
2U: 170cN±50cN (170 grams±50 grams)
4U: 230cN±70cN (230 grams±70 grams)
6U: 300cN±100cN (300 grams±100 grams)
SEALING: Sealed contacts.
Build-A-Switch
To order, simply select desired option from each category and place in the appropriate box. Available options are shown and
described on pages A-79 thru A-81. For additional options not shown in catalog, consult Customer Service Center.
Switch
P H A
Button
Contact Arrangement
2U
2 Changeovers
4U
4 Changeovers
6U
6 Changeovers
Mechanical Function
OA
Momentary
EE
Push-push
Indexed
G001A
Black
G001G
Gray
G001I
Ivory
G001R
Red
Rectangular
G002A
Black
G002G
Gray
G0021
Ivory
G002R
Red
Round
G003A
G003G
G0031
G003R
Square
G004A
G004G
G0041
G004R
Black
Gray
Ivory
Red
Black
Gray
Ivory
Red
BUTTON REMOVAL
A button of a push-push switch should only be
removed in the “OFF” non-latching position.
Dimensions are shown: IN (mm)
Dimensions subject to change
A-78
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