C&K PHA Series
Short Stroke Pushbutton Switches
Features/Benefits
Typical Applications
• Momentary or latching action
• Computers and peripherals
• Low cost, reliable contact design • Instrumentation and
measurement equipment
• 2, 4 & 6 pole configurations
A
• Non-power, on-off
• Sealed contacts
• Optional buttons
switch applications
Specifications
Materials
SWITCHING POWER MAX.: 3 W DC
SWITCHING VOLTAGE MAX.: 30 V DC
SWITCHING CURRENT MAX.: 100 mA DC
FIXED TERMINAL: Brass, silver plated.
MOVABLE CONTACT: Phosphor bronze, silver plated.
SWITCH BODY: PPE
DIELECTRIC STRENGTH (50 Hz/1 min.): 500 V between open
contacts. 1500 V between chassis and contacts.
ACTUATOR: POM
STANDOFF CLIP: POM
4
OPERATING LIFE: Impulse/momentary (OA): ^ 10 operations.
RETURN SPRING: Music wire.
4
Latching (EE): ^10 operations
RETURN SPRING RETAINER: Carbon steel, tin plated.
DETENT SPRING PLATE: Phosphor bronze.
DETENT SPRING: Stainless steel.
BASE: Laminated phenolic.
CONTACT RESISTANCE: New: %20 mΩ
After 105 operations: %40 mΩ
10
INSULATION RESISTANCE: ^10
CAPACITANCE: %1.5 pF
Ω
TERMINAL SEAL: Epoxy.
CONTACT BOUNCE: %2 ms
NOTE: Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
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
Button
P
H A
Contact Arrangement
2U 2 Changeovers
4U 4 Changeovers
6U 6 Changeovers
Mechanical Function
OA Momentary
EE Push-push
Indexed
G001A Black G003A Black
G001G Gray
G001I Ivory
G001R Red
Round
G003G Gray
G0031 Ivory
G003R Red
Rectangular
Square
G002A Black G004A Black
G002G Gray
G0021 Ivory
G002R Red
G004G Gray
G0041 Ivory
G004R 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
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A-78