A-84

Dimensions are shown: Inches (mm)

Specifications and dimensions subject to change

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A

PHA Series

Short Stroke Pushbutton Switches

Features/Benefits

Typical Applications

measurement equipment

switch applications

Specifications

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: 10,000 cycles at rated load

CONTACT RESISTANCE: 20 m ohms initial

Ω

INSULATION RESISTANCE: 100 M ohms

Ω

TOTAL TRAVEL/LATCHING TRAVEL: 2.5mm/1.5mm

(.098 inch/.059 inch)

OPERATING FORCE:

170 grams ± 50 grams (1.67 ± 0.98N)

230 grams ±50 grams (2.26 ± 0.98N)

SEALING: Sealed contacts.

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.

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-85 thru A-87. For additional options not shown in catalog, consult Customer Service Center.

Contact Arrangement

2U

2 Changeovers

4U

4 Changeovers

Round

Rectangular

Square

Indexed

G001I

Ivory

Mechanical Function

EE

Push-push

P H A

Switch

Button

BUTTON REMOVAL

A button of a push-push switch should only be removed in the “OFF” non-latching position.