Purdy Q-Series User Manual

Interswitch Thumbwheel Switches

Q Series

FEATURES

• Compact design, substantial space saving

• Simple assembly

• CE approved types

The essential features of the thumb-wheel switch
are its high reliability, precision and contact en­durance.

Interswitch thumbwheel switches are used in
machine tool control systems, measurement and
test units, control and regulation systems, com­puter systems, sound and vision control systems,
telecommunications, medical measurement sys­tems, etc.

Product specifications contained herein may be

changed without prior notice. It is therefore

advisable to contact Purdy Electronics before

proceeding with the design of equipment

incorporating this product.

SPECIFICATIONS

Rates current (resistive load) 100 mA AC/DC

Max. current carrying capacity 2 A AC/DC

Max. working voltage max. 50 V AC/DC

Test voltage 500 V DC

Insulation voltage (to frontpanel) 1000 V AC/DC

Insulation resistance (+20°C)

10

5

MOhm

Contact resistance (ind. PCB) 100 MOhm

Servicelife (switch operations at 50V/0.1 A)

min. 10

5

Permissible ambient temperature -40° ... +85°C

10 positions Yes Direct solder connections Yes

16 positions No Edge connections Yes

Decimal Yes Solder pins Yes

Binary No Wire wrap pins Yes

Binary + Complement Yes Rear mounting Yes

PCB for diode mounting Yes

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

1 Tel: [phone] • Fax: [phone] • [e-mail] • www.purdyelectronics.com

4/4/05

Interswitch Thumbwheel Switches – Q Series

Dimensions

Width in mm 12.7

Height in mm 33

Mounting depth in mm min. 47

Character height in mm 8

Range of Applications per DIN 40 040

(Ambient Conditions)

Lower temperature limit

• min. -40 °C

(DIN 40 040, G)

Upper temperature limit

max. +85 °C

(DIN 40 040, P)

Relative humidity

57%

(annual average, DIN 40 040, E)

Relative humidity

90%

(30 days per year, DIN 40 040, E)

Front View

Panel Cut-Out

Atmospheric pressure

à 4300 m

(DIN 40 040, T)

Shock (DIN 40 040, T) 8 m/s/30g

Vibration 10-500 Hz/10g

Side View

Top View

2 Tel: [phone] • Fax: [phone] • [e-mail] • www.purdyelectronics.com

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

4/4/05