Purdy D-Series Thumbwheel Switch - Manual

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
1 Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected] • www.purdyelectronics.com 4/3/05
D 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 en-
durance.
Interswitch thumbwheel switches are used in
machine tool control systems, measurement and
test units, control and regulation systems, com-
puter systems, sound and vision control systems,
telecommunications, medical measurement sys-
tems, etc.
SPECIFICATIONS
Rates current (resistive load) 1-175 mA AC/DC
Max. current carrying capacity 1 A AC/DC
Max. working voltage max. 42 V AC/DC
Test voltage 500 V DC
Insulation resistance (+20°C)
10
5
MOhm
Contact resistance (ind. PCB) 100 MOhm
Servicelife (switch operations)
min. 10
5
Permissible ambient temp. -25° ... +70°C
10 positions Yes Direct solder connections Yes
16 positions No Edge connections Yes
Decimal Yes Solder pins Yes
Binary Yes Front mounting Yes
PCB for diode mounting Yes
Interswitch Thumbwheel Switches
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.