Purdy B-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
B Series
FEATURES
• Compact design, substantial space saving
• Simple assembly
• CE approved types
The essential features of the thumbwheel 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) 1-100 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 Yes Edge connections Yes
Decimal Yes Solder pins Yes
Binary Yes Wire wrap pins Yes
Binary + Complement Yes Front mounting Yes
PCB for diode mounting Yes Ganged switches Yes
Interswitch Thumbwheel Switches