Thumbwheel Switches

A thumbwheel switch is a type of switch that converts numbers to binary, decimal or hexadecimal code in your electronic circuit. The converted code then forms on and off signals.

How do thumbwheel switches work?

Thumbwheel switches are typically made from a case, push buttons, slider, rotor, seal plate, packing, PCB and end caps.

When installed in your electronic or digital device, thumbwheel switches allow you to input codes and numbers by manipulating the circular wheel with your thumb (hence thumbwheel). Thumbwheel switches are commonly used in instrumentation, process controls, testing and machine controls.

Types of thumbwheel switches

Thumbwheel switches differ in their mounting method. For example, some thumbwheel switches have a lock function that locks the set values and prevents them from being changed. Others can only be operated with a pen tip or other thin object. When selecting a thumbwheel switch, consider the size of the device the switch will be mounted in and choose accordingly.

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Part Details Brand Output Coding Switch Readout Terminal Type Mounting Type Contact Resistance Contact Material Mechanical Life Number of Switch Positions Minimum Operating Temperature Maximum Operating Temperature Current Rating Operating Temperature Range
Through Hole Pushwheel Switch Thumbwheel Panel Mount 100mΩ
  • RS Stock No. 161-4802
  • Brand ZF
  • Mfr. Part No. PB C-1E000
ZF BCD 0 to 9 Through Hole Panel Mount 100mΩ WE Alloy 10^6Operations 10 -20°C +80°C 100 mA @ 50 V ac -20 → +80°C
Solder Thumbwheel Switch Panel Mount 200mΩ
  • RS Stock No. 828-8166
  • Brand Idec
  • Mfr. Part No. DGBN-031D-B
Idec 6 4 Solder Panel Mount 200mΩ - - 10 - - 100mA -
Switch connector solder terminals for DG Idec - - Solder Cable Mount - - - 12 - - - -
IP67 Pre-wired Thumbwheel Switch Thumbwheel Apem - - Pre-wired - - - 3000000Operations - -40°C +85°C 10mA -40 → +85°C
IP67 Pre-wired Thumbwheel Switch Thumbwheel Apem - - Pre-wired - - - 3000000Operations - -40°C +85°C 10mA -40 → +85°C
IP67 Pre-wired Thumbwheel Switch Thumbwheel Apem - - Pre-wired - - - 3000000Operations - -40°C +85°C 10mA -40 → +85°C
IP67 Pre-wired Thumbwheel Switch Thumbwheel Apem - - Pre-wired - - - 3000000Operations - -40°C +85°C 10mA -40 → +85°C
Solder Thumbwheel Switch Panel Mount 200mΩ Idec 6 4 Solder Panel Mount 200mΩ - - 10 - - 100mA -
Through Hole Pushwheel Switch PCB 100mΩ Hartmann BCD 0 to 9 Through Hole PCB 100mΩ Gold Plated 100000Operations 10 -20°C +80°C 100 mA @ 40 V dc -20 → +80°C
Frontmount hexadecimal thumbwheel switch
  • RS Stock No. 425-0142
  • Brand APEM
  • Mfr. Part No. SMFB16N1248
Apem Hexadecimal - Solder - Gold Plated 10^6Operations 16 -20°C +80°C 500mA -20 → +80°C
IP67 Pre-wired Thumbwheel Switch Thumbwheel Apem - - Pre-wired - - - 3000000Operations - -40°C +85°C 10mA -40 → +85°C
IP67 Pre-wired Thumbwheel Switch Thumbwheel Apem - - Pre-wired - - - 3000000Operations - -40°C +85°C 10mA -40 → +85°C
Solder Thumbwheel Switch Panel Mount 200mΩ
  • RS Stock No. 828-8154
  • Brand Idec
  • Mfr. Part No. DFAN-031D-B
Idec 6 4 Solder Panel Mount 200mΩ - - 10 - - 100mA -
Solder Thumbwheel Switch Thumbwheel 100mΩ Apem Decimal 0 to 9 Solder - 100mΩ Gold Plated 10^6Operations 10 -20°C +80°C 500mA -20 → +80°C
Solder Thumbwheel Switch Thumbwheel 1Ω
  • RS Stock No. 425-0136
  • Brand APEM
  • Mfr. Part No. SMFBC10N1248
Apem BCD - Solder - Gold Plated 10^6Operations 10 -20°C +80°C 500mA -20 → +80°C
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