Toggle Switches

Toggle switches are among the most basic and most common of all electronic components, the switch moves contacts that either provide a path for current to flow through or moves those contacts in such a way that the path is cut. The toggle switches most people will be familiar with are light switches.

How Does a Toggle Switch Function?
Toggle switches may vary a bit in function from one to the next depending upon their configurations. However, the basics are the same.
When the actuator (the toggle itself) is moved, the armature in the switch moves the contact into position either energizing the circuit or de-energizing it. Once the switch is moved from one position to the other, it typically stays that way. There are also momentary switches, which energize or de-energize a circuit for as long as they are actuated and then go back to their normal state once the actuator is released. This is accomplished via a spring mechanism that exerts a force on the armature from the inside.

Contact Configuration of a Toggle Switch
  • A single pole single throw (SPST) switch is the simplest and most common type of toggle switch. These switches allow simple on and off operation for a single circuit. Most light switches are SPST switches.
  • Single pole double throw (SPDT) switches can be used to change where a voltage is directed. The double throw means that the switch can be used to energize two different circuits - one at a time - from a single source of energy.
  • Double pole single throw (DPST) switches allow an operation that is very similar to having two SPST switches hooked together in one device. The switch can turn two circuits on and off. These are very convenient when more than one device needs to be controlled with the same switch.
  • Double pole double throw (DPDT) switches allow two different circuits to be served by the same pole. These are used in applications where a circuit may need to have changing voltages applied to connected devices.

There are also switches with the designation CO, such as SPCO (single pole changeover) switches. These have an off position in the middle of the switch and can be used to energize or de-energize two different circuits attached to the device.

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Description Price Contact Configuration Switch Operation Contact Current Rating Mounting Type Terminal Type IP Rating Illuminated Panel Cut Out Width Panel Cut Out Height Panel Cut Out Diameter Actuator Length Actuator Material Voltage Rating Contact Resistance
RS庫存編號 164-8730
製造零件編號FTD59G04
TWD407.00
個 (以毎盒:100)
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SPDT Latching 400 mA @ 20 V dc Panel Mount Solder - - - - 6.2mm 16.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 164-1983
製造零件編號4-1825139-0
TWD232.80
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DPDT On-On-On 5 A @ 28 V dc Panel Mount Solder - - - - - 17.5mm Phenolic - 10mΩ
RS庫存編號 317-572
製造零件編號FTD59G04
TWD701.00
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SPDT Latching 400 mA @ 20 V Panel Mount Solder - - - - 6.2mm 16.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 710-9870
製造零件編號4-1825139-0
TWD266.00
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Double Pole Double Throw (DPDT) On-On-On 5 A @ 28 V dc Panel Mount Solder - - - - - 17.5mm Phenolic - 10mΩ
RS庫存編號 316-973
製造零件編號FTD0904
TWD305.00
單位
SPDT Latching 4 A @ 30 V dc Panel Mount Solder - - - - 6.2mm 11.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 710-9505
製造零件編號1-1825142-6
TWD125.00
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Single Pole Double Throw (SPDT) Latching 5 A @ 28 V dc PCB Through Hole IP67 - - - - 12.7mm Phenolic - 10mΩ
RS庫存編號 710-9882
製造零件編號4-1825139-5
TWD212.00
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DP3T (On)-On-(On) 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS庫存編號 165-1030
製造零件編號4-1825139-5
TWD186.70
個 (以毎袋:100)
單位
DP3T (On)-On-(On) 5 A @ 28 V dc Panel Mount Through Hole - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS庫存編號 710-9700
製造零件編號1825136-9
TWD222.00
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Single Pole Double Throw (SPDT) Latching 5 A @ 28 V dc PCB Through Hole - - - - - 18.03mm Phenolic - 10mΩ
RS庫存編號 710-9463
製造零件編號3-1825137-7
TWD167.00
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Single Pole Double Throw (SPDT) (On)-Off-(On) 5 A @ 28 V dc PCB Through Hole - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS庫存編號 168-0802
製造零件編號1825136-9
TWD153.00
個 (以毎盒:100)
單位
SPDT Latching 5 A @ 28 V dc PCB Through Hole - - - - - 18.03mm Phenolic - 10mΩ
RS庫存編號 710-9551
製造零件編號5-1825137-0
TWD170.00
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SPDT (On)-Off-On 400 mA @ 20 V PCB Through Hole - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS庫存編號 710-9987
製造零件編號2-1825138-5
TWD114.00
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Double Pole Double Throw (DPDT) Latching 5 A @ 28 V dc PCB Through Hole - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS庫存編號 317-645
製造零件編號FTD7904
TWD326.00
單位
Single Pole Double Throw (SPDT) Latching 6 A @ 250 V ac Panel Mount Solder - - - - 6.2mm 21.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 710-9826
製造零件編號2-1825139-6
TWD184.00
單位
Double Pole Double Throw (DPDT) On-Off-(On) 5 A @ 28 V dc Panel Mount Solder - - - - - 17.5mm Phenolic - 10mΩ
RS庫存編號 710-9668
製造零件編號3-1825136-9
TWD129.00
單位
Single Pole Double Throw (SPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 12.19mm Phenolic - 10mΩ
RS庫存編號 161-5040
製造零件編號2-1825139-3
TWD114.30
個 (以毎袋:100)
單位
DPDT On-Off-(On) 5 A @ 28 V dc PCB Through Hole - - - - 6.35mm 10.41mm Phenolic - 10mΩ
RS庫存編號 710-9606
製造零件編號1825137-5
TWD190.00
單位
Single Pole Double Throw (SPDT) On-Off-On 400 mA @ 20 V PCB Through Hole - - - - - 6.86mm Phenolic - 10mΩ
RS庫存編號 710-9753
製造零件編號3-1825136-6
TWD145.00
單位
Single Pole Double Throw (SPDT) Latching 400 mA @ 20 V PCB Through Hole - - - - - 12.19mm Phenolic - 10mΩ
RS庫存編號 710-9589
製造零件編號1-1825137-9
TWD124.00
單位
Single Pole Double Throw (SPDT) On-Off-On 400 mA @ 20 V Panel Mount Solder - - - - 6.35mm 10.41mm Phenolic - 10mΩ