31NT91-3

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Toggle Switches

31NT91-3 toggle switch is a subminiature switch which contains two or more switch positions in the small space. It is widely used for the small or hand-held electronic device to provide a switching circuit. The design and structure of 31NT91-3 switch enables it to achieve a double-pole, double-throw function. The switch also provides momentary switching action.

Application fields

31NT91-3 toggle switch is specially designed for applications where there is limitation of space. Its mini size allows it to fit into the cramped spaces. It is often used in automotive switches, navigation lamps, audio-visual devices, marine applications, and instrumentation devices. They are also used in keyless entry systems, medical devices, security devices and joystick control.

Working principle and features

The 31NT91-3 toggle switch consists of two or more switch positions, a spring-loaded armature, a switch actuator, a spring-loaded plunger, a series of contacts and a terminal mounting block. When the switch is in operation, the armature is open in the off-state, or moves when the switch is in the on-state. When the switch is in the on position, the armature holds the plunger and when the switch is in the off position, the contacts are kept open by the spring-loaded armature. This action leads to the momentary switching action.

The features of 31NT91-3 include:

• Small size and single pole, double throw switch configuration.
• Uses momentary switching action.
• Available in several mountings.
• Wide range of operating temperature and mechanical life.
• Limited travel distance.

31NT91-3 toggle switch is a reliable, durable and highly secure switch ideal for electronic devices that require a long operating life and secure switching function.

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