44505-2612

Series:	SL-STI
Part Status:	Active

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Snap Action, Limit Switches—44505-2612

Snap action switches are electrical on/off switch devices used to detect physical or mechanical operations, or positional changes of a physical object. This type of switch is actuated by the movement of a physical object that plays the role of an actuator. When the actuator moves beyond the switch threshold, it triggers the switch to a different state.The 44505-2612 is a SPDT (single pole, double throw) snap action switch. Its upper lever actuates the switch when it is engaged. This is done by the actuator\'s downward motion which causes the switch\'s upper lever to rise, momentarily separating the common (C) contact from the normally closed (NC) contact and connecting it to the normally open (NO) contact. When the actuator is released, the upper lever is displaced downwards and the NC contact is rejoined.The 44505-2612 is designed to serve a wide range of applications. Its small size and low power requirements make it an ideal switch for embedded systems such as industrial-grade machinery, medical devices, sensors and vehicles. Its wide range of mechanical and electrical characteristics make it suitable for harsh environment applications.The 44505-2612 operates on the principle of “contact welding.” This refers to the fact that it is designed to handle high temperature and current levels. The contact faces of the upper lever are made from a tungsten alloy, making it highly resistant to metal migration or oxidation. The actuator is also made from a tungsten alloy, ensuring that the switch is highly reliable and suitably capable of withstanding high temperatures.The 44505-2612 also features a unique spring assembly that ensures accurate operation. The sprung lever is engineered to move easily during actuation and resist corrosion from the compressive forces of the actuator. This allows for accurate detection of positional changes with minimal power draw.Overall, the 44505-2612 snap action switch is ideal for a variety of applications that require reliable performance in harsh conditions. Its high reliability, wide temperature range and corrosion-resistant spring and contact faces make it an ideal choice for embedded applications.

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