ALCO TT-21 Miniature Toggle Switch DPDT On-On PC Mount 0.4VA The ALCO TT-21 is a compact and reliable miniature toggle switch designed for precise control in electronic circuits. Featuring a Double Pole Double Throw (DPDT) configuration, this switch offers versatile functionality suitable for various applications. Key Features Switch Function: On-On Contact Rating: 0.4VA (AC/DC) Voltage Rating: 20V AC/DC Actuator Type: Standard Round Actuator Length: 5.61mm Mounting Type: Through Hole Termination Style: PC Pin Operating Temperature Range: -30°C to 85°C Electrical Life: 60,000 Cycles Design and Construction The TT-21 switch is engineered with a standard round actuator measuring 5.61mm in length, providing a comfortable interface for manual operation. Its through-hole mounting design ensures secure attachment to printed circuit boards, while the PC pin termination facilitates straightforward soldering and integration into electronic assemblies. Performance and Reliability With a contact rating of 0.4VA and a voltage rating of 20V AC/DC, the TT-21 is suitable for low-power signal applications. It operates efficiently within a temperature range of -30°C to 85°C, making it adaptable to various environmental conditions. The switch boasts an electrical life of 60,000 cycles, ensuring long-term reliability in repetitive use scenarios. Applications The ALCO TT-21 miniature toggle switch is ideal for applications requiring compact size and dependable performance, including: Industrial control systems Telecommunications equipment Instrumentation panels Consumer electronics Its DPDT On-On configuration allows for seamless switching between two circuits, making it a versatile component in complex electronic designs. Conclusion The ALCO TT-21 Miniature Toggle Switch combines compact design with robust performance, offering a reliable solution for various electronic switching needs. Its precise engineering and durable construction make it a valuable component in both commercial and industrial applications.