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Reed Relays

A reed relay is an electrical switch consisting of an insulated case containing a coil of wire and a number of reeds. Reeds are thin strips of metal, typically made of stainless steel, nickel-iron alloy, or silicon iron. They are hinged and have a physical contact gap at one end. When an electric current runs through the coil, it generates an electromagnet that attracts the reeds and brings them back together, initiating the contact. Reed relays can have a single contact or multiple contacts.

BT05-2A66 Application Field and Working Principle

The BT05-2A66 reed relay is a three-pole Single In-Line (SIL) reed relay with a switching capacity of up to 500 VAC. It has an operating voltage of 12 to 24 VDC and current ratings of 0.1 to 1.2 A. It is the most suitable for applications where low switching power is required, such as signal switching, circuit testing, switching of small currents, and protection of sensitive circuit components. It is also ideal for controlling electromagnetic or solenoid valves, relays, motors, and other types of actuators.

The BT05-2A66 has two sets of reed contacts; a Normally Open (NO) contact set and a Normally Closed (NC) contact set. The NO contacts open when the coil is energized and when the coil is de-energized, the contact opens again. The NC contacts close when energized and the contact opens again when de-energized. This dual-contact design allows for switching with greater precision. The BT05-2A66 is equipped with an over-temperature and short-circuit protection circuit, providing optimal protection against damage.

The BT05-2A66 reed relay also has a low set-up time, making it suitable for high-speed applications. Its small size allows for easy mounting on circuit boards and other applications where space is limited. Its low cost and high reliability are also beneficial for most applications. In addition to the longer contact life compared to mechanical relays, the BT05-2A66 has low coil power consumption and no contact arching, reducing maintenance costs.

The BT05-2A66 reed relay is a high-quality, reliable solution for various types of demand control, signal switching, and other low-power applications. Its numerous features, such as protection circuit, higher contact life, small size, and low power drain, make the BT05-2A66 the ideal choice for many industrial applications.

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