FDSE and FDSD Side-Actuated Switches

By C&K 132

FDSE and FDSD Side-Actuated Switches

C&K's FDSD and FDSE series of micro-mini, side-actuated detect switches are suitable for applications that require vertical side detection.

The FDSD series of switches are available in an extremely small package size of just 4.20 mm x 3.60 mm x 1.20 mm, with optional flat or bent terminals which allow for simple PCB mounting. The SPST-NO beryllium copper contacts have a resistance of less than 1 Ω and are rated for 10 mA at 5 VDC with a lifetime of 50,000 operations. The detect switch requires a maximum force of 40 gf and can travel through an angle of 60 degrees or 3.05 mm.

The FDSE range adds an angled capability to the family. Housed in the same package size, the SPST-NC contacts are also beryllium copper and offer a 50,000-operation lifetime. The contact resistance is less than 3 Ω and the electrical rating is 1 mA at 5 VDC. The angled detect switch requires a maximum force of 35 gf and can travel through an angle of 60 degrees or 3.14 mm.

Both product families offer long travel detection in an incredibly small PCB-mount package, allowing for a wide range of travel detection where limited space is available. With an operating temperature range of -10°C to +60°C, FDSD and FDSE switches are commonly used in consumer electronics, medical devices, and safety control applications, and they are also suitable for a wide range of other applications. For example, the switches are commonly used in inhalers to detect the presence of a cartridge in order to activate medicine delivery and to confirm the dose has been dispensed.

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