This newly developed Alps compact detector switch from Tenrod Australia P/L, triggers an off state when depressed automatically. Named the SPVS Series, this two-way operation-type normal-closing detector switch, offers strong potential in a variety of compact electronic applications, such as digital cameras, portable audio devices and mobile telephones.
Today’s digital cameras, digital video cameras and other digital devices, while certainly small and thin, also boast remarkably increased functionality. This has placed growing importance on accurate detection to prevent data loss caused by operational error, such as when opening and closing the lid on a device’s battery or memory card slot. Compact detector switches, therefore, are essential in detecting movement in these mechanisms.
The SPVS Series of compact detector switches detects both vertical and horizontal movement and boasts a great variety of functional options. The SPVS Series boasts eight formats including: Alps’ first compact detector switch development, the normal-close-type; the traditional normal-open-type that triggers an on state when depressed; a right or left lever placement type; and a type that allows for flexibility in mounting with or without a positioning boss. This abundant variety of options frees design, allowing for compact detector switch configuration in various situations and conditions.
Inside this product’s small frame, the detection function controlled by the stroke, from its resting point through full extension measures 1.55mm. In normal-close-types and normal-open-types, a 1.15mm off-stroke and a 1.20mm on-stroke are assured, respectively. Also, by applying Alps’ long-developed high-precision processing technologies, initial on-off positioning tolerance was successfully kept within a ±0.18mm range (generally ±0.30mm). This small degree of tolerance absorbs inconsistencies that occur due to finger grip measurement gaps and mounting gaps from solder misalignment in manufacturing. In addition, it contributes to improved flexibility in set engineering.
SPVS Series dimensions are 3.5mm x 3.3mm x 1.0mm in width, depth and height, respectively, which makes it compatible for loading into ultra-compact miniature digital devices. Alps also realised an even smaller mounting area by adopting a J-bent terminal.