Y17P21121FP is a PVA series short-stroke key switch designed for momentary or push-push operation with either 2 make contacts (DPST) or 2 changeover contacts (DPDT) configuration. The switch features a compact design with total travel of 2.4 ± 0.2 mm and latching travel of 1.5 mm for push-push variants, with operating force options of 1.2 N, 1.7 N, or 3.5 N depending on the series selected. Electrically, it supports a maximum switching power of 3 W DC at 32 V DC with a maximum current of 100 mA DC, initial contact resistance of = 100 mO, and operating life of = 1 × 105 operations for momentary mode or = 1 × 106 operations for push-push mode. The switch operates reliably over a temperature range of -40°C to +85°C and is RoHS compliant, making it well-suited for automotive applications such as air conditioning and lighting controls, as well as video equipment, remote controls, and electronic games.