The UK-B0206-G4.3-250-JZ is an electronic part with tactile switches manufactured by USAKRO. It is a RoHS-compliant, 4.5 x 4.5 x 4.3mm miniature switch that is ideal for a wide range of applications, including medical equipment, consumer electronics, automotive electronics, and more. The switch features a voltage rating of 250V, a contact resistance of 30mO max, an operating temperature range of -25°C to +70°C, and a life expectancy of 1 million cycles. It also features an SPST contact configuration, a momentary operation, and a snap-action contact design. The switch is UL, CSA, and TUV approved and conforms to IEC61058-1 and IEC 60950-1 standards.