The 34CMSP12B2M7QT is a Series 34C sub-miniature toggle switch featuring SPDT (Single Pole Double Throw) circuitry designed for space-constrained applications. It incorporates a brass chrome-plated toggle handle, nickel-plated brass bushing, and stainless steel housing with epoxy-sealed terminals. The switch is rated for 3A at 125VAC or 28VDC with Q-option contacts, offers 30,000 electrical life cycles at full load, and maintains contact resistance of 10 milliohms maximum. Operating across -30°C to 85°C with 1,000 V RMS dielectric strength and 1,000 megaohms minimum insulation resistance, this switch is UL recognized (File E35289) and RoHS compliant. It is commonly used in instrumentation, control panels, and compact electronic equipment where reliable switching and minimal footprint are essential.