The O53EBE149A-134C is a 1/2" bimetallic disc thermostat from the Airpax 5003 series, designed for accurate and reliable thermal sensing and switching in space-constrained applications. This RoHS-compliant device features a positive snap-action mechanism with reinforced bimetallic disc operation, delivering reliable repeatability and fast thermal response due to its low mass construction. The thermostat offers excellent shock and vibration resistance with an overall depth of only 0.250 inches without projecting terminals, making it ideal for surface and air sensing applications. The 5003 series provides multiple terminal and mounting options to accommodate various application requirements, and is available with sealing options for high-humidity and contaminating atmosphere environments. Common applications include HVAC systems, appliance controls, and industrial equipment where compact, dependable thermal switching is essential.