The AIRPAX / SENSATA M39019/01-230S is a low-power, magnetic, trip-free, one-pole circuit breaker conforming to MIL-PRF-39019. It is designed to provide overcurrent protection in a variety of electronic systems and equipment. The circuit breaker's sealed construction ensures reliable operation in harsh environments. It is commonly used in military and aerospace applications where compact size and robust performance are critical. The part number includes a dash number that corresponds to specific characteristics such as current rating, time delay, and resistance or impedance, as detailed in Table I of the MIL-PRF-39019/1H specification.