A surgical device includes an adapter assembly including a tubular housing having a proximal end portion configured to couple to a handle assembly, and a load sensing assembly disposed with the tubular housing. The load sensing assembly is configured to measure a load exerted on the tubular housing and includes: a sensor body including a pocket defined therein； a load sensor circuit disposed within the pocket and coupled to the sensor body； a signal processing circuit disposed within the pocket and electrically coupled to the load sensor circuit； a cover defining a cavity and disposed over the pocket and enclosing the load sensor circuit and the signal processing circuit therein, the cover being coupled to the sensor body thereby forming a first hermetic seal therebetween； and a thermal management material disposed within the cavity and in contact with the load sensor circuit and the signal processing circuit.
