The FS1ST from Sumitomo Heavy Industries is a Single-Stage Stirling Cryocooler that has been part of several missions and programs such as the Venus probe Akatsuki (PLANET-C), ASTRO-E2, and Hyper spectrum sensor (equipped on the International Space Station). It has a service life of greater than 5 years and a cooling capacity of 2W (77K). This cryocooler has a mass of 5 kg and a power consumption of 55 W. It measures 250 mm (capillary tube) and is ideal for cooling detectors and heat shields.
