QuinStar’s QCY series cryogenic isolators and circulators are designed for mission-critical applications in quantum computing, superconducting devices, space-based systems and ultra-sensitive test environments. These passive components operate down to millikelvin with insertion loss as low as 0.15 dB and isolation up to 44 dB.

The QCY series is available in a variety of frequency bands, including 4 to 8 GHz, 4 to 12 GHz, 18 to 26.5 GHz and beyond, with single devices or multi-port array configurations. These solutions are engineered for integration into dilution refrigerators or cryostats and are compatible with a range of mechanical form factors.

QuinStar’s cryogenic circulator/isolator arrays enable qubit readout pathways for today’s most advanced quantum research programs. With Mµ-metal and double-shielded options available, QCY units offer magnetic isolation, minimizing interference in dense cryogenic environments.

Every QCY device is manufactured and tested in the U.S. using precision ferrite technology and proprietary magnetic assembly techniques. QuinStar’s cryogenic components meet NASA EEE-INST-002 derating guidelines and are trusted by national labs, defense programs and quantum hardware startups alike. The QCY series provides signal integrity required for next-generation experimentation in quantum infrastructure and ultra-low noise environments.

QuinStar Technology Inc. has been engineering the future of modules and cryogenic components since 1993 and has expertise in mmWave products, microelectronic assembly, rapid prototyping and mass customization. QuinStar products range from standard catalog components to specialized high performance RF signal generating, amplifying and conditioning components.

QuinStar Technology, Inc.
Torrance, Calif.
https://quinstar.com