The HMC292LM3C is a 17 - 31 GHz surface mount passive GaAs MMIC double-balanced mixer in a SMT leadless chip carrier package. The mixer can be used as a downconverter or upconverter. Excellent isolations are provided by on-chip baluns, which require no external components and no DC bias. All data is with the nonhermetic, epoxy sealed LM3C packaged device mounted in a 50 Ohm test fixture. Utilizing the HMC292LM3C eliminates the need for wirebonding, thereby providing a consistent connection interface for the customer.