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The O121SM4 is an absorption single-pole four-throw switch with an operating frequency of 0.01 to 12 GHz. The switch provides greater than 29dB isolation and less than 4.0dB insertion loss over the entire perating frequency range. The built-in driver circuit uses 0/-5V logic control. With excellent switching characteristics and port standing wave characteristics over the entire operating frequency range, it is ideally suited for microwave hybrid integrated circuits and multi-chip modules as well as low-power systems. The switch uses a 4x4 mm surface-mount non-leaded ceramic package to achieve hermetic encapsulation. The pin pad surface is gold-plated and is suitable for reflow solder mounting processes.