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The SMP1304 series of plastic packaged, surface mountable, low capacitance (0.3 pF) silicon PIN diodes is designed for attenuator applications from 5 MHz to beyond 2 GHz. The thick 100 μm I region of these PIN diodes makes them very attractive for use in low-distortion PI and TEE attenuators commonly found in TV distribution applications. The 1 μs typical carrier lifetime of these diodes results in a resistance of 20 Ω maximum at 1 mA and 7 Ω maximum at 10 mA. The SMP1304 series is available in a selection of plastic packages: as a single diode in a small footprint SOD-323 package, and in a variety of configurations in an SOT-23 package, including the low inductance (0.4 nH) SMP1304-007. The SMP1304-019, a three-diode junction designed for insertion in PI attenuators, is available in an SOT-143 package. The SMP1304-027 is available in an SOT-5 package as a fourdiode array designed for insertion in commonly used four-diode PI attenuator circuits.