1N8162US [Microchip]

They include a unique rectifier diode in series and opposite direction from the TVS to achieve a very low capacitance of 4 pF. This product series provides a working peak 'standoff' voltage selection from 5.0V to 170V with 150-watt ratings. They are very robust in hard-glass construction and use an internal metallurgical bond identified as Category 1 for high reliability applications. These devices are also available in axial leaded packages for surface mounting. Features include: high surge current and peak pulse power unidirectional protection for sensitive circuits; very low capacitance for high frequency or high baud rate applications; bidirectional capability with two devices in anti-parallel; triple-layer passivation; internal 'Category 1' metallurgical bonds; voidless hermetically sealed glass package; RoHS compliant versions are available.