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The term “type designation” used here refers to the number assigned to a solid state device in accordance with JESD370B, Designation System for Discrete Semiconductor Devices. The term “type designation” may be applied to the original number assigned (without suffix) or to a number with a suffix letter. The type designation assignment is designated by a 1N (2 lead) or 2N (3 lead) followed by 4 numbers. The material submitted via an RDF and assigned a type designation is sometimes referred to as a "data sheet", to obtain copies of data sheets, please contact Phileasher Tanner at JEDEC.