Crystal Oscillator n Product Model Names According to the external size of an oscillator, two systems are used to name our crystal oscillator models: 1. When any external length is shorter than 10.0 mm (when the length in both longitudinal and lateral directions is less than 10 mm) Configuration of crystal oscillator model names 1 Symbol for NDK: N Symbols for products: See Table 1. The nominal length (mm) of a product main body in the longitudinal direction is expressed in two effective digits, and the third digit is rounded off. The nominal length (mm) of a product main body in the lateral direction is expressed in two effective digits, and the third digit is rounded off. Example: When the package longitudinal length is 7.0±0.15, the two digits are 70. When the package lateral length is 5.0±0.15, the two digits are 50. Symbols for sealing methods and structures: See Table 2. Detailed symbols for the order of model name registration: A to Z 2. When the external length is longer than 10.0 mm (when the length in both longitudinal and lateral directions is less than 10 mm) Configuration of crystal oscillator model names 2 Symbol for NDK: N Symbols for products: See Table 1. The nominal length (mm) of a product main body in the longitudinal direction is expressed in two effective digits, and the third digit is rounded down in principle. The nominal length (mm) of a product main body in the lateral direction is expressed in two effective digits, and the third digit is rounded down in principle. Example: When the package longitudinal length is 11.4±0.2, the two digits are 11. When the package lateral length is 9.6±0.2, the two digits are 09. Symbols for sealing methods and structures: See Table 2. Detailed symbols for the order of model name registration: A to Z co07_071108_modelname1_e Crystal Oscillator n Product Model Names Table 1 Symbols that mean products Product symbol Product H Oven-Controlled Crystal Oscillator (OCXO) P Simple Packaged Crystal Oscillator (SPXO) T Temperature-Compensated Crystal Oscillator (TCXO) V Voltage-Controlled Crystal Oscillator (VCXO) W Frequency Controlled Crystal Oscillator (FCXO) Table 2 Symbols for sealing methods and structures Product Sealing Symbol Classification A C D E Hermetic F sealing M P Common to all products G (Surface-mount type including R products other than oscillators) S W Non-hermetic X sealing Y Z Package Classification Special Oscillator (other than surface-mount type) B L Package Material Package Classification Base Cover Ceramics Metal Au-Sn solder sealing Ceramics Adhesive sealing Ceramics Metal Direct seam welding Ceramics Metal Electronic beam sealing Ceramics Resin Resin sealing Resin Resin molding Resin Adhesive sealing Ceramics Glass sealing Ceramics Metal Resistance weld sealing Ceramics Metal Seam welding Metal Board – Board Non-metal – Mold Metal – Mold Non-metal – A printed board on which multiple crystal elements were mounted with a nameplate attached to its top surface Lead wire terminal Pin terminal co08_080115_modelname2_e