Summary

Product Model Names

Model Names of Surface-mount (SMD) Products

The model name system of our crystal oscillator is set as shown in the following two types according to the external dimensions.

1. External dimensions are less than 10.0 mm (both long and short sides are less than 10 mm)

Crystal Oscillator Model Name Configuration

①　Symbol for NDK: N
②　Symbols for products: See Table 1.
③④　The nominal dimensions(mm) of a product main body in the longitudinal direction is expressed in two digits. The third digit is rounded off.
⑤⑥　The nominal dimensions(mm) of a product main body in the lateral direction is expressed in two digits. The third digit is rounded off.
　　　Examples: 3.2 mm x 2.5 mm is expressed as 3225.
⑦　Symbols for constituent materials and sealing methods: See Table 2.
⑧　Detailed symbols for the order of model name registration
　　　TCXO,VCXO SPXO is function symbol.
⑨　Detailed symbols for the order of model name registration
　　　It is only the case of using ⑧ as function symbols.

2. External dimensions of 10.0 mm or more (either long or short side is 10 mm or more)

Crystal Oscillator Model Name Configuration

①　Symbol for NDK: N
②　Symbols for products: See Table 1.
③④　The nominal dimensions (mm) of a product main body in the longitudinal direction is shown in two digits. The third digit is rounded off.
⑤⑥　The nominal dimensions(mm) of a product main body in the lateral direction is shown in two digits. The third digit is rounded off.
　　　Examples: Package L:11.4±0.2・・・Symbols:11 Package L:9.6±0.2・・・Symbols:09
⑦　Symbols for constituent materials and sealing methods: See Table 2.
⑧　Detailed symbols for the order of model name registration:A to Z

Table 1 Symbols for products

Product symbol Product
H Oven-Controlled Crystal Oscillator (OCXO)
T Temperature-Compensated Crystal Oscillator (TCXO)
Z Simple Packaged Crystal Oscillator (SPXO) (Single end)
P Simple Packaged Crystal Oscillator (SPXO) (Differential)
V Voltage-controlled crystal oscillator (VCXO)
Y Voltage-controlled SAW oscillator (VCXO)
R Real time clock RTC

Table 2 Symbols for sealing methods

Package Product Sealing
Classification		 Symbol Product sealing method Package material
Base Cover
Surface
Mount Type		 Hermetic sealing A Au/Sn solder sealing Ceramics Metal
C Adhesive sealing Ceramics
D Direct Seam welding Ceramics Metal
E Electron beam welding Ceramics Metal
F Resing sealing Ceramics Metal
M Resin mold Resin
P Adhesive sealing Resin
G Glass sealing Ceramics
R Resistance welding sealing Ceramics Metal
S Seam welding Ceramics Metal
Non-hermetic sealing W ― Board Metal
X ― Board Non-metal
Y ― Mold Metal
Z ― Mold Non-metal
Others B A printed board on which multiple crystal elements were mounted with a nameplate attached to its top surface
Others (Except Surface Mount Type) L Lead Terminal, Pin Terminal
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