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XS 27/28/29/30/31xx

Product catalog summary

Overview: The document provides technical specifications for the HC-49/U quartz crystal units manufactured by KVG Quartz Crystal Technology. These units are AT-Cut and operate within a frequency range of 2.4 to 300 MHz.

Specifications:

Package Heights: HC-49/U at 13.4 mm, HC-49/11 mm at 11.5 mm, and HC-52/9 mm at 9.70 mm.
Temperature Stability: Ranges from -55°C to +105°C and -20°C to +70°C with nominal temperature stability of ±5°C.
Overtone Frequency Ranges: Various overtone frequencies are specified with tolerances ranging from ±50 ppm to ±2 ppm.
Calibration Tolerance: ±10 ppm, with nominal temperature specified for oven applications.

Standards and Enclosure:

Complies with standards such as DIN 45110, IEC 122-3, NFC-93-601, and MIL-H-10056.
Features a welded metal enclosure with an inert atmosphere and wire leads.

Electrical Characteristics:

Motional Resistance (R1) varies with overtone frequency, ranging from 250 Ω to 200 Ω.
Standard resonance for fundamental crystals is load resonance with CL = 30 ± 0.5pF.
Shunt capacitance is specified as C0 = 7pF max.

Modifications and Options:

Options for modifications include a third wire (ground), 3-point mounting for extreme accelerations, and SMD versions with metal clips.
Corresponding modified part numbers are provided for each modification type.

Catalog excerpts

Quartz Crystal Units AT -Cut, 2.4 - 300 MHz - 11.0 -4.9 ■ Options Package Height: X Adder to PartNr. Welded metal enclosure (inert atmosphere) with wire leads Calibration tolerance: ± 10 ppm 1) Nom. Temp. = Nominal temperature for oven application to be given with the order. Motional Resistance R1 Standard resonance for fundamental crystals: load resonance with CL = 30 ± 0.5pF Overtone crystals: series mode Crystal units with different tolerances or Modifications: 3rd wire (ground) : 3-point mounting for exposure to extreme accelerations (shock and vibr.) : 3-point mounting for exposure to extreme accelerations (shock and vibr.) and 3rd wire (ground) : SMD-Versions with metal clip : D-74922 Neckarbischofsheim P.O.B. 61 74924 Neckarbischofsheim Waibstadter Strasse 2 - 4 Tel: +49 (0) 7263 / 648 - 0 Fax: +49 (0) 7263 / 6196 e-mail:[email protected] Handelsregister: Amtsgericht Mannheim Nr. 340185 Geschaftsfuhrer: M. Klimm; G. Krauskopf

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XS 27/28/29/30/31xx

XS 27/28/29/30/31xx

Catalog excerpts

All KVG Quartz Crystal Technology GmbH catalogs and technical brochures