Ceramic Resonators

DIRECT offers a full line Resonators which meet the performance requirements of today's industrial applications. Ours consumer grade products are rated from -20 to +80 °C, and industrial standards offer stable performance with an operating temperature range. The temperature variation and aging characteristics of the automotive grade serve the market well, providing reliable start up and stable oscillation in microprocessor circuits across a wide variety of applications.

It should be noted that automotive and industrial application circuits, especially in critical applications, should be evaluated and characterized by DIRECT for stability. Please contact our piezo engineering group for IC characterization at the beginning of your design process. We highly recommend all companies to pursue the characterization process which will eliminate potential design issues and liability with regard to stability. DIRECT offers two extending frequency range in MHz and kHz.

CERAMIC RESONATOR - PDF - Download Entire Ceramic Resonator Catalogue.

Piezo Ceramics (MHz)

Thumbnail Type and Description
(ZTA) Completely Washable Epoxy Coated
Direct's MHz (ZTA) resonator series cover the frequency range of 1.79 MHz to 60.00 MHz with an initial frequency tolerance fo±0.5%, stability ±0.3% at operating temperature -20°C ~ +80°C, and aging tolerance ±0.3%. The tight tolerance frees the design engineers from having to use Quartz Crystals higher cost components and still achieve desired performance and reliability targets.
Download (ZTA) PDF
(ZTT) with Built-in Capacitor
Direct produces miniaturized, high-performance ZTT resonator series using its superior fabrication, assembly and packaging technologies. The ZTT device offers frequency range from 1.79 MHz to 60.00 MHz with an initial frequency tolerance of ± 0.5%, stability tolerance ± 0.3% at -20°C ~ +80°C, and aging tolerance ± 0.3%. The ZTT resonator features built-in capacitance with 3 lead terminals to eliminates any need for external loading capacitors and reduces component count. These devices conform to the RoHS directive.
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(ZTAC/ZTTC) Surface Mount Resonators
Direct ZTAC and ZTTC surface mount resonator series meet the frequency tolerance ±0.5%, temperature tolerance ±0.3% ~ ±0.4%, and aging tolerance ±0.3%. The ZTAC and ZTTC covers the frequency range of 1.79 MHz to 50.00 MHz. ZTTC series features a built-in load capacitance. This feature eliminates any need for external loading capacitors and reduces component count, increases reliability and reduces size. All ZTAC and ZTTC series are surface mount devices (Chips) with operating temperature range is -20°C to +80°C.
Download (ZTAC / ZTTC) PDF

Piezo Ceramics (KHz)

Thumbnail Type and Description
(ZTB) for Remote Control and Microprocessor Series
The ZTB series owe their development to Direct's expert technologies and the application of mass production techniques typically utilized in the manufacture of piezoelectric ceramic components. Because of their consistent high quality and high mechanical Q, the ZTB series are ideally suited to remote control unit and microprocessor applications.
Download (ZTB) PDF
(ZTBY) Surface Mountable Series
The surface mountable resonator (ZTBY) is one of ZTB device series with the frequency range of 375 kHz to 1,250 kHz. Initial frequency tolerance is ± 0.5% which compares very favorably to the norminal ±2% ~ ±3% requirements of one chip microprocessors. Stability and Aging Tolerance narrows to ± 0.3%. The ZTBY Resonator provides reliable start up and stable oscillation in microprocessor circuits across a wide variety of applications.
Download ZTBY PDF
(ZTB 456F) for HI-FI Stereo Application
ZTB 456F Multiplexers Series is designed to provide frequency modulation for HI-FI stereo application.
Download ZTB 456F PDF
(ZTB 500/503F) for TV Horizontal Synthesizer Circuits
ZTB 456F Multiplexers Series is designed for TV horizontal synthesizer circuits.
Download ZTB 500/503F PDF
(ZTB 912F) for HI-FI Automobile Stereo Application
The ZTB912F Multiplexers Series is specially designed to provide frequency modulation for HI-FI automobile stereo application.
Download ZTB 912F PDF