Resonators & Filters
Ceramic Crystal Resonators
Token's crystal resonator series meets updated industrial demands including wider frequency and operating temperature range, higher and more frequency stability, industrial standard ceramic surface mount packages. Customer's design and requirements are also encouraged and welcomed.
Ceramic Resonators
Token offers full ceramic resonator lines which meet the performance requirements of today's industrial piezo resonator applications. Ours consumer grade ceramic resonators are rated from -20°C to +80°C, and industrial ceramic resonator 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. Token offers ceramic resonators in two extending frequency ranges in MHz and KHz.
Ceramic Filters
For more than two decades, piezo technology has been instrumental in the proliferation of solid state electronics. A view of the future reveals that even greater expectations will be placed on piezoelectric material in the area of new applications and for more stringent performance criteria in current products. Traditionally, nearly all low and high-end AM / FM commercial radios use piezo band-pass devices. However, applications are also found in cordless telephones, cellular systems, 2-way communications, and the television industry.
As a world leader in the development of piezo technology, Token Electronics had been able to develop specialized piezo materials which when combined with an advance design have resulted in a complete line of practical, inexpensive piezo devices for entertainment and communications applications.
Ceramic Discriminator
For more than two decades, piezo technology has been instrumental in the proliferation of solid state electronics. A view of the future reveals that even greater expectations will be placed on piezoelectric material in the area of new applications and for more stringent performance criteria in current products. Traditionally, nearly all low and high-end AM / FM commercial radios use piezo band-pass devices. However, applications are also found in cordless telephones, cellular systems, 2-way communications, and the television industry.
Ceramic Trap
For more than two decades, piezo technology has been instrumental in the proliferation of solid state electronics. A view of the future reveals that even greater expectations will be placed on piezoelectric material in the area of new applications and for more stringent performance criteria in current products. Traditionally, nearly all low and high-end AM / FM commercial radios use piezo band-pass devices. However, applications are also found in cordless telephones, cellular systems, 2-way communications, and the television industry.
Saw Filters & Saw Resonators
Token RF Surface Acoustic Wave (SAW) filters and resonators include low loss filters for remote control receivers and mobile telephone and receive path.
RF Saw filters and saw resonators Feature with small external impedance matching with excellent rejection, low series resistance, quartz stability and small sizes for wireless equipments.
Dielectric Resonator Filter Patch Antenna
Dielectric Microwave components - Resonator Filter Patch Antenna are widely used in: Wireless Cellular Phones and Cable Televisions, Cellular Base Stations Direct Broadcast Satellite Receivers, Automobile Collision Avoidance Sensors, and so on.
Token microwave components are material with high Q, good temperature stability, and high d constant enables design of stable microwave oscillators. Dielectric microwave component utilizes the latest piezo technology enabling the most cost-effective designs to be housed in the lowest profile packages for extremely high performance within limited space. SMD and reflow soldering is available and mountable by automatic placing machine. Custom packages are available in Token. Please consult our sales representatives or engineers as regards the products of other frequency.
Resonators & Filters Application Notes
What is a Piezo-Ceramic
When a high D.C. voltage is applied to such ceramics, the directions of the spontaneous polarizations are brought to an uniformity and a ferroelectricity ceramics is attained. What is a Piezo-Ceramic - PDF (***KB)
Piezo-Ceramic Glossary
Resonators & Filters - Glossary Reference Page. Glossary - PDF (***KB)
Piezoelectric Devices Precaution Usage
The piezo by itself is not a clock, so it must be used with circuitry built into the IC to create the clock signal. The clock circuit consists of the passive resonator, quartz or ceramic piezo, and an active amplifier that is built into the IC. Please refer to this page for Piezo Electric Devices Precaution Usage. Piezoelectric Devices Precaution Usage - PDF (***KB)
Resonator and Filter Radial Taping Dimensions
Redial Taping Dimensions of Ceramic Filters, Resonators, Discriminators, and Trap Filters. Redial Taping Dimensions - PDF (298KB)
Applications & Notice
Design Notice
Operating Temperature Ranges
The Ceramic Resonators should not be operated beyond the Operating Temperature Range specified in the catalog.
Changes/Drifts in Oscillating Frequency
Oscillating frequency may drift depending upon the controlling IC and/or external capacitors C1 and C2 used in the circuit design.
Token standard resonator is adjusted with our standard measuring circuit. There could be slight shift in frequency other types of IC are used.
When you require exact oscillation frequency in your application, we can adjust it with your specified circuit on request.
Fail-Safe Design for Equipment
When using The Ceramic Resonators, it is recommended that you build a protective failsafe circuit into your design to prevent equipment damage in the event that the resonator malfunctions or fails.
Abnormal Oscillation
The Ceramic Resonators are always accompanied by spurious resonances. Spurious oscillations or stoppage of oscillation may occur depending on the circuit design (IC used, frequency characteristics of the IC, supply voltage etc.) and/or environmental conditions. These factors should be taken into consideration when designing the circuit.
Stray Capacitance
Stray capacitances and insulation resistances on printed circuit boards may cause abnormal oscillation or stoppage of oscillation. These factors should be taken into consideration when designing the circuit.
Overvoltage Spikes & Electrostatic Discharges
Voltage spikes and electrostatic discharges may cause damage/malfunction or failures of the resonators.
Abnormal Mechanical Stresses
Abnormal or excess mechanical stresses such as vibration or shock should be avoided when handling or storing resonators to prevent damage and cracking.
Surface Mounting Consideration
In automated mounting of The Ceramic Resonators on printed circuit boards, any bending, expanding and pulling forces or shocks to the resonator should be kept to a minimum to prevent electrical failures and/or mechanical damage to the devices.
Prohibited Applications
- Flow Soldering should not be used to solder ceramic resonators.
- Please do not apply excess mechanical stress to the component and lead terminals at soldering.
- Ultrasonic Cleaning and Ultrasonic Welding should not be used on ceramic resonators to avoid possible damage.
- Avoid washing in water because it could deteriorate the resonator's performance characteristics.
- Avoid resin coating or potting for humidity protection because it could deteriorate the resonator's performance characteristics.