04021JR15ZBSTR

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1. Describe

The non-ideal characteristics of a true capacitor can be ignored at low frequency. Physical size imparts capacitor inductance and Dielectric and metal electrodes cause resistive losses, but these are usually The effect on the circuit is negligible. at very high radio frequencies communications (>100MHz) and satellite systems (>1GHz), these effects become important. Recognize that real capacitors behave inductively and resistive impedance in addition to capacitance, the ideal capacitor These high frequencies are an ultra-low loss component that can fully Features all parameters with full repeatability from one unit to another. Until recently, most high frequency/microwave capacitors were based on Firing ceramic (porcelain) technology. Ceramic dielectric material layer Interleaved with metal alloy electrode paste, then sintered into High temperature oven. The technique exhibits component variability Dielectric quality (loss, permittivity and insulation resistance), Variability in electrode conductivity and variability in physical size (affecting inductance). An alternative thin-film technology has been developed These differences are almost eliminated. It is this technology that is fully Incorporates Accu P® and Accu-P® to provide high frequency capacitors exhibit truly desirable characteristics.

2. FEATURES

Accu-P® meets the fast-growing demand for low-loss (high-Q) capacitors for use in surface mount technology especially for the mobile communications market, such as cellular radio of 450 and 900 MHz, UHF walkie-talkies, UHF cordless telephones to 2.3 GHz, low noise blocks at 11-12.5 GHz and for other VHF, UHF and microwave applications. Accu-P® is currently unique in its ability to offer very low capacitance values (0.05pF) and very tight capacitance tolerances (±0.01pF).

    1. The RF power handling capability of the Accu-P® allows for its usage in both small signal and RF power applications.

    2. Thin Film Technology guarantees minimal batch to batch variability of parameters at high frequency.

    3. Inspection test and quality control procedures in accordance with ISO 9001, CECC, IECQ and USA MIL Standards yield products of the highest quality.

    4. Hand soldering Accu-P®: Due to their construction utilizing relatively high thermal conductivity materials, Accu-P’s have become the preferred device in R & D labs and production environments where hand soldering is used.

3. APPLICATIONS

    1. Cellular Communications

    2. CT2/PCN (Cordless Telephone/Personal Comm. Networks)

    3. Satellite TV

    4. Cable TV

    5. GPS (Global Positioning Systems)

    6. Vehicle Location Systems

    7. Vehicle Alarm Systems

    8. Paging

    9. Military Communications

  10. Radar Systems

  11. Video Switching

  12. Test & Measurements

  13. Filters

  14. VCO’s

  15. Matching Networks

  16. RF Amplifiers

4. CAPACITOR STRUCTURE

5. The main Accu-P® properties are

    1. Internationally agreed sizes with excellent dimensional control.

    2. Ultra small size chip capacitors (1005) are available.

    3. Ultra tight capacitance tolerances.

    4. Low ESR at VHF, UHF and microwave frequencies.

    5. Enhanced RF power handling capablity.

    6. High stability with respect to time, temperature, frequency and voltage variation.

    7. Nickel/solder-coated terminations to provide excellent solderability and leach resistance.