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AT25LSD 数据表(PDF) 17 Page - Knowles Electronics |
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AT25LSD 数据表(HTML) 17 Page - Knowles Electronics |
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17 / 60 page ![]() www.knowlescapacitors.com 15 Air Trimmers - A Series The only internally sealed Air Trimmer Voltronics’ concentric ring Air Trimmer capacitors are designed for use at frequencies up to 1.5 GHz. They are ideal for applications such as mobile radios, aerospace communication, crystal oscillators and filters, radar, cable TV and innumberable other commercial and military programs. The unique internal O-ring seal make wave soldering and vapor degreasing possible without the need to attach a separate cap. “A” Series - Solder sealed and qualified to MIL-C-14409. Other features include: Ten full linear turns Internal stops Extreme stability under shock and vibration Screw head does not move in and out Extended shaft option of metal or plastic Long life with no dynamic tuning noise Note: All parts shown here can be ordered as non-magnetic: Add “NM” to Part Number, i.e., NMAP10 General Specifications A_5 A_10 A_14 Capacitance Range 1.0 - 5pF 1.0 - 10pF 1.0 - 14pF Q (min) at 100MHz @ Max. C* 5,000 5,000 3,000 DC Working Voltage 250 250 125 DC Withstanding Voltage 500 500 250 Temperature Coefficent 50±50 ppm/˚C / -50±50 ppm/˚C 50±50 ppm/˚C / -50±50 ppm/˚C 50±50 ppm/˚C / -50±50 ppm/˚C Insulation Resistance @ 25˚C 106 MΩ 106 MΩ 106 MΩ Seal 40 pounds/in2 40 pounds/in2 40 pounds/in2 Operating Temperature - 65˚C to +125˚C - 65˚C to +125˚C - 65˚C to +125˚C Rotational Life 10000 Turns 10000 Turns 10000 Turns Tuning Torque 0.5 to 5.0 in-oz 0.5 to 5.0 in-oz 0.5 to 5.0 in-oz Shock 1,500g, 0.5 millisecs. 1,500g, 0.5 millisecs. 1,500g, 0.5 millisecs. Vibration 50g at 10 - 2000 Hz 50g at 10 - 2000 Hz 50g at 10 - 2000 Hz * Self-resonant frequency and Q are assured with no terminals on parts. A1 J 8 HV Refer to page 14 OPTIONS SERIES CAPACITANCE LEAD STYLE CONTACT ARMS FOR SHORT RF CURRENT PATH NON-ROTATING MOVEABLE ELECTRODE PERMANENT O-RING SEAL PTFE SPACER FOR POSITIVE GUIDANCE 0.50” (12.7) 0.30” (7.62) a Knowles Precision Devices brand TM |
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