Grįžti į Voltronics / Knowles

Voltronics / Knowles A1 & A4 PTFE Trimmers

Voltronics / Knowles A1 and A4 Polytetrafluoroethylene (PTFE) Trimmers are capacitors featuring a high-reliability solid dielectric, positive tuning stops, and up to 5 (A4) or 13 (A1) full turns of linear tuning. Voltronics / Knowles A1 PTFE Trimmers are an ideal replacement for conventional miniature-air and sapphire dielectric trimmers. A1 assures no intermittent noiseless performance. A4 PTFE Trimmers offer the shortest length of any similar trimmer capacitor.

Features

  • A1
    • High-reliability solid dielectric
    • Positive tuning stops
    • Up to 13 full turns of linear tuning
    • Includes 40psi sealed, high-voltage, and non-magnetic versions
  • A4
    • High-reliability solid dielectric
    • Positive tuning stops
    • Up to five full turns of linear tuning in the shortest length of any similar trimmer capacitor
    • Includes high-voltage, non-magnetic, and high reliability / low-voltage versions

Specifications

  • A1
    • Capacitance range
      • 0.5pF to 4pF (A1_4)
      • 0.5pF to 8pF (A1_8)
      • 0.6pF to 11pF (A1_12)
    • Working voltage
      • 125VDC (A1_8 and A1_12)
      • 250VDC (A1_4)
    • Withstanding voltage
      • 250VDC (A1_8 and A1_12)
      • 500VDC (A1_4)
    • Self-resonant frequency
      • 2.3GHz at 4pF (A1_4)
      • 1.7GHz at 8pF (A1_8)
      • 1.2GHz at 11pF (A1_12)
    • Number of turns
      • 7 (A1_4 and A1_8)
      • 13 (A1_12)
    • Q minimum at 100MHz at maximum C
      • 2000 (A1_12)
      • 3000 (A1_8)
      • 4000 (A1_4)
  • A4
    • Capacitance range
      • 0.45pF to 3pF (A4_3)
      • 0.6pF to 5pF (A4_5)
    • 125VDC working voltage
    • 250VDC withstanding voltage
    • Self-resonant frequency
      • 3GHz at 3pF (A4_3)
      • 1.8GHz at 5pF (A4_5)
    • Number of turns
      • 4 (A4_3)
      • 5 (A4_5)
    • Q minimum at 100MHz at maximum C
      • 2000 (A4_5)
      • 3000 (A4_3)
Paskelbta: 2020-04-17 | Atnaujinta: 2024-09-19