Johanson

Company Profile:

Johanson MFG, integrated into ​Knowles Precision Devices in 2017, is a world-class supplier of ​trimming capacitors, ​non-magnetic variable inductors, and ​microwave tuning components. The company provides a wide range of variable capacitors for RF and microwave applications. Its ​Giga Trim® capacitors are miniature components designed for high-resolution tuning in RF power circuits. Air dielectric capacitors are available in multiple sizes and mounting configurations, including integrated, self-locking, and constant-torque drive mechanisms. Ceramic trimming capacitors support surface-mount, stripline, and through-hole lead configurations. Johanson’s microwave tuning components deliver cost-effective solutions for tuning waveguides, cavities, and other microwave structures.

Key Products:

1. Non-Magnetic Variable Inductors

• ​Applications: Impedance matching and loading for low-noise amplifiers (LNAs), power amplifiers (PAs), and mixers.

2. Giga Trim® Trimmer Capacitors

• ​Features:
  • Simplify fine-tuning in precision RF/microwave circuits.
  • Eliminate time-consuming abrasive trimming, trial-and-error adjustments, and fixed-capacitor swaps.
  • Direct integration for streamlined circuit optimization.

3. Cera-Trim® Thin-Trim Capacitors

• ​Advantages:
  • Resistant to flux and cleaning solvents.
  • Ideal for high-reliability environments requiring robust performance.

4. Thin-Trim Capacitors

• ​Applications:
  • Critical for space-constrained and performance-driven designs.
  • Single-turn design offers exceptional electrical characteristics despite compact size.
  • Frequency range: Up to ​2 GHz, optimized for flat-profile implementations.