Spec Sheet List:
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 | O-1975LX Spec-Sheet | 179.6 KB |
Magnetic Circuit Elements, Inc. offers a range of adjustable inductors engineered for precision and reliability. These inductors provide controlled inductance through either manual or electrical adjustment, supporting both signal and power applications. Typical adjustment ranges are around 15%, with some designs reaching 30%, depending on the core gap configuration. Small-gap cores provide larger tuning ranges, while large-gap cores deliver better resolution and long-term stability. Operating temperatures up to 80°C ensure consistent performance over time.
Manual Adjustable Inductors
Manual adjustable inductors feature a pot core with an adjusting screw, allowing hands-on tuning to meet circuit requirements. These components are ideal for circuits where flexibility and fine control of inductance are necessary.
Key features:
- Adjustment range typically 15%, with some models up to 30%
- Small-gap cores → larger range; large-gap cores → higher resolution
- Compact footprint for PCB integration
Applications:
- Signal filtering and tuning in low-µH to low-mH ranges
- Prototype and development circuits requiring quick adjustments
- Circuits where precise inductance values are critical
Mechanical Specifications (O-1975LX series):
- Body diameter: 0.35 in
- Lead diameter: 0.020 in, 3 leads
- Lead-to-lead spacing: 0.200 in
- Vertical dimensions: 0.25 in
- Feature callout: 0.047 in
Electrical Notes:
- Measurements taken on HP4191A Impedance Analyzer
- Maximum part temperature: 80°C for long-term stability
These manual adjustable inductors deliver reliable tuning while maintaining stable performance.
Electrical / DC Adjustable Inductors
Electrical adjustable inductors, also called power inductors, can be tuned electronically and are suitable for higher current or DC applications. These inductors are often used in saturable reactors, magnetic amplifiers, or circuits that require both signal and power handling.
Key features:
- Inductance adjustment without manual intervention
- Supports high-current DC applications
- Frequencies can reach low MHz, depending on design
- Maintains performance under load with minimal thermal drift
O-1975LX Series Examples:
- O-1975L1: 2.5 µH, 0.14 Ω DCR
- O-1975L2: 3.5 µH, 0.18 Ω DCR
- Tolerances: ±10% inductance, ±15% DCR
Applications:
- DC adjustable circuits requiring power inductors
- Magnetic amplifiers and saturable reactors
- Signal circuits that need electronic tuning
Electrical adjustable inductors from MCE combine reliability and performance for circuits demanding stable inductance under power conditions.
Choosing the Right Inductor
Selecting the right adjustable inductor depends on your application:
- Manual adjustable inductors are ideal for prototypes, signal tuning, and applications where hands-on adjustment is preferred.
- Electrical adjustable inductors, or power inductors, are suited for high-current DC circuits or automated systems requiring electronic adjustment.
- Core configuration determines tuning range and resolution: small-gap cores for broader adjustments, large-gap cores for precise, stable performance.
MCE offers multiple O-1975LX series models, and our team can assist with custom solutions to meet specific electrical or mechanical requirements.
Get Started with MCE Adjustable Inductors
Magnetic Circuit Elements, Inc. provides adjustable inductors and power inductors that deliver precise, stable performance. Whether you need manual tuning for prototyping or electrical adjustment for DC circuits, MCE products perform reliably under signal and power conditions. Contact our team for more information or to discuss your requirements, or order the series that meets your needs. Optimize your circuits today with MCE adjustable inductors.