SMD air core RF inductors are high-frequency inductive components that feature a coreless design. By eliminating the magnetic core, they avoid core saturation and core losses entirely. This results in excellent high-frequency performance and a high Q factor.
These inductors are widely used in RF amplifier input/output matching networks, narrowband tuning circuits, broadband filters, and RF decoupling applications.All products are RoHS compliant and environmentally friendly. High-reliability versions are also available for aerospace, defense, and other mission-critical applications.
Applications
📡RF Amplifier Matching
Input and output matching networks for narrowband RF amplifiers
📻RF Tuning Circuits
Frequency tuning in wireless communication equipment
🔊Broadband Filters
Key inductive components in filter networks
📶RF Decoupling
Noise suppression in high-frequency circuits
📱Mobile Communication Devices
Smartphones
Base stations
Two-way radios
🛰️Aerospace and Defense
High-reliability versions for mission-critical systems
📺Broadband Communication Systems
Satellite communications
Microwave transmission equipment
Series in this family
| Product Series | Length(mm) | Height(mm) | Width(mm) | DCR Max(mΩ) | ||
| SMAR quadrate coils | 1.30-2.97 | 1.40-1.83 | 1.83-2.14 | 3.4-10.0 | ✉ | |
| SMAR toroidal coils | 2.21-10.55 | 1.37-5.90 | 1.42-6.35 | 1.1-90.0 | ✉ | |
| SMAR1210 | 3.3±0.3 | 2.7±0.2 | 2.6±0.2 | 1.1-3.9 | ✉ | |
| SMAR1812 | 4.9±0.3 |
| 3.8±0.2 | 4.2-33.0 | ✉ | |
| SMAR4024 | 10.5 | 6.0 | 7.0 | 15-90 | ✉ | |
| SMAR05 Series | 2.67-5.84 | 2.67-3.56 | 2.79-3.73 | 6.35-11.3 | ✉ |
📧Frequently Asked Questions (FAQ)
Q1. What are the advantages of air-core inductors compared with magnetic-core inductors?
Air-core inductors have no magnetic core loss, resulting in higher Q factors and lower high-frequency losses. They are ideal for RF amplifier matching networks and narrowband tuning applications.Because they do not use a magnetic core, their inductance values are generally lower and are best suited for nH-range applications.
Q2. How do I choose between the SMAR05 and SMAR1814 series?
SMAR1814 Series
- Inductance range: 5.5 nH to 22 nH
- Ultra-compact size: 1.35 × 1.83 mm
Ideal for compact portable devices
SMAR05 Series
- Inductance range: 27 nH to 500 nH
- Higher Q factor (up to 230)
- Higher current rating (up to 5.7 A)
- Suitable for RF power amplifier matching and other high-performance applications
Q3. Do you support custom inductance values? What is the minimum order quantity (MOQ)?
Yes.We support customization of:
- Non-standard inductance values
- Special dimensions
- Higher-precision specifications
Standard models are available with flexible MOQ requirements. For customized products, please contact us with your application details for evaluation and quotation.
Shinhom is dedicated to setting a high bar of excellence for industries that integrate or utilize magnetics technologies in our SMD air core RF inductors products.
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