Product Overview
The Air Core Inductor SMAR series delivers exceptional high-frequency performance with inductance values from 1.65nH to 538nH. Featuring an open-core architecture, these components achieve Q factors up to 130 and self-resonant frequencies (SRF) as high as 12.5GHz. Ideal as RF Inductors for sensitive circuits, they support Power Converter designs with current handling up to 4.4A and ultra-low DCR (down to 1.1mΩ).

Key Features

• True Air Core Construction: Eliminates magnetic saturation for stable inductance (±2%–10% tolerance)

• High Q & SRF: Optimized for RF Inductor systems (tested at 50–800MHz)

• Current Handling: 1.6A to 4.4A (Irms @20°C rise)

• EMC Filter Ready: Broadband noise suppression up to 12.5GHz

• Compact SMD Packages: 1.4×1.8mm to 6.4×5.9mm for dense PCB layouts

• Robust Termination: Ag-plated leads ensure solder reliability (260°C reflow)

Applications

• RF Inductor Circuits: Impedance matching in 5G/WiFi modules

• EMC Filter Networks: Noise reduction for medical sensors and IoT devices

• Power Converters: DC/DC modules in automotive Power Converters

• Transformers: Coupled with energy transfer systems in XDSL

• Sensor-Integrated Systems: Automotive telemetry and industrial Sensor nodes

• RF Decoupling: High-frequency bypass in server Power Converters

• Broadband Filtering: LCD TVs and network equipment Transformers

Electrical Specifications

• Inductance Range: 1.65nH–538nH (±2%–10% @150–800MHz)

• Q Factor: 60–130 (typ. @400MHz)

• SRF: 490MHz–12.5GHz (e.g., 12.5GHz for SMAR3037-2N5□)

• DC Resistance: 1.1mΩ–90mΩ

• Operating Temperature: -40°C to +125°C

• Irms Derating: 100% rating at 25°C, 80% at 105°C

Packaging & Compliance

• Tape & Reel: EIA-48 compliant (2000–7500 pcs/reel)

• RoHS: Lead-free reflow compatible (255–260°C peak)

• Solvent Resistance: Exceeds MIL-STD-202E

Why Choose SMAR Series?
These Air Core Inductors excel in high-frequency precision. As premier RF Inductors, they enable compact EMC Filters while serving as Power Inductors in Sensor-driven automotive networks. Their compatibility with Power Converters and Transformers ensures efficient energy transfer. For designs demanding minimal loss and maximal SRF, SMAR delivers unmatched RF integrity.