HongAn Microwave Co., Ltd.
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| Brand Name: | Hoan |
| Model Number: | HALA0800503R |
| MOQ: | 10 |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
HALA0800503R Air Core Inductor: 11nH, 8-Turn RF Coil (4–20 GHz)
Why Choose the HALA0800503R for High-Frequency RF Applications?
In high-frequency RF front-ends, power amplifiers, and millimeter-wave (mmWave) systems, standard SMD chip inductors often fail due to core losses and low Self-Resonant Frequency (SRF). The HALA0800503R Air Core Inductor resolves this bottleneck.
By utilizing an air-core (hollow-core) design, this micro-spring coil eliminates magnetic saturation and core-induced distortions. Wound with precisely 8 turns of 0.05mm high-conductivity enameled wire, it delivers a stable 11 nH ± 20% inductance with an ultra-high Q-factor across the 4 GHz to 20 GHz frequency band.
Dimensions
Comprehensive Technical Datasheet (HALA0800503R)
| Technical Parameter | Certified Specification Value | Test /Environmental Conditions |
| ModelCode | HALA0800503R | Standard B2B Part Number |
| Nominal Inductance | 11 nH + 20% | Tested at high-frequency standard |
| Operating Frequency | 4GHz - 20 GHz | Supports wideband applications |
| Number of Turns | 8 Turns | Helix wound configuration |
| Wire Diameter (WD) | 0.05 mm | Ultra-fine copper wire |
| Inner Diameter (ID) | 0.30 mm | Core physical boundary |
| Lead Wire Length | > 8.0 mm (Min. 8mm) | Straight, symmetrical leads |
| Lead Finish Process | Tinnedto the Root | Optimized for low RF loss soldering |
| Max. Rated Current | 400 mA | Rated for active RF paths |
| Operating Temperature | -55°Cto +125°C | Severe environmental compliance |
Compare: HALA0800503R vs. HALA0600503R
| FeatureModel | HALA0800503R (This Product) | HALA0600503R (Previous Model) |
| Turns | 8 Turns | 6 Turns |
| Inductance | 11 nH 20% | 7 nH + 20% |
| Frequency Range | 4 GHz - 20 GHz | 5 GHz -20 GHz |
| Wire /Inner Dia. | 0.05 mm /0.30 mm | 0.05 mm / 0.30 mm |
| Primary Use Cases | Deeper impedance matching, lower frequencybands (4-10GHz) within the microwave range | Ultra-high frequency (5-20GHz)coupling, bypass circuits |
Engineering Mounting & PCB Layout Best Practices
To ensure the HALA0800503R operates at its peak performance without introducing unwanted parasitic capacitance, RF design engineers must follow these guidelines:
•Avoid Solder Bridging at the Base: The leads are tinned to the root. Ensure precision soldering to avoid solder run-up onto the active turns.
•Perpendicular PCB Placement: Always mount the helical coil axis perpendicular to the RF signal microstrip/stripline. This drastically minimizes unwanted electromagnetic coupling.
•Keep Leads Ultra-Short: Although the lead length is ≥8.0mm,prune them to the minimum necessary length on the PCB to prevent parasitic lead inductance.
•Post-Tuning Immobilization: Once the RF circuit tuning is finalized, apply a drop of low-loss, low-dielectric RF glue to secure the 8-turn body against physical shock.
Test data
FAQ
Q1: Can I request customized turns or lead lengths for the HALA0800503R?
A: Yes. We provide flexible custom winding services. While the standard HALA0800503R has 8 turns with leads ≥ 8.0mm, we can adjust the turn count, wire diameter, and pitch to meet your specific RF matching needs.
Q2: What is the shelf life and storage recommendation for these micro air coils?
A: Because the leads are tinned to the root, they must be stored at 20–25℃ and 40%–60% RH to prevent tarnish or oxidation. Under these conditions, the shelf life is 1 year.
Q3: What is the lead time for batch B2B orders?
A: We keep standard stock of HALA0800503R for rapid prototyping. For bulk wholesale orders, lead times typically range from 1 to 2 weeks depending on the quantity.
