HALT40012 470nH SMT Conical Inductor | Ultra-Wideband RF Choke up to 40GHz+

The HALT40012 brings the resonance-free performance of tapered conical winding to automated assembly lines. With flexible mounting options covering both SMT pads and flying leads, this 470nH broadband choke sustains continuous RF blocking from 50 MHz through 40 GHz while fitting into high-volume optical transceiver and microwave module production.

Ultra-Wideband Frequency Coverage up to 40GHz+

The tapered cone winding distributes turn-to-turn capacitance along a mechanical gradient rather than concentrating it at a single LC node. The result: no self-resonance notch, no mid-band S21 dip, and a self-resonant frequency beyond 40.0 GHz. VNA verification on TRL-calibrated microstrip fixtures confirms flat through-line insertion loss across the full 0.05-40.0 GHz rated span, with RF-DC isolation exceeding 1.5 kΩ throughout the band.

Custom Conical Inductor Manufacturing

Every parameter can be tailored to your design. Customization options include:

• Nominal inductance: 100 nH to 2000 nH (other values on request)
• Mounting style: SMT pads, flying leads, or dual-option delivery
• Wire gauge: 0.05 mm to 0.15 mm oxygen-free copper
• Taper profile and lead length for layout-specific integration
• Termination finish: gold or tin plating
• Packaging: tape and reel, or antistatic waffle pack

Typical customization cycle: engineering review within 24 hours, prototype samples in 5-7 working days, production lots in 15-25 working days. Each custom variant is VNA-characterized and shipped with its own .s2p data file.

Technical Specifications

Reliability Verification

Applications

• Automated SMT assembly of 100G/400G/800G optical transceiver bias networks
• Wideband bias tees and DC injection circuits to 40 GHz
• GaAs/GaN amplifier bias choking in Ka-band and Q-band systems
• High-speed photodiode decoupling in coherent receivers
• 5G FR2 phased-array element bias distribution
• Test and measurement equipment bias networks