Compact Broadband Inductor High Density Capacitor For Broadband Operation

HALT20005 Conical Inductor Compact Size High Density Design for High Reliability Resonance Free Broadband Operation

HALT20005 Conical Inductor — Compact High-Reliability Broadband SMD Solution

The HALT20005 conical inductor delivers resonance-free broadband performance from 200MHz to 40GHz in a compact SMD footprint compatible with high-density PCB assembly. Built with MIL-STD-202 qualified construction and gold metallization, the HALT20005 provides the high reliability demanded by aerospace, defense, and telecom infrastructure applications where field failure is not an option.

Compact Design Without Compromise

Miniaturization in RF design often forces compromises in bandwidth, power handling, or reliability. The HALT20005 disproves this trade-off through its conical winding geometry, which achieves wideband performance in a fraction of the board area required by distributed-element alternatives. Available in EIA-standard 0603, 0805, and 1206 packages, the HALT20005 enables:

• Channel density: Up to 16 bias tee channels on a standard 50mm * 50mm PCB
• Low profile: Maximum height of 0.6mm (0603) to 1.2mm (1206) for height-constrained modules
• Automated assembly: Fully compatible with standard SMD pick-and-place and reflow soldering processes

High Reliability by Design

Field reliability data collected across 5 million device-hours of operation demonstrates a Mean Time Between Failure (MTBF) exceeding 10 million hours at 85°C ambient. This reliability is achieved through:

• Gold-on-nickel termination: Eliminates tin whisker risk and ensures solder joint integrity over 1,000+ thermal cycles
• Monolithic ceramic core: CTE-matched to alumina and LTCC substrates, minimizing thermal stress
• Hermetic-grade encapsulation: Moisture-resistant passivation layer rated to MSL 1 per J-STD-020
• Burn-in screening: Optional 48-hour burn-in at +125°C available for high-reliability programs

Performance Comparison: Conical vs. Traditional Technologies

Applications Requiring High Reliability

• LEO/MEO Satellite Payloads: Bias tee networks for multi-beam phased array antennas with zero-gravity-rated soldering
• Airborne Radar (AESA): T/R module bias injection in X-band and Ku-band fighter radar systems
• 5G mMIMO Base Stations: 64T64R antenna array bias networks with mean repair time > 10 years
• National security Software-Defined Radio: Wideband front-end bias for JTRS and HMS radio platforms
• Telecom Infrastructure: Tower-mounted amplifier bias tees rated for -40°C to +85°C outdoor exposure
• Medical RF Ablation: Broadband power delivery networks in multi-frequency RF ablation systems

Technical Specifications

Design Guidelines for High-Reliability Systems

PCB Material Selection: For applications above 20GHz, use low-loss laminates (Rogers RO4350B, Megtron 6, or equivalent) with a dissipation factor below 0.004 at 10GHz. Standard FR-4 is acceptable below 6GHz but will introduce additional insertion loss above 10GHz.

Thermal Management: At maximum rated DC current (500mA) and maximum DCR (0.8 Ohm), the HALT20005 dissipates 200mW. Ensure adequate copper pour on the PCB for heat spreading; a 10mm * 10mm ground plane area is recommended for continuous high-current operation.

Derating for Reliability: For mission-critical applications, derate DC current to 60% of maximum (300mA) and peak RF power to 50% (+27 dBm). This derating extends predicted MTBF beyond 50 million hours at 85°C.

Frequently Asked Questions

Q: Is the HALT20005 suitable for space applications?
A: The HALT20005 has been evaluated per MIL-STD-202 and demonstrates survivability through thermal vacuum cycling and vibration profiles consistent with LEO satellite requirements. Gold metallization eliminates tin whisker concerns. For Class S or ESA ECSS qualification, contact our engineering team for custom screening options including DPA, SEM, and radiation hardness testing.

Q: What is the lead time for production quantities?
A: Standard 3-5 working days for stock quantities up to 1,000 pieces. Production orders of 10,000+ pieces typically ship within 2-4 weeks. High-reliability screened lots with full lot traceability and CofC documentation require 4-6 weeks.

Q: Can you provide measured S-parameter data?
A: Yes. Every production lot includes S-parameter characterization from 10MHz to 43.5GHz using a calibrated Keysight PNA-X vector network analyzer. Typical S2P Touchstone files are available upon request for your specific impedance environment and PCB stack-up.

Contact our reliability engineering team for detailed qualification reports, MTBF calculations, and application-specific derating guidance on the HALT20005 high-reliability conical inductor series.