Unshielding Inductor LCHA

Product Overview

The LCHA Series Unshielding Inductor delivers robust power handling in through-hole designs requiring extreme current capacity (up to 47A) and wide inductance ranges (3.9μH to 156mH). Featuring polyolefin shrink-tubed wire-wound construction, these axial chokes outperform standard Power Inductor solutions in industrial environments with superior thermal resilience (-55°C to +125°C) and vibration resistance. Their unshielded design enables 30% better heat dissipation than enclosed equivalents.

Key Specifications

• Extended Inductance Range: 3.9μH to 156mH with ±10% tolerance.

• Ultra-High Current Handling: Up to 47A saturation current (Isat) and 6A Idc with ultra-low DCR (as low as 0.007Ω).

• Extreme Thermal Performance: Operates from -55°C to +125°C – ideal for automotive under-hood applications.

• Robust Construction: UL VW-1 flame-retardant tubing withstands harsh environments.

• Efficiency Optimization: 40% lower DCR than conventional Transformers in equivalent power classes.

Technical Advantages

Unlike shielded RF Inductor components, these Unshielding Inductor chokes eliminate core saturation risks at high currents. Their open-winding design achieves:

1. 50% higher thermal dissipation than pot-core Power Inductor alternatives.

2. Stable inductance retention (±5%) under 10% Isat overload conditions.

3. Direct compatibility with wave soldering processes (260°C withstand).
   For EMI-critical systems, integrate with our EMC Filter solutions to suppress HFI noise in motor drives or Sensor power networks.

Typical Applications

1. Industrial Power Systems: SCR/TRIAC controls and switching regulators handling >30A currents.

2. Automotive Electronics: EV charging modules and Sensor interface circuits requiring -55°C operation.

3. Renewable Energy: Solar inverter chokes and wind turbine Power Converter stages.

4. Heavy Machinery: Welding equipment and industrial motor drives paired with EMC Filter networks.

5. High-Current Supplies: Server PSUs and telecom rectifiers exceeding 40A loads.

Performance Validation

• Current Ratings: Isat defined at 10% inductance drop (HP4284A verified @1kHz/0.1V).

• Durability Testing: 1000+ thermal shock cycles (-55°C⇄125°C) with <5% parameter drift.

• Safety Compliance: UL VW-1 flame certification and RoHS materials.

Why Choose Unshielded Axial Design?

• No Core Saturation: Critical for Power Converter systems with current spikes.

• Cost Efficiency: 35% lower cost than equivalent shielded chokes.

• Serviceability: Field-replaceable in Transformers-based power systems.

• Vibration Resistance: Essential for automotive Sensor mounting locations.

Series in this family