Power Inductors – SMD WE-HCI 15uH 14A DCR=9mOhms AEC-Q200

74435571500 – 15µH Shielded SMD Power Inductor – Würth Elektronik | AEC-Q200 Compliant

The Würth Elektronik 74435571500 is a high-performance, shielded SMD power inductor engineered for demanding power management applications. Part of the WE-HCI series, this 15µH metal composite drum core inductor delivers a robust 14A saturation current with ultra-low 9mOhm DCR, ensuring efficient energy storage and minimal power loss. Designed to meet AEC-Q200 automotive standards, it offers exceptional reliability for critical systems. PCX supplies this component with guaranteed authenticity, same-day shipping, and dedicated technical support.

Key Features

• High Current Handling: 14A saturation (Isat) and rated current.
• Ultra-Low DCR: Just 9mOhm DC resistance maximizes efficiency.
• Automotive Grade: AEC-Q200 qualified for harsh environments.
• Shielded Construction: Reduces EMI interference in sensitive circuits.
• Wide Temp Range: Operates from -40°C to +125°C.
• Compact SMD Design: 18.30mm x 18.20mm footprint (1890 package).

Technical Specifications

This wirewound inductor features a shielded drum core with metal composite material, providing stable inductance (15µH ±20%) tested at 100kHz. Its self-resonant frequency is 14MHz. The nonstandard SMD package (0.362″ max height) ensures reliable surface mounting. The component is RoHS compliant and designed for high-vibration resilience.

Typical Applications

• Automotive DC-DC converters and ADAS modules
• Industrial power supplies and motor drives
• Server/Telecom SMPS (Switch-Mode Power Supplies)
• Solar inverters and energy storage systems
• Consumer electronics requiring high-current filtering

About Würth Elektronik

Würth Elektronik is a globally recognized leader in passive electronic components, renowned for innovation in magnetics, capacitors, and connectivity solutions. With over 75 years of engineering excellence, the company sets industry benchmarks for quality, particularly in automotive and industrial sectors where reliability is non-negotiable.

Their commitment to rigorous testing and AEC-Q200 compliance ensures components withstand extreme conditions. Würth Elektronik’s vertically integrated manufacturing guarantees traceability and consistency, making them a trusted partner for mission-critical designs worldwide.

About Power Inductors

Power inductors store energy in magnetic fields during current flow, playing a vital role in voltage regulation and noise suppression. In DC-DC converters, they smooth switched currents while minimizing ripple, directly impacting system efficiency and thermal performance. Selecting the right inductor involves balancing inductance, current rating, DCR, and size constraints.

Modern SMD power inductors like the WE-HCI series enable compact, high-density power designs across automotive, renewable energy, and IoT applications. Their shielding mitigates electromagnetic interference (EMI), essential for compliance with stringent EMC standards in sensitive electronic ecosystems.

Packaging Options

PCX offers flexible packaging to suit your production needs: Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats. Specify requirements during checkout for optimized handling.

Frequently Asked Questions (FAQs)

Q: Is this inductor suitable for automotive engine control units (ECUs)?
A: Yes, its AEC-Q200 qualification and -40°C to +125°C operating range make it ideal for automotive applications like ECUs.

Q: What is the difference between saturation current (Isat) and rated current?
A: Rated current is the maximum DC current before temperature rise exceeds specs. Saturation current (14A here) is when inductance drops by 20% due to core magnetic saturation.

Q: Can I use this for high-frequency switching above 1MHz?
A: While functional, its 14MHz self-resonant frequency suggests optimal performance below 5MHz. Verify with datasheet for your specific switching frequency.

Q: How does shielding improve circuit performance?
A: The shielded design contains magnetic flux, reducing EMI noise coupling to nearby components and simplifying EMC compliance.

Q: Why choose metal composite core over ferrite?
A: Metal composite cores handle higher DC bias without saturating and offer better thermal stability vs. traditional ferrites.

Q: Does PCX provide samples before bulk orders?
A: Yes! Contact PCX support to request samples of this inductor for prototyping and testing.

Note: Product images are representational. Refer to datasheet for exact dimensions and specifications.

Ready to Power Your Next Project?

Optimize your power designs with Würth Elektronik’s high-efficiency inductor. PCX stocks the 74435571500 for immediate dispatch with full traceability. Order today for same-day shipping and expert support!