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47UH CDRH127 SMD inductor ET9274

SKU: 9F96NFWBMH
The 47µH CDRH127 SMD Inductor (ET9274) is a high-performance surface-mount power inductor designed for energy storage, filtering, and voltage regulation in power electronics. It belongs to the CDRH127 series, known for its robust construction, compact footprint, and high current handling capability. With an inductance of 47 microhenries (47µH) and a typical marking code “470”, this inductor is widely used in...
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Specifications

Specifications:

  • Package Type: SMD (Surface Mount Device)
  • Series: CDRH127
  • Dimensions: ~12mm × 12mm × 7mm
  • Core Type: Ferrite (magnetically shielded)
  • Construction: Wire-wound drum core
  • Mounting: PCB surface mount
  • Weight: Approx. 3–6g

Additional Resources

Inductor.PDF

FAQ

1. What is an inductor?

An inductor is a passive electronic component that stores energy in the form of a magnetic field when electric current flows through it. It is typically made of a coil of wire wound around a core.

2. What is the unit of inductance?

The unit of inductance is the Henry (H), named after Joseph Henry. In practical circuits, smaller units like millihenry (mH) and microhenry (µH) are commonly used.

3. What are the main applications of inductors?

Inductors are used in:

  • Power supplies (SMPS)
  • Filters (to reduce noise)
  • Transformers
  • Oscillators and tuning circuits
  • DC-DC converters

4. How does an inductor behave in AC and DC circuits?

In a DC circuit, an inductor initially resists changes in current but eventually behaves like a short circuit.
In an AC circuit, it continuously opposes changes in current, creating inductive reactance that depends on frequency.

5. What factors affect the value of an inductor?

The inductance value depends on:

  • Number of turns in the coil
  • Core material (air, ferrite, iron)
  • Coil shape and size
  • Spacing between turns
View full product details

The 47µH CDRH127 SMD Inductor (ET9274) is a high-performance surface-mount power inductor designed for energy storage, filtering, and voltage regulation in power electronics. It belongs to the CDRH127 series, known for its robust construction, compact footprint, and high current handling capability.

With an inductance of 47 microhenries (47µH) and a typical marking code “470”, this inductor is widely used in DC-DC converters, SMPS, and power management circuits where stable and efficient energy transfer is required.

Characteristics

  • Inductance: 47µH
  • Marking Code: 470
  • High Current Capability: Suitable for power circuits
  • Low DC Resistance (DCR): Improves efficiency
  • Shielded Structure: Minimizes EMI
  • Compact SMD Form Factor: Saves PCB space