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22uH SMD Inductor RH127-22UH 12*12*7mm 220 2.9A

SKU: Q49Y8F4PRI
The 22µH SMD Inductor RH127-22UH is a compact, high-performance surface-mount power inductor designed for energy storage and filtering in switching circuits. With a 12×12×7mm footprint and a current rating of up to 2.9A, it is commonly used in DC-DC converters, power supplies, and voltage regulation modules. The marking “220” on the component indicates an inductance value of 22 microhenries (22µH),...
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Specifications

Specifications:

Package Type: SMD (Surface Mount Device)
Body Dimensions: 12mm × 12mm × 7mm
Core Type: Ferrite core (shielded)
Marking Code: “220” (represents 22µH)
Mounting: PCB surface mount
Weight: Approx. 2–5g

Additional Resources

SMD 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 22µH SMD Inductor RH127-22UH is a compact, high-performance surface-mount power inductor designed for energy storage and filtering in switching circuits. With a 12×12×7mm footprint and a current rating of up to 2.9A, it is commonly used in DC-DC converters, power supplies, and voltage regulation modules.

The marking “220” on the component indicates an inductance value of 22 microhenries (22µH), following the standard inductor code system.

 Features

  • Inductance: 22µH (marked as “220”)
  • High Current Capability: Up to 2.9A
  • SMD Design: Suitable for automated PCB assembly
  • Compact Size: 12mm × 12mm × 7mm
  • Shielded Construction: Reduces electromagnetic interference (EMI)
  • Low DC Resistance (DCR): Improves efficiency
  • Stable Performance: Reliable under varying load conditions