Axial Lead Type Inductor 4.7uH 1W
This component is an axial lead fixed inductor, a fundamental passive electronic component designed to store energy in a magnetic field. Its construction features a cylindrical body with a wire coil wound around a core, and it is characterized by two leads that extend from opposite ends along its central axis. This classic axial design is intended for straightforward mounting onto printed circuit boards (PCBs), allowing the component to lie flat against the board’s surface.
The primary function of this 4.7 microhenry (µH) inductor is to provide a specific amount of inductance to an electronic circuit. It resists changes in current flow, making it essential for filtering out noise, smoothing signals, and energy storage in power supply applications. The component is engineered to maintain its inductance value under specified operating conditions while effectively handling the associated electrical currents without significant performance degradation.
Manufactured to be compact and lightweight, the inductor is coated with a protective layer of epoxy resin. This coating ensures robustness and provides long-term resistance to humidity, contributing to the component’s reliability in various environments. The nominal inductance value is indicated on the component itself using a standardized color code system, which allows for easy identification of its electrical characteristics during assembly and circuit debugging.
Features:
- Compact, small, and light-weight design.
- Wide range of available inductance values.
- High Q (Quality Factor) and self-resonant frequencies (SRF).
- Taping type convenient for automatic insertion.
- Epoxy resin coating ensures humidity resistance and long life.
Specifications:
| Parameter | Value | Condition / Note |
|---|---|---|
| Inductance (L): | 4.7 µH | Tolerance typically ±10% or ±20% |
| Rated Current: | 620 mA | Max |
| DC Resistance (DCR): | 0.4 Ω (Max) | |
| Self-Resonant Frequency (SRF): | 80 MHz (Min) | |
| Q Factor (Min): | 70 | Tested at 7.96 MHz |
| Operating Temperature: | -25 to +85 °C |
Applications:
- Televisions (TVs).
- Radios and Radio Transceivers.
- Telephones.
- Various Other Electronic Products.
Package Contents:
- 1x Axial Lead Type Inductor 4.7uH 1W


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