What are the differences between a wound inductor and a surface mount inductor?
Wound inductors are suitable for power circuits and are widely used in miniature televisions, LCD televisions, cameras, etc.
Characteristics of winding inductors:
1. Suitable for power circuits.
2. Surface-mounted type.
3. The appearance size conforms to the EIA standard, and there are various size specifications to choose from.
4. Good solderability and heat resistance, suitable for general soldering and reflow soldering.
Applications: This product is widely used in miniature televisions, LCD televisions, video cameras, portable VRCs, car stereos, thin radios, TV tuners, mobile phones, etc.
The role of winding inductors:
The role of chip wound inductors. Basic functions: filtering, oscillation, delay, notch, etc.;
Image speaking: "Pass through DC and block AC".
Detailed explanation: In electronic circuits, the inductor coil has a restrictive effect on alternating current. It can form high-pass or low-pass filters, phase-shifting circuits and resonance circuits with resistors or capacitors; the transformer can be used for AC coupling, voltage transformation, current transformation and impedance transformation, etc.
The role of the chip wound inductor seems to be somewhat reversed. We say that the capacitor is DC-resistant, while the inductor is just the opposite.
Its function is to pass DC resistance and AC current. At first! When a DC current passes through an inductor, the direction of the magnetic field generated is the same and does not change.
The positive and negative changes of the alternating current, so the magnetic field also changes. Due to the very short time from positive (negative) to negative (positive), if the positive potential is the first and continues to rise, then the magnetic field around the inductor continues to increase, and when it reaches the top, it is the largest. At this time, the potential begins to decline. Due to the existence of the surrounding magnetic field, at this time the inductor will convert the surrounding magnetic field into electrical energy so that the electrical energy can be maintained for a period of time, and vice versa, thereby blocking the passage of the alternating current.
The differences between wound inductors and surface mount inductors
Surface mount inductors:
5. Surface mount high-power inductors.
6. With the characteristics of miniaturization, high quality, high energy storage, and low resistance.
7. Mainly used in computer display boards, notebook computers, pulse memory programming, DC-DC converters.
8. Reel packaging can be used for automatic surface mounting.
Features:
9. Flat bottom surface suitable for surface mounting.
10. Excellent end face strength and good solderability.
11. With high Q value and low impedance characteristics.
12. Low magnetic flux leakage, low DC resistance, and high current tolerance characteristics.
13. Tape packaging can be provided to facilitate automated assembly.
Product recommendation.
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