Customized Inductance Magnetic Ring Small Toroidal Inductor DIP Inductor T9*5*3
1.Product Description
Small circular inductors play a crucial role in various electronic circuits due to their compact design and excellent performance. Its most prominent feature is its compact size, which allows it to perfectly adapt to circuit boards with limited space. Whether it is small consumer electronic devices such as Bluetooth earphones, smartwatches, or complex high-density integrated circuits, it can be easily laid out. The circular structure endows it with excellent magnetic shielding performance, effectively concentrates the magnetic field, greatly reduces magnetic flux leakage, not only reduces electromagnetic interference to surrounding components, but also enhances its ability to resist external interference and improves the electromagnetic compatibility of the circuit.
There are many advantages to small circular inductors. The high permeability magnetic core material and tightly wound winding provide precise and stable inductance values, with minimal fluctuations under different temperature and current conditions, laying the foundation for stable circuit operation. Low DC resistance effectively reduces power loss when current passes through, improves energy utilization efficiency, reduces heat generation, and extends the service life of components and circuits. At the same time, it can withstand a certain degree of high current without saturation, ensuring normal operation in high current application scenarios.
In terms of functionality, small circular inductors have a significant effect. It is like an energy storage device that can convert electrical energy into magnetic energy storage in the circuit. When the current changes, it releases or absorbs energy in a timely manner to maintain current stability. It plays a key role in ensuring the continuous and stable output of the power supply in the switching power supply circuit. When combined with capacitors, it becomes an efficient filter that can effectively filter out high-frequency noise and ripple in the circuit, output smooth and stable DC voltage, and provide reliable power for electronic devices that require extremely high power purity. In addition, relying on the principle of electromagnetic induction, it can also hinder sudden changes in current, suppress instantaneous current surges, protect circuit components from damage, and ensure stable operation of the circuit.
| Model Number | T9*5*3 Toroidal Inductors |
| Material | Magnetic ring ,copper wire |
| Place of Origin | Guangdong, China |
| Brand Name | ZXY |
| Usage | Electronic equipments |
| Wire dia. | 0.025~2.0 |
| Winding | 2.5~50000 |
| DC Resistance (mΩ) | Customized |
| Shape | Toroidal |
2.Features
1. Compact size: The prominent feature of a small circular inductor is its compact size, which makes it highly adaptable on circuit boards with limited space. In small electronic devices such as smartphones, tablets, Bluetooth earphones, etc., space is extremely valuable. Small circular inductors can be easily laid out to meet the needs of circuits for inductive components without occupying too much space.
2. Good magnetic shielding effect: The circular structure can effectively concentrate the magnetic field, reduce magnetic flux leakage to the surrounding space, and lower electromagnetic interference to surrounding electronic components. At the same time, it also enhances its resistance to external electromagnetic interference, improves the electromagnetic compatibility (EMC) of the entire circuit system, and is suitable for occasions with high requirements for electromagnetic environment.
3. Tight winding: The winding is tightly wound around the annular magnetic core, reducing leakage inductance and improving the stability and consistency of inductance performance. This makes the performance difference of small ring inductors smaller during mass production, which is beneficial for ensuring the overall quality and stability of electronic products.
3.Small Toroidal Conductor Testing and Inspection
1. Inductance measurement: Use professional inductance measuring instruments, such as LCR bridge, to measure the inductance value of the made small circular inductor to ensure that its inductance value meets the design requirements. When measuring, it is important to choose the appropriate testing frequency and signal amplitude to obtain accurate measurement results.
2. DC resistance test: Measure the DC resistance of the inductor using a multimeter or a specialized DC resistance tester to check if it is within the specified range. Excessive DC resistance may cause the inductor to generate excessive heat during operation, affecting its performance and reliability.
3. Saturation current test: Using specialized testing equipment, gradually increase the current passing through the inductor, monitor the change in inductance value, and when the inductance value drops to a specified proportion (such as 80% of the initial inductance value), the current at this time is the saturation current. Ensure that the measured saturation current meets the requirements of the circuit design.
4. Other performance tests: As needed, performance indicators such as self resonant frequency and quality factor of the inductor may also be tested. Through these tests, the performance of small loop inductors can be comprehensively evaluated, and qualified products can be screened to ensure that they can meet the needs of different application scenarios.
