Custom inductor manufacturer tells you
I. Performance advantages of shielded power inductance in circuits?
Shielded insert inductance, closed circuit magnetic circuit structure design, large inductance, large current, long life, high reliability, low cost
USES: inkjet printer, copier, monitor, wideband data set, console, color TV, video recorder, lighting equipment, automobile electronic equipment
In addition, there are multi-size, multi-inductance, multi-specification inductance products for customers to choose, manufacturers can also customize production according to the different needs of customers.
Ii. Performance difference of shielded power inductor?
1. Differences in appearance
Shield inductance in external magnetic shielding structure, so it can be seen from the appearance must be without shielding inductance coil winding, shielding inductance cannot see the coil winding from appearance, however, there is one exception to note: those who do not see is not necessarily the shielding inductance coil, or they may be with heat sleeve type I sensor.
2. Differences in magnetic circuit composition and structure
3. The magnetic circuit structure of shielded power inductor is a closed magnetic circuit structure:
The closed magnetic circuit structure is composed of magnetic materials, and the magnetic impedance is very small, which means that the magnetic core is an annular magnetic core and a closed magnetic circuit structure.
4. Unshielded inductive magnetic circuit structure is an open magnetic circuit structure:
Due to the exposed magnetic circuit structure, it has an obvious air gap, and its impedance is relatively large, representing the U-type and EE type magnetic core.
Third, how about the performance of plug-in inductance?
What are the requirements for plug-in inductance testing?
Testing instruments and equipment: LCR tester, tin furnace, vernier caliper, multimeter.
1. Check the environmental requirements: good light;40W tube in a 1 meter range, inspection distance 30-45 cm.
2. Main test items:
1) Dirty objects;Thermal shrinkage tube material mismatch;The heat shrinkable tube falls off or becomes loose.
2) Body damage, needle black, oxidation rust.
3) The insulation layer of the painted wire falls off and the color does not match.
Specification performance of plug inductance
1) Size requirements: Whether the size does not match;Is the pin too hard or too soft?
2) Bending test requirements: Test conditions;Conduct 90° bending test for handoperated counterpins;Repeated test for 3 times, the test results are the same as before the test;No needle crack, fracture, damage, good folding performance and qualified products;(Do not perform this test if pin size is less than 15 mm).
3) Electrical characteristics: plug-in I-type inductance, impedance, Q-value factor, maximum DC resistance, rated current and other parameters do not match.Parameters that are consistent with sample identification are required.
Come on!Through a comparison between shielded power inductance and plug-in inductance, you can understand them!Can not be replaced casually!
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Specializing in the production of various types of color ring inductors, beaded inductors, vertical inductors, tripod inductors, patch inductors, bar inductors, common mode coils, high-frequency transformers and other magnetic components.
Post time: Aug-22-2020