10szt. Wkręt Matrycowy Induktor Drut Zwinięty mah--100uH 6A RoHS cc
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These are wound on a YELLOW ferrite core of T50-6, which is active in transformation within 3 - 40 MHz. As a intended choke the active region is from DC to some 30 MHz. Wound with about 2.7 m enamelled CU-wire; some 157 turns. Tested 3 in my 10pcs batch, and they were all 98 - 102 µH. A good performer. Happy buyer.
Dobrze zapakowane, otrzymane w dobrym stanie i bardzo szybki czas dostawy (7 dni kalendarzowych od zamówienia). Większość z nich przetestowano na 100uF (zdjęcie 2), ale kilka przetestowano na 90uF (zdjęcie 3), co mieści się w oczekiwanym zakresie, ale nie należy zbytnio polegać na wartościach nominalnych. Znalazłem te przydatne rzeczy, aby zachować w moim laboratorium elektroniki hobbystycznej, zwłaszcza, gdy bawię się konwerterami dc-dc do energii słonecznej, itp.
They are almost all at 100uH which i was not expected.The unexpected was their size which turned out to be really small.
10 sztuk cewek wysokoprądowych dla DC/DC.
Dobra jakość w stosunku do ceny
Inductance (for all ten) is well within specs (two are 97.8 μΗ, all the rest between 99,8 and 102.8 μΗ). To measure them I used a dedicated L/C meter, which has two scales, one for small inductance values, and one for large ones. My MASTECH MS8222H multimeter - which can also measure inductance – in the lower range of 0-2mH gives lower values compared to the ones obtained from the dedicated L/C meter, while for higher values both instruments give almost the same reading. Having checked both instruments with some small coils that had a label with their exact inductance value , I now trust the dedicated one. Exactly like other reviewers have said, for the 6A nominal current I was skeptical, so I decided to measure one of them. Well, the result was above my expectations. After 30 minutes at 3 Amperes DC, it had stabilized to 61 degrees Celcius, which I think is more than acceptable (see photo). I would push it a little further, if my power supply could give me more current, as I guess it can go up to 4 Amperes without problem. Concluding, 10 nice inductors for a very nice price. So, another 5 star. Thank you, Banggood.
Wire Diameter is only 0.55mm, you'd better not use it over 1.5A, but at this price, who cares?
Dokładnie tak jak opisano i szybka dostawa 👌
low price and good accurate 6A seems to be a bit optimistic !
They are nice but look small. Anyways, handy to have some of these. Great for making lc filters.