10pcs Toroid Core Inductor Wire Wind Wound 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.
Bem embalado, recebido em bom estado e tempo de entrega muito rápido (7 dias de calendário a partir da encomenda). A maioria desses testes foi feita em 100uF (foto 2), mas um par testado em 90uF (foto 3), que está dentro do intervalo esperado, mas um lembrete para não depender muito dos valores nominais. Acho estes itens úteis para guardar no meu laboratório de electrónica, especialmente quando estou a brincar com conversores de DC-DC para energia solar, etc.
They are almost all at 100uH which i was not expected.The unexpected was their size which turned out to be really small.
10pcs de bobinas de alta corrente para DC/DC.
bom valor para o dinheiro
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?
Exatamente como descrito e entrega rápida! 👌
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.