这款4.7英寸iPhone于2014年9月19日发布,是iPhone 6 Plus的缩小版。

4265 个问题 查看全部

Back light coil L1503 Digikey supply

Has anybody ordered backlight coils off Digikey (fot the iphone 6,6s,7)and if so what is the part number they are using please?

I have read somewhere that the same specs as written in the schematic to match up on Digikey, the size is slightly different so this person setteled on a slightly lower rating to match the size

Thanks

回答此问题 我也有这个问题

这是一个好问题吗?

按维修分数 0
添加一条评论

1个答案

最有帮助的答案

The problem with some of the components that Apple uses in their designs is that they are either custom designs or only available with huge MOQ. You are correct that the Digikey models will not work as they are 2.8mm square and they simply will not fit. Some coils on the backside of the board are also hard to source because they are only 0.6mm high and everything standard is 1mm. It doesn’t sound like much but when you consider the density and clearance available, it makes a huge difference.

As for L1503, I order them from China. However, be aware that you never really know what you are getting because they are not “officially” labeled. I once ordered a batch from Jestar, a reputable supplier and when I checked them with an LCR meter, I realized that they were 1uH and not 15uH.

If you are going to using a different rating, keep in mind which ratings do what. For a coil, you have the inductance, the current rating and the ESR (equivalent series resistance). Using a slightly different inductance may or may not cause issues. The ESR is important because it causes internal heating and can have an effect on the overall performance (resistors, capacitors and coils interact and cause all kinds of filtering actions). Finally the current rating is what can make a permanent repair into a ticking time-bomb :>).

There are plenty of people selling this coil both stateside and internationally, that’s the preferred option.

这个答案有帮助吗?

按维修分数 2

评论:

Thanks Minho. I have just ordered a few IC's from that same supplier week ago, but have also recently read that what they are selling is junk. Can only give it a go. Trial and error. Thanks for your time

添加一条评论

添加你的答案

Lee 将永远感激不已
浏览统计数据:

过去的24小时: 0

过去的7天: 1

过去的30天: 8

总计 8