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Hello, while using my MacBook the other day it started crackling and smoke came out of the keyboard. Everything seems to be working with the exception of the wifi. I figured the wifi antenna fried. However when I opened it up to investigate there is a small black capacitor or diode that fried on the main board. It has NEC CN7 on it. Where can I buy this? I am having a hard time trying to find out what this is.
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that is a 33uF 20% 16V Tantalum-Poly capacitor in a Case-B3 package.
Besides having the schematic it helps to know how to determine this based on the marking.
NE C
NE for NeoCapacitor
C Production Date Code (Capital C = manufactured in Mar. 2017
CN7
Rated Voltage 16V
Capacitance 33uF
Positive Polarity to the left with two lines of markings =B case
Datasheet from here
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Thank you very much. Now I just need to find one. Funny thing is this probably only costs about 10 cents
Here is a search of Mouser showing compatible ratings from the same manufacturer of the original part. Be sure to confirm the dimensions with the datasheet before ordering.
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It’s a tantalum capacitor. I haven’t located what the rating on that should be.
similar to this:
https://www.vishay.com/docs/40180/tmcu.p...
If anyone has a datasheet for this model, they can get you the Farad / Voltage ratings.
It appears to be in parallel with another capacitor. Usually (not always) when they place 2 in a set like that, they have the same rating. You might check the rating on it’s neighbor and compare it to the values for the pair a bit to the left.
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Can you give us some background on what happened.
How about posting a good clear image on the burnt component and the area its located and post it here for us to see 在已经存在的问题里加入图片
If you can I would recommend you first try to get Apple to service this under warranty before attempting to fix this your self.
由 Dan 完成的
Well I was using the Macbook to surf the web when she decided to start sending up smoke signals. It is about a year and a half old. I did not buy the extended warranty. I also do not have an Apple store I can just run to as I live in Guam.
This is probably my last Apple product I will ever buy. $2000 and it didnt even make it 2 years. My old white macbook still works and its 11 years old. I was at one point Apples biggest fanboy but this and another issue with my iphone losing all cell service has left a terrible taste in my mouth.
由 michael 完成的
The NEK CN7 is a resister not a capacitor
由 A1RV Master Techs 完成的