Iphone 3G/3GS fuse part number - GSM-Forum

mark4444 · 12-07-2010, 19:05

Hi to all,
I'm going to place an order from Digikey and I need to know the exact part number of the Iphone 3G and 3GS fuses.
It could sound like a stupid question, but after hours and hours of researches on the internet and also inside this forum, seems to be that the spec are a real mistery.

If there are also other fuses that I didn't found, please let me know (for a few dollars more I prefer to have them all).

Many thanks

Below is a picture showing the fuses:

mark4444 · 12-09-2010, 18:21

Ok...191 visits and nobody seems to know the exact part number of the fuses.
I found this datasheet from Littelfuse company. The fuses looks very similar to the one mounted on the Iphone 3GS. The appropriate size appear to be 0603, but there are too many versions and marking codes. Any help would be appreciated.

For 3G I really have no idea where to look for.

I have seen many post from people asking the specs of the fuses, but without replies. Seems to be that the common trick is to bridge the broken fuse with a wire.
This trick is extremely dangerous because the circuit will have no more protection.

Thanks

Max_B · 12-09-2010, 19:17

Man, a fuse is a fuse.

Just check if need 15A or 20A or the size, no matter even a DCT-4 fuse will fit.
There are no electronic value difference.
Don't bother yourself

BR
Max_B

mark4444 · 12-09-2010, 21:07

Hi max and thanks for your reply. The physical size should not be a problem, but I think that the other parameters should be most similar possible to the original ones. I don't know if require 15A or 20A.
May be it is better to wait someone that has already tested this replacement part and know the exact Digikey part number.
I think that I'm not the only one interested to the specs.
If we can close this thread with the exact Digikey part number I'm sure it will be helpful for all the community.

Thanks

Max_B · 12-10-2010, 16:17

M8

We don't work for NASA

15A 20A = same

BR
Max_B

nidirex · 12-11-2010, 19:17

Quote:

Originally Posted by Max_B

M8

We don't work for NASA

...
Max_B

No? Sure? I believe that..

mark4444 · 12-13-2010, 20:51

I'm not sure that 10-15A is the correct ampere range for Iphone 3G/3GS.
All datasheets I found from several companies show fuses with a max rating of 5-6A, at least for fuses suggested for mobile phone applications.
There are also higher values, but they are suggested for different applications and the physical size is much more bigger (the 3GS fuse is 2mm x 1.20mm and the 3G one is 1mm x 0.30mm approximately).
There's a big difference between 5A and 15A and I think that the ampere rating is not the only one value to take in consideration. In addition to that...15A and 20A are different values and every device require its own value.

Instead of giving generic replies suggesting random values that may cause device damage, the people reading this thread will have more benefits if someone experienced will post here the exact digikey part number already verified to be fully conformed to the original one.

Looking the forum I realized that I'm not the only one that has already asked this simple info and people got only generic response and controversy as seem is happening also in this thread.

Thanks

Max_B · 12-16-2010, 14:04

Here is NOKIA BB5 fuses features : 5119039 SM FUSE F 20A 32V 0603

BR
Max_B

mark4444 · 12-19-2010, 20:27

Hi Max, the Nokia fuse is 2A and not 20A. Anyway if you think this fuse can also work on Iphone this is a good starting point. I suppose that 3G and 3GS specs are the same, except the physical size.
Based on these specs the appropriate part number (Littelfuse Inc) seems to be 0435002 for 3G and 0467002 for 3GS.
A small note about 3GS: the above fuse size is 0603, a little smaller of the original. The correct size is 0805 (2012 Metric), but unfortunately Littelfuse doesn't have this size available. An alternative could be MFU08052 from Vishay/Beyschlag Inc.

The fuses mentioned here are standard ones while the original ones are resettable.
I tried to find resettable ones, but it's very hard because the specs are totally different.

Anyone experienced can confirm that the above parts are good for replacement?
I want to avoid leaving readers with the doubt if they are good or wrong.

Many thanks

Max_B · 12-19-2010, 20:31

Yes, NOKIA fuse will fit perfectly.
As Apple and NOKIA has both very similar power values, as all mobile phones have.
Take ANY fuse from any phone should fit all good.

BR
Max_B

mark4444 · 12-21-2010, 15:16

Max, thanks for your response. Before confirming that the above parts are correct...

Part MFU08052 is the fuse with the same size as the original Iphone 3GS, but I see that voltage rated is only "32VDC" while parts "0435002" and "0467002" are "32VAC, 32VDC".
Is 32VAC required?
I can't find any fuse with both of the features and if this feature is required it will be better to buy the part "0467002", even if the size is a little different than original one.

I would have preferred resettable fuses because the original ones have this feature, but seems to be that in the market there are no resettable fuses with the same specs.
Thanks

nidirex · 12-21-2010, 17:32

"resettable fuse" on DigiKey -> 2,943 occurrences.. not even one good?

I think that's more reasonable to replace with resettable type, alternatively oversized fuse.

mark4444 · 12-21-2010, 23:22

Hi nidirex...yes, unfortunately not even one good on 2915 occurrences, you can see yourself. Just apply the following filters:
Voltage: 32V
Current hold: 2A
"No records found"
I only found some records with a much lower "Voltage" value and even in this case they are too much oversized. This make me think that they are only suitable for other applications and that they just don't exist in the market.

Thanks

mark4444 · 12-27-2010, 15:39

Ok...seems to be that no one know if the original Iphone resettable fuses can be found or not.
For people reading this thread or that will read it in the future the answer can be considered incomplete and I'm not responsible for any damage caused from the alternative parts mentioned above because they are not guaranteed to be 100% compatible.
If someone else is interested to solve this mystery forever, this is the right moment, otherwise the discussion will end here.
ONLY CONCRETE ANSWERS, PLEASE!

Amylittlehands · 02-15-2011, 12:55

Quote:

Originally Posted by mark4444

Ok...seems to be that no one know if the original Iphone resettable fuses can be found or not.
For people reading this thread or that will read it in the future the answer can be considered incomplete and I'm not responsible for any damage caused from the alternative parts mentioned above because they are not guaranteed to be 100% compatible.
If someone else is interested to solve this mystery forever, this is the right moment, otherwise the discussion will end here.
ONLY CONCRETE ANSWERS, PLEASE!

I'm in a pickle too, my dad found the fuse was ****n on my 3G and tried to jump wire it for now until we find a new one but it still doesn't charge/turn on properly. Tried everything, changing battery, dock connector assembly, hard reset, soft reset, restore, DFU mode, recovery mode, nothing works.

We plug it into wall charger and it turns on (Makes no sound) it shows the apple logo for a few seconds then goes to iTunes recovery mode. When plugged into the computer it doesn't even do that anymore, I can get it into DFU mode but can't restore because there's no power so it shuts off before it even starts!

I'm at my whits end but determined to fix the bugger. Anyone have any suggestions? Is there another hidden fuse?!
Could anybody explain this to me too...
http://forum.gsmhosting.com/vbb/f456...4/#post6960835

12-07-2010, 19:05	#1 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Iphone 3G/3GS fuse part number Hi to all, I'm going to place an order from Digikey and I need to know the exact part number of the Iphone 3G and 3GS fuses. It could sound like a stupid question, but after hours and hours of researches on the internet and also inside this forum, seems to be that the spec are a real mistery. If there are also other fuses that I didn't found, please let me know (for a few dollars more I prefer to have them all). Many thanks Below is a picture showing the fuses:

12-21-2010, 17:32	#12 (permalink)
nidirex Insane Poster Join Date: Sep 2010 Posts: 67 Member: 1387214 Status: Offline Thanks Meter: 17	"resettable fuse" on DigiKey -> 2,943 occurrences.. not even one good? I think that's more reasonable to replace with resettable type, alternatively oversized fuse. Last edited by nidirex; 12-21-2010 at 17:38.

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12-09-2010, 18:21	#2 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Ok...191 visits and nobody seems to know the exact part number of the fuses. I found this datasheet from Littelfuse company. The fuses looks very similar to the one mounted on the Iphone 3GS. The appropriate size appear to be 0603, but there are too many versions and marking codes. Any help would be appreciated. For 3G I really have no idea where to look for. I have seen many post from people asking the specs of the fuses, but without replies. Seems to be that the common trick is to bridge the broken fuse with a wire. This trick is extremely dangerous because the circuit will have no more protection. Thanks

12-09-2010, 19:17	#3 (permalink)
Max_B No Life Poster Join Date: Oct 2002 Location: PARIS Posts: 1,565 Member: 16856 Status: Offline Sonork: 1582037 Thanks Meter: 441	Man, a fuse is a fuse. Just check if need 15A or 20A or the size, no matter even a DCT-4 fuse will fit. There are no electronic value difference. Don't bother yourself BR Max_B

12-09-2010, 21:07	#4 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Hi max and thanks for your reply. The physical size should not be a problem, but I think that the other parameters should be most similar possible to the original ones. I don't know if require 15A or 20A. May be it is better to wait someone that has already tested this replacement part and know the exact Digikey part number. I think that I'm not the only one interested to the specs. If we can close this thread with the exact Digikey part number I'm sure it will be helpful for all the community. Thanks

12-10-2010, 16:17	#5 (permalink)
Max_B No Life Poster Join Date: Oct 2002 Location: PARIS Posts: 1,565 Member: 16856 Status: Offline Sonork: 1582037 Thanks Meter: 441	M8 We don't work for NASA 15A 20A = same BR Max_B

12-13-2010, 20:51	#7 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	I'm not sure that 10-15A is the correct ampere range for Iphone 3G/3GS. All datasheets I found from several companies show fuses with a max rating of 5-6A, at least for fuses suggested for mobile phone applications. There are also higher values, but they are suggested for different applications and the physical size is much more bigger (the 3GS fuse is 2mm x 1.20mm and the 3G one is 1mm x 0.30mm approximately). There's a big difference between 5A and 15A and I think that the ampere rating is not the only one value to take in consideration. In addition to that...15A and 20A are different values and every device require its own value. Instead of giving generic replies suggesting random values that may cause device damage, the people reading this thread will have more benefits if someone experienced will post here the exact digikey part number already verified to be fully conformed to the original one. Looking the forum I realized that I'm not the only one that has already asked this simple info and people got only generic response and controversy as seem is happening also in this thread. Thanks

12-16-2010, 14:04	#8 (permalink)
Max_B No Life Poster Join Date: Oct 2002 Location: PARIS Posts: 1,565 Member: 16856 Status: Offline Sonork: 1582037 Thanks Meter: 441	Here is NOKIA BB5 fuses features : 5119039 SM FUSE F 20A 32V 0603 BR Max_B

12-19-2010, 20:27	#9 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Hi Max, the Nokia fuse is 2A and not 20A. Anyway if you think this fuse can also work on Iphone this is a good starting point. I suppose that 3G and 3GS specs are the same, except the physical size. Based on these specs the appropriate part number (Littelfuse Inc) seems to be 0435002 for 3G and 0467002 for 3GS. A small note about 3GS: the above fuse size is 0603, a little smaller of the original. The correct size is 0805 (2012 Metric), but unfortunately Littelfuse doesn't have this size available. An alternative could be MFU08052 from Vishay/Beyschlag Inc. The fuses mentioned here are standard ones while the original ones are resettable. I tried to find resettable ones, but it's very hard because the specs are totally different. Anyone experienced can confirm that the above parts are good for replacement? I want to avoid leaving readers with the doubt if they are good or wrong. Many thanks

12-19-2010, 20:31	#10 (permalink)
Max_B No Life Poster Join Date: Oct 2002 Location: PARIS Posts: 1,565 Member: 16856 Status: Offline Sonork: 1582037 Thanks Meter: 441	Yes, NOKIA fuse will fit perfectly. As Apple and NOKIA has both very similar power values, as all mobile phones have. Take ANY fuse from any phone should fit all good. BR Max_B

12-21-2010, 15:16	#11 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Max, thanks for your response. Before confirming that the above parts are correct... Part MFU08052 is the fuse with the same size as the original Iphone 3GS, but I see that voltage rated is only "32VDC" while parts "0435002" and "0467002" are "32VAC, 32VDC". Is 32VAC required? I can't find any fuse with both of the features and if this feature is required it will be better to buy the part "0467002", even if the size is a little different than original one. I would have preferred resettable fuses because the original ones have this feature, but seems to be that in the market there are no resettable fuses with the same specs. Thanks

12-21-2010, 23:22	#13 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Hi nidirex...yes, unfortunately not even one good on 2915 occurrences, you can see yourself. Just apply the following filters: Voltage: 32V Current hold: 2A "No records found" I only found some records with a much lower "Voltage" value and even in this case they are too much oversized. This make me think that they are only suitable for other applications and that they just don't exist in the market. Thanks

12-27-2010, 15:39	#14 (permalink)
mark4444 Junior Member Join Date: Dec 2010 Posts: 8 Member: 1462092 Status: Offline Thanks Meter: 2	Ok...seems to be that no one know if the original Iphone resettable fuses can be found or not. For people reading this thread or that will read it in the future the answer can be considered incomplete and I'm not responsible for any damage caused from the alternative parts mentioned above because they are not guaranteed to be 100% compatible. If someone else is interested to solve this mystery forever, this is the right moment, otherwise the discussion will end here. ONLY CONCRETE ANSWERS, PLEASE!