iPhone 3G... resistors? Condenser? - GSM-Forum

nidirex · 12-04-2010, 17:29

Hy, I've a question for iphone-tweakers.. what are these components?

Uploaded with ImageShack.us

resistors? Condersers? I don't believe inductors, but... zero-ohm resistors?

Thanks in advance!

Haltec · 12-04-2010, 17:40

Imho:

EMI-ESD Filter Chip Varistor

But it would be great, if someone more expirienced, share some "light" here...

BR

Haltec

nidirex · 12-04-2010, 17:42

Quote:

Originally Posted by Haltec

Imho:

EMI-ESD Filter Chip Varistor

BR

Haltec

What method I can use to be sure? I can desold one of this..

Haltec · 12-04-2010, 17:51

Don't know how to test it, but why do you need it tested anyway?

BR

nidirex · 12-04-2010, 18:52

Quote:

Originally Posted by Haltec

Don't know how to test it, but why do you need it tested anyway?

BR

The component is missing...

nidirex · 12-04-2010, 22:09

If is a varistor, what clamping voltage? 6V? 15V? More?

jseraphim · 12-05-2010, 07:45

I have a phone with all 4 of these parts missing and everything seems to work. They must be protection devices.

artusb · 12-23-2010, 20:58

you can remove it all - not important

it's ESD protect

ESD Procetion

mtle5554 · 12-25-2010, 11:20

Quote:

Originally Posted by artusb

you can remove it all - not important

it's ESD protect

ESD Procetion

You're right, once i removed first top one, nothing change. BUT the strange is once i verified this one on 2 3gs board: 1 had 2 volts, 1 had no volt??, both work well

artusb · 12-27-2010, 00:46

all this part's goes to the ground, it is onlu ESD protection

12-04-2010, 17:29	#1 (permalink)
nidirex Insane Poster Join Date: Sep 2010 Posts: 67 Member: 1387214 Status: Offline Thanks Meter: 17	iPhone 3G... resistors? Condenser? Hy, I've a question for iphone-tweakers.. what are these components? Uploaded with ImageShack.us resistors? Condersers? I don't believe inductors, but... zero-ohm resistors? Thanks in advance!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ALL NEW MOBILES FROM 3g	yeldar	Off Topic Zone	1	05-26-2003 09:15
3G has arrived!	Yolly Zubrick	GSM Mobile Links	0	09-27-2002 15:35
Mitsubishi Trium.....Signal Resistor	iqballk	Hardware Repair by brands	0	09-05-2002 13:14
Bridging Resistors	PhoeniX	Nokia Hardware & Hardware Repair	3	04-14-2002 16:36
Resistor Bridging	PhoeniX	Hardware Equipments for GSM	0	04-13-2002 14:47

12-04-2010, 17:40	#2 (permalink)
Haltec No Life Poster Join Date: Mar 2009 Location: Europe Wienna Posts: 1,269 Member: 984046 Status: Offline Thanks Meter: 255	Imho: EMI-ESD Filter Chip Varistor But it would be great, if someone more expirienced, share some "light" here... BR Haltec

12-04-2010, 17:51	#4 (permalink)
Haltec No Life Poster Join Date: Mar 2009 Location: Europe Wienna Posts: 1,269 Member: 984046 Status: Offline Thanks Meter: 255	Don't know how to test it, but why do you need it tested anyway? BR

12-04-2010, 22:09	#6 (permalink)
nidirex Insane Poster Join Date: Sep 2010 Posts: 67 Member: 1387214 Status: Offline Thanks Meter: 17	If is a varistor, what clamping voltage? 6V? 15V? More?

12-05-2010, 07:45	#7 (permalink)
jseraphim Crazy Poster Join Date: Jun 2010 Posts: 58 Member: 1318122 Status: Offline Thanks Meter: 37	I have a phone with all 4 of these parts missing and everything seems to work. They must be protection devices.

12-23-2010, 20:58	#8 (permalink)
artusb Freak Poster Join Date: Apr 2008 Location: Cracow Posts: 256 Member: 739941 Status: Offline Thanks Meter: 111	you can remove it all - not important it's ESD protect ESD Procetion

12-27-2010, 00:46	#10 (permalink)
artusb Freak Poster Join Date: Apr 2008 Location: Cracow Posts: 256 Member: 739941 Status: Offline Thanks Meter: 111	all this part's goes to the ground, it is onlu ESD protection