GSM-Forum - View Single Post - How to Identify Component Symbols on Nokia Schematic Diagram?

Ionel · 04-24-2010, 17:45

I what phone is zener diode ?
There are varistors , but i never seen a zener in a phone .
Varistors are like a resistor . And theyr role are to protect ic's from hight curent . Usualy are used in interfaces like keypad .

04-24-2010, 17:45	#4 (permalink)
Ionel No Life Poster Join Date: Sep 2004 Location: Romania Age: 42 Posts: 1,598 Member: 81232 Status: Offline Thanks Meter: 196	I what phone is zener diode ? There are varistors , but i never seen a zener in a phone . Varistors are like a resistor . And theyr role are to protect ic's from hight curent . Usualy are used in interfaces like keypad .