I'm pretty new to electronics but am having a blast learning pics and stuff.
So far I've only used picaxe project boards which come with all the bits I need but I'd like to expand a bit and am looking at buying a "multipack" of resistors to have all the right bits for whatever I might do.
this is where I get stuck......
rapid electronics for instance have a number of different "kits" available but I don't understand the terminology:
Option 1: http://www.rapidonline.com/productinfo.aspx?tier1=Electronic+Components&tier2=Resistors+&+Potentiometer&tier3=Metal+Film+Resistors&tier4=MR25+Metal+film+resistor+kit&moduleno=65199#techspec
A pack containing a total of 1000 0.25W 1% 50ppm precision metal film resistors
Option 2:
http://www.rapidonline.com/productinfo.aspx?tier1=Electronic+Components&tier2=Resistors+&+Potentiometer&tier3=Carbon+Film+Resistors&tier4=CR25+Carbon+film+resistor+kit&moduleno=28374#techspec
A pack containing a total of 1000 0.25W 5% carbon film resistors
Option 3:
http://www.rapidonline.com/productinfo.aspx?tier1=Electronic+Components&tier2=Resistors+&+Potentiometer&tier3=Carbon+Film+Resistors&tier4=CR50+Carbon+film+resistor+kit&moduleno=65195
A pack containing a total of 1000 0.5W 5% carbon film resistors.
so my questions.....
- what does the 0.5w or 0.25w refer to?
- what does the % mean?
- whats the difference between metal and carbon film resistors?
- in summary, which, if any would be most useful to me as a pack for various pic based projects??
thanks so much for your help
So far I've only used picaxe project boards which come with all the bits I need but I'd like to expand a bit and am looking at buying a "multipack" of resistors to have all the right bits for whatever I might do.
this is where I get stuck......
rapid electronics for instance have a number of different "kits" available but I don't understand the terminology:
Option 1: http://www.rapidonline.com/productinfo.aspx?tier1=Electronic+Components&tier2=Resistors+&+Potentiometer&tier3=Metal+Film+Resistors&tier4=MR25+Metal+film+resistor+kit&moduleno=65199#techspec
A pack containing a total of 1000 0.25W 1% 50ppm precision metal film resistors
Option 2:
http://www.rapidonline.com/productinfo.aspx?tier1=Electronic+Components&tier2=Resistors+&+Potentiometer&tier3=Carbon+Film+Resistors&tier4=CR25+Carbon+film+resistor+kit&moduleno=28374#techspec
A pack containing a total of 1000 0.25W 5% carbon film resistors
Option 3:
http://www.rapidonline.com/productinfo.aspx?tier1=Electronic+Components&tier2=Resistors+&+Potentiometer&tier3=Carbon+Film+Resistors&tier4=CR50+Carbon+film+resistor+kit&moduleno=65195
A pack containing a total of 1000 0.5W 5% carbon film resistors.
so my questions.....
- what does the 0.5w or 0.25w refer to?
- what does the % mean?
- whats the difference between metal and carbon film resistors?
- in summary, which, if any would be most useful to me as a pack for various pic based projects??
thanks so much for your help