Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

resistors.......help me

Status
Not open for further replies.

yahaa

Member level 1
Joined
Oct 9, 2005
Messages
36
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,566
why do we get resistors in these peculiar values like 5.6k ,2.2k,4.2k etc and why not integral values?????:?:
 

mpig09

Full Member level 4
Joined
Aug 26, 2005
Messages
224
Helped
8
Reputation
16
Reaction score
2
Trophy points
1,298
Location
Taipei
Activity points
2,740
Hi :

If your design is optimum & the function of your circuit is right, that is ok !!

When you decide the resisters value, you need to care about the value relation of accuracy between each resister.


mpig
 

echo47

Advanced Member level 5
Joined
Apr 7, 2002
Messages
3,942
Helped
637
Reputation
1,272
Reaction score
88
Trophy points
1,328
Location
USA
Activity points
33,178
The ancient 20% resistance series starts at 1.0, and each subsequent value in the series is roughly 20% larger than the previous value (rounded off slightly). The 10% series includes new values halfway between the 20% values (rounded off slightly). Similar for the 5% series.

Here's another way of looking at it. Scroll about halfway down:
https://en.wikipedia.org/wiki/Preferred_number
 

    yahaa

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top