Continue to Site

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.

Register Log in

2V2 Zener diode characteristics?

Status
Not open for further replies.
C

cupoftea

Advanced Member level 5
Joined
Jun 13, 2021
Messages
2,609
Helped
54
Reputation
108
Reaction score
115
Trophy points
63
Activity points
13,682

Sort by date Sort by votes
A zener voltage of about 5.6V to 6.8V has the best voltage regulation, 2.2V is poor.
Below 5V a zener voltage has a negative temperature coefficient and above 7V the temp co is positive. The 2.2V zener is poor again.
 
Upvote 0 Downvote
The 2.2V zener diode is not made by many semiconductor companies. Its 2.2V at 20mA would be a resistor that is 2.2V/20mA= 110 ohms but the datasheet shows only a little better as a voltage regulator.
 
Upvote 0 Downvote
For a plain silicon diode I created my own V/I graph by testing a real component, then plotting the data. After much head-scratching I matched the curve to a crude equation for volts vs Amperes:

A = (V * 1.25)^20

(As an easy check: apply 0.8 V, get 1 Ampere.)

My equation is not based on the Shockley formula.

Insert different numbers to obtain the equation for an led, or 2.2V zener, or multiple diodes in series.
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top