Activity 1.1.5B Component Identification: Analog
Introduction
In the field of electronics, there are an endless number of different types of components. The
ability to identify these components and to understand how they are labeled is an essential
skill for anyone working in the field.
In this activity you will identify and determine the nominal values for a series of resistors and
capacitors. We will concentrate on resistors and capacitors because they are part of virtually
every electronics design ever made.
Equipment
●
●
●
●
Scientific calculator
Digital multimeter (DMM)
Resistors
Capacitors
Procedure
1. Using the attached resistor color code, determine the nominal resistance value for the
following components. Express your answers using the proper SI units and prefix.
(Yellow / Violet / Red / Gold)
a) Ra = 4.7k + 5%
(Green / Blue / Yellow / Gold)
b) Rb = 560k + 5%
© 2014 Project Lead The Way, Inc.
Digital Electronics Activity 1.1.4 Component Identification – Page 1
(Red / Violet / Brown / Gold)
c) Rc = 270 k + 5%
(Brown / Red / Green / Gold)
d) Rd = 1.2m + 5%
(Blue / Gray / Orange / Gold)
e) Re = 68k + 5%
2. Using the Resistor Color Code Diagram, record each resistors nominal value and
tolerance range. Next, use a digital multi-meter (DMM) to measure and record the
actual resistance value of each resistor. Finally, indicate if the measured value is
within acceptable tolerance.
Tolerance Range
Resistor
Colors
1
Nominal
Value
Minimum
Accepted
Value
Maximum
Accepted
Value
red gray orange gold
28k 5%
26.6k
29.4k
2
red red red gold
2.2k 5%
2.09k
2.31k
3
red brown black silver
21 10%
2.1
23.1
4
black red black gold
2 5%
1.9
2.1
5
black orange brown
gold
30 5%
28.5
31.5
Measured
Value
Meets
Tolerance?
© 2014 Project Lead The Way, Inc.
Digital Electronics Activity 1.1.4 Component Identification – Page 2
6
blue gray orange gold
68K 5%
64.6k
71.4k
7
orange brown black
silver
31 10%
27.9
34.1
8
black black black
0
0
0
9
yellow brown blue
41M
41
41
10
orange orange brown
gold
330 5%
313.5
346.5
3. Use the attached Disc Capacitor Label Diagram to determine the nominal capacitance
value for the following components.
a) Ca = ______.047 μF
– 20% +80%_______
b) Cb =______________470 μF ___+___20%________
© 2014 Project Lead The Way, Inc.
Digital Electronics Activity 1.1.4 Component Identification – Page 3
c) Cc = ___.220 μF
+_______10%__________________
d) Cd = _____.1 μF
+______20%_________________
e) Ce = _________.001 μF
+_20%
© 2014 Project Lead The Way, Inc.
Digital Electronics Activity 1.1.4 Component Identification – Page 4
Resistor Color Code Diagram
Disc Capacitor Label Diagram
© 2014 Project Lead The Way, Inc.
Digital Electronics Activity 1.1.4 Component Identification – Page 5