1. Passive Electronic Components
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Passive Electronic Components
Physical
Appearance
Slide 3 Slide 8 Slide 12
Units Ohm (Ω) Farad (F) Henry (H)
Other
Specifications
• Maximum Power
(Watt)
• Tolerance (%)
• Maximum
Voltage (Volt)
• Tolerance (%)
• Maximum
Current (A)
• Tolerance (%)
Code • Colour (Slide 5)
• Numeric Code and Direct Value (Slide 6)
Slide 10 Slide 14
Standard Values Slide 7 Slide 11
Typical Values Few ohms
to
tens of Mega-ohm
Few pico-Farad
to
tens of micro-Farad
Few nano-Henry
to
tens of milli-Henry
Resistor Capacitor Inductor

2. Passive Electronic Components
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Variable
Components
Slide 4 Slide 9 Slide 13
Symbol and
Notation
Relationship
with voltage and
current
(Ohm’s Law)
Equivalence of
Series/parallel
combination
Slide 15 Slide 15 Slide 15
Passive Electronic Components (Continued)
Resistor Capacitor Inductor
dt
dv
Ci =
dt
di
Lv =Riv =
Exploring More: http://training.ipc.org/demos/pdf/drm18g.pdf
and http://www.kpsec.freeuk.com/solder.htm

3. Passive Electronic Components
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Resistor Examples
http://www.wordiq.com/definition/Resistor
(Larger size often indicates higher power rating)
Through-hole Resistors
SMT Components
Source: Basic Electronics, Bernard Grob

4. Passive Electronic Components
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Resistor Examples
SMT Rectangular passive components (mostly resistors and capacitors):
01005 (0402 metric) : 0.016" × 0.008" (0.4 mm × 0.2 mm)
Typical power rating for resistors 1/32 Watt
0201 (0603 metric) : 0.024" × 0.012" (0.6 mm × 0.3 mm)
Typical power rating for resistors 1/20 Watt
0402 (1005 metric) : 0.04" × 0.02" (1.0 mm × 0.5 mm)
Typical power rating for resistors 1/16 Watt
0603 (1608 metric) : 0.063" × 0.031" (1.6 mm × 0.8 mm)
Typical power rating for resistors 1/16 Watt
0805 (2012 metric) : 0.08" × 0.05" (2.0 mm × 1.25 mm)
Typical power rating for resistors 1/10 or 1/8 Watt
1206 (3216 metric) : 0.126" × 0.063" (3.2 mm × 1.6 mm)
Typical power rating for resistors 1/4 Watt
1806 (4516 metric) : 0.177" × 0.063" (4.5 mm × 1.6 mm)
1812 (4532 metric) : 0.18" × 0.12" (4.5 mm × 3.2 mm)
Typical power rating for resistors 1/2 Watt
2010 (5025 metric) : 0.2" × 0.1" (5.0 mm × 2.5 mm)
2512 (6332 metric) : 0.25" × 0.12" (6.35 mm × 3.0 mm)
Ref: http://en.wikipedia.org/wiki/Surface-mount_technology

5. Passive Electronic Components
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Variable Resistor Examples

6. Passive Electronic Components
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Resistor Color Code
http://www.oilfield.de/download/techtabs/electron/ccode001.pdf
On line Tool:
http://www.samengstrom.com/nxl/3660/4_band_resistor_color_code_page.en.html
Note: A resistor with a single black-band is a zero ohm resistor

7. Passive Electronic Components
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Resistor Code
SIL (Single In-Line) network:
• The 4 and 7 are significant digits and the 3 is the decade, giving 47 x 1000 or 47 KΩ
• The letter after the numbers is the tolerance. The different representations are:
M=±20%, K=±10%, J=±5%, G=±2%, F=±1%.
• Detail Spec: http://www.vishay.com/docs/31509/csc.pdf
SMD (Surface Mount Device):
• The 1 and 0 are significant digits and the 3 is the decade, giving 10 x 1000 or 10 KΩ
Ref: http://www.lalena.com/audio/electronics/color/
Direct Value:
• Resistors with larger physical size are often printed the value directly on their body

8. Passive Electronic Components
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Standard Resistor Values
Electronic Industries Association (EIA) standard E24:
Standard E24 specifies resistors based on 5% tolerance (often
resistor of this category has 2% tolerance now a days due to
advancement of manufacturing techniques)
100 110 120 130 150 160 180 200
220 240 270 300 330 360 390 430
470 510 560 620 680 750 820 910
Standard Resistor values =
× 10M
Ohms
(Where M can be any integer, positive or negative)
For other standards: http://www.logwell.com/tech/components/resistor_values.html

9. Passive Electronic Components
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Capacitor Examples
http://www.wordiq.com/definition/Image:Condensators.JPG
Source: Basic Electronics, Bernard Grob
Through-Hole
SMT Chip
Capacitor
Network

10. Passive Electronic Components
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Variable Capacitor Examples

11. Passive Electronic Components
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Capacitor Alphanumeric Code
Formore:
http://www.twysted-pair.com/capidcds.htm
Ref:http://www.elexp.com/t_capaci.htm
Formore:CapacitorColorCode:
http://www.oilfield.de/download/techtabs/e
4R7 = 4.7 µF 4N7 = 4.7 nF 4P7 = 4.7 pF
or r
http://my.execpc.com/~endlr/markings.htm

12. Passive Electronic Components
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Standard Capacitor Values
Ref: http://www.aoc.nrao.edu/~pharden/ref/_caps.pdf

13. Passive Electronic Components
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Inductor Examples
http://www.wordiq.com/definition/Inductor
Wire-wound Inductors Wire-wound Inductors
Ferrite drum wire-wound
http://www.epcos.com/inf/30/db/emc_00/01
For More:
http://www.cambion.co.uk/Main/cat
alogue_inductive.htm
SMT

14. Passive Electronic Components
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Variable Inductor Example
http://www.standexelectronics.com/ser308a.htm
http://www.cambion.co.uk/Main/coilform-shielded.htm

15. Passive Electronic Components
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Inductor Code
Inductor Alphanumeric code (Similar to capacitor code):
http://www.elexp.com/t_induct.htm

16. Passive Electronic Components
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Series and Parallel Combinations