Component Identification

Component Identification
Digital Electronics TM 1.1 Foundations and The Board Game Counter Component Identification Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Component Identification This presentation will… Introduce common components used in electronics. Define a resistor and present various resistor types and package styles. Demonstrate how to read a resistor’s nominal value and how to measure its actual value with a Digital Multi-Meter (DMM). Define a capacitor and present various capacitor types and package styles. Demonstrate how to read a capacitor’s nominal value. Introductory Slide / Overview of Presentation Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistors A resistor is an electronic component that resists the flow of electrical current. A resistor is typically used to control the amount of current that is flowing in a circuit. Resistance is measured in units of ohms () and named after George Ohm, whose law (Ohm’s Law) defines the fundamental relationship between voltage, current, and resistance. Definition of a Resistor. Project Lead The Way, Inc. Copyright 2009

Resistors: Types and Package Styles
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistors: Types and Package Styles Carbon Film Resistors 4 Bands Variable Resistors (potentiometer) Explain that there are two main types of resistors, fixed and variable. Fixed resistors are available in both thru-hole and surface mount technology. The variable resistor may also be called a potentiometer. The schematic symbols for each type are on the left. The arrow is used to denote a resistor that is variable. Carbon Film Resistors 5 Bands Surface Mount Resistors Project Lead The Way, Inc. Copyright 2009

Resistors: Size Comparison
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistors: Size Comparison Size comparison of common resistor package styles. Project Lead The Way, Inc. Copyright 2009

Determining A Resistor’s Value
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Determining A Resistor’s Value Color Code Measured Value Resistors are labeled with color bands that specify the resistor’s nominal value. The nominal value is the resistor’s face value. A digital multi-meter can be used to measure the resistor’s actual resistance value. Overview of two methods used to determine a resistor’s values. Project Lead The Way, Inc. Copyright 2009

How To Read A Resistor’s Value
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter How To Read A Resistor’s Value Resistor Color Code Resistor color code chart. Project Lead The Way, Inc. Copyright 2009

Resistor Value: Example #1
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistor Value: Example #1 Example: Determine the nominal value for the resistor shown. Pause the presentation and allow students to complete the example. The solution is on the next slide. Project Lead The Way, Inc. Copyright 2009

Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistor Value: Example #1 Example: Determine the nominal value for the resistor shown. Solution: 10 x 100  5% 1000  5% 1 K  5% This slide includes the solution to Resistor Value Example #1. If you print handouts, do not print this page. Project Lead The Way, Inc. Copyright 2009

Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistor Value: Example #2 Example: Determine the nominal value for the resistor shown. Pause the presentation and allow students to complete the example. The solution is on the next slide. Project Lead The Way, Inc. Copyright 2009

Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistor Value: Example #2 Example: Determine the nominal value for the resistor shown. Solution: 39 x 100K  5%  5% 3.9 M  5% This slide includes the solution to Resistor Value Example #2. If you print handouts, do not print this page. Project Lead The Way, Inc. Copyright 2009

Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistor Value: Example #3 Example: Determine the color bands for a 1.5 K  5% resistor. ? ? ? ? Pause the presentation and allow students to complete the example. The solution is on the next slide. Project Lead The Way, Inc. Copyright 2009

Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Resistor Value: Example #3 Example: Determine the color bands for a 1.5 K  5% resistor. ? ? ? ? Solution: 1.5 K  5% 1500  5% 15 x 100  5% 1: Brown 5: Green 100: Red 5%: Gold This slide includes the solution to Resistor Value Example #3. If you print handouts, do not print this page. Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Measured Value Using a Digital Multi-Meter (DMM) to measure resistance. Briefly pause the presentation and give a demonstration on how to use a DMM to measure resistance. Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitors A capacitor is an electronic component that can be used to store an electrical charge. Capacitors are often used in electronic circuits as temporary energy-storage devices. Capacitance is measured in units of farads (F) and named after Michael Faraday, a British chemist and physicist who contributed significantly to the study of electromagnetism. Definition of a Capacitor. Project Lead The Way, Inc. Copyright 2009

Capacitors: Types and Package Styles
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitors: Types and Package Styles Mylar / Tantalum Monolithic Ceramic Ceramic Disc Capacitors Many other types of capacitors exist. Their names come from the material that makes up the dielectric. The ratings for these capacitors are usually labeled on the device. Electrolytic Capacitors Electrolytic Capacitors Radial Lead Axial Lead Project Lead The Way, Inc. Copyright 2009

Capacitors: Types and Package Styles
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitors: Types and Package Styles Surface Mount Tantalum Capacitors Size Comparison Size comparison of common capacitor package styles. Surface Mount Ceramic Capacitors Project Lead The Way, Inc. Copyright 2009

How To Read A Capacitor’s Value
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter How To Read A Capacitor’s Value Electrolytic Capacitors 10 F Reading capacitance values of Electrolytic Capacitors. 0.47 F Project Lead The Way, Inc. Copyright 2009

How To Read A Capacitor’s Value
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter How To Read A Capacitor’s Value Disc Capacitors Code Tolerance A ±0.05% B ±0.1% C ±0.25% D ±0.5% F ±1% G ±2% J ±5% K ±10% M or NONE ±20% N ±30% Q −10%, +30% S −20%, +50% T −10%, +50% Z −20%, +80% 4 7 2 K Overview of how a disc capacitor is labeled. First Digit First Figure Second Digit Second Figure Third Digit # of Zeros Fourth Digit Tolerance 4 7 00 K 4700 pF 10% Note: Units on Disc Capacitors are always in pico-farads Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitor: Example #1 Example: Determine the nominal value for the capacitor shown. Code Tolerance A ±0.05% B ±0.1% C ±0.25% D ±0.5% F ±1% G ±2% J ±5% K ±10% M or NONE ±20% N ±30% Q −10%, +30% S −20%, +50% T −10%, +50% Z −20%, +80% Pause the presentation and allow students to complete the example. The solution is on the next slide. Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitor: Example #1 Example: Determine the nominal value for the capacitor shown. Code Tolerance A ±0.05% B ±0.1% C ±0.25% D ±0.5% F ±1% G ±2% J ±5% K ±10% M or NONE ±20% N ±30% Q −10%, +30% S −20%, +50% T −10%, +50% Z −20%, +80% Solution: 330 pF 5% This slide includes the solution to Capacitor Value Example #1. If you print handouts, do not print this page. Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitor: Example #2 Example: Determine the nominal value for the capacitor shown. Code Tolerance A ±0.05% B ±0.1% C ±0.25% D ±0.5% F ±1% G ±2% J ±5% K ±10% M or NONE ±20% N ±30% Q −10%, +30% S −20%, +50% T −10%, +50% Z −20%, +80% Pause the presentation and allow students to complete the example. The solution is on the next slide. Project Lead The Way, Inc. Copyright 2009

Digital Electronics TM 1.1 Foundations and The Board Game Counter Capacitor: Example #2 Example: Determine the nominal value for the capacitor shown. Code Tolerance A ±0.05% B ±0.1% C ±0.25% D ±0.5% F ±1% G ±2% J ±5% K ±10% M or NONE ±20% N ±30% Q −10%, +30% S −20%, +50% T −10%, +50% Z −20%, +80% Solution: 10000 pF 10% This slide includes the solution to Capacitor Value Example #2. If you print handouts, do not print this page. Project Lead The Way, Inc. Copyright 2009

Common Electronic Components Displays
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Common Electronic Components Displays Seven Segment Display Light Emitting Diodes (LED) 1 2 Note the difference in the lead lengths on the LEDs. Explain that lead length differences this will become important in later activities. Project Lead The Way, Inc. Copyright 2009

LED A picture of an LED The short side goes towards the negative side of the battery LED schematic symbol. The arrows stand for light. 1 is the negative side.

Common Electronic Components Integrated Circuits (IC’s) & Sockets
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Common Electronic Components Integrated Circuits (IC’s) & Sockets 8 Pin Solder Socket 14 Pin Solder Socket 14 Pin DIP IC 8 Pin DIP IC 40 Pin DIP 14 PIN SOIC 8 Pin SOIC 44 Pin PLCC 3 6 7 1 4 8 Note that the because they can be used in proto-boards (bread boards), the vast majority of the components that will be used in the course will be DIP packages. 2 5 DIP – Dual Inline Package SOIC – Small Outline Integrated Circuit PLCC - Plastic Leaded Chip Carrier Project Lead The Way, Inc. Copyright 2009

Common Electronic Components Misc Components
Component Identification Digital Electronics TM 1.1 Foundations and The Board Game Counter Common Electronic Components Misc Components Fuses Transistor Diodes Dime  2 3 1 4 Project Lead The Way, Inc. Copyright 2009

Transistor A transistor is an electronic switch.
By turning a small input current into a large output current, the transistor acts like an amplifier. But it also acts like a switch at the same time. When there is no current to the base, little or no current flows between the collector and the emitter. Turn on the base current and a big current flows. Collector NPN 2N3904 Base Emitter The flat side faces up collector base emitter

Diode A diode only allows electricity to flow in one direction.

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