The document discusses various electronic components and their schematic symbols. It provides images and descriptions of common components like resistors, capacitors, diodes, transistors, switches, lights, coils, relays, transformers, meters, logic gates, connectors and voltage sources. Examples of components include resistors, capacitors, NPN and PNP transistors, diodes, LEDs, switches and integrated circuits.

1. Schematic Symbols and Components

2. Schematic Symbols Objectives Recognize Schematic Symbols Be able to draw the schematic symbols Recognize the actual components Understand the basic function of each component

3. Resistors Resistor Potentiometer Photoresistor

4. Capacitors: Basic Function: Stores electrical charge, used to filter low frequencies Electrolytic Mylar (chicklet) Disc Variable capacitor – Used in tuning circuits (tuning knob on a radio).

5. Diodes (one-way check valve for electricity) Diode Zener Diode Photo-Diode Light Emitting Diode

6. Transistors: switch, oscillator, amplifier NPN Transistor PNP Transistor UJT Transistor Photo Transistor

7. Switches Normally Open Normally Closed SPST (Single Pole, Single Throw) SPDT (Single Pole, Double Throw)

8. Lights Incandescent Neon Florescent

9. Electromagnetic Devices Coil Speaker Microphone

10. Electromagnetic Devices Relay (Electromagnetically controlled switch) Transformer Antenna Motor

11. Thyristors Silicon Controlled Rectifiers (Gated Diode) TRIAC (used to control AC circuits / like 2 SCR’s back to back)

12. Meters Digital Multimeters Ohmmeters Ammeters Voltmeters

13. Digital Logic Gates AND NAND OR NOR XOR Inverter (NOT)

14. General Fuse Wire Crossing not connected Wires Crossing & Connected Buzzer

15. General Connector Terminal Crystal Voltage Regulator Operational Amplifier

16. Voltage Sources Battery AC Voltage Source

17. Voltage Sources / Grounds Earth Ground Chassis Ground AC Plug AC Outlet

18. Sources for pictures Capacitor: http://images.google.com/imgres?imgurl=http://blogs.courant.com/colin_mcenroe_to_wit/capacitor.jpg&imgrefurl=http://blogs.courant.com/colin_mcenroe_to_wit/2009/02/ok-ok-tales-of-geets.html&usg=__2F74WQM_txJ3Ue6FuDfV-DoUO18=&h=564&w=1081&sz=147&hl=en&start=1&um=1&tbnid=yaoeg4Bbu7btxM:&tbnh=78&tbnw=150&prev=/images%3Fq%3Dcapacitor%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1 NPN Transistor: http://images.google.com/imgres?imgurl=http://www.solarbotics.com/assets/images/tr2222/tr2222_pl.jpg&imgrefurl=http://www.solarbotics.com/products/tr2222/&usg=__HCmGR5I7ru69QrUnQRgtwtjY-X4=&h=450&w=600&sz=23&hl=en&start=3&um=1&tbnid=8ho2yU-_u_gxlM:&tbnh=101&tbnw=135&prev=/images%3Fq%3Dnpn%2Btransistor%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1 NPN transistor schematic: http://images.google.com/imgres?imgurl=http://www.weidemyr.com/com/electro_transistorsymbol-f.png&imgrefurl=http://www.weidemyr.com/com/electro.shtml&usg=__21jIsCFUOo4sAvbx2PKE94QHJ9E=&h=500&w=468&sz=12&hl=en&start=6&um=1&tbnid=VDfCRle8pJxkUM:&tbnh=130&tbnw=122&prev=/images%3Fq%3Dnpn%2Btransistor%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1 Voltage regulator: http://images.google.com/imgres?imgurl=http://www.electronicrepairguide.com/7808%2520voltage%2520regulator.jpg&imgrefurl=http://www.electronicrepairguide.com/restore-crt.html&usg=__8bRR7QtFOPxrgwD-wZwcHu8wopA=&h=331&w=311&sz=17&hl=en&start=3&um=1&tbnid=EGC6FDfPgLccDM:&tbnh=119&tbnw=112&prev=/images%3Fq%3Dvoltage%2Bregulator%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1

19. Sources PNP transistor schematic (also has another, more detailed version of the NPN schematic: http://images.google.com/imgres?imgurl=http://www.abcofelectronics.com/p-n-p-symbol.gif&imgrefurl=http://www.abcofelectronics.com/integratedcircuits.htm&usg=__MdxQpmAWaItgW9JT6VMLNywhP0A=&h=289&w=405&sz=8&hl=en&start=6&um=1&tbnid=C0ohQY_zsjgWwM:&tbnh=88&tbnw=124&prev=/images%3Fq%3DPNP%2Btransistor%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1 PNP transistor: http://images.google.com/imgres?imgurl=http://www.c-stamp.com/images/CS560000.jpg&imgrefurl=http://www.c-stamp.com/components.htm&usg=__Hq_yfnl6KIOcvDi2drVGKwbWbB0=&h=169&w=256&sz=6&hl=en&start=21&um=1&tbnid=LBO_DsAspRH3IM:&tbnh=73&tbnw=111&prev=/images%3Fq%3DPNP%2Btransistor%2Bpicture%26ndsp%3D18%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN%26start%3D18%26um%3D1 PNP transistor 2: http://images.google.com/imgres?imgurl=http://www.pagermotors.com/index_files/Products/Electronic_Components/3906_Transistor/3906_Transistor_(L).gif&imgrefurl=http://www.pagermotors.com/index_files/Products/Electronic_Components/3906_Transistor/3906_Transistor.htm&usg=__L1sTWwBMlojaDxeD10ArgSHfBmc=&h=377&w=395&sz=28&hl=en&start=26&um=1&tbnid=XjMupWmI5vj-5M:&tbnh=118&tbnw=124&prev=/images%3Fq%3DPNP%2Btransistor%2Bpicture%26ndsp%3D18%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN%26start%3D18%26um%3D1 UJT Transistor: http://www.globalspec.com/FeaturedProducts/Detail/Unijunction_Transistors_UJTs_from_AMS/93313/0?deframe=1 Photo Transistor: http://rocky.digikey.com/weblib/Optek/Web%20photos/OP505x,%20506x.jpg Diode: http://images.google.com/imgres?imgurl=http://mustangsva.co.uk/wp-content/uploads/2009/04/diode.gif&imgrefurl=http://mustangsva.co.uk/2009/04/02/back-emf-protection-diodes/&usg=__aLQfjZ6rhkadtrrtGyiJ7S3fK2o=&h=296&w=300&sz=9&hl=en&start=7&um=1&tbnid=x_PEPyVPTY1qDM:&tbnh=114&tbnw=116&prev=/images%3Fq%3Ddiode%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3DwkF%26sa%3DG%26um%3D1 Zener Diode: http://images.google.com/imgres?imgurl=http://shop.4atraders.com/shop/images/Zener%2520Diode.jpg&imgrefurl=http://shop.4atraders.com/shop/products_new.php&usg=__4r-VfGLq6GKSEiPQKJZ141BOfd4=&h=360&w=360&sz=52&hl=en&start=1&um=1&tbnid=JPMG9fZjVWyACM:&tbnh=121&tbnw=121&prev=/images%3Fq%3Dzener%2Bdiode%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3D86u%26sa%3DG%26um%3D1 Photo Diode: http://www.mi-lasers.com/stock/ToshibaTOLD9231_300.jpg Photo Diode 2: http://rocky.digikey.com/weblib/Panasonic/Web%20Photos/New%20Photos/PNZ300F.jpg

20. Sources LED: http://images.google.com/imgres?imgurl=http://technabob.com/blog/wp-content/uploads/2007/10/led_of_led_1.jpg&imgrefurl=http://technabob.com/blog/2007/10/07/giant-led-lamps-made-from-leds/&usg=__Q__BApCDgeOisXs7Ocmx4xNRp4A=&h=382&w=520&sz=25&hl=en&start=2&um=1&tbnid=6QsDcrRDWc4G9M:&tbnh=96&tbnw=131&prev=/images%3Fq%3Dlight%2Bemitting%2Bdiode%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3DWUa%26sa%3DG%26um%3D1 LED Schematic: http://images.google.com/imgres?imgurl=http://www.aprosystems.com/image/led_e.gif&imgrefurl=http://www.aprosystems.com/about_led_e.htm&usg=__Mj1ou4ZgzgFoEoza4SSy557R4Sw=&h=444&w=353&sz=32&hl=en&start=23&um=1&tbnid=_HBSss17tBjWoM:&tbnh=127&tbnw=101&prev=/images%3Fq%3Dlight%2Bemitting%2Bdiode%26ndsp%3D18%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3D5Va%26sa%3DN%26start%3D18%26um%3D1 Switches schematic: http://images.google.com/imgres?imgurl=http://www.xmission.com/~daina/images/switches.gif&imgrefurl=http://www.xmission.com/~daina/tips/pub/tip0222.html&usg=__-AE-7XrhE0uieksNNZlPBbp_D2Y=&h=171&w=444&sz=2&hl=en&start=3&um=1&tbnid=ad9PMviOUwCMYM:&tbnh=49&tbnw=127&prev=/images%3Fq%3Dnormally%2Bopen%2Bswitch%26ndsp%3D18%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3D2Wa%26sa%3DG%26um%3D1 Normally open switch: http://images.google.com/imgres?imgurl=http://www.bcae1.com/images/gifs/switpush.gif&imgrefurl=http://www.bcae1.com/switches.htm&usg=__SKDS4Lq_a7SpvbKyLEpBjNHTh30=&h=308&w=347&sz=4&hl=en&start=5&um=1&tbnid=YdtkOXT2IX1RaM:&tbnh=107&tbnw=120&prev=/images%3Fq%3Dnormally%2Bopen%2Bswitch%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1 Normally closed switch: http://images.google.com/imgres?imgurl=https://www.dsuban.com/secure/images/products/2752.bmp&imgrefurl=http://www.dsuban.com/Kit-Masters--Fan-Clutch-Experts-v18/&usg=__B_jnzfd7KUYnPFjD0pqRKrOO-xU=&h=445&w=427&sz=559&hl=en&start=3&um=1&tbnid=MjW6N9j6dAol8M:&tbnh=127&tbnw=122&prev=/images%3Fq%3Dnormally%2Bclosed%2Bswitch%2Bexample%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1 SPST schematic: http://images.google.com/imgres?imgurl=http://www.colehersee.com/images/resource/SPST.GIF&imgrefurl=http://www.colehersee.com/04resource/dict_s.htm&usg=__dFHwTuWreldqW91WdO2aW_3jQc4=&h=495&w=657&sz=18&hl=en&start=1&um=1&tbnid=zJlagNTbsv3xPM:&tbnh=104&tbnw=138&prev=/images%3Fq%3DSPST%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1