This IPC-DRM-18F Promotional Sample

1 20012215 Sanders Road Northbrook, IL 60062-6135 Telephone: FAX: e-mail: All rights reserved under both international and Pan-American copyrightconventions. Any copying, scanning or other reproductions of thesematerials without the prior written consent of the copyright holder isstrictly prohibited and constitutes infringement under the Copyright Lawof the United 1-580984-67-3 Resistor Color Code ChartThisIPC-DRM-18 FPromotional Sampleis not for reproduction andhas Low Resolution imagesto make download quickerTable of ContentsComponent Identification Desk Reference ManualTerminology:Introduction.

2 2 Through-Hole vs. Surface Mount ..3 Through-Hole Axial vs. Radial ..3 Surface Mount Leadless ..4 Surface Mount Leaded ..5 Component Packaging ..6 Identifying Components ..7 Component Reference Designator ..8 Common Class Letters ..9 Schematic Symbols ..10 Value and Tolerance ..10 Polarity .. Square Land/Pad ..12 Through-Hole Axial & Radial:Capacitor (Non-Polarized) ..13 Capacitor (Polarized) .. 14, 15 Variable Capacitor ..16 Crystal ..17 Diode ..18 Light-Emitting Diode.

3 19 Filter ..20 Fuses and Circuit Breakers ..21 Inductors and Coils ..24 Variable Resistor ..25 Voltage Regulator ..26 Thermistor ..27 Transistor ..28 Switches and Relays ..29 Through-Hole Hardware:Connector ..30 Header ..31 Jumper ..32 Socket .. 33 Through-Hole IC s:SIP ..34 DIP ..35IC Can ..36 PGA ..37 Surface Mount:CHIPs, MELFs & SOTs:Chip Components ..38 Tantalum Capacitors ..41 MELF ..42 SOT ..43 DPAK ..44 Surface Mount:The SOICF amily:SOIC ..45SO ..46 SOM ..47 SOL/SOW.

4 48 SOL-J ..49 VSOP ..50 SSOP ..51 QSOP ..52 TSOP ..53 Surface Mount:Large Scale ICs:LCC ..54 PLCC ..55 Flat Lead Package ..56 QFP (MQFP) ..57 PQFP ..58 BGA ..59 Reading Component Values:Axial Resistor Values ..60 Numbered Resistors ..604-Band Resistors ..615-Band Resistors ..61 Resistor Band Color Codes ..62 Capacitor Values ..63 Numbered Capacitors ..63 Capacitor Band Color Codes ..64 Inductor Band Color Codes .. 65 Component Identification Desk Reference Manual2 TerminologyIntroductionComponentsAn electronic component is any device that handles devices come in many different shapes and sizes.

5 Different components have different electrical functions and are used for a greatvariety of purposes. For example, some components may be used to slowelectricity, and others may be used to store ElectricityElectricity basically consists of voltage, measured in volts, and current, measured in amperes, or amps. Voltage is the electrical pressure,or force of electricity through a circuit. this is similar to the water pressure in a garden hose. Current is the amount of electricity that goesthrough the circuit. Active vs.

6 PassiveSome components are active - meaning they can amplify or interpret a signal. Active components include diodes, transistors and integrated circuits, also called ICs. Other components are passive - meaningthat they cannot change an electrical signal - except to reduce it in size ordelay it. Passive components include resistors, capacitors and vs. IntegratedWhen a component is packaged with only one or two functional elements, it is called a discrete component. An example of a discrete component is a resistor that performs the simple function of limiting theelectrical current that flows through it.

7 On the other hand, an integratedcircuit is a group of interconnected elements assembled into a single package that performs multiple functions. A well-known example of a complex IC is the microprocessor found in AssembliesWhen a group of components are placed together on a printed circuit board to perform some function, it s called an electronic board assemblies are created by attaching and soldering the components by hand, or by machine. Promotional SampleComponent Identification Desk Reference Manual4 TerminologyComponent Identification Desk Reference Manual3 Through-Hole vs.

8 Surface MountThrough-hole leads are rigid metal wires that stick out of the means there are no metal leads sticking out of the component body. These types of components are attached to a circuitboard using some type of metallized Leads Surface Mount - LeadlessSingle In-line Packagesor SIPs,are through-hole components thathave a row of leads in a single, straight & MELF suse terminations on oppositeends of the component s body. Castellations are half round metallized recesses in the side of a component that are filled with solder when connected to the circuit Grid Arrays, or BGAs,consist of rows of tiny balls of solderon the bottom of the component.

9 These solderballs are connected to matchingrows oflands onthe In-line Packagesor DIPs, are components that have two rowsof leads in parallel straight Grid Arraysor PGAs, are ICs that haveseveral rows of round pins extendingfrom the bottom of the component. Axial Leads = ArmsAxial leaded components have twoleads - with one lead extending fromeach side of the component, like components need to have theirleads bent so they can be insertedthrough the holes of a circuit are two primary types of components, the difference being how they are attached to the circuit sidesecondary sidecross-section of a through-hole solder jointcross-section of a surface mount solder jointThe other type is called surface mount.

10 Surface mount components aredesigned so they are placeddirectly onto lands that serveas mounting points on the surface of the group is called componentshave leads that are insertedthrough mounting holes in the circuit board. Radial Leads = LegsRadial leaded components have two or moreleads extending from the bottom of thecomponent, like SampleComponent Identification Desk Reference Manual6 TerminologyComponent Identification Desk Reference Manual5 TerminologyComponent PackagingLeaded surface mount components usually have one of five stylesof leads: gull wings, J-leads, L-leads, flat leads or Wing Lead: The gull winglead is a metal lead that bendsdown and away - similar to aseagull s.