Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Copper Mountain Technologies (VNA) - RF Cafe

Temwell Filters

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products

Resistor and Capacitor Color Code Charts
March 1955 Popular Electronics

March 1955 Popular Electronics

March 1955 Popular Electronics Cover - RF CafeTable of Contents

Wax nostalgic about and learn from the history of early electronics. See articles from Popular Electronics, published October 1954 - April 1985. All copyrights are hereby acknowledged.

articles from Popular Electronics.

As time marches on and electronics components get smaller and smaller, there is no just no room to apply color code markings for values, but in a lot of instances there is not even room to apply a laser alphanumerical marking (at least not one large enough to be seen with an unaided eye). This goes for common passive components like capacitors, inductors, and resistors as well as for integrated circuits, RF couplers and power dividers, diodes, and transformers. Open your Wi-Fi router and try to find a useful component designation. Only the largest parts will have anything you can look up on the Internet. There are ways to hunt down identification for some of the parts, but at least for R's, L's, and C's, the only way to discover a value without the assistance of a schematic is to measure it. If you look at older electronics equipment, you will immediately notice color stripes and/or dots on many components. The tables below, from a 1955 issue of Popular Electronics magazine, will help you decipher the meanings for component value, tolerance, temperature coefficients, etc., as applicable.

Capacitor Color Code Chart

Capacitor Color Code Chart

Capacitance is given in µµfd. Colors have the same values as on resistors, except as indicated in tables. Colors (A) and (B) are for first two digits; (e) is for multiplier. (D) is for tolerance, (E) and (F) give voltage rating in hundreds of volts; (E) is used only for ratings less than 1000 volts. (E) and (F) for first two digits of ratings 1000 volts or more. Values of colors for (E) and (F) are same as in resistance values. (G) is class or characteristic of capacitor. (H), (I), and (J) give temperature coefficient. (G), (H), (I), and (J) are not listed in the tables, since this information is seldom needed by the average home builder. 

Capacitor Color Code Chart - RF Cafe

Related Pages on RF Cafe

- Capacitors & Capacitance Calculations

- Capacitor Color Codes

- Capacitance Conversions

- Capacitor Dielectrics

- Standard Capacitor Values

- Capacitor Vendors

- The Noble Art of De-Coupling

Resistor Color Code Chart

The ohmic value of a resistor can be deter-mined by means of the color code. There are two standard methods of indicating this value. In Fig. A. the body (A) and end (B) indicate the first and second digits of the value while the dot (C) indicates the multiplier to be used. The tolerance of the unit is indicated by the end color (D). For example. if the body (A) is green the number is 5; if the end (B) is grey the second number is 8. If the dot (C) is red the multiplier is 100 or two zeros should be added. The resistor is then a 5800 ohm unit. If the end (D) has no color. the tolerance is ±20%. In Fig. B. the first two stripes indicate the first two digits; the third stripe the multiplier: the fourth stripe the tolerance. Thus, if stripe (A) is green, (B) is grey, (e) is red, and (D) is silver. the resistor is a 5800 ohm, ± 10% unit.

Resistor Color Code Chart - RF Cafe

 

 

Posted January 11/2023
(updated from original post on 4/21/2013)

Innovative Power Products Couplers

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com

My Daughter's Website: EquineKingdom

Windfreak Technologies Frequency Synthesizers - RF Cafe

KR Electronics (RF Filters) - RF Cafe

PCB Directory (Manufacturers)