Capacitors for beginning diyers build your own clone
#Capacitor code chart pdf series#
Over time, a series of standard capacitor values have evolved, just as with resistors and inductors. Cde type number identifies the basic capacitor design. Therefore, you will not see capacitor codes greater than 100?F. Tantalum capacitors usually have the capacitance value, maximum voltage rating. This video provides a clear guidance to read polyester film and ceramic capacitors printed with various codes.
#Capacitor code chart pdf code#
Ceramic disc capacitor code / label will normally consist of three numbers followed by a letter. F the standard values used for manufacturing capacitors are based on. Colour-coding for special types vdr not indicated in this table. V dq q-q charge capacitor by transferring bits of charge dqat a time from bottom to top plate. The capacitance code indicates actual capacitance in pf when capacitance value. 1064 The coded forms specified in iec 60062:2004 are used to indicate the rated ca- pacitance, capacitance tolerance and date of manufacture. If you’re unsure about an unusual marking’s meaning, if the capacitor doesn’t indicate a crucial piece of info (such as the breakdown voltage), or if you’re designing a new project and specifying capacitors, check the complete datasheet to be sure you have what you need to proceed safely.Tolerance codes: some capacitors have a tolerance code. With these guidelines, you should be able to quickly check the specs of any capacitor you are using. The capacitor tolerance chart below shows some common tolerance letter codes: Other optional data may include values such as:Ĭomponent manufacturers indicate tolerance with a letter code that refers to variances as small as +/- 0.5pF (indicated as A) up to -20/+80% (written as Z). If you come across these capacitors, try looking up a capacitor color code guide like the one here to decipher the codes for capacitance, breakdown voltage, and other values. Modern capacitors use the numerical markings we outlined above, but older capacitors employed a (now obsolete) color coding system. Also note the indications for the breakdown voltage and operating temperature.
Usually the line is white, but below you can see a capacitor with a black stripe marking the negative pole. If the capacitor bears a second value, it will typically be its breakdown voltage, expressed as a number followed by V, such as “25V” or “100V.”įinally, in the case of a capacitor with polarized leads, you’ll typically see a colored stripe on the negative side. You’ll need to know the difference between 134μF written directly or at 130,000μF written in an exponential coding.Īfter capacitance, the next most important spec is the breakdown voltage.
#Capacitor code chart pdf how to#
It’s important to know the general range of capacitance to understand how to read the numbers. You may see a number between 1 and 999 written directly on them. Note that tiny capacitors – under 1000μF – will indicate the capacitance directly in picofarads.