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Title: Απορία για πυκνωτή. Post by: Emfanever on May 20, 2009, 17:05:51 pm έχω ένα πυκνωτή που γράφει πάνω
0. 1 Κ 63 Πόσα F είναι? δε μπορώ να καταλάβω αυτό το 0. 1 τί είναι?.. δε θα έπρεπε να έχει τριψήφιο αριθμό πάνω? πχ 104 Title: Re: Απορία για πυκνωτή. Post by: fugiFOX on May 20, 2009, 17:26:36 pm 0.1μF
K=10% tolerance 63V Title: Re: Απορία για πυκνωτή. Post by: Emfanever on May 20, 2009, 17:30:43 pm ευχαριστώ....
πως ακριβώς το υπολόγισες αυτό? Title: Re: Απορία για πυκνωτή. Post by: ^^DaRk_HunTeR on May 20, 2009, 19:54:23 pm There are no international agreements in place to standardise capacitor identification. Most capacitors have printed values and are normally in microfarads or if the symbol is n, nanofarads. Working voltage is easily identified. Tolerances are upper case letters: M = 20%, K = 10%, J = 5%, H = 2.5% and F = ± 1pF.
0.22 microFarads with Tolerance of 10% and working voltage of 250 V capacitor (http://library.thinkquest.org/C006657/electronics/capacitor.htm) google is our friend first search then ask Title: Re: Απορία για πυκνωτή. Post by: Emfanever on May 20, 2009, 21:11:26 pm There are no international agreements in place to standardise capacitor identification. Most capacitors have printed values and are normally in microfarads or if the symbol is n, nanofarads. Working voltage is easily identified. Tolerances are upper case letters: M = 20%, K = 10%, J = 5%, H = 2.5% and F = ± 1pF. 0.22 microFarads with Tolerance of 10% and working voltage of 250 V capacitor (http://library.thinkquest.org/C006657/electronics/capacitor.htm) google is our friend first search then ask Προφανώς το πρώτο πράγμα που έκανα ήταν να ψάξω στο google και αυτό το site ήταν το πρώτο που βρήκα απλά το μάτι μου έπεσε εδώ A capacitor coded 474 K 63 means: The unit is picofarads and the third number (4) is a multiplier. So we have 47 followed by (4) zeros .That means 47 × 10000 pF which is equivalent to 470000 pF or 0.47 microfarads. K indicates 10% tolerance and 63 is the working voltage. και καθώς τα άλλα sites έγραφαν κάτι ανάλογο δεν έκανα τον κόπο να κοιτάξω λίγο παρακάτω Ceramic disk capacitors have many marking schemes. Capacitance, tolerance, working voltage and temperature coefficient may be found. Capacitance values are given as number without any identification as to units. (uF, nF, pF) Whole numbers usually indicate pF and decimal numbers such as 0.1 or 0.47 are microfarads. Odd looking numbers such as 473 is the previously explained system and means 47 nF. δεν έχω λόγο να απολογούμαι, αλλά εξυπνάδες του τύπου google is our friend να λείπουν. Title: Re: Απορία για πυκνωτή. Post by: Verminoz on May 20, 2009, 22:34:41 pm Ένα πρακτικό calculator
http://www.electronics2000.co.uk/calc/capacitor-code-calculator.php Title: Re: Απορία για πυκνωτή. Post by: Emfanever on May 20, 2009, 22:53:51 pm πολύ καλό πράγματι!
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