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05-21-2014, 16:37 | #1 (permalink) |
No Life Poster Join Date: Nov 2012 Location: Kerala
Posts: 517
Member: 1834782 Status: Offline Sonork: 100.1623166 Thanks Meter: 562 | SMD Resistor Coding SMD Resistor Coding All SM resistors conform to a 3-digit or 4-digit code. But there are a number of codes, according to the tolerance of the resistor. It's getting very complicated. Here is a basic 3-digit SM resistor: The first two digits represent the two digits in the answer. The third digit represents the number of zero's you must place after the two digits. The answer will be OHMS. For example GIVEN: 334 is written 33 0 000. This is written 330,000 ohms. The comma can be replaced by the letter "k". The final answer is: 330k. 222 = 22 00 = 2,200 = 2k2 473 = 47 000 = 47,000 = 47k 105 = 10 00000 = 1,000,000 = 1M = one million ohms There is one trick you have to remember. Resistances less than 100 ohms are written: 100, 220, 470. These are 10 and NO zero's = 10 ohms = 10R or 22 and no zero's = 22R or 47 and no zero's = 47R. Sometimes the resistor is marked: 10, 22 and 47 to prevent a mistake. TAKE-NOTE: R = ohms k = kilo ohms = 1,000 ohms M = Meg = 1,000,000 ohms The 3 letters (R, k and M) are put in place of the decimal point. This way you cannot make a mistake when reading a value of resistance. for 3 digit code mao ni xa ang mga common number based on my experience: 0R1 = 0.1 ohm R22 = 0.22 ohm R33 = 0.33 ohm R47 = 0.47 ohm R68 = 0.68 ohm R82 = 0.82 ohm 1R0 = 1R or 1 ohm 1R2 = 1R2 or 1.2 ohm 2R2 = 2R2 or 2.2 ohm 3R3 = 3.3 ohm 4R7 = 4.7 ohm 5R6 = 5.6 ohm 6R8 = 6.8 ohm 8R2 = 8.2 ohm 100 = 10R or 10 ohm 120 = 12R or 12 ohm 150 = 15R or 15 ohm 180 = 18 ohm 220 = 22 ohm 270 = 27 ohm 330 = 33 ohm 390 = 39 ohm 470 = 47 ohm 560 = 56 ohm 680 = 68 ohm 820 = 82 ohm 101 = 100 ohm 121 = 120 ohm 151 = 150 ohm 181 = 180 ohm 221 = 220 ohm 271 = 270 ohm 331 = 330 ohm 391 = 390 ohm 471 = 470 ohm 561 = 560 ohm 681 = 680 ohm 821 = 820 ohm 102 = 1 kilo ohm 122 = 1.2 kilo ohm 152 = 1.5 kilo ohm 182 = 1.8 kilo ohm 222 = 2.2 kilo ohm 272 = 2.7 kilo ohm 332 = 3.3 kilo ohm 392 = 3.9 kilo ohm 472 = 4.7 kilo ohm 562 = 5.6 kilo ohm 682 = 6.8 kilo ohm 822 = 8.2 kilo ohm 103 = 10 kilo ohm 123 = 12 kilo ohm 153 = 15 kilo ohm 183 = 18 kilo ohm 223 = 22 kilo ohm 273 = 27 kilo ohm 333 = 33 kilo ohm 393 = 39 kilo ohm 473 = 47 kilo ohm 563 = 56 kilo ohm 683 = 68 kilo ohm 823 = 82 kilo ohm 104 = 100 kilo ohm 124 = 120 kilo ohm 154 = 150 kilo ohm 184 = 180 kilo ohm 224 = 220 kilo ohm 274 = 270 kilo ohm 334 = 330 kilo ohm 394 = 390 kilo ohm 474 = 470 kilo ohm 564 = 560 kilo ohm 684 = 680 kilo ohm 824 = 820 kilo ohm 105 = 1 mega ohm 125 = 1M2 or 1.2 mega ohm 155 = 1.5 mega ohm 185 = 1.8 mega ohm 225 = 2.2 mega ohm 275 = 2.7 mega ohm 335 = 3.3 mega ohm 395 = 3.9 mega ohm 475 = 4.7 mega ohm 565 = 5.6 mega ohm 685 = 6.8 mega ohm 825 = 8.2 mega ohm 106 = 10M0 or 10 mega ohm & so on for 4 digit code mao ni xa ang mga common number based on my experience 0000 = 00R 00R1 = 0.1 ohm 0R22 = 0.22 ohm 0R47 = 0.47 ohm 0R68 = 0.68 ohm 0R82 = 0.82 ohm 1R00 = 1R or 1 ohm 1R20 = 1R2 or 1.2 ohm 2R20 = 2R2 or 2.2 ohm 3R30 = 3.3 ohm 4R70 = 4.7 ohm 5R60 = 5.6 ohm 6R80 = 6.8 ohm 8R20 = 8.2 ohm 10R0 = 10R or 10 ohm 12R0 = 12R or 12 ohm 15R0 = 15R or 15 ohm 18R0 = 18 ohm 22R0 = 22 ohm 27R0 = 27 ohm 33R0 = 33 ohm 39R0 = 39 ohm 47R0 = 47 ohm 56R0 = 56 ohm 68R0 = 68 ohm 82R0 = 82 ohm 91R0 = 91 ohm 1000 = 100 ohm 1200 = 120 ohm 1500 = 150 ohm 1800 = 180 ohm 2200 = 220 ohm 2700 = 270 ohm 3300 = 330 ohm 3900 = 390 ohm 4700 = 470 ohm 5600 = 560 ohm 6800 = 680 ohm 8200 = 820 ohm 9100 = 910 ohm 1001 = 1 kilo ohm 1201= 1.2 kilo ohm 1501 = 1.5 kilo ohm 1801 = 1.8 kilo ohm 2201 = 2.2 kilo ohm 2701 = 2.7 kilo ohm 3301 = 3.3 kilo ohm 3901 = 3.9 kilo ohm 4701 = 4.7 kilo ohm 5601 = 5.6 kilo ohm 6801 = 6.8 kilo ohm 8201 = 8.2 kilo ohm 9101 = 9.1 kilo ohm 1002 = 10 kilo ohm 1202 = 12 kilo ohm 1502 = 15 kilo ohm 1802 = 18 kilo ohm 2202 = 22 kilo ohm 2702 = 27 kilo ohm 3302 = 33 kilo ohm 3902 = 39 kilo ohm 4702 = 47 kilo ohm 5602 = 56 kilo ohm 6802 = 68 kilo ohm 8202 = 82 kilo ohm 9102 = 91 kilo ohm 1003 = 100 kilo ohm 1203 = 120 kilo ohm 1503 = 150 kilo ohm 1803 = 180 kilo ohm 2203 = 220 kilo ohm 2703 = 270 kilo ohm 3303 = 330 kilo ohm 3903 = 390 kilo ohm 4703 = 470 kilo ohm 5603 = 560 kilo ohm 6803 = 680 kilo ohm 8203 = 820 kilo ohm 9103 = 910 kilo ohm 1004 = 1 mega ohm 1204 = 1M2 or 1.2 mega ohm 1504 = 1.5 mega ohm 1804 = 1.8 mega ohm 2204 = 2.2 mega ohm 2704 = 2.7 mega ohm 3304 = 3.3 mega ohm 3904 = 3.9 mega ohm 4704 = 4.7 mega ohm 5604= 5.6 mega ohm 6804 = 6.8 mega ohm 8204 = 8.2 mega ohm 9104 = 9.1 mega ohm 1005 = 10M0 or 10 mega ohm & so on isinali ko narin ito para mas madaling ma-identify at ma-aware ang iba |
The Following 8 Users Say Thank You to gsmkasargod For This Useful Post: |
05-22-2014, 05:47 | #2 (permalink) |
No Life Poster Join Date: Mar 2009 Location: earth
Posts: 1,430
Member: 992568 Status: Offline Sonork: kulit Thanks Meter: 231 | sa capacitor sir na smd din paano kaya kunin ang value at i check kung good/bad translation : do you have also how to test a smd type capacitor. |
05-30-2014, 04:43 | #4 (permalink) |
No Life Poster Join Date: Nov 2012 Location: Kerala
Posts: 517
Member: 1834782 Status: Offline Sonork: 100.1623166 Thanks Meter: 562 | SMD Capacitor & Testing SMD Capacitor How to Check Capacitors? In most cases, a capacitor fails due to the deterioration of the dielectric material between its plate.Defective capacitors can have an internal shorted terminals, excessive leakage and degradation of capacitance meter. For an electrolytic capacitor (capacitors with polarity), short the terminal capacitor to discharge it prior to testing. To test a capacitor, set the multimeter to Rx10 or Rx1K scale. Connect the tester negative probe to the capacitor positive terminal and the positive probe to the negative terminal. A good indication for electrolytic capacitor shows the meter needle deflecting towards zero and moves back again to infinite resistance position. For ceramic, Mylar and other capacitor with a capacitance with less than 1.0 uF, the meter will not deflect at all. A defective indication for an electrolytic capacitor shows that the meter will rest on zero and remain stationary at a point which is an indication that the capacitor is shorted. |
The Following 9 Users Say Thank You to gsmkasargod For This Useful Post: |
05-30-2014, 19:54 | #5 (permalink) |
No Life Poster Join Date: Jul 2007 Location: My Computer
Posts: 1,308
Member: 553178 Status: Offline Sonork: 100.1592454 Thanks Meter: 957 | @ gsmkasargod: Really good work dear i have posted some info in off topic section and thread marked as stick if you can make it run this will be very cool and will help lot of users also all in one thread. http://forum.gsmhosting.com/vbb/f36/...basic-1161502/ i will also left this post link there. for users who really need good information. br, ABDUL HAKEEM |
06-10-2014, 21:13 | #6 (permalink) |
Junior Member Join Date: Nov 2012
Posts: 3
Member: 1833785 Status: Offline Thanks Meter: 0 | gsmkasargod, Thanks a lot for the information and this is awesome explanation of the things and I am wondering about the Capacitor testing that is it possible to test the ceramic capacitors as you mentioned it is not possible to test it with meter? |
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