Fusible resistors fusing characteristics specifications frn0w4 frn0w2 frn01w frn02w frn03w derating curve overload curve the fusing test current orvoltage shouldbe stable change within 5. First three digits are significant fourth digit represents number of zeros to follow.
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4 5 Band 5 Resistor With Superfluous Black End
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Yageo offers complete range of fusible resistors which operate both as a normal resistor and as a fuse.
Fusible resistor code. The official e commerce division of nte electronics inc. Fusible non flammable resistors vishay bccomponents dimensions marking the nominal resistance and tolerance are marked on the resistor using four coloured bands in accordance with iec publication 60062 color codes for fixed resistors. Per the above resistance color code chart in videogames101s post.
Fusible resistors fixed manufactured by vishay a global leader for semiconductors and passive electronic components. It will spread to the substrate and encapsulation if any slower. Fw fusible wirewound rated power 10 10 watts 20 20 watts 30 30 watts 50 50 watts 70 70 watts pin style a axial resistance code r100 ohms.
In short time only the resistor film itself a much smaller mass takes the heat adiabatically. For questions and assistance. Brown black silver gold black 10 x 01 10 ohms 5 tolerance the other spec youll need is the power rating for the resistor which determines how much power it will handle before blowing.
You can determine the power rating by the size of the part. For ease of recognition a fifth ring is added which is violet for type nfr25 and white for type nfr25h. The resistors are designed to protect circuit from abrupt transients and meet safety requirements.
R represents decimal point examples7r50 75 ohms r100 ohms. Designed to protect circuit from abrupt transients and meet safety requirements. A problem comes when you try to extrapolate to timescales shorter than the resistor body masss thermal time constant.
Fusible wirewound resistors have a reliable repeatable fusing characteristic that allows them to be used in many high temperature power hungary applications where a standard wirewound resistor would fall short in performance.
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