[sdiy] 0805 resistors with consistent 3 or 4 digit value markings?
Roman
modular at go2.pl
Sat Jan 6 19:09:27 CET 2018
Resistors are without marking in the store photos because they use the same photo for every value and don't want to confuse people. I have never encountered 0805 resistor without marking in 20 years. Roman Dnia 6 stycznia 2018 08:04 Robin Whittle < rw at firstpr.com.au > napisał(a): Does anyone know of a range of 0805 resistors in which all values are consistently marked numerically with their value? For instance, for 560R and 120k: 561 124 would be best. Alternatively: 5601 1203 I only need the E12 series: 10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68, 75 and 82. 1% or 5% is fine. There's a range of 0805 resistors at element14 manufactured by Yageo (Phycomp). For instance the 1% "RC0805FR-07560RL" (9237461). As best I understand the datasheet: www.farnell.com www.farnell.com these all should be marked with four digits, but the 39k (RC0805FR-0739KL = 9237828) is simply black. Likewise the 220k (RC0805FR-07220KL = 9237917). The 390k (RC0805FR-07390KL = 9237941) is marked "E06E". I had a quick look at Mouser, but there were a plethora of resistor types, some quite expensive and many of which were illustrated as not being marked. The illustrations and apparently the data sheets can't be trusted anyway. Its bad enough having anonymous ceramic capacitors and diodes (Diodes Inc at least) with the polarity line only visible with a magnifier. Vishay 1N4148Ws have a clearly visible laser-marked cathode line. Ideally all the resistors I use would have relatively large 3 digit value text. I bought a Chinese-made book of 0805 resistors and a few capacitors from eBay a few years ago. The resistors are all 5% Yageo and are marked clearly with three digits. However, the range is more per decade than E12, and misses out on several of the E12 values. Looking again at eBay, I couldn't find any resistor books where the range of values was specified properly and where resistor marking was also specified. A book would be good, but an actual range of resistors I can order on tape in any quantity would be best. - Robin Daylesford Victoria Australia ______________________________ Synth-diy mailing list Synth-diy at synth-diy.org synth-diy.org synth-diy.org
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