I-Calculator yekhowudi yombala we-Resistor
Ukukhupha ikhowudi 4/5/6-imibala ye-band resistor kwixabiso - okanye utshintshe ixabiso kwi-bands.
Iinketho ze projekti
Malunga nale Calculator
The resistor color code is the scheme of coloured bands painted on a resistor to show its value, used because the parts are too small to print numbers on. Reading left to right, the first bands are significant digits, the next band is a power-of-ten multiplier and the last band is the tolerance. For a 4-band part the value is (10 × digit1 + digit2) × 10^multiplier ohms; 5- and 6-band parts add a third significant digit for tighter precision (and, on 6-band parts, a temperature-coefficient band). Each colour maps to a fixed number: black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue 6, violet 7, grey 8, white 9, with gold and silver serving as ×0.1 and ×0.01 multipliers or ±5% and ±10% tolerances.
As a worked example, the classic brown-black-red-gold band pattern reads as digits 1 and 0, a ×100 multiplier and ±5% tolerance: (10 + 0) × 100 = 1,000 Ω, i.e. a 1 kΩ ±5% resistor whose true value lies anywhere from 950 Ω to 1,050 Ω. Decode any part by selecting the colour of each band from the drop-downs and the calculator returns the nominal resistance, the tolerance and the guaranteed value range.
Switch to reverse (encode) mode to go the other way: type a target resistance and the tool rounds it to the nearest value the digit bands can express, chooses the multiplier to match, and lists the band colours you would read off a real resistor of that value — handy when you have a schematic value and need to find or verify the physical part on your bench.
Imibuzo ebuza rhoqo
Iibhanti zombala we-resistor zisebenza njani?
Iibhanti ezimbini (okanye ezintathu) eziphambili zinika amasuntswana abalulekileyo, elandelayo yi ×10ⁿ ephindaphindwayo kwaye ekugqibeleni yi-tolerance. I-Brown-Black-Red-Gold = 1, 0, ×100, ±5% = 1 kΩ ±5%.
Ithetha ntoni ibhanti yokungathathi hlangothi?
Ukunyaniseka kukude kangakanani na ukumelana okunyanzelekileyo okubonakalayo kunokuthi kuhambe ukusuka kwixabiso elibizwa ngokuba lixabiso. ±5% 1 kΩ ukumelana okubonakalayo kunokulinganisa naphi na ukusuka kwi-950 Ω ukuya kwi-1050 Ω.
Indlela yokubuyisela ejikelezayo ikhetha njani iimbambo?
Ijikeleza injongo yakho kwixabiso elifutshane leentlobo zesicatshulwa ezinokubonisa, emva koko ikhetha umphinda-phindo ukuze ufundo luhambelane - imibala efanayo oza kuyifunda kwi-resistor eyiyo yexabiso.
Yintoni utshintsho phakathi kwee-4-, 5- kunye ne-6-band resistors?
I-4-band resistor ine-bands ezimbini ze-digit; i-5-band idibanisa i-digit yesithathu ye-tolerances eqinileyo njenge-±1%; ne-6-band idibanisa iband ye-temperature-coefficient egqibeleleyo ebonisa ukuba ixabiso lihamba njani kwiqondo ngalinye. Ii-bands ezininzi zithetha inxalenye ecacileyo.
Yintoni ekuphela kwayo kwe-resistor endiyifunda kuqala?
Qalisa kwibhanti ebekwe phezulu ecaleni kwaye ufunde ukuya kwibhanti yobulungisa, ehlala igolide okanye isilivere kwaye incinci ihlukaniswe nezinye. Ukuba igolide okanye isilivere ihlala kwisiphelo esisodwa, le yibhanti yobulungisa, ngoko ufunde ukusuka kwisiphelo esichaseneyo.
Yintoni ethethayo iintonga zegolide nesilivere?
Kwindawo yokuphindaphinda igolide ithetha ×0.1 nesilivere ithetha ×0.01, inika amaxabiso angaphantsi kwe-ohm. Kwindawo yokungazinzi igolide ithetha ±5% nesilivere ithetha ±10% — iingxaki ezimbini eziqhelekileyo zokungazinzi.
Kutheni le nto uxinzelelo lwam olulinganisayo aluhambelani kakuhle nekhowudi?
Iibhanti zinika ixabiso elimiselweyo kunye nefestile yokungakhathali. ±5% 1 kΩ umgcini-mandla angalinganisa ngokusemthethweni naphi na ukusuka kwi-950 Ω ukuya kwi-1,050 Ω, kwaye ubushushu kunye nobudala bangalitshintsha ngaphezu, ngoko ke ukungabikho kokulingana kwi-multimeter kuqhelekileyo ngokupheleleyo.
API — sebenzisa le calculator ukusuka kwikhowudi
Nceda le khadi lemali njengendawo esemva ye-JSON ekhululekileyo - akukho qhosha lifunekayo. Thumela amaxabiso endawo ezantsi njengeparameter yombuzo okanye i-JSON. Nantoni na oyenzayo isebenzisa okungagqibekanga okufanayo eli phepha ligqityiwe ngaphambili; iparameter engaziwayo yi 400, ayikho i zero ekhululekileyo. Funda i-API epheleleyo →
Incopho yesiphelo
GET https://calculator.free/api/v1/resistor-color-code/curl
curl "https://calculator.free/api/v1/resistor-color-code/?mode=decode&bands=4&band1=1&band2=0&multiplier=2&tolerance=5"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/resistor-color-code/?" + new URLSearchParams({
"mode": "decode",
"bands": "4",
"band1": "1",
"band2": "0",
"multiplier": "2",
"tolerance": "5"
}));
const data = await r.json();
console.log(data.results);Results are estimates for general guidance only, not financial, medical or tax advice.