const eia96Table = {
“01”: 100, “02”: 102, “03”: 105, “04”: 107, “05”: 110, “06”: 113, “07”: 115, “08”: 118, “09”: 121, “10”: 124,
“11”: 127, “12”: 130, “13”: 133, “14”: 137, “15”: 140, “16”: 143, “17”: 147, “18”: 150, “19”: 154, “20”: 158,
“21”: 162, “22”: 165, “23”: 169, “24”: 174, “25”: 178, “26”: 182, “27”: 187, “28”: 191, “29”: 196, “30”: 200,
“31”: 205, “32”: 210, “33”: 215, “34”: 221, “35”: 226, “36”: 232, “37”: 237, “38”: 243, “39”: 249, “40”: 255,
“41”: 261, “42”: 267, “43”: 274, “44”: 280, “45”: 287, “46”: 294, “47”: 301, “48”: 309, “49”: 316, “50”: 324,
“51”: 332, “52”: 340, “53”: 348, “54”: 357, “55”: 365, “56”: 374, “57”: 383, “58”: 392, “59”: 402, “60”: 412,
“61”: 422, “62”: 432, “63”: 442, “64”: 453, “65”: 464, “66”: 475, “67”: 487, “68”: 499, “69”: 511, “70”: 523,
“71”: 536, “72”: 549, “73”: 562, “74”: 576, “75”: 590, “76”: 604, “77”: 619, “78”: 634, “79”: 649, “80”: 665,
“81”: 681, “82”: 698, “83”: 715, “84”: 732, “85”: 750, “86”: 768, “87”: 787, “88”: 806, “89”: 825, “90”: 845,
“91”: 866, “92”: 887, “93”: 909, “94”: 931, “95”: 953, “96”: 976
};

const eia96Multiplier = {
‘Z’: 0.001,
‘Y’: 0.01,
‘R’: 0.1,
‘A’: 1,
‘B’: 10,
‘C’: 100,
‘D’: 1000,
‘E’: 10000,
‘F’: 100000
};

function decodeResistor() {
let code = document.getElementById(“resistorCode”).value.trim().toUpperCase();
let result = “”;

if (/^d{3}$/.test(code)) {
// 3-digit code
let sig = parseInt(code.slice(0, 2));
let mult = parseInt(code[2]);
let value = sig * Math.pow(10, mult);
result = `Decoded Resistance: ${formatResistance(value)}`;
} else if (/^d{4}$/.test(code)) {
// 4-digit code
let sig = parseInt(code.slice(0, 3));
let mult = parseInt(code[3]);
let value = sig * Math.pow(10, mult);
result = `Decoded Resistance: ${formatResistance(value)}`;
} else if (/^d{2}[A-Z]$/.test(code)) {
// EIA-96 code
let digits = code.slice(0, 2);
let letter = code[2];
if (eia96Table[digits] && eia96Multiplier[letter]) {
let base = eia96Table[digits];
let mult = eia96Multiplier[letter];
let value = base * mult;
result = `Decoded EIA-96 Resistance: ${formatResistance(value)}`;
} else {
result = “Invalid EIA-96 code.”;
}
} else {
result = “Invalid resistor code format.”;
}

document.getElementById(“resistorResult”).innerHTML = result;
}

function clearResistor() {
document.getElementById(“resistorCode”).value = “”;
document.getElementById(“resistorResult”).innerHTML = “”;
}

function formatResistance(ohms) {
if (ohms >= 1e6) return (ohms / 1e6).toFixed(2) + ” MΩ”;
if (ohms >= 1e3) return (ohms / 1e3).toFixed(2) + ” kΩ”;
return ohms.toFixed(2) + ” Ω”;
}

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