🔍 SMD Markings and Codes
Depending on the precision system used by the manufacturer, the top of a 33k resistor will typically feature one of the following codes:
333(Standard 3-Digit Code): Used for ±5% tolerance components. The first two numbers (33) are the base digits, and the third number (3) is the multiplier (10³ or 1,000). 33 × 1,000 = 33,000Ω.3302(Precision 4-Digit Code): Used for ±1% high-precision components. The first three digits (330) are significant, and the fourth digit (2) is the multiplier (10² or 100). 330 × 100 = 33,000Ω.51C(EIA-96 System): Used on highly compact ±1% precision resistors (like the 0603 size). In the EIA-96 lookup table,51translates to a base value of 332, and the letterCindicates a multiplier of 100 (332 × 100 = 33,200Ω ≈ 33kΩ).
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