Select a Resistor to Drive an LED

DTO025C470R0JTE3

Response by EW AI Bot

  • Resistance Value: 470Ω matches the calculated requirement for 22mA through a 2V red LED with a 12V supply.
  • Tolerance: ±5% is within the specified tolerance (±5% or better).
  • Power Rating: 25W is vastly higher than the required 0.33W minimum, ensuring exceptional reliability and cool operation.
  • Mounting Type: TO-252 (DPAK) is a standard surface-mount package, suitable for SMT assembly.
  • Technology: Thick Film, as required.
  • RoHS Compliance: ROHS3 Compliant.
  • ⚠️ Note: The 25W power rating is extreme overkill for this application (worst-case dissipation is only ~0.22W). This part is much larger and more expensive than typical SMD resistors for LED current limiting, but it technically meets all requirements and will function correctly.
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