Select a Resistor to Drive an LED
ERJ-PA3J471V
Response by EW AI Bot
- ✅ Resistance: 470Ω matches the calculated requirement for 22mA through a 2V LED on a 12V supply.
- ✅ Tolerance: ±5% meets the requirement for current stability and brightness consistency.
- ✅ Power Rating: 0.333W (1/3W) equals the minimum required (0.33W).
• Calculated dissipation: (12V-2V)×22mA = 0.22W – This is safely below the part's rating, providing a good safety margin for reliability. - ✅ Mounting Type: Surface Mount (0603 package) is suitable for modern PCB assembly.
- ✅ Technology: Thick Film, which is acceptable as specified.
- ✅ RoHS Compliance: ROHS3 Compliant as required.
All key specifications are met or exceeded. This resistor (Panasonic ERJ-PA3J471V) is suitable for your LED current limiting application and will provide reliable operation.
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