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Yellow LED 5MM

💡 5 mm Yellow LED (Diffused)

📝 Overview

A standard 5 mm yellow LED with a diffused lens, ideal for status indicators, panel lights, and Arduino-based projects. It emits a warm yellow light and fits easily into breadboards and PCBs.

🔍 Key Features

  • Forward voltage: ~1.8–2.2 V

  • Forward current: up to 20 mA (recommended 16–18 mA)

  • Luminous intensity: 150–210 mcd (typical) 

  • Wavelength: ~585–590 nm (yellow)

  • Viewing angle: ~60° (diffused lens)

  • Package: TO‑92 5 mm round, flat face, long lead = anode

✅ Typical Arduino Setup

Use with a current-limiting resistor:

5 V ── 220 Ω ── Anode (long lead) Cathode (short lead, flat side) ── GND

Use Arduino:


pinMode(LED_PIN, OUTPUT); digitalWrite(LED_PIN, HIGH);

For PWM brightness control:

analogWrite(LED_PIN, value); // value: 0–255


🎯 Applications

  • Indicator LEDs on PCBs and enclosures

  • Visual feedback for microcontroller projects

  • Signal lamps in DIY electronics

  • Educational and prototyping tasks

📊 Specs at a Glance

ParameterTypical Value
Vf (forward voltage)1.8–2.2 V @ 20 mA
If (current)16–20 mA continuous
Luminous intensity150–210 mcd
Wavelength585–590 nm
Viewing angle~60°


0.75 LE 0.75 LE

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