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3mm Red LED (Pack of 10)
Reliable 3mm red LEDs ideal for indicator circuits, breadboard prototyping, and embedded projects. This pack of 10 offers bright, consistent red illumination with low power consumption and long operational life. A must-have staple for every electronics toolkit - from The Engineer Store, Bengaluru.
Specifications
| LED Size | 3mm (T-1) Through-Hole |
| Emitted Color | Red |
| Lens Color | Red Diffused / Clear (standard) |
| Forward Voltage (Vf) | 1.8V - 2.2V typical |
| Forward Current (If) | 20mA (max) |
| Wavelength | 620nm - 635nm |
| Luminous Intensity | ~80-150 mcd typical |
| Viewing Angle | ~25 degrees-30 degrees |
| Recommended Resistor (5V) | 150Ohm - 220Ohm |
| Package Quantity | 10 LEDs |
| Polarity Identification | Longer leg = Anode (+), Shorter leg / Flat edge = Cathode () |
| Operating Temperature | 25 degreesC to +85 degreesC |
| Lifespan | ~50,000 hours |
| Type | Electronics Component - Optoelectronics |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose This?
- Bright, uniform red output at just 20mA - ideal for status indicators and signal lights
- Standard 3mm through-hole package fits breadboards, perfboards, and custom PCBs effortlessly
- Low forward voltage (1.8V-2.2V) ensures compatibility with 3.3V and 5V logic systems
- Pack of 10 gives you spares for multiple projects without reordering
- Long 50,000-hour lifespan for dependable, maintenance-free operation
- Easy polarity identification via leg length and flat-edge marking
- 100% authentic from trusted suppliers
- 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse
- Expert technical support included
Project Ideas
- Power-On Indicators: Add a simple red LED to any circuit to confirm power status at a glance.
- Arduino & Raspberry Pi Projects: Use as GPIO output indicators - blink patterns, alarm signals, or debug markers.
- Traffic Light Model: Combine red, yellow, and green 3mm LEDs to build a miniature traffic signal for learning state machines.
- Battery Level Monitor: Create a multi-LED bar graph to visually display battery charge levels.
- IR / Sensor Feedback: Pair with sensors to provide visible alerts when thresholds are crossed (temperature, proximity, light).
- LED Chaser / Knight Rider Effect: Wire up all 10 LEDs in a row and program sequential lighting patterns with a microcontroller or 555 timer.
- Learning & Education: Perfect for teaching Ohm's Law, forward bias, current limiting, and basic circuit construction in classrooms and workshops.
What's in the Box
- 10 x 3mm Red LEDs (through-hole)
- Anti-static packaging for safe storage
- Documentation and support materials
Frequently Asked Questions
What resistor should I use with these LEDs?
For a 5V supply, a 150Ohm to 220Ohm resistor works well to limit current to around 15-20mA. For 3.3V, use a 68Ohm to 100Ohm resistor. Always place the resistor in series with the LED to prevent burnout.
How do I identify the anode and cathode?
The longer leg is the anode (+) and connects toward the positive supply. The shorter leg with the flat edge on the LED housing is the cathode () and connects toward ground.
Can I drive these directly from an Arduino GPIO pin?
Yes. Arduino GPIO pins output 5V and can source up to 20mA per pin. Use a 220Ohm series resistor for safe, bright operation.
Are these LEDs diffused or clear lens?
Standard stock is typically red-tinted diffused lens, which provides a wide, even glow. Clear-lens variants with a focused beam may also be supplied depending on batch - both perform identically in typical indicator applications.
Is this 100% authentic?
Yes, sourced directly from authorized distributors. Authentication verified.
Buy 3mm Red Led (Pack of 10) Online in India
Purchase the 3mm Red Led (Pack of 10) online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 3mm Red Led (Pack of 10) with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 3mm Red Led (Pack of 10) at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
3mm Red LED (Pack of 10)
Reliable 3mm red LEDs ideal for indicator circuits, breadboard prototyping, and embedded projects. This pack of 10 offers bright, consistent red illumination with low power consumption and long operational life. A must-have staple for every electronics toolkit - from The Engineer Store, Bengaluru.
Specifications
| LED Size | 3mm (T-1) Through-Hole |
| Emitted Color | Red |
| Lens Color | Red Diffused / Clear (standard) |
| Forward Voltage (Vf) | 1.8V - 2.2V typical |
| Forward Current (If) | 20mA (max) |
| Wavelength | 620nm - 635nm |
| Luminous Intensity | ~80-150 mcd typical |
| Viewing Angle | ~25 degrees-30 degrees |
| Recommended Resistor (5V) | 150Ohm - 220Ohm |
| Package Quantity | 10 LEDs |
| Polarity Identification | Longer leg = Anode (+), Shorter leg / Flat edge = Cathode () |
| Operating Temperature | 25 degreesC to +85 degreesC |
| Lifespan | ~50,000 hours |
| Type | Electronics Component - Optoelectronics |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose This?
- Bright, uniform red output at just 20mA - ideal for status indicators and signal lights
- Standard 3mm through-hole package fits breadboards, perfboards, and custom PCBs effortlessly
- Low forward voltage (1.8V-2.2V) ensures compatibility with 3.3V and 5V logic systems
- Pack of 10 gives you spares for multiple projects without reordering
- Long 50,000-hour lifespan for dependable, maintenance-free operation
- Easy polarity identification via leg length and flat-edge marking
- 100% authentic from trusted suppliers
- 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse
- Expert technical support included
Project Ideas
- Power-On Indicators: Add a simple red LED to any circuit to confirm power status at a glance.
- Arduino & Raspberry Pi Projects: Use as GPIO output indicators - blink patterns, alarm signals, or debug markers.
- Traffic Light Model: Combine red, yellow, and green 3mm LEDs to build a miniature traffic signal for learning state machines.
- Battery Level Monitor: Create a multi-LED bar graph to visually display battery charge levels.
- IR / Sensor Feedback: Pair with sensors to provide visible alerts when thresholds are crossed (temperature, proximity, light).
- LED Chaser / Knight Rider Effect: Wire up all 10 LEDs in a row and program sequential lighting patterns with a microcontroller or 555 timer.
- Learning & Education: Perfect for teaching Ohm's Law, forward bias, current limiting, and basic circuit construction in classrooms and workshops.
What's in the Box
- 10 x 3mm Red LEDs (through-hole)
- Anti-static packaging for safe storage
- Documentation and support materials
Frequently Asked Questions
What resistor should I use with these LEDs?
For a 5V supply, a 150Ohm to 220Ohm resistor works well to limit current to around 15-20mA. For 3.3V, use a 68Ohm to 100Ohm resistor. Always place the resistor in series with the LED to prevent burnout.
How do I identify the anode and cathode?
The longer leg is the anode (+) and connects toward the positive supply. The shorter leg with the flat edge on the LED housing is the cathode () and connects toward ground.
Can I drive these directly from an Arduino GPIO pin?
Yes. Arduino GPIO pins output 5V and can source up to 20mA per pin. Use a 220Ohm series resistor for safe, bright operation.
Are these LEDs diffused or clear lens?
Standard stock is typically red-tinted diffused lens, which provides a wide, even glow. Clear-lens variants with a focused beam may also be supplied depending on batch - both perform identically in typical indicator applications.
Is this 100% authentic?
Yes, sourced directly from authorized distributors. Authentication verified.
Buy 3mm Red Led (Pack of 10) Online in India
Purchase the 3mm Red Led (Pack of 10) online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 3mm Red Led (Pack of 10) with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 3mm Red Led (Pack of 10) at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.