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Product Information
This bulk pack of 100 high-power 1W infrared emitting diodes provides a robust solution for professional and DIY projects requiring strong, focused 850nm IR illumination. Each 5mm through-hole LED is engineered for reliability, delivering a potent radiant flux for applications in security, surveillance, and machine vision. Unlike standard lighting solutions such as 3528 SMD flexible LED strips, these components emit light in the infrared spectrum, invisible to the human eye but highly effective for night vision cameras and sensors. With a low forward voltage of 1.2-1.6V and a flexible operating current of 150-350mA, these emitters are versatile for custom PCB designs. This product is part of our extensive selection of IR LED emitters and diodes, offering excellent value and consistent performance for volume production or large-scale deployments.
Key Features
High-Intensity 850nm IR Output
Emits a powerful 1W beam at the 850nm near-infrared wavelength, ideal for enhancing night vision performance in CCTV and security cameras.
Standard 5mm Through-Hole Package
The universal 5mm T-1 3/4 package allows for easy integration into breadboards, custom PCBs, and existing electronic circuits.
Bulk 100-Piece Pack
Sold in a convenient pack of 100 units, providing exceptional value for manufacturers, engineers, and hobbyists building multiple devices.
Low Forward Voltage
Operates efficiently at just 1.2-1.6V, making it suitable for low-power and battery-operated applications.
Durable & Reliable Construction
Built with a quality Crystal element chip and an iron substrate for stable performance and effective heat dissipation.
Technical Highlights
- Low thermal resistance (≤ 5 °/W) ensures efficient heat transfer away from the LED die, promoting longer operational life.
- Wide viewing angle range of 15° to 60° provides options for both focused beam and wide area illumination.
- High ESD tolerance of 2000V (Human Body Model) protects the component during handling and assembly.
- Stable radiant flux output between 50-400mW for consistent and reliable IR illumination.
- Designed for a wide operating current range (150-350mA), allowing you to balance intensity and power consumption.
Product Specifications
| Parameter | Details |
|---|---|
| Product Model | FSLSR-1001 |
| Peak Wavelength | 850nm (Near-Infrared) |
| Package Type | 5mm Round, Through-Hole |
| Power Rating | 1W |
| Forward Voltage (Vf) | 1.2V - 1.6V DC |
| Forward Current (If) | 150mA - 350mA |
| Radiant Flux | 50mW - 400mW |
| Viewing Angle | 15° - 60° |
| Chip Brand | Crystal element |
| Substrate Material | Iron |
| Thermal Resistance | ≤ 5 °/W |
| ESD Protection (HBM) | 2000V |
| Operating Temperature | -25°C to +80°C |
| Storage Temperature | -40°C to +100°C |
| Quantity per Pack | 100 Pieces |
Application Scenarios
How to Handle & Solder These IR Emitters
- Identify Polarity: Before soldering, correctly identify the anode (positive, longer lead) and the cathode (negative, shorter lead). The cathode side also corresponds to the flat edge on the lens base.
- Implement Current Limiting: NEVER connect the diode directly to a voltage source. Use a constant current driver set to 150-350mA or a series resistor calculated for your specific supply voltage.
- Solder Carefully: Solder leads quickly to prevent heat damage to the internal die. A typical guideline is under 5 seconds at 260°C (500°F). Avoid applying mechanical stress to the leads while hot.
- Consider Heatsinking: For continuous operation at the maximum 1W power rating, proper thermal management is crucial. Ensure your PCB has adequate copper area or an external heatsink to dissipate heat.
- Test Your Circuit: Power the circuit briefly to ensure the emitter is functioning correctly before final assembly. Use a night-vision-enabled camera to see the IR output.
- Observe Safety: Infrared light is invisible to the naked eye. Avoid staring directly into an active emitter at close range to prevent potential eye damage.
- Always use current limiting. Failure to do so will destroy the LED instantly.
- Observe proper ESD (Electrostatic Discharge) precautions when handling the components.
- The 850nm wavelength produces a faint, visible red glow directly from the emitter die; this is normal and indicates operation.
- For powering large arrays, a common approach is to use a higher voltage source like a DC12V power adapter with a suitable constant current driver or DC-DC buck converter.
What's in the Box
- ✓100 x 850nm 1W 5mm IR LED Emitter Diodes
Frequently Asked Questions
Q: What is the difference between 850nm and 940nm IR LEDs?
A:850nm LEDs produce a faint red glow from the emitter, which can be a deterrent in covert security, but cameras are generally more sensitive to this wavelength. 940nm LEDs are completely invisible to the human eye, offering total stealth. For applications requiring total invisibility, we also offer components and 940nm infrared LED strips.
Q: Do I need a resistor with this LED?
A:Yes, absolutely. You must use either a series resistor to limit current or, for better performance, a dedicated constant current driver. Connecting the LED directly to a voltage source will destroy it.
Q: How do I calculate the correct resistor value?
A:Use Ohm's Law: R = (V_supply - V_forward) / I_forward. For example, with a 5V supply and a target current of 300mA (0.3A), and using a forward voltage of 1.5V: R = (5V - 1.5V) / 0.3A = 11.67Ω. Use the next standard higher value, like 12Ω.
Q: Is the light from this 850nm LED visible?
A:The infrared light beam itself is invisible to the human eye. However, you will see a faint red glow directly on the LED's chip when it is powered on. This is a characteristic of the 850nm wavelength.
Q: How can I tell the polarity (anode/cathode)?
A:The anode (positive) has the longer lead. The cathode (negative) has the shorter lead and is also indicated by a flat spot on the side of the 5mm plastic lens.
Q: Can I power multiple LEDs from one power supply?
A:Yes. You can wire them in series with a constant current driver, which is the most efficient method. You can also wire them in parallel, but each parallel string must have its own current-limiting resistor to prevent thermal runaway.
Q: Is a ready-made strip version available?
A:Yes, for projects that require covering a larger area without designing a custom PCB, we offer pre-assembled solutions. You can find them in our 850nm near-infrared LED strips category.
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Files for FSLSR-1001Images
These images were taken with Canon EOS 5D Mark IV and the studio light source is provided by Ra 98's full spectrum LED strip to realistically reproduce the colors of the item itself. All copyrights are created by the superlightingled team, please feel free to browse and download if you are a registered user!
LED Strip Light Guide
Common questions about this type of product, answered against this model’s own options. For full figures see the specification above or the spec sheet for this model.
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