High-Power Infrared (IR) LEDs
Overview
High Power IR LED is a high-power light-emitting diode that emits infrared light. It is usually made of semiconductor materials and can produce high-intensity, high-brightness infrared light. High-power infrared LEDs are mainly used in infrared communications, infrared sensors, infrared lighting and other fields.
Available at 850 nm (visible faint red glow, high camera sensitivity) and 940 nm (completely covert), delivering radiant flux up to 2000 mW per emitter.
Optimized for high-drive operation with excellent thermal dissipation for stable performance in demanding environments.
Absolute Maximum Ratings
| Parameter | Symbol | Rating | Unit |
| Continuous Forward Current | IF | 800 | mA |
| Peak Forward Current (≤100 μs, Duty ≤1%) | IFP | 1200 | mA |
| Reverse Voltage | VR | 5 | V |
| Power Dissipation | PD | 3000 | mW |
| Junction Temperature | Tj | 150 | °C |
| Operating Temperature | TOPR | −40 to +85 | °C |
| Storage Temperature | TSTG | −40 to +100 | °C |
| ESD Withstand Voltage (HBM) | — | ≥2000 | V |
Note: Soldering temperature: 260°C ±10°C for 5 seconds max.
Available Models & Part Numbers
Table 1. Typical optical and electrical characteristics (Tj = 25°C)
| Model | Rank Code | Color Type | Wavelength (nm) | Radiant Intensity (mW/sr) | Forward Voltage VF (V) | Viewing Angle | Test Current | Part Number | |||
| Device Model | Rank | Typical λ (nm) | Min | Max | Min | Max | Min | Max | (2θ½, °) | (mA) | P/N |
| PIH2WE | SMDIL1101 | 850 | 830 | 860 | 130 | 160 | 1.40 | 2.00 | 130 | 300 | 8541401000SMDIL1101 |
| PIK2WE | SMDIL1102 | 880 | 870 | 890 | 150 | 180 | 1.40 | 2.00 | 130 | 300 | 8541401000SMDIL1102 |
| PIQ2WE | SMDIL1103 | 940 | 930 | 950 | 180 | 300 | 1.40 | 2.00 | 130 | 300 | 8541401000SMDIL1103 |
| PIH2WF | SMDIL1104 | 850 | 830 | 860 | 150 | 180 | 1.40 | 2.00 | 130 | 500 | 8541401000SMDIL1104 |
| PIK2WF | SMDIL1105 | 880 | 870 | 890 | 170 | 210 | 1.40 | 2.00 | 130 | 500 | 8541401000SMDIL1105 |
| PIQ2WF | SMDIL1106 | 940 | 930 | 950 | 200 | 330 | 1.40 | 2.00 | 130 | 500 | 8541401000SMDIL1106 |
| PIH2WF | SMDIL1107 | 850 | 830 | 860 | 290 | 490 | 1.40 | 2.00 | 130 | 800 | 8541401000SMDIL1107 |
| PIK2WF | SMDIL1108 | 880 | 870 | 890 | 290 | 490 | 1.40 | 2.00 | 130 | 800 | 8541401000SMDIL1108 |
| PIQ2WF | SMDIL1109 | 940 | 930 | 950 | 670 | 1070 | 1.40 | 2.00 | 130 | 800 | 8541401000SMDIL1109 |
Key Applications
- Long-Range Surveillance: High-intensity IR illumination for PTZ cameras, license plate recognition (LPR), and perimeter security (up to 200+ meters)
- Industrial Machine Vision: Structured lighting for 3D scanning, defect detection, and robotic guidance
- Optical Sensing: High-SNR proximity and distance sensors in dusty or outdoor environments
- Specialized Lighting: Covert IR floodlights for military, wildlife monitoring, and smart city infrastructure
• Mount on metal-core PCB or aluminum heatsink to maintain Tj < 125°C.
• Use constant-current drivers with soft-start to prevent current surge.
• 850 nm offers ~30% higher camera response than 940 nm but emits faint red glow.
• For arrays, ensure uniform thermal design to avoid hotspot-induced lumen depreciation.



