High-Performance 625nm Red LED for Precision Optical Applications
The E628-10-201L4 by Bee Photon is a premium 625nm Red LED designed to deliver high luminosity and exceptional reliability for demanding industrial applications. Engineered with a narrow 4-degree emission angle, this high-power red LED emitter provides focused light output, making it the perfect solution for precision optical sensing and signaling tasks where accuracy is paramount.
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| Parameter | Symbol | Condition | E628-10-201L4 | Unit | ||
|---|---|---|---|---|---|---|
| Min. | Typ. | Max. | ||||
| Forward voltage | Vf1 | If=50mA | 2 | – | 2.60 | V |
| Reverse current | Ir | Vr=-5V | – | – | 10 | μA |
| Peak emission wavelength | λp | If=50mA | 625 | – | 630 | nm |
| Radiant flux | Φe | If=50mA | 8 | 10 | – | mW |
| Emission Angle | 2θ1/2 | If=50mA | – | 4 | 6 | deg |
| Parameter | Symbol | Condition | E628-10-201L4 | Unit |
|---|---|---|---|---|
| Forward DC Current | If | Ta=25°C | ≤ 60 | mA |
| Forward Pulse Current | Ifpm | Ta=25°C | ≤ 100 | mA |
| Reverse voltage | Vr | Ta=25°C | ≤ 5 | V |
| Power Consumption | P | – | ≤ 130 | mW |
| Storage temperature1 | Tstg | – | -40 to +105 | °C |
| Operating temperature1 | Topr | – | -40 to +105 | °C |
| Soldering temperature | Tsol | – | 260 (<10s) | °C |
Note 1: No dew condensation.

Key Features & Applications:
Precise Wavelength: With a peak emission wavelength between 625nm and 630nm, this device offers stable spectral performance essential for optical calibration.
Focused Beam Output: The ultra-narrow 4-degree viewing angle ensures high radiant intensity (Typ. 10mW) directed exactly where needed, minimizing light loss.
Robust Industrial Design: Capable of operating in extreme temperatures ranging from -40°C to +105°C, ensuring longevity in harsh environments.
Versatile Usage: Specifically optimized for use in optical switches, high-resolution encoders, and industrial sensors requiring a dependable point source of red light.
Whether you are designing next-generation optical encoders or robust sensing systems, the E628-10-201L4 625nm Red LED offers the electrical stability and optical efficiency your project demands.