XR Series UV Emitter or Star Board LED (308 nm)
Where to Buy 中文 
High UV B power for phototherapy
RayVio XR 308nm Series UV LEDs deliver high-power and high-efficiency UV B light for phototherapy with peak spectral wavelength output of 308nm.
These devices are designed to meet the most demanding and mission critical applications in the healthcare and well being segments.
Features and Benefits
Highly efficient UV B devices. Most suitable for portable skin care applications
Proven effective for skin treatment at 308nm
Industry leading reliability and lifetime
Star board package simplifies thermal engineering and allows for rapid prototyping and development
Common Applications
? ? Skin treatment
? ? Psoriasis
? ? Eczema
? ? Vitiligo
? ? Lichen planus
? ? DNA analysis
Product Options
Table 1. Radiant Flux Performance Characteristics at Ta=25?C
| Part Number | Radiant Output @ 100mA, 25?C | ||
|---|---|---|---|
| Min. (mW) | Typ. (mW) | Max. (mW) | |
| RVXR-308-SM-08500300 | 10 | 13 | 15 |
| RVXR-308-SB-08500300 | 10 | 13 | 15 |
Table 2. Electrical and Optical Characteristics at Ta=25?C
| Characteristics | Unit | Min | Typical | Max |
|---|---|---|---|---|
| Peak Wavelength (@100mA) | nm | 305 | 308 | 315 |
| Forward Voltage (@100mA) | V | 5 | 6 | 7.5 |
| Spectrum Half Width (FWHM) | nm | - | 17 | - |
| View Angle | degrees | - | 120 | - |
| Thermal Resistance (Junction to solder point) |
°C/W | - | 15 | - |
- RayVio maintains a tolerance of ±10% on radiant flux and ±3nm on peak wavelength
- Although all LEDs are tested, some values may vary slightly depending on the conditions of the test equipment
Reliability
Table 3.
| Forward Current | % of Nominal Output Power |
P70 Reliability | P50 Reliability |
|---|---|---|---|
| 50mA | 50% | 5,000 hours | 10,000 hours |
| 70mA | 70% | 2,500 hours | 5,000 hours |
| 100mA (nominal) | 100% (nominal) | 1,250 hours | 2,500 hours |
Absolute Maximum Ratings
Table 4.
| Parameter | Maximum Performance |
|---|---|
| Power Dissipation | 0.75 W |
| Forward Current | 100mA |
| Junction Temperature, Tj | 60°C |
| Storage Temperature | -30°C to 150°C |
| ESD Sensitivity | +/-8kV Human Body Model |