LS2CHAC Deep UV LED chip

  • Product features:High reliability, long service life, environmental protection and energy conservation, small angle light output
  • Application fields:Sterilization, medical phototherapy, optical sensor, biological analysis / detection
SKU: LS2CHAC Category:

Description

  • Product photos
LS2CHAC LS2CHAC
  • Device structure

LS2CHAC


LS2CHAC

Circuit connection

LS2CHAC

Recommended pad


  • A single device contains three different types of chips, namely UVA, UVC, and Zener diodes. Among them, Zener diodes play an ESD protection role on UVC LEDs;
  • â‘  It is the negative electrode of UVC, â‘¢ the positive electrode of UVC; â‘¡ It is a heat dissipation pad;
  • The mark point on the front is the positive symbol, and the missing corner on the back is the negative symbol;
  • Due to different batches of brackets, there may be slight differences in the physical appearance. Products with different appearances are compatible with each other and do not affect their use;
  • Drawing unit: mm, unless otherwise specified, dimensional tolerance is ± 0.20 mm
  • Package: 3535, overall size: 3.5 × three point five × 3.46 (L × W × H) [Unit: mm]
  • Package material: aluminum nitride ceramic bracket, hemispherical lens
  • Photoelectric characteristic parameters

UVC photoelectric parameters and spec range (@ 100mA, Ta = 25 ℃, Rh = 30%)

Item Symbol Min. Typ. Max. Bin Unit
Peak wavelength λp 270 / 280 Such as groups nm
Optical power P0 25 / 40 / mW
working voltage Vf 5 / 7 0.1 V
Driving current If / 100 / / mA
Irritation angle 2θ1/2 / 30 / / deg.
FWHM of wave crest Δλ 7 / 13 / nm
thermal resistance RΘj-b / 20 / / ℃/W

Wavelength range

Groups W02
Wavelength (nm) 270~280

Optical power range

Groups P056 P057 P058
Optical power (MW) 25~30 30~35 35~40

Voltage range

Groups V11 V12 V13 V14 V15 V16
Voltage (V) 5.0~5.1 5.1~5.2 5.2~5.3 5.3~5.4 5.4~5.5 5.5~5.6
Groups V17 V18 V19 V1A V1B V1C
Voltage (V) 5.6~5.7 5.7~5.8 5.8~5.9 5.9~6.0 6.0~6.1 6.1~6.2
Groups V1D V1E V1F V1G V1H V1I
Voltage (V) 6.2~6.3 6.3~6.4 6.4~6.5 6.5~6.6 6.6~6.7 6.7~6.8
Groups V1J V1K
Voltage (V) 6.8~6.9 6.9~7.0

Limit conditions

parameter Symbol numerical value Company
power waste Pd 1050 mW
Forward current If 150 mA
Forward voltage Vf 5~7 V
Service temperature TOPR -30~60 ℃
Storage temperature TSTG -40~100 ℃
Junction temperature Tj 80 ℃
Static electricity (human mode) ESD 2000 V
  • Optical power refers to the total optical output power collected by integrating sphere;
  • The measurement errors of forward voltage, peak wavelength and radiation power are ± 0.2V, ± 3nm and ± 10%, respectively. The increase of injection current will lead to temperature rise, The light attenuation of LED lamp beads will be accelerated, and the service life will be shortened; when the LED lamp beads are tested or used beyond the above limit values, the reliability of the device may be affected and permanent damage may be caused.
  • It is recommended to provide a good cooling environment or cooling system to obtain the best effect.
  • Legend of photoelectric parameters
LS2CHAC
  • The above test data are from DUVTek, and the actual curve will be different depending on the sampling situation.
  • Reflow soldering
Reflow soldering profile
  • The patch shall be reflowed with environment-friendly solder paste,The peak temperature should not be greater than 260 ℃The peak time should be controlled within 10 seconds, and the reflux time should not exceed 8 minutes.
  • Reflow welding should not be more than once;
  • It is not recommended to repair after welding dark purple led. When repair is inevitable, double head soldering iron must be used, and the product itself should not be damaged while operating carefully;
  • When welding, do not apply pressure on the deep UV LED during heating;
  • It is recommended to use convection reflow welder with temperature above 7.
  • Packaging specification

Packing instructions

Carrier
Reel
Aluminum foil bag packaging
  • The camber angle of the carrier is not more than 1 mm / 100 mm, and the length is 250 mm;
  • All dimensions meet eia-481-b requirements;
  • Materials: conductive polyester polystyrene plastic.

Label description

label interpretation
TYPE
SPEC Wxxpxxxvxxa1, please refer to spec scope for specific meaning
LOTS Batch number
QTY number
Date date
  • Reliability test
Test items experimental condition standard Failure ratio
Normal temperature aging T = 25 ℃, calibration current, continuous lighting for 1000 hours ΔPo≤15%,ΔVF≤20% 0/10
Thermal Shock -300 cycles of cold and hot shock at 40~+100 ℃, 30min/cycle ΔPo≤15%,ΔVF≤20% 0/10
Antistatic R=1.5kΩ, C=100pF,Voltage level=2kV ΔPo≤15%,ΔVF≤20% 0/10
  • Human protection
Human protection
  • All assembly workers, observers and bystanders must have eye and skin protection;
  • It is forbidden to observe with naked eyes (including through microscope) and handle deep UV LED naked in operation;
  • Do not touch the optical structure of the deep UV lamp bead;
  • This product is a humidity sensitive product, the recommended storage temperature is 18 ℃~ 30 ℃, the humidity is 30% ~ 60%, and sealed. In order to ensure the product quality, it is recommended to use it within one year after leaving the factory if the outer packing bag is not opened; if the outer packing bag is opened, it is recommended to use it within 24 hours, and re seal it for storage after 24 hours. Dehumidification measures should be taken before the next use: temperature: 65 ℃ time: 5h.

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