BL-42D2-0344 LIGHTING SCIENCE GROUP CORPORATION, BL-42D2-0344 Datasheet - Page 4

• Manufacturer Part Number: BL-42D2-0344
• Description: LED ARRAY WHITE 0.80 SMD
• Manufacturer: LIGHTING SCIENCE GROUP CORPORATION

Specifications of BL-42D2-0344

• Color: White, Cool
• Current - Test: 1.4A
• Luminous Flux @ Current - Test: 120lm
• Current - Max: 1.4A
• Lumens @ Current - Max: 120lm
• Lumens/watt @ Current - Test: 20lm/W
• Voltage - Forward (vf) Typ: 4.3V
• Wavelength: 5500K
• Lens Style/size: Round with Domed Top
• Viewing Angle: 120°
• Mounting Type: Surface Mount
• Package / Case: Round - 0.800" Dia x 0.160" H (20.32mm x 4.06mm)
• Illumination Color: Cool White
• Power Consumption: 5.9 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 521-1026-2

Assembly Recommendations
Lamina's BL Series Light Engines are designed for attachment to a heat sink with conductive epoxy, or screw down for flange mount
devices with thermal grease in the joint. For attachment using screws, a 2-56 UNC round head or metric equivalent M2 0.4 Cheese
Head screw, 18-8 SS is recommended. Maximum torque is 4 inch pounds (45 Newton-centimeter). Flatness requirement of the surface
that light engine is mounted to is 0.001 inch/inch.
Mechanical Specifications
Heat Sink Recommendations
Lamina LED arrays provide efficient transfer of heat from the individual LED die to a customer supplied heat sink. Lamina’s BL-4000
arrays must be operated at or below 125ºC die junction temperature. A heat sink must be attached to the array with sufficient cooling
capacity to keep the die junction below 125ºC. The temperature rise from the array base to the die junction may be determined by
calculating the product of the maximum package thermal resistance and the desired operating power level:
The appropriate heat sink may then be approximated
Lamina has developed a selection of radial heat sinks for rapid prototyping of designs with Lamina’s LED Light Engines. Lamina’s heat
sinks are available through select distributors. More information on Lamina’s heat sinks and distributors is available on our website.
Optics
Lamina has tested and found the following Frean optics (www.Fraen.com) to perform well with Lamina’s BL-4000 light engine:
An optic holder is necessary for mounting the optic. Lamina will be offering a holder in the near future. The standard Fraen FHS series
optic holder is not compatible with Lamina’s LED light source and EZConnect PCB.
Handling Precaution
Contact with the silicone based encapsulant on the surface of the light engine must be avoided to prevent damage. Do not apply
pressure to the silicone based encapsulant or allow it to come into contact with sharp objects. Lamina LED arrays must be handled
from the sides.
about your design, contact Lamina at 800.808.5822 or 609.265.1401 or visit www.laminaceramics.com.
To see how you can realize all these design benefits, to request a sample, or to speak with an engineer
Ø0.750 [Ø19.05]
BOLT CIRCLE
Junction Temperature Rise (Tj (rise)) = Operating Power (P) x (Lamina Array Thermal Resistance)
Heat Sink Thermal Resistance (ºC/W) = (125 ºC - Tj (rise) - Maximum Ambient Temperature) / P
*Approximation assumes light engines are screwed down and thermal grease is used as thermal interface material.
FHS series narrow (8-10 degree) beam optic – FHS-HNB1-LL01-X
FHS series medium (25-30 degree) beam optic – FHS-HMB1-LL01-X
FHS series wide beam (40-45 degree) optic – FHS-HWB1-LL01-x
3X 120°
Specifications subject to change without notice • ©2005 Lamina Ceramics, Inc. • REV. 05.3.05
Lamina Ceramics • 120 Hancock Lane • Westampton, NJ 08060 • USA
Ø0.80 [Ø20.32]
0.160 [4.06] MAX
3X MOUNTING HOLE
FOR 2-56 SCREW
*
by:
Electrical Connections
Apply V-
Voltage Here
Apply V+
Voltage Here
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