HS-4075-0345 LIGHTING SCIENCE GROUP CORPORATION, HS-4075-0345 Datasheet - Page 3

• Manufacturer Part Number: HS-4075-0345
• Description: HEATSINK .75" FOR BL-2000/4000
• Manufacturer: LIGHTING SCIENCE GROUP CORPORATION
• Series: ThermaCool™r
• Type: Heat Sinkr

Specifications of HS-4075-0345

• Shape: Round
• Product: Heatsinks
• Designed For: LEDs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 521-1029-1 - LED ARRAY WHITE 3000K 700MA521-1029-2 - LED ARRAY WHITE 3000K 700MA521-1027-1 - LED ARRAY RGB 0.57 X 0.555 SMD521-1026-1 - LED ARRAY WHITE 0.80 SMD521-1027-2 - LED ARRAY RGB 0.57 X 0.555 SMD521-1026-2 - LED ARRAY WHITE 0.80 SMD521-1018-2 - LED ARRAY WHITE .80 SMD521-1017-2 - LED ARRAY RD/GN/BL .80 SMD521-1018-1 - LED ARRAY WHITE .80 SMD521-1017-1 - LED ARRAY RD/GN/BL .80 SMD521-1012 - LED ARRAY WHITE .56 X .56" SMD521-1005 - LED ARRAY WHITE .56 X .56 SMD521-1004 - LED ARRAY GREEN .56 X .56 SMD521-1003 - LED ARRAY BLUE .56 X .56 SMD521-1002 - LED ARRAY RD/GRN/BLU .56X.56 SMD521-1001 - LED ARRAY AMBER .56 X .56 SMD521-1000 - LED ARRAY RED .56 X .56 SMD
• For Use With/related Products: BL-2000, BL-4000 Series Light Engine
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 800-0345-2

Lamina’s BL-2000 / BL-4000 heat sinks come in four different thicknesses (“A” Dimension), from 0.5” (13mm) to 1.5”(38mm) thick.
Table 1 lists the applicable sizes for Lamina’s standard BL-2000 and BL-4000 products.
Table 1: BL-2000 and BL-4000 Applicable heat sinks
BL-2000 and BL-4000 Heat Sink Performance
The heat sink thermal resistance and temperature rise over ambient temperature for the desired input power (Power Dissipated) can be
determined using the charts below.
Thermal Resistance
The LED junction temperature is then determined by the following formula:
The thermal interface temperature rise is minimal for most common operating conditions when Lamina’s LED light sources are screwed
down and thermal grease is used as the thermal interface material. Be sure to select a heat sink that maintains desired LED die
junction temperature, and does not exceed maximum rated temperatures. The maximum rated LED die junction temperatures can be
found on the respective Product Data Sheets.
Heat Sink Part Number
about your design, contact Lamina at 800.808.5822 or 609.265.1401 or visit www.laminaceramics.com.
16
14
12
10
8
6
4
2
0
To see how you can realize all these design benefits, to request a sample, or to speak with an engineer
0
Technical Data
Note:
Tj
800-0345-3
800-0345-2
800-0345-1
800-0345-5
(LED Junction)
2.5
Applicable heat sinks when operated at rated LED light source power, 25°C ambient and unrestricted convection.
Lamina BL-2000 & BL-4000 Heat Sink Performance
Thermal Resistance vs Power Dissipated - Natural Convection
5
= T
7.5
Power Dissipated (Watts)
Light Engine Rise
10
0.5" (1.27cm)
0.75" (1.9cm)
1.0" (2.54cm)
1.5" (3.81cm)
Dimension
12.5
+ T
“A”
Interface Rise
"A" Dimension: 0.5" (1.27cm)
"A" Dimension: 0.75" (1.9cm)
"A" Dimension: 1.0" (2.54cm)
"A" Dimension: 1.5" (3.81cm)
15
17.5
+ T
RGB, RGB+, Blue,
BL-2000 White,
Heat sink Rise
20
Green
X
X
X
X
+ T
Temperature Rise Over Ambient
Ambient
120
100
80
60
40
20
0
0
2.5
Temperature Rise Over Ambient vs Power Dissipated - Natural Convection
BL-2000 Red,
Lamina BL-2000 & BL-4000 Heat Sink Performance
Amber
5
NA
NA
X
X
7.5
Power Dissipated (Watts)
10
BL-4000 White, Red,
Amber, Blue, Green,
12.5
RGB+
15
"A" Dimension: 0.5" (1.27cm)
"A" Dimension: 0.75" (1.9cm)
"A" Dimension: 1.0" (2.54cm)
"A" Dimension: 1.5" (3.81cm)
X
X
X
X
17.5
20
3