S Series LED Heatsinks H Ohmite S Series LED Heatsinks are low cost and easy assembly heat sinks for “Star” LED packages supplied by Cree, Lumileds, Osram and others. This simple heat sink can hold LED modules and can be mounted simply with some thread forming screws. The heat sink has two types of surface finish and can be used in either natural (free) or forced convection cooling applications. Ø 2.75" (69.8mm) Ø 1.00" (25.4mm) Ø 0.75" (19.0mm) #1/4 screw (4) #10 screw (6) S pec i f i cat i o ns H Height (in/mm) Surface Area (in2/mm 2) Weight (oz/g) 0.50 / 12.7 18 / 11,739 0.077 / 35 1.00 / 25.4 36 / 23,478 0.154 / 70 2.00 / 50.8 72 / 46,956 0.308 / 140 3.00 / 76.2 108 / 70,434 0.462 / 210 S tandard p art n u m b ers F or s S eries Part Number Description Packaging SV-LED-113E SA-LED-113E Degreased, 12.7mm Black Anodized, 12.7mm Bulk Bulk SV-LED-125E SA-LED-125E Degreased, 25.4mm Black Anodized, 25.4mm Bulk Bulk SV-LED-151E SA-LED-151E Degreased, 50.8mm Black Anodized, 50.8mm Bulk Bulk SV-LED-176E SA-LED-176E Degreased, 76.2mm Black Anodized, 76.2mm Bulk Bulk O R D E R I N G I N F O R M AT I O N RoHS Compliant SV-LED-113E Series Coating A = black anodized V = degreased Height Heat Sink: Aluminum Alloy 6063T5 or Equivalent with either degreased or black anodized finish. Mounting Hardware: 1/4, #10, and #4 thread forming SS screws are preferred Compliance: Either degreased or black anodized finished parts are RoHS compliant. Thermal Resistance (°C/W) Free conv. Forced conv. 6.67 4.33 5.33 5.33 2.88 4.27 4.00 1.89 3.20 3.11 1.55 2.49 H eat D i ss i pat i o n Mounting Surf. Temp. Rise above Ambient (°C) Heatsink Part Number SV-LED-113E SA-LED-113E SV-LED-125E SA-LED-125E SV-LED-151E SA-LED-151E SV-LED-176E SA-LED-176E 100 0 200 Air Velocity (ft./min.) 400 600 800 1000 5 113 80 60 125 40 113 4 125 3 151 2 151 176 176 1 20 Thermal Resistance from Mounting Surface to Ambient (°C/watts) #4 screw (6) 0 0 0 3 6 9 Heat Dissipated (watts) 12 15 Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 1