D Series Heatsink For TO-252, TO-263 and TO-268 devices Ohmite D Series heatsinks provide an innovative solution for SMT compatible semiconductors and FeatureS resistors. The unique design (Patent Pending) com- Increased sur face areas by 3 times therefore ther- bines tin plated, solderable rods with an aluminum mal per formance up to 300% over the aluminum extruded heat sink body. These rods (or rollers) stamped heat sinks on markets are mated mechanically to the heatsink by forging to reduce the thermal resistance between the heatsink Light weight aluminum construction allows faster body and the solderable feet. pick and place assembly reducing the manufactur- Specifically designed for use with the increasingly ing cycle time popular TO-252, TO-263 and TO-268 packages, the Radius mounted Rollers are designed for maxi- D Series affords the user superior thermal per for- mizing heat transfer from the component and mance over the more common stamped aluminum avoiding the thermal bottle-neck seen in stamped heatsinks. By eliminating the staking joint typically and staked heatsinks. used in stamped heatsinks, the resulting air gap and Available in bulk packaging or tape & reel (250 thermal bottle-neck is also eliminated, while sur- units per reel face area for cooling is maximized with the extruded fins of the D Series body. RoHS Compliant Heat DiSSipation Air Velocity (ft./min.) Air Velocity (ft./min.) Final thermal per formance 200 400 600 800 1000 200 400 600 800 1000 is highly dependent on the 12 60 50 thermal characteristics of 14 TO-252 (D) 55 TO-268 (D3) the PCB. It is possible to see 45 10 TO-263 (D2) a 50% drop in temp rise in 12 50 o natural convection with a o 101 & 201 101 & 201 8 o 40 thermally improved PCB. o 45 10 40 35 6 8 35 301 30 4 6 301 30 25 4 25 2 264 8 10 264 8 10 Heat Dissipated (watts) Heat Dissipated (watts) DimenSionS 0.012 / 0.30mm TO-252 (D) Style 10 Style 20 Style 30 TO-268 (D3) TO-263 (D2) TO-263 (D2) TO-268 (D3) 1.58 1.39 1.02 1.22 1.02 40.2mm 35.2mm 25.9mm 25.91mm 30.9mm 0.50 0.50 0.50 12.7mm 12.7mm 12.7mm 0.40 0.48 REF 0.46 10.16mm 0.27 12.1mm 11.6mm 0.26 0.26 6.86mm 6.6mm 6.6mm 0.09 0.15 2.3mm TO-268 (D3) TO-263 (D2) 0.10 0.44 (11.2mm) 0.44 3.7mm TO-252 (D) 0.44 2.54mm 0.64 11.1mm 0.56 (14.2mm) TO-263 (D2) 11.2mm 16.2mm 0.2 0.56 0.64 (16.2mm) 14.1mm 0.76 0.56 TO-268 (D3) 0.2mm 19.2mm 0.2 14.2mm 0.76 (19.2mm) (continued) 170 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com Case Temp. Rise above Ambient ( C) Thermal Resistance from Mounting Surface to Ambient ( C/watts) Case Temp. Rise above Ambient (C) Thermal Resistance from Mounting Surface to Ambient ( C/watts)D Series Heatsink For TO-252, TO-263 and TO-268 devices LanD p atternS Land Patterns for D, D2 and D3 TO-252 (D) TO-268 (D3) 0.62 (15.8mm) TO-263 (D2) 0.81 (20.6mm) 0.83 (21.1mm) 0.35 (8.89mm) TO-252 (D) 0.63 (16.0mm) 0.64 (16.3mm) 0.44 (11.2mm) TO-263 (D2) 0.56 0.54 0.56 (14.2mm) (13.7mm) 0.54 (14.2mm) (13.7mm) 0.06 0.03 0.06 0.076 (1.40mm) (0.80mm) TO-252 (D) (1.40mm) (1.94mm) 0.03 TO-263 (D2) (0.80mm) t ape anD reeL orDering inFormation Reel diameter: 13.00 (330.00mm) Style RoHS 200 pcs. per 10, 20 or 30 Compliant K0 P1 P0 DA-T263-201E-TR Series Finish Package Length Tape & Reel D A = black anodized T263 = TO-263 1 = 0.50 V = degreased (or TO-252) 2, 3, 4 = optional lengths S0 W T268 = TO-268 assigned sequentially on customer request Standard part numbers For D Series D0 Part Number Description Packaging Weight DV-T263-101E for D2 pack, degreased Bulk 3.8 g Style 10 Style 20 Style 30 DA-T263-101E for D2 pack, black anodized Bulk 3.8 g D0 1.55mm 1.5mm 1.5mm DV-T263-101E-TR for D2 pack, degreased Reel 3.8 g DA-T263-101E-TR for D2 pack, black anodized Reel 3.8 g K0 10.5mm 12.20mm 11.50mm DV-T268-101E for D3 pack, degreased Bulk 4.1 g P0 4mm 4.0mm 4.0mm DA-T268-101E for D3 pack, black anodized Bulk 4.1 g P1 24mm 24mm 24.0mm DV-T268-101E-TR for D3 pack, degreased Reel 4.1 g DA-T268-101E-TR for D3 pack, black anodized Reel 4.1 g S0 40.4mm 40.4mm 52.4mm DV-T263-201E for D or D2 pack, degreased Bulk W 44mm 44mm 56mm DA-T263-201E for D or D2 pack, black anodized Bulk DV-T263-201E-TR for D or D2 pack, degreased Reel DA-T263-201E-TR for D or D2 pack, black anodized Reel Removable Kapton DV-T268-301E for D3 pack, degreased Bulk tape on each part DA-T268-301E for D3 pack, black anodized Bulk facilitates handling DV-T268-301E-TR for D3 pack, degreased Reel by automatic pick DA-T268-301E-TR for D3 pack, black anodized Reel and place equipment. DV-T263-301E for D2 pack, degreased Bulk Style 10 tape and DA-T263-301E for D2 pack, black anodized Bulk reel only. DV-T263-301E-TR for D2 pack, degreased Reel DA-T263-301E-TR for D2 pack, black anodized Reel 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 171