B60/C60 Series Heat Sink System Ohmite introduces the powerful B60/ C60 series heatsink with cam clip (Pat. Pending) or custom mounting. This series offers flexible, high performance and compact heat sink with exchange- able cam clip system for TO-247 and TO-264 devices. The built in lip is pro- vided for mounting ease. The optional B series can be tapped for popular Ohmite resistors or other devices. These power- ful heat sinks can be thru-hole soldered as a single or dual unit. The dual unit can be mated to a 60mm fan for greater thermal performance. It is the ideal type of heat sink for high power density and small size (3U or 4U) electronic packag- ing with forced convection. SerieS SPeCiFiCatiONS Heatsink Surface Area Weight Length L 2 2 consult factory for Part Number (in / mm ) (oz / g) (mm) alternate lengths and C60-075-VE 177 / 114,300 5.7 / 163 75 clip combinations C60-075-AE B60-075-VE 177 / 114,300 5.7 / 163 75 B60-075-AE CharaCteriStiCS Heat Sink Aluminum Alloy 6063-T5 or Equivalent with either degreased or black Heat Dissipation anodized finish. 2 Music Wire, Per ASTM A228 with bright nickel plating Spring Clip Solder Foot Cold-rolled Steel, Per ASTM A-366 with pure tin over copper strike. 1.5 4 devices RoHS compliant. o Fan 60mm fan with 4 self-tapping M3.5 screws 1 Interface Thermal For improvement, use thermal joint compound, 0.005 Grafoil (TGon 2 devices Resistance 800 by Laird), or phase change material (Hi-Flow by Bergquist) Insulator (Optional) Sil-Pad 900-S, K6 800-S and K10 by Bergquist 0.5 0 20 30 40 50 Fan Flow Rate (cfm) (continued) 166 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com Thermal Resistance from Case to Ambient per Device (C/watts)0.16 (3.9mm) B60/C60 Series Heat Sink System dimeNSiONS 2.58 2.53 (65.5mm) (64.2mm) 2x 0.079 2.48 2.07 (2mm) 0.079 (63mm) (52.7mm) (2mm) 1.19 * (30.2mm) 2.95 2.79 75.0mm (71.0mm) 2.95 C60 B60 (75.0mm) 2.63 (66.7mm) 2.78 REF (70.7mm) 2.74 REF (69.5mm) 0.31 0.12 (8mm) 1.97 * (3mm) (50mm) 0.12 (3mm) 0.049 (1.25mm) 1.61 0.17 0.17 (41mm) (4.3mm) 1.61 (4.3mm) (41mm) 0.080 1.97 (2.03mm) (50mm) 0.08 0.32 (2mm) (8.1mm) 0.47 (12mm) 6x Clip Dimensions T247 0.63 (16.1mm) 0.07 pth T264 0.80 (20.2mm) (1.8mm) 0.43 W +0.12 (11mm) (+3.0mm) NOTE: Due to pos- L W sible screw torquing LAND L 0.16 PATTERN Y on long extrusions, (0.16mm) Customer should 0.78 check for coplanarity (19.8mm) X prior to final assem- 1.39 REF (35.3mm) bly or soldering. 2x 0.08 2x 0.18 (2.0mm) 0.11 pth (4.06mm) (2.8mm) hOw tO Order Heatsink Clip RoHS compliant CLA-T247-21E C60XX-058-AE Clip series Device type Standard RoHS T247 = TO-247 configuration compliant Series Hole Length Finish T264 = TO-264 pattern (mm) B = without lip A = black anodized (optional) C = with lip V = degreased 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 167