1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 166 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. characteristics heat sink aluminum alloy 6063-t5 or equivalent with either degreased or black anodized finish. spring clip music wire, per astm a228 with bright nickel plating solder foot cold-rolled steel, per astm a-366 with pure tin over copper strike. rohs compliant. fan 60mm fan with 4 self-tapping m3.5 screws interface thermal resistance for improvement, use thermal joint compound, 0.005 grafoil (tgon 800 by laird), or phase change material (hi-flow by bergquist) insulator (optional) sil-pad 900-s, k6 800-s and k10 by bergquist heatsink surface area weight length l part number (in 2 / mm 2 ) (oz / g) (mm) c60-075-ve 177 / 114,300 5.7 / 163 75 c60-075-ae b60-075-ve 177 / 114,300 5.7 / 163 75 b60-075-ae serie s specific ations consult factory for alternate lengths and clip combinations fan flow rate (cfm) 30 40 50 20 thermal resistance from case to ambient per device (oc/watts) 0 1.5 2 1 0.5 2 devices 4 devices heat dissipation (continued)
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 167 dimensions ho w to order b60/c60 series heat sink system 0.079" (2mm) 0.12" (3mm) 0.08" (2mm) 0.17" (4.3mm) 1.19"* (30.2mm) 1.97"* (50mm) 0.16" (3.9mm) 0.31" (8mm) 0.47" (12mm) 1.61 (41mm) 2.48" (63mm) 2.58" (65.5mm) 2.95" (75.0mm) 1.97" (50mm) 2.79" (71.0mm) 2x 0.079" (2mm) 0.049" (1.25mm) 0.12" (3mm) 0.32" (8.1mm) 2.95" 75.0mm 1.61" (41mm) 2.63" (66.7mm) 2.53" (64.2mm) 2.07" (52.7mm) 0.17" (4.3mm) 0.080" (2.03mm) 2.78" ref (70.7mm) 2.74" ref (69.5mm) land pattern 2x ? 0.11" pth (2.8mm) 6x ? 0.07" pth (1.8mm) 2x 0.08" (2.0mm) 0.18" (4.06mm) l ? 0.16" (0.16mm) clip dimensions c60 b60 0.43" (11mm) w +0.12" (+3.0mm) w 0.78" (19.8mm) 1.39" ref (35.3mm) "w" t247 0.63" (16.1mm) t264 0.80" (20.2mm) l x y note: due to pos - sible screw torquing on long extrusions, customer should check for coplanarity prior to final assem - bly or soldering. c60xx-058-ae series b = without lip c = with lip length (mm) hole pattern (optional) finish a = black anodized v = degreased rohs compliant clip series device type t247 = to-247 t264 = to-264 standard configuration rohs compliant cla-t247-21e heatsink clip
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