1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 169 vm series variable mount heatsink series ohmite introduces this new versatile heatsink design. this new design can accommodate several different industry packages. this design also lets the customer choose a mounting style using screws or clips for secure mounting to the heatsink. these one of a kind heatsinks are offered in a vertical (free con - vection cooling) or horizontal format (forced convec - tion cooling) to fit customer applications. horizonral mounting style vertical mounting style characteristics heatsink surface area weight length l or surface part number mount (in 2 / mm 2 ) (oz / g) height h (mm) finish vm1-038-1ae vertical vm2-038-1ae horizontal 39.6 / 25,546 1.48 / 42 38.6 anodized vm3-038-1ae universal serie s specif ications (continued) heat dissipation 800 400 600 60 heat dissipated (watts) 40 20 10 0 15 5 10 0 50 30 20 80 1.4 1.6 0.6 0.4 0.2 0 0.8 1.0 1.2 0 200 700 300 500 100 air v elocity (ft./min.) 70 mounting surface te mp. rise above ambient (c) thermal resistance from mounting surface to ambient ( c/watts) heat sink aluminum alloy 6063-t5 or equivalent with either degreased or black anodized finish solder foot cold-rolled steel, per astm a-366 with pure tin over copper strike. rohs compliant. barbed for secure attachment 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
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 170 dimensions (in./mm) ho w to order vm series variable mount heatsink series 0.42" (10.6mm) horizontal configuration vertical configuration 0.98" (25mm) 1.08" (27.5mm) 0.08" (2mm) 1.52" (38.6mm) 1.56" (39.6mm) 2.36" (60.0mm) 1.36" (34.6mm) 0.08" (2.0mm) 1.56" (39.6mm) 1.72" (43.8mm) ?0.105" pth (2.67mm) ?0.105" pth (2.67mm) 0.98" (25.0mm) 2.36" (60.0mm) 0.157" (4.0mm) 1.52" (38.6mm) user defined ?0.142" (3.6mm) 0.091" (2.3mm) 0.138" (3.5mm) 1.52" (38.6mm) 0.73" (18.6mm) 0.42" (10.6mm) horizontal configuration vertical configuration 0.98" (25mm) 1.08" (27.5mm) 0.08" (2mm) 1.52" (38.6mm) 1.56" (39.6mm) 2.36" (60.0mm) 1.36" (34.6mm) 0.08" (2.0mm) 1.56" (39.6mm) 1.72" (43.8mm) ?0.105" pth (2.67mm) ?0.105" pth (2.67mm) 0.98" (25.0mm) 2.36" (60.0mm) 0.157" (4.0mm) 1.52" (38.6mm) user defined ?0.142" (3.6mm) 0.091" (2.3mm) 0.138" (3.5mm) 1.52" (38.6mm) 0.73" (18.6mm) vm1-038-1ae series length (mm) configuration 1 = 1 hole (to-247, to-220) finish a = black anodized v = degreased mount 1 = vertical 2 = horizontal 3 = universal rohs compliant
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