SINK-C40 OHMITE | Alldatasheet
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1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 169 C40 Heat Sink System For TO-247, TO-264 and SOT-227 Packages The C40 Series Heat Sink System (Patent Pending) offers flexible, high performance and compact heat sinks with an exchangeable cam clip system for TO- 247, TO-264 and SOT-227 (clip in development) devices. This powerful heat sink can be thru-hole soldered in single or paired configurations. The paired unit has mounting holes to accomodate a 40mm x 40mm fan. It is the ideal type of heat sink for high power density and small size (1U or 2U) electronic packaging with forced convection. Paired Heat Sink Mounting With a FAN Single Mounting 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 40mm fan with 4 self-tapping M3 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 (in2 / mm2) (oz / g) (mm) C40-058-VE 63.8 / 41,180 2.5/ 71 58 C40-058-AE SerieS SPeCiFiCatiONS consult factory for alternate lengths and clip combinations Fan Flow Rate (cfm) 10 20 300 Thermal Resistance from Case to Ambient per Device (°C/watts) 2.5 1.5 0.5 2 devices 4 devices Heat Dissipation (continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com170 dimeNSiONS HOw tO Order C40 Heat Sink System For TO-247, TO-264 and SOT-227 Packages 4x ø 0.11" pth (2.8mm) 1.72" (43.8mm) 2.52" (64.0mm) 1.26" (32.0mm) 1.82" (46.3mm) 1.18" (29.9mm) 1.37" (34.7mm) 1.82" (46.3mm) 0.79" (20mm) 0.10" (2.5mm) 0.10" (2.6mm) 1.26" (32mm) 0.47" (12mm) 1.18" (29.9mm) 0.58" (14.6mm) L Y X 2x 0.08" (2.0mm) 2x 0.08" (2.0mm) 2x 0.18" (4.06mm) 2x 0.10" (2.5mm) L – 0.16" (0.16mm) L – 0.16" (0.16mm) L Back-to-back Configuration (This configuration can accept a 40x40mm fan) Single Mounting Clip Dimensions LAND PATTERN LAND PATTERN 2x ø 0.11" pth (2.8mm) 6x ø 0.07" pth (1.8mm) L Y X 2x 0.08" (2.0mm) 0.18" (4.06mm) L – 0.16" (0.16mm) 0.43" (11mm) W +0.12" (+3.0mm) W 0.78" (19.8mm) 1.39" REF (35.3mm) "W" NOTE: Due to possible screw torquing on long extrusions, Customer should check for coplanarity prior to final assembly or soldering. Series Length (mm) Finish A = black anodized V = degreased RoHS compliant C40-058-AE Clip series Device type T247 = TO-247 T264 = TO-264 S227 = SOT-227 (in development) Standard configuration RoHS compliant CLA-T247-21E Heatsink Clip