1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 2 cp series cold plate four-pass heatsink characteristics serie s specific ations the ohmite cp4 series liquid coldplates are designed for ohmite heatsinkable type resistors, such as tap600, tap800, ta1k0, ta2k0, and vari - ous sot-227 resistor packages. the cp series also provides maximum heat removal for scrs, rectifiers, diodes, thyristors, and other high-power semicon - ductor devices. the cp series is customizable to fit multiple applications. length and mounting hole pat - terns can be specified. tubing copper, 0.375 od, nominal wall thickness of 0.050 plate aluminum 6063-t5 weight 805 g mounting surface weight ohmite resistor thermal part number area (in 2 /mm 2 ) (oz/g) series resistance* (c/w) cp4-114a 19.13/12339 28.4/805 0.018 CP4-114B 19.13/12339 28.4/805 tap600/tap800 0.018 cp4-114c 19.13/12339 28.4/805 tap1k0/tap2k0 0.018 * @ flow of 1.5 gpm feature s ? designed for ohmite products, pre drilled hole pat- terns for standard ohmite planar resistors tap600/ tap800 and tap1k0/tap2k0. ? design flexibility, chill plate lengths can be config- ured as well as mounting hole patterns to accept a multitude of devices. ? thermally efficient copper mounting surface for the most efficient heat transfer.
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 3 h eat dissip ati on a tap2k0 was used in testing. cp series cold plate four-pass heatsink dimensions ho w to order water flow rate (gpm) 0 0.5 0 1 2 1.5 2 1 2.5 4 6 5 3 0.025 0.015 0.005 0 0.02 0.01 0.03 0.035 overall thermal resistance, mtg. surface to inlet water (c/w) pressure drop (psi) 2.000".032 (50.8mm) 2.000".032 (50.8mm) 2.24" (56.9mm) #8-32 unc tapped thru-hole (2 places) cp4a-114a-108e cp4a-114b-108e cp4a-114c-108e c l 3.70" (95.0mm) 3.70" (94.0mm) 5.450".032 (138.4mm) #8-32 unc tapped thru-hole (4 places) c l 6.0" ref. (152.4mm) 0.750" ref. (19.1mm) 4.500" ref. (114.3mm) 3.0" ref. (76.2mm) 2.000".032 (50.8mm) 5.450".032 (138.4mm) 4x ? .265" (6.73mm) 4x ? .265" (6.73mm) 4x ? .265" (6.73mm) 1.0" ref. (25.4mm) ? 3/8" (2mm) c l 4.250" ref. (108mm) cp4a-114a-108e cold plate four pass rohs compliant length (mm) hole pattern a = no holes b = tap600/800 c = ta1k0/ta2k0 (assigned sequentially for custom patterns) width (mm)
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