CP Series Cold Plate Four-pass Heatsink F e at u r e s • Designed for Ohmite products, Pre drilled hole patterns for standard Ohmite planar resistors TAP600/ TAP800 and TAP1K0/TAP2K0. • Design flexibility, Chill Plate lengths can be configured as well as mounting hole patterns to accept a multitude of devices. • Thermally efficient copper mounting surface for the most efficient heat transfer. The Ohmite CP4 series Liquid Coldplates are designed for Ohmite heatsinkable type resistors, such as TAP600, TAP800, TA1K0, TA2K0, and various SOT-227 resistor packages. The CP series also provides maximum heat removal for SCRs, rectifiers, diodes, thyristors, and other high-power semiconductor devices. The CP series is customizable to fit multiple applications. Length and mounting hole patterns can be specified. S ERIE S S P E C I F I C ATI O N S Part Number CP4-114A CP4-114B CP4-114C * @ flow of 1.5 GPM Mounting Surface Area (in2/mm2) 19.13/12339 19.13/12339 19.13/12339 Weight Ohmite Resistor Thermal (oz/g) Series Resistance* (°C/W) 28.4/805 0.018 28.4/805 TAP600/TAP800 0.018 28.4/805 TAP1K0/TAP2K0 0.018 c h a r a c t e r i s t i cs Tubing Copper, 0.375” OD, nominal wall thickness of 0.050” Plate Aluminum 6063-T5 Weight 805 g 2 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] CP Series Cold Plate Four-pass Heatsink H e a t D i ss i p a t i on 0.035 6 0.03 5 0.025 4 0.02 3 0.015 2 0.01 Pressure Drop (psi) Overall Thermal Resistance, Mtg. Surface to Inlet Water (°C/w) a TAP2K0 was used in testing. 1 0.005 0 0 0 0.5 1 1.5 Water Flow Rate (gpm) 2 2.5 d i m e ns i ons CP4A-114A-108E Ø3/8" (2mm) CP4A-114B-108E #8-32 UNC tapped thru-hole (2 places) 4x Ø.265" (6.73mm) 3.0" REF. (76.2mm) 4x Ø.265" (6.73mm) C L 5.450"±.032 (138.4mm) 1.0" REF. (25.4mm) C L 2.24" (56.9mm) 4.250" REF. (108mm) 0.750" REF. (19.1mm) 2.000"±.032 (50.8mm) C L 3.70" (94.0mm) 5.450"±.032 (138.4mm) 6.0" REF. (152.4mm) how to order Four Pass CP4A-114A-108E Cold Plate 3 4x Ø.265" (6.73mm) 2.000"±.032 (50.8mm) 2.000"±.032 (50.8mm) 4.500" REF. (114.3mm) CP4A-114C-108E #8-32 UNC tapped thru-hole (4 places) Length Hole Pattern Width RoHS (mm) A = no holes (mm) Compliant B = TAP600/800 C = TA1K0/TA2K0 (assigned sequentially for custom patterns) 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 3.70" (95.0mm)