Catalog: Thermoelectric Handbook | |
| lapped thermoelectric devices step 1 prepare cold plate and heat sink ... as possible to opposite edges of module 1/8 clearance recommended 1/2 maximum ... grease wakefield engineering type 120 or dow type 340 to module hot side ... compression for a tec assembly is 150 to 300 pounds per square inch of module ... torque coefficient 0.20 as received 0.15 lubricated d nominal screw size 4/40 ... 0.112 6/32 0.138 8/32 0.164 f force lbs in2 in2 module surface ... one hour and retighten if necessary use stainless steel screws fiber insulating shoulder ... washers and steel spring belleville or split lock type ... see sketch in assembly tips caution 1 to ensure good thermal grease ... if one or both surfaces are less than 1/8 inch thick copper or 1/4 inch thick ... | |
| modules to heat exchangers step 1 prepare cold plate and heat sink ... and cleaned heat sink surface to 120 to 130°c 250 to 265°f the module ... should not go above 138°c or the internal solder will reflow ... grease wakefield engineering type 120 or dow type 340 to module top surface ... compression for a tec assembly is 150 to 300 pounds per square inch of module ... torque coefficient 0.20 as received 0.15 lubricated d nominal screw size 4/40 ... 0.112 6/32 0.138 8/32 0.164 f force lbs in2 in2 module surface ... one hour and retighten if necessary use stainless steel screws fiber insulating shoulder ... washers and steel spring belleville or split lock type ... see sketch in assembly tips caution 1 to ensure good thermal grease ... if one or both surfaces are less than 1/8 inch thick copper or 1/4 inch thick ... | |
