426B WAKEFIELDTHERMAL | Alldatasheet

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Technical content

RECOMMENDED GAP: .300 + PCB THICKNESS * HEAT FRAME * EJECTOR * THERMAL SPACER 426B WEDGELOCK COLD WALL DRIVE SCREW FRONT WEDGE CENTER WEDGE REAR WEDGE WITH PEM .270 MAX .125 ASSY LENGTH [LLL] (SEE LENGTH TABLE SHEET 2) .20 VIEW OF ASSEMBLY - RELAXED .225 .260 .325 EXPANDED MIN 0.70 MAX SCREW ADVANCEMENT (.240 MAX WITH 'V' OPTION) VIEW OF ASSEMBLY - EXPANDED SEE PART DETAIL

FEATURES

DESIGNED FOR HEAVY SHOCK AND VIBRATION.• UNIFORM CLAMPING FORCE AND HIGH THERMAL TRANSFER.• NARROW WIDTH FOR MAXIMUM PCB COMPONENT AREA.• LIGHT WEIGHT = ASSEMBLY LENGTH X .096 OZ [2.72 G] OR [1.07 G/CM]• SPECIAL LENGTHS, FINISH, AND OTHER DESIGN OPTIONS AVAILABLE UPON REQUEST.• MATERIAL WEDGES: ALUMINUM 6061-T6. ALL OTHER HARDWARE: STAINLESS STEEL, PASSIVATED. PARTS ARE SHIPPED AS COMPLETE ASSEMBLY EXCEPT FOR RIVET MOUNT OPTION (SEE SHEET 2) RECOMMENDED DRIVE SCREW TORQUE IS 6 IN-LBS (68 N-CM) * CONTACT WAKEFIELD FOR COMPLETE HEATFRAME ASSEMBLY OR OTHER COMPONENT ITEMS SEE FINISH TABLE X.XX 0.010" X.XXX 0.005" ANGULAR 1 MACHINED SURFACES D C B AA B C D 1MODEL_INFO: 426B-480SSX-00345678 8 7 6 5 4 3 2 1 SHEET 1 OF 2SCALE 1:1 CAGE CODE: REVDWG NO.SIZE 426B-DSB TITLE: 426B WEDGELOCK DATASHEET .260 X .225

2910 INDUSTRIAL DRIVE, RALEIGH, NC 27609

TOLERANCES PER: ASME Y14.5M- 1994 MATERIAL: FINISH: NAME DATE DRAWN CHECKED ENG APPR. MFG APPR. Q.A. CAD GENERATED DRAWING TSF 10/1/2021 10/1/2021 21A THIS DOCUMENT, IN ITS ENTIRETY, CONTAINS INFORMATION WHICH IS CONFIDENTIAL AND PROPRIETARY TO WAKEFIELD THERMAL. DOCUMENTS MARKED WITH PROPRIETARY ARE NOT TO BE USED, DUPLICATED OR DISCLOSED WITHOUT PRIOR WRITTEN PERMISSION OF AN OFFICER OR DULY AUTHORIZED REPRESENTATIVE OF WAKEFIELD THERMAL OR AS MAY BE PROVIDED IN A WRITTEN NON-DISCLOSURE AGREEMENT BETWEEN THE PARTIES. 3E7U8 TOLERANCES UNLESS OTHERWISE SPECIFIED:

.34 .225 .225 .10 .25 MIN 3/32 OR M2.5 ACROSS FLATS X/2 ('C' OPTION) X ASSY LENGTH (L.LL) .125 (ADD .06 IF 'W' OPTION INCLUDED) .20 (ADD .10 IF 'N' OR 'A' OPTION INCLUDED) .95 BOTTOM VIEW ADD 'V' FOR OPTIONAL VISUAL INDICATOR ADD 'P' FOR OPTIONAL LOCK PATCH OPTIONAL LOCK NUT ADD 'A' FOR MS21043-04 SILVER PLATED A286 SS ADD 'N' FOR MS21042-04 CADMIUM PLATED STEEL ADD 'C' FOR OPTIONAL CENTER MOUNTING HOLE FINISH (SEE FINISH TABLE) MOUNTING HOLE (SEE MOUNTING TABLE) ASSY LENGTH (SEE LENGTH TABLE) SERIES PN PART NUMBER CODE 426B-[LLL][H][D][F] - [C][W][N][P][V] DRIVE SCREW 'M' FOR M2.5 HEX 'S' FOR 3/32 HEX NOTES: SHIP AS COMPLETE ASSEMBLY IN RELAXED STATE1 (IF RIVET MOUNTING OPTION IS SELECTED, SHIP UNASSEMBLED) 'W' OPTION LOCK AND FLAT WASHER 'P' OPTION NYLON PATCH PER MIL-F-18240 PROVIDES ADDITIONAL RESISTANCE TO SHOCK AND VIBRATION 'V' OPTION VISUALLY CONFIRMS LOCKED IN PLACE WHEN RED SCREW HEAD IS CONCEALED PART DEFINITION (REQUIRED) PART NUMBER OPTIONS (NOT REQUIRED) ADD 'W' FOR OPTIONAL LOCK AND FLAT WASHER 'A' OR 'N' OPTION PREVENTS DISASSEMBLY OF REAR WEDGE FROM SCREW EXAMPLE 426B-480UMG-CP 426B WEDGELOCK ASSEMBLY 4.80" LENGTH, M2 MTG, M2.5 SOCKET HEAD, GOLD CHROMATE CENTER MTG HOLE, LOCK PATCH [F] FINISH TABLE DASH NO DESCRIPTION A NO FINISH G CHROMATE PER MIL-DTL-5541, CLASS 1A, TYPE I (GOLD) T TRIVALENT CHROMATE PER MIL- DTL-5541, CLASS 1A, TYPE II (CLEAR), RoHS COMPLIANT B BLACK ANODIZE PER MIL-A-8625, TYPE II, CLASS 2 H HARD BLACK ANODIZE PER MIL-A-8625, TYPE III, CLASS 2 D HARD BLACK ANODIZE PER MIL-A-8625, TYPE III, CLASS 2 WITH DRY FILM LUBE PER MIL-L-46010 E ELECTROLESS NICKEL PER MIL-C-26074, CLASS 4, GRADE B, BRIGHT *N NADCAP COMPLIANT (EX: 'BN' - BLACK ANODIZE, NADCAP) [LLL] LENGTH TABLE ASSY LENGTH [LLL] [H] MTG X [C] OPITON X/2 280 0.900 0.450 330 1.400 0.700 380 1.900 0.950 430 2.400 1.200 480 2.900 1.450 530 3.400 1.700 580 3.900 1.950 OTHER LENGTHS AVAILABLE UPON REQUEST [H] MOUNTING TABLE DASH NO DESCRIPTION A NO MOUNTING HOLES R 0.068/0.073 THRU .156 X .20

0.140 X 100

T #0-80 UNF-2B THREADS S #2-56 UNC-2B THREADS U M2 X 0.4 - 6H THREADS M M2.5 X 0.45 - 6H THREADS THREAD DEPTH ~0.50" THRU D C B AA B C D 1MODEL_INFO: 426B-480SSX-00345678 8 7 6 5 4 3 2 1 SHEET 2 OF 2SCALE 1:1 CAGE CODE: REVDWG NO.SIZE 426B-DSB 21A 3E7U8 THIS DOCUMENT, IN ITS ENTIRETY, CONTAINS INFORMATION WHICH IS CONFIDENTIAL AND PROPRIETARY TO WAKEFIELD THERMAL. DOCUMENTS MARKED WITH PROPRIETARY ARE NOT TO BE USED, DUPLICATED OR DISCLOSED WITHOUT PRIOR WRITTEN PERMISSION OF AN OFFICER OR DULY AUTHORIZED REPRESENTATIVE OF WAKEFIELD THERMAL OR AS MAY BE PROVIDED IN A WRITTEN NON-DISCLOSURE AGREEMENT BETWEEN THE PARTIES.