QUICK LOCKING ACTION UNIFORM HEAT TRANSFER COMPLETE INTERCHANGEABILITY VISUAL INDICATION OF LOCK/UNLOCK Our engineering staff has extensive experience in the The ZIF retainer is a totally self-contained, precision assembly that provides a highly effective thermal interface packaging of ZIF retainers. Modification of standard between the circuit board and cold wall. Board lengths housings, cams and spring configurations for special design between 1- accommodated. applications is frequently possible. We welcome the A ZIF retainer consists of: opportunity of providing you with the assistance needed to (1) an aluminum housing (2) a rod/cam assembly constructed from an aluminum solve all of your thermal management problems. or stainless steel double flat rod extrusion. The ZIF rod assembly is driven by one of three options: pin, hex-head or screwdriver slot The ZIF cam detent design gives added assurance that a (3) a beryllium copper spring PCB will remain securely locked in position even under ZIF retainers are mounted to any flat metal surface (cold extreme vibration and shock levels. Detent action occurs wall). The standard configuration is attached with 4-40 during the final 15 degrees of cam rotation and virtually hardware. However, the retainer housing can be supplied with eliminates any possibility of the cam unlocking under tapped holes for M3x.5 metric hardware, or left undrilled with only index pins for vacuum brazing, dip brazing or epoxy environmental stress. bonding. To Lock To Unlock Housing Cam Shaft Unlocked, Locked, Maximum Zero- Clamping Force Spring Insertion Position Force (ZIF) Position Circuit Board or Thermal Management Frame Coldwall or Mounting Surface Improving the thermal conduc- Clamping pressure is not only essential tivity of circuit board retainers to heat transfer, but also a critical enhances system performance by requirement for retention of PCBs increasing the reliability of electronic under severe shock and vibration. ZIF components and circuit modules. retainers have been subjected to the most Extensive testing of ZIF retainers extreme test conditions specified in in the CTS Engineering Test MIL-STD-810C. Nominal retention Laboratory demonstrates that they force for a circuit board held captive by a pair of ZIF retainers (I/O connector have the best thermal performance excluded) is shown in the graph. of any circuit board retainer available. 16 Z A S 1 1 1 - 062 - 1 5 R * - B B U ZIF Designation Spring Plating U=Unplated B=Black Assembly Option Cadmium N=Nickel A=Assembled K=Kit Mounting Method Rod Plating B=Brazed B=Black Anod. Aluminum Rods S=Screws 4-40 P=Passivated, Steel Rods M=Metric Screws (M3x0.5) Housing Plating Housing Series B=Black Anodize 1=Without Pins U=Unplated 2=With .062x.040 R=Chem. Film Extended Aluminum Index Pins R=Right Hand Part Rod Assembly L=Left Hand Part 2=Pin Drive, Steel Rod Assembly Increments x 2 Ex: 4=1/4 Hex Drive, Aluminum Rod 7=3/16 Hex Drive, Steel Rod S=3/16 Hex Drive, Steel Rod *All assembled ZIFs must have a left or right designation. Any kit with a 1/4 inch hexhead drive must have a left or right designation. Spring Series Visual identification slot painted yellow. 1=Current Design Board Thickness (.005 Max.) B C 6.3mm Visual Identification Slot A.005 6.3mm 7.9mm 12.7mm 12.7mm SCREW MOUNTED SCREW MOUNTED Fig. 1 PARTS ONLY PARTS ONLY (Pin Drive) .04 TYPE 1 HOUSING 3.8mm TYPE 1 HOUSING 9.19m.1mm m 3.2mm 6.3mm -.001 DIA. 6.3mm +.002 Fig. 4 x .125 MDINIA D. ExE P .001 *E (2 PLC ALL PARTS) Hexhead Drive) .125 MIN DEEP *F (2 PLC ALL PARTS) 9.78.25mm Fig. 2 9.78.25mm *G LOCATING PIN HOLES (Screwdriver Slot Drive) HEX W/ PAINTED (LOCATING PIN HOLES) HEX W/ PAINTED 6.3mm 6.3mm INDICATOR K REF *H REF INDICATOR TTYYPPEE 2 2 H HOOUUSSININGG L MAX L MAX 6.3mm *J 1.57 x 1.02mm -A- 1.57 x 1.02mm EXTENDED ALUMINUM *TOLERANCE .005 EXTENDED ALUMINUM INDEX PINS INDEX PINS 5.6mm 1.02mm Fig. 5 .175- ON TYPE 2 5.1mm 4.45-4.95mm HOUSING ONLY BOARD INSERTION DEPTH Fig. 3 ZIF HOUSING DIMENSIONS 4-40 MOUNTING HOLES LENGTH SPRING A NO. OF ROD TYPE .005 B C D DESIGNATION LENGTH E F G H J MNTG.HOLES DESIG. FIG. NO. MATERIAL MAX. SPRING LENGTH 03 1.5 1.50 .75 .50 1.25 2 04 1.5 2.00 1.00 1.00 1.75 2 ZRA1 1 aluminum 6 inches 05 1.5 2.50 1.25 1.50 2.25 2 ZRA2 1 steel 10.5 inches 06 3 3.00 .75 1.5 2.00 1.50 2.75 3 ZRA3 2 steel 4.5 inches 07 3 3.50 1.00 1.5 2.50 1.75 3.25 3 ZRA4 3 aluminum 10.5 inches 08 3 4.00 1.25 1.5 3.00 2.00 3.75 3 ZRA7 4 steel 10.5 inches 09 4.5 4.50 .75 3.0 3.50 2.25 4.25 3 ZRAS 4 steel 10.5 inches 10 4.5 5.00 1.00 3.0 4.00 1.75 3.25 4.75 4 11 4.5 5.50 1.25 3.0 4.50 2.00 3.50 5.25 4 BOARD ZIF circuit board retainers 12 6 6.00 .75 4.5 5.00 2.00 4.00 5.75 4 K REF L MAX THICK 13 6 6.50 1.00 4.5 5.50 2.25 4.25 6.25 4 are available in several standard 14 6 7.00 1.25 4.5 6.00 2.50 4.50 6.75 4 configurations. When ordering .79mm 2.39mm 10.16mm 15 7.5 7.50 2.25 3.0 6.50 2.00 3.75 5.50 7.25 5 standard ZIF assemblies, kits or 16 7.5 8.00 2.50 3.0 7.00 2.00 4.00 6.00 7.25 5 individual components, please 1.27mm 1.90mm 10.16mm 17 7.5 8.50 2.75 3.0 7.50 2.25 4.25 6.25 8.25 5 refer to the ZIF identification 18 9 9.00 3.75 1.5 8.00 2.50 4.50 6.50 8.75 5 number guide shown above. 1.57mm 1.60mm 10.16mm 19 9 9.50 4.00 1.5 8.50 2.00 3.75 5.75 7.50 9.25 6 Custom ZIF retainers will be 20 9 10.00 4.25 1.5 9.00 2.00 4.00 6.00 8.00 9.75 6 2.13mm 1.60mm 10.72mm assigned special part number 21 10.5 10.50 5.25 9.50 2.25 4.25 6.25 8.25 10.25 6 identification. 2.36mm 2.01mm 11.34mm All dimensions are in inches unless otherwise noted. 3.17mm 2.08mm 12.11mm 17