GHz QFN Socket - Direct mount, solderless Features A1 corner 3.00 THRU ALL A • Directly mounts to target PCB (needs tooling holes) with hardware • High speed, reliable Elastomer connection • Minimum real estate required • Compression plate distributes forces evenly • Hinged clamshell socket lid A 25.48 Recommended torque is 4.2 N-cm [6 ozf-in] 30.48 TOP VIEW B 45.68 36.98 15.24 2.15 3.65 7.63 5.24 customer's target PCB 7.25 SIDE VIEW 5.25 B SECTION A-A Description: Clam shell socket for 4.5x12.5mm, 0.4mm pitch QFN74 Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-QFN-7042 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 42.03 25.48 7.88 25.48 SECTION B-B STATUS: Released SHEET: 1 OF 6 REV. A ENG: E. Smolentseva DRAWN BY: M. Raske SCALE: 1.8:1 FILE: CBT-QFN-7042 Dwg DATE: 04/16/2015 *Note: QFN pattern is not symmetrical with respect to the mounting holes. The pattern is shifted to the right of center by 0.25mm. 0.25 2.2625* HINGE Orientation mark 1.5625 15.225±0.050 0.85±0.025 (x2) non plated alignment hole 5.40 10.80 11.20 12.10 28.225±0.125 socket base size 6.05 5.0725±0.025 17.725±0.125 socket base outline 0.40 U 0.25 30.225±0.125 socket lid size LATCH 1.71±0.10 (x4) non plated mounting hole 0.45 DETAIL U SCALE 12 : 1 3.20 7.225±0.050 Target PCB Recommendations Total thickness: 2.4mm min. Plating: Gold or Solder finish 9.975±0.125 socket base outline Max Ht: 13.68mm 11.928±0.125 Max Ht: 3.68mm Max Ht: 2.18mm Description: Recommended PCB Layout Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-QFN-7042 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 42.03 STATUS: Released SHEET: 2 OF 6 REV. A ENG: E. Smolentseva DRAWN BY: M. Raske SCALE: 3:1 FILE: CBT-QFN-7042 Dwg DATE: 04/16/2015 A D B bbb C eee C A B J C ccc C Pin 1 corner E e K eee C A B 74X b ddd M C A B TOP VIEW SIDE VIEW 74X L A1 A3 e BOTTOM VIEW A2 A Ironwood Package Code QFN74A Description: Compatible device Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-QFN-7042 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 42.03 STATUS: Released Dimension A A1 A2 A3 J K L b D E e bbb ccc ddd eee Min 0.8 0 3.15 11.11 0.35 0.15 4.4 12.4 Nom 0.85 0.035 0.65 0.203 REF 3.2 11.2 0.40 0.2 4.5 12.5 0.4 BSC 0.10 0.08 0.1 0.1 Max 0.9 0.05 3.25 11.25 0.45 0.25 4.6 12.6 SHEET: 3 OF 6 REV. A ENG: E. Smolentseva DRAWN BY: M. Raske SCALE: 6:1 FILE: CBT-QFN-7042 Dwg DATE: 04/16/2015 3.08 1.86 1.10 2.15 4.65 3.60 1.84 2.80 Description: Detail VW of Elastom GD cut Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-QFN-7042 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 42.03 STATUS: Released SHEET: 4 OF 6 REV. A ENG: E. Smolentseva DRAWN BY: M. Raske SCALE: 4:1 FILE: CBT-QFN-7042 Dwg DATE: 04/16/2015 Thru hole on compression screw and compression plate T Cutout for air flow on top of IC package cutout on socket base and compression plate to allow air flow DETAIL T SCALE 8 : 1 Description: Compression plate details Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-QFN-7042 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 42.03 STATUS: Released SHEET: 5 OF 6 REV. A ENG: E. Smolentseva DRAWN BY: M. Raske SCALE: 2:1 FILE: CBT-QFN-7042 Dwg DATE: 04/16/2015 4 8 5 6 2 7 12 3 9 11 1 17 19 20 18 16 15 14 10 Description: Socket Detail NO. DESCRIPTION Material 1 Dowel pin, 1/32" X 1/4", SS Stainless Steel (18-8) 2 Clam Shell Socket Lid 10mm IC 7075-T6 Aluminum Alloy 3 Latch 6- 10mm Ni plated 7075-T6 Aluminum Alloy 4 M6x1 fluted knob compression screw 7075-T6 Aluminum Alloy 5 Screw, M3 x 12mm, Low Head Cap, SS 18-8 Stainless Steel 6 Spring Clamshell lid assembly Steel Music Wire 7 Hinge Pin and Snap Ring, 2mm OD, 19mm Stainless Steel (ferritic) long, SS 8 Precision Compression Spring, Zinc-Plated Music Wire, 1/2" Length, .12" OD, .016" Zinc Plated Music Wire Wire 9 Customer's device FR4 Standard 10 #0-80 x 0.5, SH Cap Screw Alloy Steel 11 Clam shell socket base 7075-T6 Aluminum Alloy 12 Compression Plate 7075-T6 Aluminum Alloy 13 #0-80, 90 deg., head pin guide screw, Peek material PEEK unfilled 14 Backing Plate 7075-T6 Alumium Alloy 15 insulating plate FR4 High temp 16 Customer's target PCB FR4 High temp 17 top guide QFN74 0.4mm 4.5x12.5mm Semitron MDS 100 18 Btm guide QFN74 0.4mm 4.5x12.5mm Semitron MDS 100 19 Stamped Pin, 0.4mm SBT-LGA/QFN N/A 20 Floating Guide Spring Alloy Steel (SS) Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-QFN-7042 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 42.03 STATUS: Released SHEET: 6 OF 6 REV. A ENG: E. Smolentseva DRAWN BY: M. Raske SCALE: 1.85:1 FILE: CBT-QFN-7042 Dwg DATE: 04/16/2015