SBT-QFN DIRECT MOUNT, SOLDERLESS SOCKET FOR BURN-IN AND TEST APPLICATIONS FEATURES: • Wide temperature range (-55C to +180C) • High current capability (up to 4A) • Excellent signal integrity at high frequencies • Low and stable contact resistance for reliable production yield • Highly compliant to accommodate wide co-planarity variations • Automated probe manufacturing enables low cost and short lead time 17.00 M M 0.3 28.225 DETAIL N SCALE 16 : 1 21.00 21.50 N 13.3 14.7 4.0 2.3 4.00 SECTION M-M 4.6 4.6 19.00 Description: Socket Assembly 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-7028 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: Material <not specified> Finish: Weight: 11.88 STATUS: Released SHEET: 1 OF 4 REV. C ENG: V. Panavala DRAWN BY: V. Panavala SCALE: 2:1 FILE: CBT-QFN-7028 DATE: 10/30/2012 19.00±0.125 Socket Outline Pin placement info. 5.00 (x4) 4.55 2.50 3.00 5.00 (x4) 3.005 1.00 0.50 Typ. P 6.010 8.00 8.00±0.05 (x4) DETAIL P SCALE 6 : 1 4X 8.00±0.05 (x4) 2.20±0.10 THRU ALL 1.55 (x2) thru all 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-7028 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: Material <not specified> Finish: Weight: 11.88 STATUS: Released SHEET: 2 OF 4 REV. C ENG: V. Panavala DRAWN BY: V. Panavala SCALE: 5:1 FILE: CBT-QFN-7028 DATE: 10/30/2012 Ironwood Package Code : QFN44B 7.00±0.08 0.08±0.02 0.38±0.02 0.28±0.03 (x44) 0.13±0.05 0.50 7.00±0.08 4.55 0.73±0.03 (x44) 6.80±0.05 1.40±0.12 5.00 Description: Compatible QFN 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-7028 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: Material <not specified> Finish: Weight: 11.88 STATUS: Released SHEET: 3 OF 4 REV. C ENG: V. Panavala DRAWN BY: V. Panavala SCALE: 8:1 FILE: CBT-QFN-7028 DATE: 10/30/2012 4 16 5 6 8 3 21 17 18 1 11 20 ITEM NO. 1 2 3 4 5 6 7 DESCRIPTION Material Socket Base 12mm snap lid, posts removed Bottom Pogo Guide 0.5mm pitch QFN44A 12mm Plastic Snap Clamshell Socket Lid Clamshell Latch Snap Lid Socket Compression Plate 7x7mm Torsion Spring, 180 0.109" OD, Ccw/Rh Wave Spring 0.375"OD 0.15" ln 100lbs/in PPS PEEK Ceramic filled PPS/Ultem PPS/Ultem 7075-T6 Alumium Alloy Steel Music Wire Steel Music Wire 8 9 10 11 12 13 Dowel Pin, M1.5 X 20mm LG, 18-8 SS PCB QFN44 0.5mm pitch 7mm Top Pogo Guide 0.5mm pitch QFN44A QFN44A IC 7x7mm 0.5mm pitch #0-80 x .25 LG, Flat Head Machine Screw SBT-LGA/QFN Pogo Pin, 0.5mm-0.8mm AISI 347 Annealed Stainless Steel (SS) Material <not specified> Peek FR4 Stainless Steel (18-8) Contact Mtrl: BeCu, Au Plated over Ni 14 15 16 17 18 19 20 21 Dowel Pin, M1.5 X 5mm LG, Hardened Steel Pin Oreintation Guide 0.5mm pitch QFN44 2mm diameter Hinge Pin, 20 mm long Snap ring for 2mm Hinge pin 0.15" OD Socket Head Cap Screw M2 8mm long Backing Plate 5 post IC guide 7x7mm Nut, #0-80 x 3/64", SS AISI 347 Annealed Stainless Steel (SS) Kapton Alloy Steel 16.00 (x4) 15 4.00 (x4) 14 10 13 Stainless Steel (316) 7075-T6 Alumium Alloy Torlon 4203 1023 Carbon Steel Sheet (SS) 4.00 2.00 4.00 12 90° 9 BACKING PLATE 19 Rev Date Initials Description A 10/30/12 VP Original B 02/19/14 DH Changed current rating of pin Changed IC Guide Material from C 02/19/15 DH Ultem to Torlon Description: Socket Specification 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-7028 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: Material <not specified> Finish: Weight: 11.88 M2x0.4 threads STATUS: Released SHEET: 4 OF 4 REV. C ENG: V. Panavala DRAWN BY: V. Panavala SCALE: 2:1 FILE: CBT-QFN-7028 DATE: 10/30/2012