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 12.225 11.09 2.16 4.78 14.50 Description: Socket Spec 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. SBT-QFN-4011 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 4.49 STATUS: Released SHEET: 1 OF 4 REV. B ENG: S. Huang DRAWN BY: S. Huang SCALE: 4:1 FILE: SBT-QFN-4011 Dwg DATE: 11/1/2011 *Note: QFN pattern is not symmetrical with respect to the mounting holes. QGF land pattern is shifted right of center 0.25mm only. 12.225 0.50 pitch 0.25 shift 2.50 (x4) 2.58 center pad 3.40 (x2) 9.725 0.69 pad length 1.00 0.85 non-plated hole (x3) 0.28 pad width Top View 1.00 1.71 non-plated hole (x4) Target PCB Recommendations Total thickness: 1.6mm min. Plating: Gold or Solder finish PCB Pad height: Same or higher than solder mask Description: Recommended 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. SBT-QFN-4011 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 4.49 STATUS: Released SHEET: 2 OF 4 REV. B ENG: S. Huang DRAWN BY: S. Huang SCALE: 6:1 FILE: SBT-QFN-4011 Dwg DATE: 11/1/2011 Ironwood Package Code : QFN24G 4.00 0.50 0.25 2.35 0.40 1.00 Description: QFN Spec 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. SBT-QFN-4011 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 4.49 STATUS: Released SHEET: 3 OF 4 REV. B ENG: S. Huang DRAWN BY: S. Huang SCALE: 20:1 FILE: SBT-QFN-4011 Dwg DATE: 11/1/2011 ITEM NO. 1 2 3 4 4 2 DESCRIPTION Material 7075-T6 Aluminum Alloy 7075-T6, Plate (SS) 7075-T6 (SN) Stainless Steel (18-8) 10 11 Socket base for 4mm IC Socket Lid 7mm Swl Ni plt Compression Plate Compression Screw M6x1 #0-80 X .188" LG FL HD, Slotted, Polypropylene #0-80 Shoulder Screw, 0.062" thread length Dowel pin, 1/32" X 1/4", SS Washer, #0 x .025", Nylon #0-80 X .313 LG, SOC HD CAP SCREW, ALLOY STL, BLK OXIDE IC guide QFN24 4mm sq. QFN24 SBT Top Guide custom 12 Customers Target PCB 13 QFN24 SBT Bottom Guide PEEK Ceramic filled 14 QFN24 IC SBT Pin Orientation Guide for 4 x 4mm, 0.5mm pitch QFN24 SBT-LGA/QFN Pogo Pin, 0.5mm0.8mm Material <not specified> 5 3 6 7 8 14 6 9 1 10 7 16 15 16 15 PP Homopolymer Stainless Steel (303) Stainless Steel (18-8) Nylon 6/6 Alloy Steel Ultem 1000 PEEK Ceramic filled Kapton Polyimide Contact Mtrl: BeCu, Au Plated over Ni Pin A1 location 11 13 5 12 6.5000 3.8500 Compression Plate Top View 8 9 1.0000 1.7500 1.6750 Description: Exploded View Compression Plate Side View 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. SBT-QFN-4011 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 4.49 STATUS: Released Rev Date Initials Description A 11/01/11 SH Original B 02/19/14 DH Changed current rating on pin SHEET: 4 OF 4 REV. B ENG: S. Huang DRAWN BY: S. Huang SCALE: 3:1 FILE: SBT-QFN-4011 Dwg DATE: 11/1/2011