1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 gnd 3.02mm [0.119"] 6.00mm [0.236"] 5.20mm [0.205"] 6.00mm [0.236"] 5.20mm [0.205"] 2.90mm [0.114"] 2.90mm [0.114"] 0.75mm [0.030"] typ. 0.25mm [0.010"] typ. 0.50mm [0.020"] typ. top view bottom view front view gnd 40 1 6.00mm [0.236"] 6.00mm [0.236"] substrate: 0.635mm 0.18mm [0.025" 0.007"] per ipc 4101/21, gold surface finish. d e s c r i p t i o n : 40 position mlf/qfn surface mount foot 40 position (+1 gnd index pin). 0.75mm pitch uga female re ceptacles (top) to 40 positi on, 0.5mm mlf/qfn pattern status: released drawing: h. hansen scale: 8:1 rev: b date: 5/13/06 modified: 7/3/07 file: SF-QFN40A-L-02 dwg SF-QFN40A-L-02 drawing t o l e r a n c e s : diameters 0.03mm [0.001?], pcb perimeters 0.13mm [0.005?], pcb thicknesses 0.18mm [0.007"], pitches (from true position) 0.08mm [0.003"], all other tolerances 0.13mm [0.005?] unless stated otherwise. materials and specifications are subject to change without notice. 1 2 pins: shell material- brass alloy 360 1/2 hard; finish- 0.25m [10"] au over 1.27m [50"] ni (min.). contact material- becu; finish 0.25m [10"] au over 2.54m [100"] ni (min. ). substrate: 1.59mm 0.18mm [0.062" 0.007"] fr4/g10 or equivalent high temp material. non-clad. 3 rohs compliant 1 2 3 ? 2006 ironwood electronics, inc. 11351 rupp drive, suite 400, burnsville, mn 55337 tele: (952) 229-8200 www.ironwo odelectronics.com
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