16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 gnd 4.72mm [0.186"] 4.72mm [0.186"] 3.02mm [0.119"] 0.80mm [0.031"] typ. 5.00mm [0.197"] 4.40mm [0.173"] 4.40mm [0.173"] 5.00mm [0.197"] 3.58mm [0.141"] 3.58mm [0.141"] 0.30mm [0.012"] typ. 0.80mm [0.032"] typ. top view bottom view front view 20 1 d e s c r i p t i o n : 20 position mlf surface mount foot 20 position (+1 gnd index pin). 1.0mm pitch uga female receptacles (top) to 20 position, 0.8mm mlf pattern status: released drawing: h. hansen scale: 8:1 rev: a date: 11/21/05 modified: file: SF-QFN20E-L-02 dwg SF-QFN20E-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. substrate: 0.635mm 0.18mm [0.025" 0.007"] per ipc 4101/21, gold surface finish. 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 ? 2005 ironwood electronics, inc. 11351 rupp drive, suite 400, burnsville, mn 55337 tele: (952) 229-8200 www.ironwoodelectronics.com
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