Package Information SAW Type 33-pin (4mm×4mm) QFN Outline Dimensions 33 Symbol Dimensions in inch Min. Nom. Max. A 0.028 0.030 0.031 A1 0.000 0.001 0.002 A3 — 0.008 BSC — b 0.006 0.008 0.010 D — 0.157 BSC — E — 0.157 BSC — e — 0.016 BSC — D2 0.104 0.106 0.108 E2 0.104 0.106 0.108 L 0.014 0.016 0.018 K 0.008 — — Symbol Dimensions in mm Min. Nom. Max. A 0.700 0.750 0.800 A1 0.000 0.020 0.050 A3 — 0.203 BSC — b 0.150 0.200 0.250 D — 4.000 BSC — E — 4.000 BSC — e — 0.400 BSC — D2 2.650 2.700 2.750 E2 2.650 2.700 2.750 L 0.350 0.400 0.450 K 0.200 — — http://www.holtek.com.tw/pdf/guide.pdf March 17, 2016