august 6, 2009 datatronic: 28151 highway 74, romoland, ca 92585 tel: 951-928-7700, fax: 951-928-7701 email: ddisales@datatronics.com 499 king?s road, hong kong tel: (852) 2562 3858, (852) 2564 8477 fax: (852) 2565 7214, (852) 2563 1290 all specifications are subj ect to change without notice. 0.60 [0.024] 2.54 [0.100] bottom view 9.20 [0.362] sm503 date 7.20 [0.283] top view front view 5.20 max. [0.204 max.] 2 1 5.90 [0.232] 3 4 schematic 4 3 1 2 7.2 1.2 2.54 5.0 suggested pcb pad layout sm503 series surface mount common mode choke features ? inductance range from 5 h to 4700h ? operating temp. -40c to +85c ? operating voltage: 110v 50hz/60hz ? isolation voltage: 500v min. 50hz/60hz ? differential inductance: 0.2h max. @ 100khz 0.1v ? tinned leads with leaded solder is available (note 3) ? custom inductance values available ? formerly the dr322 series electrical specifications at 25oc part no. turns ratio (2-3) & (1-4) ( ? 1%) inductance ( ? h) @100khz, 0.1v, ? 20% dcr ( ? ) max. (2-3) & (1-4) rated current (a) max. sm503-502 1:1 5 0.11 0.5 sm503-113 1:1 11 0.12 0.5 SM503-253 1:1 25 0.20 0.5 sm503-513 1:1 51 0.30 0.5 sm503-474 1:1 470 0.25 0.5 sm503-105 1:1 1000 0.40 0.5 sm503-475 1:1 4700 0.55 0.2 mechanical outlines notes: 1. all dimensions are shown in millimeters ?mm?[inches ?in?]. 2. general tolerance ? 0.25mm[0.010 in.], unless otherwise specified. 3. for non-rohs parts replace sm prefix with 42- (e.g. sm503-502 becomes 42-503-502) 4. terminal finish is compliant to rohs requi rements. solder in accordance with j-std-020d
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