Features ■ ■ ■ ■ ■ Applications 8,10 or 16 position coded switch Miniature industrial switch multi-position Vertical adjust Rugged surface mount design Rugged lead frame construction Signal/circuit select ■ Board address ■ Test equipment ■ 7743 SMD 7 mm Square Sealed Coded Switch Electrical Characteristics Contact Rating Maximum Current ...........100 mA max. Maximum Voltage .........................16 V Contact Resistance ..............................100 milliohms max. Insulation Resistance .....1000 megohms Dielectric Strength ....................250 volts General Characteristics Switch Type ..................................Binary Operating Temperature Range ................................-55 °C to +125 °C Storage Temperature Range ................................-55 °C to +125 °C Seal Test .......................85 °C Fluorinert* Mechanical Characteristics Positions ................................8, 10 or 16 Adjustment Detent Torque ....................................... 0.2-2.0 N-cm Environmental Characteristics Shock ............................................100 G 0.1 ms. max. discontinuity Vibration ..........................................30 G 0.1 ms. max. discontinuity Thermal Shock (5 cycles) ................................-55 °C to +125 °C Contact Resistance .............................100 milliohms max. Humidity Insulation Resistance ................................10 megohms min. Contact Resistance ..............................100 milliohms max. Actuation Life .......................1,000 steps Contact Resistance ..............................100 milliohms max. Maximum Soldering Heat ...........245 °C, .............................................5 seconds Standard Packaging Tube ......................J, G = 50 pcs./tube H = 100 pcs./tube Tape & Reel .....................250 pcs./reel Product Dimensions 7743G 7743J 7.16 (.282) 7.16 (.282) 1 C 3.38 (.133) 2 7.01 (.276) 8 1 7.24 (.285) 1.07 TYP (.042) 2 0.51 (.020) 4 2.54 TYP (.10) 0.38 ± 0.10 (.015 ± .004) 4 8 2.54 TYP (.10) 0.51 (.020) 2.79 (.110) 0.51 TYP (.020) 2.79 (.110) 0.51 TYP (.020) RECOMMENDED PCB LAYOUT 2.54 (.10) RECOMMENDED PCB LAYOUT 5.08 (.200) 5.08 (.200) 2.03 TYP (.080) 2.54 (.10) 5.99 ± 0.25 (.236 ± .010) 8.31 ± 0.25 (.327 ± .010) 0.76 TYP (.030) 0.76 TYP (.030) 7743H 7.16 (.282) 1 C 5.08 (.200) 2 7.01 (.276) 3.18 (.125) 8.56 +0.20/ -0.31 (.337 +.008/ -.012) 0.20 (.007) 4 8 7743 J - 1 - 008 E 2.54 TYP (.10) 0.38 ± 0.10 (.015 ± .004) RECOMMENDED PCB LAYOUT 0.51 (.020) Terminal 2.54 TYP. (.100) Switch Type 1 = Standard Number of Positions 008 = Binary coded octal 010 = Binary coded decimal 016 = Binary coded hexadecimal Embossed Tape Option (Omit letter for tube) Specifications are subject to change without notice. 7.24 (.285) 0.51 TYP (.020) 3.38 (.133) 9.37 (.369) 7.01 (.276) How to Order Model C 2.79 (.110) TOLERANCES: ±.2 EXCEPT WHERE NOTED. MM DIMENSIONS: (IN) "OFF" POSITION IS COMMON. 0.76 TYP. (.030) 2.03 TYP (.080) 7743 SMD 7 mm Square Sealed Coded Switch Binary (REAL) Code Packaging Specifications 7743 J&G 7743 J .40 MAX. (.016) 3.60 ± .10 (.141 ± .004) 8.03 (.316) 4.09 (.161) 0.51 (.020) 7.50 ± 0.5 (.295 ± .020) 1.5 + .10/ –.00 DIA. (.059 + .004.–.00) 2.54 (.10) 7.60 ± .10 (.299 ± .004) 4.00 ± .10 (.157 ± .004) 8 POSITIONS (Binary Coded Octal) 10.16 (.40) 0.64 (.025) 2.31 (.091) R 0.51 TYP. TUBE LENGTH - 384MM. UNITS PACKAGED 50 PIECES PER TUBE. 7.40 ± .10 (.291 ± .004) 2.00 ± .05 (.079 ± .002) 12.00 ± .20 (.472 ± .007) 10.16 (.40) 8.03 (.316) 4.09 (.161) 0.51 (.020) 1.75 ± .10 (.069 ± .004) 2.54 (.10) 16.00 ± .30 (.630 ± .012) 1.78 ± .254 (.070 ± .010) EQUAL SPACED 3 PLCS. 21.01 ± .787 (.827 ± .031) DIA. 2.67 ± .254 (.105 ± .010) 13.0 ± .508 (.512 ± .020) DIA. 7743 H 8.18 ± .254 (.322 ± .010) 59.18 ± 2 (2.330 ± .079) REEL 16.4 + 2.01/ -.000 (.645 + .079/-.000) Meets EIA 481 Reflow Soldering Profile 4 X X X X X X 12.7 ± .254 (.500 ± .010) 3.81 (.150) 1 0 1 2 3 4 5 6 7 8 9 X X X X X X C X X X X X X X X 3.68 ± .254 (.145 ± .010) TUBE LENGTH - 525MM. UNITS PACKAGED 100 PIECES PER TUBE. 2 4 8 X X X X X X X X X X X X X X X S NC NC NC NC NC NC NC NC C X X X X X X X X X X 16 POSITIONS (Binary Coded Hexadecimal) 1 .51 ± .127 (.020 ± .005) 180.0 ± 5 DIA. (7.087 ± .197) 2.31 (.091) R 0.51 TYP. TUBE LENGTH - 384MM. UNITS PACKAGED 50 PIECES PER TUBE. TAPE 2 10 POSITIONS (Binary Coded Decimal) 7743 G 0.64 (.025) 1 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 A B C D E F 2 4 8 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X C X X X X X X X X X X X X X X X X 275 240 °C Temperature (°C) 225 175 10-15 Sec. 80-90 Sec. 125 120 °C 75 30-40 Sec. 25 X = Connection 180 °C 0 20 40 60 35-60 Sec. 80 100 120 140 160 180 200 Time (Seconds) REV. 10/02 Specifications are subject to change without notice.