SDM BOURNS | Alldatasheet

Document overview

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Technical content

Features

■ Double contacts ■ Low contact resistance ■ Self-clean on contact area ■ Vapor phase solderable, IR-reflow solderable ■ Terminal plating by gold gives excellent results when soldering ■ RoHS compliant*

Electrical Characteristics

per switch, 24 VDC, 25 mA Contact Resistance (@ current 100mA) 100 milliohms max. after life test Insulation Resistance adjacent closed switch Environmental Characteristics Mechanical Life..2,000 operations per switch Method 201A perpendicular directions High reliability Method 213B, Condition A 3 times in each direction. High reliability Physical Characteristics Base and Cover Materials ..UL94V-0 PPS plus glass fiber reinforced plus glass fiber reinforced Contact Plating Materials ....3 micro inches gold plating over 40 micro inches nickel IR-reflow soldering can be applied Standard Packaging How to Order SDM R - 2 - T R Model Actuator

  • X = Raised Actuator
  • R = Recessed Actuator Number of Positions
  • 1 = 1 Position • 7 = 7 Positions
  • 2 = 2 Positions • 8 = 8 Positions
  • 3 = 3 Positions • 9 = 9 Positions
  • 4 = 4 Positions • 10 = 10 Positions
  • 5 = 5 Positions • 12 = 12 Positions
  • 6 = 6 Positions Seal
  • X = Standard (Not Sealed)
  • T = Top Tape Sealed (“R” Actuator only) Packaging Option (Top Sealed, Recessed only)
  • R = Tape and Reel Packaging (900 pcs./reel) B±0.10=2.54X(P-1) (B±.004=.10X(P-1)) SDM Series A + 0.2 / - 0 (A + .008/-0) 0.50 (.020) 2.0 (.079) 6.20 + 0.2 / -0 (.244 = .008/-0) B 1.74 (.069) 2.54 (.100) TYP. 3.0 + 0.10 / -0 (.118 + .004/-0) 0.70 (.300 ± .010) 9.80 ± 0.3 (.386 ± .012) 0.7 ± 0.2 (.028 ± .088) 0°~4° 1.0 (.039) 0.70 (.028) RECOMMENDED PCB LAYOUT SDMR SERIES SDMX SERIES 7.40 (.291) 10.4 (.409) 2.54 (.100) TYP. 1.1 (.043) SCHEMATIC (TYP.) 1,2,3,4,5,6,7,8,9,10 POSITIONS AVAILABLE MODEL NO. POSITIONS DIM. A DIM. B SDM-12 12 31.42 27.94 SDM-10 10 26.34 22.86 SDM-8 8 21.26 17.78 SDM-6 6 16.18 12.70 SDM-4 4 11.10 7.62 SDM-2 2 6.02 2.54 SCHEMATIC (TYP.) 1,2,3,4,5,6,7,8,9,10,12 POSITIONS AVAILABLE 2.00 ± 0.25 (.079 ± .010) DIA. DIA. 1.55 ± 0.05 (.061 ± .002) 16.00 ± 0.1 (.630 ± .004) 4.00 ± 0.1 (.157 ± .004) 2.00 ± 0.15 (.079 ± .006) POLE TAPE SIZE (W) 2,3 16 mm 4,5,6 24 mm 7,8 32 mm 9,10,12 44 mm Packaging SpecificationsProduct Dimensions DIMENSIONS: MM (IN) Reflow Soldering ProfileTemperature (°C) Time (Seconds) 275 30-40 Sec. 120 °C 225 175 125 250 20 40 60 80 100 120 140 160 180 200 80-90 Sec. 10-15 Sec. 35-60 Sec. 180 °C 240 °C REV. 02/06 *RoHS COMPLIANT The SDM Series is currently available, although not recommended for new designs.