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| PL IA Features Super-thin 4.5 mm square SMD Two different operating forces 0.55 mm height without knob Compatible with surface mount reflow soldering processes RoHS compliant* *R oH S CO Model STJN-4 is currently available, although not recommended for new designs. M NT STJN-4 SMD Super-Thin Tact Switch Electrical Characteristics Max. Power Rating 12 VDC max., 20 mA Contact Resistance ...............................100 milliohms max. Insulation Resistance ................50 megohms min., 100 VDC Dielectric Strength ...........................AC 100 V for 1 minute Bounce On .........................................3 ms max. Off.......................................10 ms max. Circuit ....................................N.O. SPST Mechanical Characteristics Mechanical Life .........50,000 cycles min. Actuation Force ..................160 gf 50 gf (1.6 N 0.5 N) .................240 gf 60 gf (2.4 N 0.6 N) Stroke ..........................0.2 mm 0.1 mm General Characteristics Temperature (C) How to Order Product Dimensions STJ N - 4 05 - N TR Model Thin SMD Tact Switch Product Code N = Non-washable Size 4 = 4.5 mm Height 05 = 0.55 mm (without knob) Actuating Force N = 160 gf (1.6 N) P = 240 gf (2.4 N) Packaging TR = Embossed Tape 10,000 pcs./reel 2.6 4.5 (.177) (.102) 4.3 (.169) 0.6 (.024) 1 4.50 + 0.25 / - 0.15 (.177 + .010 / - 0.06) 4.3 (.169) 2.8 (.110) 2 3 4 Reflow Soldering Profile 275 225 175 125 120 C 75 30-40 Sec. 25 0 20 40 60 10-15 Sec. 80-90 Sec. 35-60 Sec. 240 C 180 C 0.55 + 0.15 / - 0.10 (.022 + .006 / - .004) 0.45 + 0.15 / -0.10 (.018 + .006 / - .004) 0.35 (.014) Switch Type .........................(N.O.) SPST Operating Temperature Range ....................................-20 C to +70 C Storage Temperature Range ....................................-40 C to +85 C 3.7 (.146) 80 100 120 140 160 180 200 Time (Seconds) DIMENSIONS: MM (IN) Recommended PCB Layout 4.8 (.189) 3.0 (.118) 1 2 2.85 4.85 (.112) (.191) 3 4 Circuit Diagram 1 2 3 4 REV. 02/06 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. |
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