Cixi Netcom Electronics Co., Ltd.-DIP switch manufacturer CWT card DIP switch - high quality, high reliability, RoHS environmental standards 

 CWT brand computer motherboard DIP switches are widely used in supermarkets frequency and wireless communications, FM radio and television equipment and automation equipment on the code of computer software programming 

 DIP switch, SMD DIP opening, rotary switch, DIP switch, coding switch, toggle switch. Overclocking switch, the address switch, mired switch, digital switch, SMT switch, SMD switch, thumbwheel switch, dip switch, dip switch 

 IC Type DIP Switches (DI series): 2, 3, 4, 5, 6, 7, 8, 10, 12; 

 IC type DIP switch SMD type testing requirements: 
 ● First, the mechanical properties: 
 1, the operating force: 1000g max 
 2, push button trip: 0.90mm 
 3, temperature: -20 ℃ ~ +70 ℃ 
 4, storage temperature: -40 ℃ ~ +85 ℃ 
 ● Second, characteristics: 
 1, base: plastic, black 
 2 cover: engineering plastics, black 
 3, push the button: plastic, white 
 4, Terminal: gold-plated copper alloy. 

 ● Third, the electrical characteristics: 
 1, electrical life: 24VDC voltage and current 25 mA under test can toggle back and forth 2000 times. 
 2, switch rarely destroyed for the rated current: 100 mA, voltage 50 VDC. 
 3, the switch often switch rated current: 25 mA, voltage 24 VDC. 
 4, contact resistance: (a) the maximum initial value of 50 mΩ, 
 (B) test the maximum 60 mΩ. 
 5, Insulation Resistance: 100 MΩ, 500 VDC. 
 6, compressive strength: 500 VAC / 1 minute. 
 7, a very inter-capacitance: maximum 5pF. 
 8, loop: single contact menu selection 

 ● Fourth, soldering and cleaning process: 
 1, all the operation, make sure the switch in the "off" position. 
 2, wave soldering: (IC type) Recommended solder temperature at 260 ℃, up to 5 seconds. 
 3, Hand soldering: Use a 30 watt soldering iron temperature control at 320 ℃, welding time of about 2 seconds. 
 4, Reflow: (SMD) reflow oven maximum temperature of 260 ℃; temperature of 240 ℃, the longest no more than 20 seconds. 
 5, the cleaning process: use of ultrasonic cleaning method can give better results; 
 Way to use steam, the temperature should not exceed 51 ℃. 


 ● Fifth, Packaging: The above products work with the IC tube packaging to ensure quality.