dip switches smt half pitch type dip switches DX48 series DX48 how to order: material: 1 2 3 4 5 sales@greatecs.com www.greatecs.com l s 02 04 06 08 10 terminal length: 8.1 mm 6.7 mm no. of positions: 2 positions 4 positions 6 positions 8 positions 10 positions n t tb tr seal: regular (standard) top tape sealed package style: tube tape & reel 1 2 4 5 1 f o actuator position: in off position (standard) in on position 3 2 code of 02 04 06 08 10 item description materials treatment 1 cover high-temp. thermoplastic molded black nylon ul94v-0 2 actuator high-temp. thermoplastic molded white lcp 3 contact phosphor bronze gold plated 4 terminal brass gold plated 5 base high-temp. thermoplastic molded black nylon ul94v-0 6 tape katpon pcb layout pcb layout DX48l terminal length 8.1mm DX48s terminal length 6.7mm
dip switches smt half pitch type dip switches DX48 series sales@greatecs.com www.greatecs.com 2 1. style: this specification describes "smt half pitch type dip switches? mainly used as signal switch of electric devices, with the general requirements of mechanical and electrical characteristics. 1.1 operating temperature range : -40 ~+8 : 5 : 1.2 storage temperature range :-40 ~+85 :: 2. current range: 2.1 non-switching: 100ma, 50v dc 2.2 switching: 25ma, 24v dc 3. type of actuation: actuated by sliding 4. test sequence: item description test conditions requirements 1. visual examination by visual examination check without any out pressure & testing. there shall be no defects that affect the serviceability of the product. 2. contact resistance 1)to be measured between the two terminals associated with each switch pole. 2)measurements shall be made with a 1 khz shall current contact resistance meter. 100m ? max. (initial) 3. insulation resistance 500 v dc , 1 minute5 sec. 100m ? min 4. dielectric withstanding voltage 300 v ac (50hz or 60 hz) shall be applied between all the adjacent terminals and between the terminal and the frame for 1 minute. there shall be no breakdown or flashover. melectric performance 5. capacitance 1mhz10khz 5 pf max. specifications
dip switches smt half pitch type dip switches DX48 series sales@greatecs.com www.greatecs.com 3 applied in the direction of operation. on off off on 6 operation force 500 gf max 9? 4.9n max 9? 7 stop strength 1 kgf is applied in the operating direction and pulling direction operated for a period of 15 seconds. there shall be no sign of damage mechanically. 1)soldering temperature : prod series smt type terminal temp 2605 : time 5~10sce 8 soldering heat resistance 2)duration of solder immersion: 51seconds. 3)frequency of solder process: 1 times max. (pcb is 1.6 mm in thickness.) 1)as shown in item 3~6 2)contact resistance: 2 ? max. (final-after test) 9 vibration shall be vibrated in accordance with method 201a of mil-std-202f 1)frequency: 10-55-10 hz 1 min/cycle. 2)direction: 3 vertical directions including the direction of operation 3)test time: 2 hours each direction. 1)as shown in item 2~6 2)contact resistance: 2 ? max.) (final-after test) mechanical performance 10 shock shall be shocked in accordance with method 213b condition a of mil-std- 202f 1)acceleration : 50g 2)action time : 111 m seconds 3)testing direction : 6 sides 4)test cycle : 3 times in each direction 1)as shown in item 2~6 2)contact resistance: 2 ? max. (final-after test) 30~120
dip switches smt half pitch type dip switches DX48 series sales@greatecs.com www.greatecs.com 4 durability 11 operation life measurements shall be made following the test set forth below: 1)25ma,24 v dc resistive load 2)rate of operation : 15~20 cycles/minute 3)cycle of operation : 1000 cycles 1)as shown in item 3,4 2)contact resistance: 2 ? max. (final-after test) 12 resistance low temperature following the test set forth below the sample shall be left in normal temperature and humidity conditions for an hour before measurements are made : 1)temperature : -403 : 2)time : 96 hours 1)as shown in item 2~6 2)contact resistance: 2 ? max. (final-after test) 13 resistance high temperature following the test set forth below the sample shall be left in normal temperature and humidity conditions for an hour before measurements are made : 1)temperature :852 : 2)time : 96 hours 1)as shown in item 3~6 2)contact resistance : 2 ? max. (final-after test) weather-proof 14 resistance humidity following the test set forth below the sample shall be left in normal temperature and humidity conditions for an hour before measurements are made : 1)temperature : 402 : 2)relative humidity : 90~95% 3)time : 96 hours 1)as shown in item 4~6 2)contact resistance : 2 ? max. 3)insulation resistance: 10 m ? min .
dip switches smt half pitch type dip switches DX48 series sales@greatecs.com www.greatecs.com 5 5. soldering conditions: condition for soldering the condition mentioned above is the temperature on the cu foil of the pcb surface. there are cases where board's temperature greatly differs from switch's surface temperature depending on board's material, size, thickness, etc. care, therefore, should be used not to allow switch's surface temperature to exceed 260 : . temperature room 150 max 260 60sec 120~150sec time ( sec ) 255 230 5~10sec manual soldering max,350 : soldering temperature continuous soldering time max,5 seconds precautions in handling 1. care should be exercised so that flux from the upper part of the printed circuit board does not adhere to the switch. 2. don?t clean the switch body except with top tape sealed type, which can only spray of cleaning method from top of s/w. 3. slide the DX48 actuator from z axial direction with in 30~120of max 300 gf / 10 sec operation. 30~12 4. the suggest tool for actuator adjust is as below. ( example for 4 position )
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