STP-1125B

DATA SHEET SUNGMUN CODE : DESCRIPTION : STP-1125B TACT SWITCH SUNGMUN ELECTRONICS CO., LTD. TEL. 301-302,Bucheon Technopark 345, Seokcheon-ro, Ojeong-gu Bucheon-si, Gyeonggi-do, Korea +82-32-328-1941~4 FAX E-mail Website +82-32-328-1945 sungmun@sungmun.co.kr www.sungmun.com Address TACT SWITCH SPECIFICATION Rev. 01 P: 1 / 5 STP-1125B 1. General: 1.1 Switch action PUSH – ON type S.P.S.T 1.2 Switch rating DC 1.3 Operating temperature range -20℃∼70℃ 12V, 50mA max 1.4 Preservative temperature range Single condition Taping condition -30℃∼80℃ -20℃∼40℃ 1.5 Apperance and dimensions As per individual assembly drawing. 1.6 Standard conditions Unless otherwise specified, the test and measurements shall be carried out as follows: Ambient temperature : 5∼35℃ Relative humidity : 45∼85% Air pressure : 86∼106kPa (860∼1060mbar) However, if doubt arises on the decision based on the measured values under the above-mentioned conditions, the following conditions shall be employed. Ambient temperature : 20±2℃ Relative humidity : 60±5%RH Air pressure : 86∼106kPa (860∼1060mbar) 2. Performance 2.1 Electrical characteristics ITEM 2.1.1 2.1.2 DESCRIPTION Contact resistance Insulation resistance Dielectric 2.1.3 withstandin voltage TEST CONDITIONS Criteria Applying a static load twice the actuating force to the center of the stem, measurements shall be made 100mΩ MAX with a 1kHz small-current contact resistance meter. Measurements shall be made following application of DC 100V pote-ntial across terminals and frame 100MΩ min. for one minute. AC 250V (50Hz or 60Hz) shall be applied across There shall be no terminals and frame for one minute. break-down SUNGMUN ELECTRONICS CO., LTD. TACT SWITCH SPECIFICATION STP-1125B Rev. 01 P: 2 / 5 Lightly striking the center of the stem at a rate encountered in norm- al use (3 to 4 operations per sec.) bounce shall be tested at 'ON' and 'OFF' 2.1.4 Bounce 10 msec max 2.2 Mechanical characteristics Items TEST CONDITIONS Criteria Push by recommended operating condition 2.2.1 Operating See outside force drawing Push by recommended operating condition F = (Operation force) × 2 2.2.2 2.2.3 Travel Stop Strength 0.25±0.1mm A static load of 3kgf shall be applied in the direction of stem operation for a period of 60 seconds. No damage (Electrical and mechanical) (1) Amplitude : 1.5mm 2.2.4 Vibration test (2) Sweep rate : 10-55-10Hz for 1 minute. No 2.1 and 2.2.1 (3) Sweep method : Logarthmic frequency sweep rate. to 2.2.2 shall be (4) Vibration direction : X.Y.Z (3 directions) satisfied. (5) Time : Each direction 2 hours (Total 6 hours) SUNGMUN ELECTRONICS CO., LTD. TACT SWITCH SPECIFICATION Rev. 01 P: 3 / 5 STP-1125B (1) Acceleration : 80G (2) Cycle of test : 3 cycles each in 6 directions for a total 2.2.5 Impact 18 cycles No 2.1 and 2.2.1 to 2.2.2 shall be shock test satisfied. Soldering area : t/2 of P.W.B thickness 2.2.6 Soldering (P.W.B : t = 1.6) heat test Soldering temperature : 260±5℃ No damage (Electical and mechanical) Soldering time : 5±1se 2.2.7 Stem strength The maximum force to withstand a pull applied opposite to the direction of stem operation shall be measured. 0.5 kgf min 2.3 Climatic characteristics Items 2.3.1 Cold test TEST CONDITIONS (1) Temperature : -30±2℃ Contact resistance : (2) Duration of test : 96hours 200mΩ max (3) Take off a drop water No 2.1.2 to 2.1.4 and 2.2.1 (4) Standard condition after test : 1 hour to 2.2.2 shall be satisfied. (1) Temperature : 80±2℃ 2.3.2 Heat test Criteria (2) Duration of test : 96hours (3) Standard condition after test : 1 hour Contact resistance : 200mΩ max No 2.1.2 to 2.1.4 and 2.2.1 to 2.2.2 shall be satisfied. (1) Test cycles : 5 cycles (2) Standard conditions after test : 1 hour (3) 1 cycle 2.3.3 Temperature Contact resistance : 200mΩ max cycle No 2.1.2 to 2.1.4 and 2.2.1 to 2.2.2 shall be satisfied SUNGMUN ELECTRONICS CO., LTD. TACT SWITCH SPECIFICATION P: 4 / 5 STP-1125B (1) Temperature : 60±2℃ 2.3.4 Humidity test (2) Relative humidity : 90∼95% (3) Duration of test : 96 hours (4) Take off a drop water (5) Standard conditions after test : 1 hour. Rev. 01 Contact resistance : 200mΩ max No 2.1.2 to 2.1.4 and 2.2.1 to 2.2.2 shall be satisfied Contact resistance : (1) DC 5V, 5mA resistance load 2.3.5 Operating life test (2) Operation speed : 2∼3 cycles/sec (3) Push force : maximum value of operation force (4) Cycle of operation : See outside drawing 200mΩ max Bounce : 20m sec max Actuating force : ±30% initial force No 2.1.2 to 2.1.3 and 2.2.2 shall be satisfied. Switch shall be checked after following test. 2.3.6 Salt mist test (1) Temperature : 35±2℃ (2) Salt solution : 5 ± 1% (3) Duration of test : 48 hours SUNGMUN ELECTRONICS CO., LTD. Without excessive rust or discoloration TACT SWITCH SPECIFICATION STP-1125B Rev. 01 P: 5 / 5 3. Soldering Reflow soldering conditions Preheat : temperature on the copper foil surface should reach 180℃,2±0.3 minutes after the P.W.P entered into the soldering equipment. Soldering heat : Temperature on the copper foil surface should reach the peak temperature of 240℃ within 20 seconds after the P.W.B entered into soldering heat zone. SUNGMUN ELECTRONICS CO., LTD.