DOCUMENT No. TITLE PAGE KTR- 602 PRODUCT No. Date Oct. 2021 For reference 1. General 1.1 Application This specification covers the requirements for TACT Switch which has no key top. 1.2 Operating temperature range -40 90 (normal humidity, normal air pressure ) Operating temperature range shall refer to the range where this switch keeps electrical function within such temperatures. ON-OFF 1.3 Storage temperature range At Switch level -40 90 (normal humidity, normal air pressure ) Switch on Taping -20 50 (Relative humidity 20 85%) 1.4 Test conditions Unless otherwise specified, the atmospheric conditions for making measurements and tests are as follows. Normal temperature (Temperature 5 35 ) Normal humidity (Relative humidity 25 85) Normal air pressure (Air pressure 86 106kPa) If any doubt arise from judgement, tests shall be conducted at the following conditions. Ambient temperature 20 2 Relative humidity 60 70 Air pressure 86 106kPa Switch shall be mounted on PWB without any indication of switch floating. 2. Appearance, style and dimensions 2.1 Appearance There shall be no defects that affect the serviceability of the product. 2.2 Style and dimensions Refer to the assembly drawings. 3. Type of actuating Tactile feedback 4. Contact arrangement 1 poles 1 throws 1 1 (Details of contact arrangement are given in the assembly drawings ) 5. Ratings 5.1 Maximum ratings 16 V DC 50 mA 5.2 Minimum ratings 1 V DC 10 A 6. Electrical specification Items Test conditions Criteria 6.1 Contact resistance Applying a below static load to the center of the stem, measurements shall be made. 500 m Max. (1) Depression : 7.6 N (2) Measuring method : 1 kHz small-current contact resistance meter or voltage drop method at 5VDC 10mA. 1kHz DC5V 10mA 6.2 Insulation Measurements shall be made following the test set forth below: 100 M Min. resistance (1) Test voltage 100 V DC for 1 min. (2) Applied position Between all terminals. And if there is a metal frame, between terminals and ground(frame) 6.3 Voltage proof Measurements shall be made following the test set forth below: There shall be no breakdown. (1)Test voltage 250 V AC (50 60Hz) (2)Duration 1 min (3)Applied position Between all terminals. And if there is a metal frame, between terminals and ground (frame) DOCUMENT No. TITLE PAGE KTR- 602 PRODUCT No. Date Oct. 2021 For reference Items Test conditions Criteria 6.4 Bounce Lightly striking the center of the stem at a rate encountered in normal use (3 to 4 ON bounce 10 ms Max. operations per s.), bounce shall be tested atO andOF. OFF bounce 10 ms Max. 7. Mechanical specification Items Test conditions Criteria 7.1 Operating force Placing the switch such that the direction of switch operation is vertical and then gradually 3.8 0.55 N increasing the load applied to the center of the stem, the maximum load required for the switch to come to a makeO shall be measured. Operation force shall be measured after 3 times pre-operations. 3 7.2 Travel Placing the switch such that the direction of switch operation is vertical and then applying a 0.72 0.15 mm static load of bellow force to the center of the stem, the travel distance for the switch to come to a makeO shall be measured. Travel shall be measured after 3 times pre-operations. ON 3 (1) force 4.35 N 7.3 Return force The sample switch is installed such that the direction of switch operation is vertical and, 1 N Min. upon depression of the stem in its center the travel distance, the force of the stem to return tot its free position shall be measured. Return force shall be measured after 3 times pre-operations. 3 7.4 Stop strength Placing the switch such that the direction of switch operation is vertical and then a below Keep electrical ON/OFF. static load shall be applied in the direction of stem operation. ON-OFF Item 6.1 (1) Depression 50 N (2) Time 15 s 7.5 Stem strength Placing the switch such that the direction of switch operation is vertical and then the 5 N maximum force to withstand a pull applied opposite to the direction of stem operation shall be measured.