R-668050

ONLY FOR REFERENCE Mitsumi Model Name Mitsumi Model No. Operating Force STI-055A24AX R 66 8002 2.4N Pcs/Reel 25,000 Pcs/Reel 5,000 This specification is only for reference.  If you have any questions for the details, please contact SW engineering division. Any products mentioned in this catalog are subject to any modification in their appearance and  others for improvements without prior notification. For your adopting the products, the formal supply specification will be provided.  2‐11‐2,Tsurumaki,Tama‐shi.Tokyo 206‐8657 Japan. 　SWITCH ENGINEERING SECTION 　1049,Tateiwa,Iizuka‐shi. Fukuoka 820‐8533 Japan. ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT ( 1 ) of ( 9 ) General Specification Tactile Switch APPROVED Mar-26-18 SW Eng. Ogura STI Series CHECKED Mar-26-18 SW Eng. Kawaguchi WRITTEN Mar-26-18 SW Eng. Inoue Mar-26-18 1. GENERAL SCOPE 1-1 Application ISSUED This specification is applied to Tactile switches named STI series. 1-2 Operating temperature range: -10 to +60 deg-C 03.Apr.'2018 1-3 Storage temperature range: -25 to +85 deg-C (Product level) SWITCH ENG　 DEPT -20 to +50 deg-C (Taped condition) 1-4 Test conditions Normal temperature; 5 to 35 deg-C, normal humidity; 45 to 85% RH. If any doubt arises from judgement, tests and measurements shall be conducted under the following conditions. Temperature 20+/- 2deg-C, humidity 65+/-5% RH, and air pressure 86 to 106 kPa. 2. Appearance and Construction 2-1　Dimensions: Specified on Product specifications. 2-2　Materials: Refer to Table-1. 2-3 Appearance: There shall be no defects that affect the performance of the products such as crack, scratch, dirt, discoloration, air bubble of ACTUATOR, and contamination. 2-4 Cross section view: (1) ACTUATOR (2) COVER FILM (3) BASE (4) CLICK SPRING (5) TERMINAL Fig-1 Components (1) ACTUATOR (2) COVER FILM (3) BASE (4) CLICK SPRING (5) TERMINAL Revision 3. RATING Table-1 Material 9TNylon 9TNylon 9TNylon Stainless steel Phosphor bronze Note Ag plated or non-plated Ag plated Specified on Product specification. Code ID No. File No. S 66 1825 MITSUMI ELECTRIC CO., LTD. 00 S-0115 ( 2 ) of ( 9 ) 4. ELECTRICAL CHARACTERISTICS Test conditions Items Criteria 4-1 Contact Placing the switch such that the direction of switch operation is verticaRefer to the attached Resistance and applying a below static load to the operating direction, measuremdrawing. shall be made. (1) Depression ：1.5 times the operating force of the standard center value 03.Apr.'2018 (2) Measuring method ：To be measured with A.C. 1kHz +/- 200Hz (Max. 20mV, 50mA) SWITCH ENG　 DEPT (3) Push rod shape ：φ2.5, Tip ：Flat, Perimeter ：R0.1, Material ：SUS. 　(Refer to Item.11 Push rod shape Fig.4) 4-2 Insulation 10 M ohm min. Measurements shall be made following the test set force below: Resistance (1) Test voltage ：100 V DC. ：1minute. (2) Test time (3) Applied position ：Between terminals. ISSUED 4-3 Withstanding Measurements shall be made following the test set force below Voltage (1) Test voltage ：100V AC (50/60Hz) . (2) Test time ：1minute. (3) Leak current ：2mA (4) Applied position ：Between terminals. 4-4 Bouncing 　 There shall be no damage and breakdown. Lightly striking the actuator which is center of the switch with a press ON bounce :10msec. Max. power of 1.5times of center value of operating force spec (striking OFF bounce:10msec. Max. speed at 2 to 3 operations per second.), bounce shall be tested at "ON" and "OFF". Push rod shape ：φ2.5, Tip ：Flat, Perimeter ：R0.1, Material ：SUS. 　　　　　　　　　　(Refer to Item.11 Push rod shape Fig.4) SW DC5V 5ｋΩ Oscilloscope 5. MECHANICAL CHARACTERISTICS Test conditions Items Criteria 5-1 Operating Placing the switch such that the direction of switch operation Refer to the attached Force (OF) is vertical and then gradually increasing the load applied to drawing. the center of the actuator, the maximum load required for the switch to come to a stop shall be measured. Push rod shape ：φ2.5, Tip ：Flat, Perimeter ：R0.1, Material ：SUS. 　　　　　　　　　　(Refer to Item.11 Push rod shape Fig.4) The measurement shall be made just after 10 times pushing. 1) Measurement speed : 0.5 mm/s 2) Depression 　　：1.5 to 2 times the operating force of the specifed center value 5-2 Return Force The sample switch is installed such that the direction of switch operatRefer to the attached is vertical and, upon depression of the Actuator in its center the wholedrawing. distance, the force of the actuator to return to its free position shall be measured. Push rod shape ：φ2.5, Tip ：Flat, Perimeter ：R0.1, Material ：SUS. 　　　　　　　　　　(Refer to Item.11 Push rod shape Fig.4) The measurement shall be made just after 10 times pushing. 1) Measurement speed : 0.5 mm/s 2) Depression 　　：1.5 to 2 times the operating force of the specifed center value File No. MITSUMI ELECTRIC CO., LTD. 1825 ( 3 ) of ( 9 ) 5. MECHANICAL CHARACTERISTICS Test conditions Items 5-3　Click Ratio Calculating metrics: C/R=((a - b)/a)x100 (%) (C/R) Measurement conditions; Same as 5-1. Criteria Refer to the attached drawing. ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT 5-4 Travel Placing the switch such that the direction of switch operation is verticRefer to the attached drawing. and then applying a static load to the center of the actuator, the travel distance for the switch to come to a stop shall be measured. Push rod shape ：φ2.5, Tip ：Flat, Perimeter ：R0.1, Material ：SUS. 　　　　　　　　　　(Refer to Item.11 Push rod shape Fig.4) The measurement shall be made just after 10 times pushing. 1) Measurement speed : 0.5 mm/s 2) Depression 　：1.5 to 2 times the operating force of the standard center value 5-5 Stopper Strength There shall be no sign of damage Placing the switch such that the direction of switch operation is vertical and then a below static load shall be applied in the directio mechanically and electrically. of stem operation. 1) Depression: 30 N 2) Time: 15 seconds 3) Push rod shapφ2.5, Tip ：Flat, Perimeter ：R0.1, Material ：SUS. 　　　　　　　　　　　　　　　　　(Refer to Item.11 Push rod shape Fig.4) Fig-2 5-6 Impact Proof Measurements shall be made following the test set forth below. 1) Acceleration: 735m/s2 2) Acting time: 6 msec 3) Test direction: 6 directions 4) Cycles of test: 3 cycles per direction (18 cycles in total) 5-7 Vibration Resistance Measurements shall be made following the test set forth below. 1) Range of oscillation: 10 to 55 Hz 2) Amplitude, pk-to-pk: 1.5 mm 3) Cycle of sweep: 10-55-10 Hz in approx. 1minute 4) Mode of sweep: Logarithmically sweep or uniform sweep 5) Direction of oscillation: Three mutually perpendicular directions, including the direction of knob travel 6) Duration of testing: 2 hours each, for a total of 6 hours There shall be no sign of damage mechanically and electrically. There shall be no sign of damage mechanically and electrically. File No. MITSUMI ELECTRIC CO., LTD. 1825 ( 4 ) of ( 9 ) Items 5-8 Solderability Test conditions Measurements shall be made following the test set force below: 1) Soldering temperature: 230 +/- 5 ℃ 2) Soldering time : 3 +/- 0.5 seconds 3) Solder : Sn-3.0Ag-0.5Cu 4) Soldering flux : Rosin 25%, Alcohol 75% Criteria More than 75% of the dipped part shall be covered with solder. There shall be no damage 5-9 Soldering heat 1) Reflow soldering Resistance 1-1) Heating method: Far-infrared heating on appearance. 1-2) Temperature-time profile (Maximum value): As shown below. Electrical performance in 1-3) Allowable soldering time: 2 times Section 4 shall be assured. Operating force (Item 5-1) Temp shall be assured. [oC] 　　　 Max 5sec 250 230 180 150 ISSUED 90+/- 30sec 03.Apr.'2018 30+/‐10sec 0 SWITCH ENG　 DEPT Time [sec] Profile of Reflow Soldering (Max) The condition mentioned above is a temperature on the PWB surface on which parts are mounted. There are cases where board's temperature greatly differs from switch's surface temperature, depending on board's material, size, thickness, etc. Please care, therefore, should be use not to allow switch's surface temperature to exceed 250℃. 5-10 Other precautions for soldering 1) Reflow soldering should be performed, due to a solder iron at manual soldering might impact huge heat on such a tiny switch product. In case manual soldering is performed, please be noticed that the switch is not impacted by huge heat. 2) Following the soldering process, do no try to clean the switch with a solvent or the like. 3) As the conditions vary somehow on the kind of reflow soldering equipment, please make sure you have the right one before use. 4) As the click ratio may deteriorate when a high heat load is applied, reflow soldering should be performed in the shortest period and at the lowest temperature possible. 5) Please use the proper amount of solder in order to prevent the flux penetration into the switch. 6) Switch terminals and PWB upper face shall be free from flux prior to soldering. 7) Note that if the load is applied to the terminals during soldering it might cause deformation and defects in electrical performance. File No. MITSUMI ELECTRIC CO., LTD. 1825 ( 5 ) of ( 9 ) 6. ENDURANCE Test conditions Items 6-1 Operating life Measurements shall be made following the test set forth below : (1) Rating load or Non-load. DC15V 20mA resistive load. (2) Rate of operation: 2 operations per second. (3）Depression: The maximum load of a specification of the operating force. (4) Cycles of operation: 200,000 cycles (5) Push rod shape: φ2.5, Tip:Flat, Perimeter:R0.1, Materials:ABS resin 　　　　(Refer to Item.11 Push rod shape Fig.4) 7. ENVIRONMENTAL Test conditions Items 7-1 Humidity After testing at 60+/-2 ℃and 90 to 96% in relative humidity for Resistance 96 +/-5 hours, the sample is allowed to stand under normal temperature and humidity conditions within an hour, then, measurement shall be made within an hour. *Water drops shall be removed. Criteria Contact resistance:20 ohm max. Insulation resistance:10M-ohm min. Bounce: ON bounce 20 msec max. OFF bounce 20 msec max. Withstanding voltage: Item 4-3 Operating force:Assured Item 5-1 Travel: Assured Item 5-4 Criteria Contact resistance: 1 ohm max. Insulation resistance: 10M-ohm min. Bounce: ON bounce 20 msec max. OFF bounce 20 msec max. Withstanding voltage: Item 4-3 Operating force: Assured Item 5-1 Travel: Assured Item 5-4 7-2 Heat Resistance After testing at 85+/-2 ℃ for 96 +/-5 hours, the sample is allowed to stand under normal temperature and humidity conditions within an hour, then, measurement shall be made within an hour. ISSUED 03.Apr.'2018 7-3 Cold Resistance After testing at -40+/-3 ℃ for 96 +/-5 hours, the sample is SWITCH ENG　 DEPT allowed to stand under normal temperature and humidity conditions within an hour, then, measurement shall be made within an hour. *Water drops shall be removed. 7-4 Temperature Following continuous five cycles of the temperature cycling test 　　 Cycling set forth below: 85+/-2oC -40+/-3oC 120min 120min 10 to 15min 1cycle 10 to 15min Ingress shall be confirmed after the test under the following 7-5 Water conditions based on IPX7. resistance 1) Depth of immersion: 1 m IPX7 equivalent 2) Duration of immersion: 30 min. There shall be no ingress water inside of the product. Ingress shall be confirmed after the test under the following 7-6 Dust protection conditions based on IP6X. IP6X equivalent 1) Temperature: 15 to 35 deg-C(Normal temperature) Humidity: 25 to 75% RH(Normal humidity) 2) Air pressure 86 to 106 kPa. 3) Amount of tarc:2 kg/m3 , Tarc:JIS Z8901-4 4) Time: 8hours There shall be no ingress dust inside of the product. File No. MITSUMI ELECTRIC CO., LTD. 1825 ( 6 ) of ( 9 ) 8. USE CONDITIONS 8-1 Operating temperature range: -10 to 60oC(Temperature range which switch is electlically ON and OFF). 8-2 Using Environment 　　1) Do not expose the switch to corrosive gas such as sulfur gas, and salty wind. 　　2) Visible dust must be cleared. 　　3) As the switch may deform and change its quality, please do not apply excessive force to the switch. ISSUED 9. STORAGE CONDITIONS 9-1 Storage temperature: -25 to 85oC. No freeze and condensation. 03.Apr.'2018 9-2 Using Environment SWITCH ENG　 　　1) Do not expose the switch to corrosive gas such as sulfur gas, and salty wind. DEPT 　　2) Visible dust must be cleared. 　　3) As the switch may deform and change its quality, please do not apply excessive force to the switch. 9-3 Storage Method 　　1) Store the switches in the following condition: with neither direct sunshine nor corrosive gas and in normal temperature. 　　2) Do not stack too many switches for strafe. Shall be free from high temperature and high humidity. 　　3) The operating part of the switch should be free position in storage. 10. PRECAUTIONS IN USE 10-1 Do not clean the switch with a solvent or the like. 10-2 Never use the product beyond the rated current and voltage. 10-3 Do not apply excessive load to the terminals and the operating part. 10-4 Larger stress than specified and/or shock shall not be applied to the operating part. 10-5 The switch will be broken, if you give larger stress than specified while operating. Take most care not to give both upward and downward stress to the switch when you operate it. 10-6 After mounting the switch on PWB/FPC, please do not stack too many PWB/FPC in order to avoid excessive load to the switch mounted area. 10-7 The dimensions of a pattern for mounting a printed circuit board shall refer to the recommended dimensions in the outline drawing. 10-8 If you use this product in one of the following environmental conditions, progress of sulfaration and oxidization on the contact part (silver) will be accelerated, which may cause contact failure. Therefore, be careful about the operation environment. 1) Around a sulfarate hot spring where sulfide gas is generated. 2) In case this product is always used in a place where exhaust gas from automobiles exist. 10-9 Do not push the film of the switch with something sharp. 10-10 Please design and assemble your unit not to apply over load to the switch. 10-11 Please let us know beforehand if you use other shape of pushing rod than the shape described in Item 11 10-12 Please be careful on designing and handling especially when the switch is being built into the unit, not to add side force (static or impact) to the Actuator as shown in below, the nub may be deformed or come off. 10-12 Unless provided for otherwise, the products have been designed and manufactured for application in equipment and devices which are sold to end users in the market, including audio-visual (AV) equipment, electrical home appliances, office machines, information and communication equipment, and amusement equipment. The products are not intended for use in, and must not be used for, any applicationfor nuclear equipment, driving equipment for aerospace or any other unauthorized use. With the exception of the abovementioned prohibited applications, please contact an Alps sales representative and/or evaluate the total system regarding applicability for applications involving high levels of safety and liability such as medical equipment, burglar alarm equipment, disaster prevention equipment and undersea equipment. Please also incorporate fail-safe design,protection and redundant circuitry, malfunction and redundant circuitry, malfunction protection, and/or fire protection into the complete system to ensure safety and reliability of the total system. φ2.5 Actuator Fig-4 Fig-3 Primeter:R0.1 Tip:Flat 11. Push rod shape Recommend the shape shown in fig-4 for the push rod. The central axis represents the operating position of the push rod. 12. Operating Conditions The amount of shift between the center of the switch and the central axis of the push rod Must be within 0.5mm based on the switch outline. 0.5mm Max Leaning angle range : 90°+/- 2° (Vertical direction) File No. Fig-5 MITSUMI ELECTRIC CO., LTD. 1825 ( 7 ) of ( 9 ) 13. TAPE PACKING SPECIFICATION 13-1 Carrier tape dimensions are shown below. 13-2 Taping Procedure 1) Tape winding direction is in clockwise. (When pulling the tape toward, feeding holes should be located on the right side.) 2) Feeding holes shall not be covered with the cover tape. The cover tape shall not be run off the edge of the carrier tape. 3) Min 160 mm from the end of Trailer tape part shall be empty and min 400 mm from the end of leader tape part shall be empty. Leader part consists of the part which unstuck with cover-tape (20 to 30 mm) and the cover tape shall be extended min 300 mm. 4) After reeling, stick the leader part of cover tape to the side of the reel with adhesive tape (30 to 50 mm) 5) Peeling strength of cover-tape from carrier-tape is 0.1to 1.3N at 165 to 180deg. angle in reverse. 6) Switch shall be packed in single direction. 7) 25,000 switches shall be pack in a reel. 8) The label which indicates our model number, part number, contained quantity and inspection number shall be stuck on the side of the reel. 9) The switch shall drop by itself when it is pushed with a force of 0.1 to 0.2 N from the back after peeling the cover tape. ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT Mitsumi Label Barcode Label File No. MITSUMI ELECTRIC CO., LTD. 1825 ( 8 ) of ( 9 ) 14. Packing Specification 1) Inner Package 　　　　　Reel ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT Expansion Mitsumi Label The material of a reel : PS QR Code Label 5 reels at maximum shall be packed in a inner bag. PE Bag 2) Outer package 　　　　　Outer Box Bar Code Label 170 5 reels at maximum shall be packed in a outer package. 400 400 File No. MITSUMI ELECTRIC CO., LTD. 1825 ( 9 ) of ( 9 ) 3) Lavel 　　　　　Mitsumi Label PARTNO ************ MODEL STI-****** SPEC.R- Ｒ66 **** ［G］ 25000 PCS 25000PCS CHINA MITSUMI ELECTRIC CO.,LTD. ************ Customer Part No. ISSUED Mitsumi Model Name Mitsumi Part No. G: RoHS Compliant Products Quantity Country of Origin 03.Apr.'2018 SWITCH ENG　 DEPT Customer Part No. Mitsumi Part No. File No. MITSUMI ELECTRIC CO., LTD. 1825