R-668049

ONLY FOR REFERENCE Mitsumi Model Name Mitsumi Model No. Operating Force STI-055A16AX R 66 7987 1.6N 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 (1/9) General specification Tactile switches 1824 STI series Approved Checked Drawn Mar-26-18 SW Eng. Ogura Mar-26-18 SW Eng. Kawaguchi Mar-26-18 SW Eng. Inoue Released Mar-26-18 1. General ISSUED 1.1. Application This specification is applied to Tactile switches named STI series. 03.Apr.'2018 1.2. Operating temperature range: -10 to +60 deg-C SWITCH ENG　 1.3. Storage temperature range: -25 to +85 deg-C (Product level) 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) CLICK SPRING (4) BASE (5) TERMINAL Fig. 1: Cross section of product (1) (2) (3) (4) (5) Components ACTUATOR COVER FILM CLICK SPRING BASE TERMINAL Table-1 Material 9T Nylon 9T Nylon Stainless steel 9T Nylon Phosphor bronze Note Ag plated or non-plated Ag plated 3. Rating Specified on Product specification. Revision Code Division S 66 MITSUMI ELECTRIC. CO., LTD. File No. 1824 00 S-0115 (2/9) 4. Electric Characteristics Item Test conditions Criteria 4.1. Measurements shall be made under the conditions shown in Specified on Contact Fig. 3. Product resistance 1) Load: 2 times of the specified standard operating force. specifications. 2) Measurement conditions: Contact resistance meter at 20 mV Max. and 10uA to 10mA. 2.5 mm dia. Push direction 0.5 mm Max. Misalignment ISSUED 03.Apr.'2018 Tilt angle 90+/-2 deg SWITCH ENG　 DEPT Flat tip R0.1 Perimeter (Material: Stainless steel) Fig. 2: Push rod 4.2. Insulation resistance Fig. 3: Measurement conditions Measurements shall be made under the following conditions. 1) Applied voltage: 100 V, DC 2) Duration: 1 min. 3) Applied position: Between terminals. 50 M-ohm Min. 4.3. Measurements shall be made under the following conditions. Withstanding 1) Applied voltage: 100 V, AC (50/60 Hz) voltage 2) Duration: 1 min. 3) Leak current: 2 mA 4) Applied position: Between terminals. There shall be no damage and breakdown. 4.4. Bounce ON bounce: 10 ms Max. Measurements shall be made under the conditions shown in Fig. 3. Bounce time at "ON" and "OFF" shall be measured under the following conditions. 1) Circuit: Refer to Fig. 4. 2) Load: 1.5 times of the specified standard operating force. 3) Frequency of operation: 3 to 4 times/sec. SW DC5 V 5 k-ohm OFF bounce: 10 ms Max. Oscilloscope Fig. 4: Circuit "ON" "OFF" "ON bounce" "OFF bounce" Fig. 5: Bounce File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115 (3/9) 5. Mechanical Characteristics Item Test conditions 5.1. Measurements shall be made under the conditions shown in Operating Fig. 3 just after striking 10 times lightly. force 1) Measurement speed: 0.5 mm/sec. 2) Limit load to apply: 1.5 to 2 times of the specified 5.2. standard operating force. Return Force (N) force Criteria Specified on Product specifications. ISSUED 03.Apr.'2018 Operating force SWITCH ENG　 DEPT Return force Stroke (mm) Fig. 6: Force-Stroke curve 5.3. Click ratio 5.4. Travel Refer to 5.1 and 5.2 for the measurement conditions. Click ratio = (a - b) / a x 100% Force (N) Specified on Product specifications. a b Travel Stroke (mm) Fig. 7 Force-Stroke curve 5.5. Stopper strength Measurements shall be made under the conditions shown in Fig. 3 and at returned condition. Load: 30 N Duration: 15 sec. There shall be no electrical and mechanical abnormality. 5.6. Impact resistance Measurements shall be made after testing under the following conditions. 1) Acieration: 735 m/s2 2) Duration: 6 msec 3) Test direction: 6 directions 4) Number of test: 3 times per direction (18 times in total) There shall be no electrical and mechanical abnormality. File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115 (4/9) 5. Mechanical Characteristics Item Test conditions 5.7. Measurements shall be made after testing under the Vibration following conditions. resistance 1) Vibration frequency range: 10 to 55 Hz 2) Amplitude: 1.5 mm (peak-to-peak) 3) Sweep ratio: 10-55-10 Hz in approx. 1 min. 4) Frequency sweep mode: Logarithmic or Liner sweep 5) Direction of vibration: 3 orthogonal directions including the direction of operation. 6) Duration: 2 hr each (6 hr in total) Criteria There shall be no electrical and mechanical abnormality. ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT 5.8. Measurements shall be made under the following conditions. Solderability 1) Solder temperature: 230 +/- 5 dig-C 2) Dipping time: 3 +/- 0.5 sec. 3) Composition of solder: Sn-3.0Ag-0.5Cu 4) Soldering flux: Rosin 25%, Alcohol 75% More than 75% of dipped part shall be covered with solder. 5.9. Soldering heat resistance There shall be no abnormality such as marked looseness, drop-off, and assured 4. Electrical Characteristics. Operating force: Item 5.1. Measurements shall be made after reflow soldering under the following conditions. 1) Heating method: Far-infrared radiation heating 2) Temperature profile: As shown in below. 3) Allowable soldering process: 2 times Max. Temp. (deg-C) 260 230 180 150 5 sec max. 40+/-10 sec 90+/-30 sec 0 Fig. 8: Reflow soldering profile Time (sec) 5.10. Precautions for soldering 1) This product is designed for reflow soldering. Please do not solder manually. 2) Do not wash the product with solvent or the like. 3) The soldering conditions will be different depending on reflow soldering machines. Conditions of soldering shall be confirmed under actual production conditions. 4) Reflow soldering shall be performed in shorter time and at lower temperature. Otherwise click ratio may be decreased. 5) Please set the proper volume of solder in order to prevent soldering flux ingress and float of the products. 6) Please do not apply soldering flux to the terminals and mounting surface of PWB/FPC. 7) Note that if the load is applied to the terminals during soldering it might cause deformation and defects in electrical performance. File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115 (5/9) 6. Durability Item Test conditions Measurements shall be made after testing under the 6.1. Operating life following conditions. Criteria Contact resistance: 20 ohm Max. 1) Electrical load: Rated load or no load. 2) Rate of operation: 2 cycles/sec. 3) Depression: The maximum value of specified Bounce operating force. (ON/OFF): 4) Cycles of operation: Specified on the product 20 msec Max. specification. Operating force: Within +/-30% of specified initial value. Insulation resistance: 10 M-ohm Min. Withstanding voltage: Item 4.3. Travel: Item 5.4. ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT 7. Environmental Item Test conditions 7.1. Following the test set forth below the sample shall be left in Humidity normal temperature and humidity conditions for 1 hr before resistance measurements are made. Water drops shall be removed. 1) Temperature: 60+/-2 deg-C, Humidity: 90 to 96% RH 2) Duration: 96+/-5 hr 7.2. Heat resistance 7.3. Cold resistance Following the test set forth below the sample shall be left in normal temperature and humidity conditions for 1 hr before measurements are made. 1) Temperature: 85+/-2 deg-C 2) Duration: 96+/-5 hr Following the test set forth below the sample shall be left in normal temperature and humidity conditions for 1 hr before measurements are made. Water drops shall be removed. 1) Temperature: -40+/-3 deg-C 2) Duration: 96+/-5 hr Criteria Contact resistance: 1 ohm Max. Insulation resistance: 10 M-ohm Min. Withstanding voltage: Item 4.3. Bounce (ON/OFF): 20 msec Max. Operating force: Within +/-30% of specified initial value. Travel: Item 5.4. File number 1824 CTRIC. CO., LTD. S-0115 (6/9) 7. Environmental Item Test conditions 7.4. Following continuous 5 cycles of the temperature cycling test Temperature set forth below, the sample shall be left in normal cycling temaperature and humidity conditions for 1 hr before measurements are made. Criteria Contact resistance: 1 ohm Max. Insulation resistance: 10 M-ohm Min. 85+/-2 deg- Withstanding voltage: Item 4.3. -40+/-3 deg120 min 120 min 10 to 15 min 10 to 15 min 1 cycle Fig. 9: Temperature cycling test conditions Bounce (ON/OFF): 20 msec Max. Operating force: Within +/-30% of specified initial value. Travel: Item 5.4. 7.5. Water resistance IPX7 equivalent 7.6. Dust protection IP6X equivalent Ingress shall be confirmed after the test under the following conditions based on IPX7. 1) Depth of immersion: 1 m 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 conditions based on IP6X. 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. 8. Use Condition 8.1. Operating temperature range: Refer to the item 1.2. (Temperature range which the product is ON and OFF electrically.) 03.Apr.'2018 There shall be no freezing and condensation. SWITCH ENG　 8.2. Using environment DEPT 1) Do not expose the products to corrosive gas such as sulfur gas and salty wind. 2) Visible dust must be cleared. 3) Please do not apply excessive load to the products to avoid deformation and deterioration. ISSUED 9. Storage Condition 9.1. Storage temperature range: Refer to the item 1.3. There shall be no freezing and condensation. 9.2. Environment 1) Do not expose the products to corrosive gas such as sulfur gas, and salty wind. 2) Visible dust must be cleared. 3) Please do not apply excessive load to the products to avoid deformation and deterioration. 9.3. Storage method 1) Products shall be packed in an airtight plastic bag and stored in cool place avoiding direct sunshine. 2) Do not stack too many switches for strafe. Shall be free from high temperature and high humidity. 3) Do not store the products in the state of applying load on it's operation area. 4) Products should be used within six months after the date of delivery. File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115 (7/9) 10. Precautions in Use 10.1. Do not clean the products with a solvent or the like. 10.2. Do not use the products with beyond the rated current and voltage. 10.3. Do not apply excessive load to the terminals and the operating part. 10.4. Larger static load than specified and/or shock shall not be applied to the operating part. 10.5. After mounting the products on PWB/FPC, please do not stack too many PWB/FPC in order to avoid excessive load to the switch mounted area. 10.6. The dimensions of a pattern on PWB/FPC shall refer to the recommended dimensions in Product specifications. 10.7. 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. 10.8. Do not push the cover film of products with something sharp. 10.9. Please design and assemble your unit not to apply over load to the switch. 10.10. Please let us know beforehand if you use other shape of pushing rod than the shape described in Fig. 2. 10.11. 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 below (Fig. 10), because the ACTUATOR might deform or come off. No ACTUATOR ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT Fig. 10 Load and impact from side direction 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 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 application for nuclear equipment, driving equipment for aerospace or any other unauthorized use. With the exception of the abovementioned prohibited applications, please contact us (MITSUMI) 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 protection, and/or fire protection into the complete system to ensure safety and reliability of the total system. 10.13. If you intend to use the products for automotive, please let us know beforehand. File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115 (8/9) 11. Packing Specification 11.1. Dimensions of carrier tape are as shown below. 11.2. Taping rule 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) 160 mm or more from the end of trailer tape part shall be empty. 4) The leader part shall be 400 mm or more and it should include 100 mm of empty part. The leader part shall have 20 to 30 mm of un-sealed cover tape. 5) The top tape of the leader part shall be stuck on the side of the reel by 30 to 50 mm using adhesive tape. 6) Peeling strength of cover tape from carrier tape is 0.1 to 1.3 N at 165 to 180 deg. 7) QR code label and Mitsumi label shall be stuck on the side of the reel. 8) The products shall free drop from the reversed carrier tape without cover tape after pressing at 0.1 to 0.2 N force. 9) Continuous two missing switches shall not be allowed. Total number of missing switches shall be 0.1% or less of the packed quantity per reel. 10) The direction of products in the pockets is not specified. 11) 25,000 switches shall be packed in a reel. ISSUED 03.Apr.'2018 SWITCH ENG　 DEPT A 12 B 1.75 C 5.5 D E F G 2 4+/-0.05 4+/-0.05 1.5 dia +0.1/-0 Fig. 11 Carrier tape dimensions Trailer part (with 160 mm or more of empty pockets) Pocket with products Empty pocket 100 mm over Top tape without sealing 20 to 30 mm Leader part (400 mm or more) Fig. 12 Taping specification File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115 (9/9) 12. Packing Specification 1) Inner packing specification 14 +/-0.5 Reel 380 dia. 60 Min. dia. 2 +/-0.5 3 - 2 +/-0.5 Material: PS 13 +/-0.5 dia. QR code label MITSUMI label ISSUED 2) Outer box specification 03.Apr.'2018 Bar-code label SWITCH ENG　 DEPT 170 400 400 PE bag 5 reels max. shall be packed in an inner bag. 3) MITSUMI label specification PARTNO [G] ************ MODEL *** - ******* SPEC.R- R 66 ****** ****** PCS 00 *********-** MADE IN CHINA MITSUMI ELECTRIC CO.,LTD. *************** R 66 ****** G: RoHS compliance Customer's part number MITSUMI model code MITSUMI part number Quantity Lot number Country of origin Customer's part number Lot - production line number MITSUMI part number File number 1824 MITSUMI ELECTRIC. CO., LTD. S-0115