Mitsumi Electric Co KFK7835 User Manual 45551
Mitsumi Electric Co Ltd 45551
8
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| Document ID | 45551 |
| Application ID | DbWMnT01c/EWRNIcoJ9/1A== |
| Document Description | 8 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 11.38kB (142259 bits) |
| Date Submitted | 1999-07-02 00:00:00 |
| Date Available | 1998-06-19 00:00:00 |
| Creation Date | 2001-06-07 09:50:36 |
| Producing Software | Acrobat Distiller 4.0 for Windows |
| Document Lastmod | 2001-06-07 09:50:42 |
| Document Title | 45551.pdf |
| Document Author: | VicodinES /CB /TNN |
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A.” duly mm 1/30). lmA 2—1 Minimum Rating D L' 12V (with pulse width 011101?“ : —2 Contact Bounce. 5msec Max ’ lmtia] lOmsec Max Over life (at normal pushing) -3 Contact Resistance . l.5K£2 Max (resistance value ofmsmbrane circuxt board is included.) lw’ N, 74. Insulation Resistance : 50M £2 Max (at D C 200V) Io L0 6 Withstand voltage A.C.250V‘ 1 minute. 2-6 Circuit Make Contact, 1 circuit 3 Mechanical Specifications . 3-1 Force . (1) Operating Force : 30g typical (2) Maximum Force : 501 20g (3) Click Rate : 45i20‘7/u [Decline of Clicking Force after 10 millmns operation : Within 30%) 3—2. Operating point ; 2.2”3.5mm stroke 3-3 Full Travel . 4.2i0.5mm (at 200g) 3-4. Key Touch Feeling : Keytop must be operated Without squeakmg , catching . locking With normal pushing. mm 4. Endurance Specifications : 4-1 Operating Life : After 10 millions pushing , the switch must be satisfied With electrical and mechanical specifications shown on item 2&3. 11-2. Operating Temperature Range : "5C“ 1' 50 C 4-3 Storage Temperature Range ’ f ZO‘L‘N "65 C (lOOOl—l) 474. Shock Proof 20C in 3 Axis 5 Test Condition : 51. Measuring Conditions: Measuring conditions . Measuring conditions must be at temperature 23111: humidity 50i2%RH. However the measurement may be conducted under condition of normal temperature (l5N35C) and normal humidity (45N75%RH) unless such conditions afifect test results. 5-2 Contact Bounce : Test shall be made by normal pushing at a speed of3~5 times per second with D C SV, 50 u A resistance load. Contact bounce range Will be measured at 80% level as shown below, A‘ ON Bounce B : OFF Bounce page 3 of 7 3-3. Contact Resistance : Contact resistance included resistance value of membrane Circuit board shall be measured at D C 24V , 0 1m.A(letage drop method) ‘ applying static load of the keytop, '—1 Insulation Resistance : Measure ‘ applying D.C.250V between the terminals. fiat Withstand Voltage After A,C.250V IS applied between the terminals for 1 minute. any change and damage will not he appeared. 56 F urce . (1) Operating force ' Measure the operating force when sthch makes contact by pushing the center of the keytop. (2) Maximum Force : Measure the maximum Force among the full travel except the full travel force (3) Mlnimum Force : Measure the minimum Force among the travel after the maximum force. Maximum Force Minimum Force Travel(mm) Full Travel Fig]. 5»? Operating Paint: Measure the distance when switch makes Contact by pushing the center of the keytopr 5—8 Full Travel ‘ Measure the distance When static load of 200g is to he applied onto the center of the keytop 5-9 Key touch feeling: Keycop must be operated , Without squeaking , catching, locking with normal pushing of full travel at a speed of 3~5 times per second 510. Operating Life: As illustrated in Figfi ,operating life test shall be made at a speed of3~7 meter per second pushing the center of the keytop with a plunger ofcam life tester. Life test condition D,C.22V On time ’ 25mmsec Cycle : 3~7 time/sec Pushing force : 200g T ' l Polyurethane ( ypxca) Upper Pasvtion Later Positvun Fig 3. 6. Test Form : 6-1. Humidity Test: After unit is kept for 96 hours in o chamber of temperature +40I2°C ,and relative humidity 90N05% and then is left in ambient condition for l hour,elccti-1ca] & mechanical specifications item 2&3 shall he Sfilhflt‘d 62. Low Temperature Tesi After unit is kcpt for 96 hours in a chamber of temperature 420: 2 (‘ ,thcn is lelt in ambient condition for 1 hour , electrical & mechanical specifications itcni 2&3 shall be satisfied 6-3 High Temperature Test : After unit is kept for 96 hours in a chamber of temperature +7012? , then is left in ambient condition for 1 hour , electrical & mechanical specifications item 2&3 shall be satisfied. 6-4 Thermal Shock Test . After unit is kept for 5 cycles (one cycle consvsts of 40: TC , 1 hour and +60i2 C . 1 hour ) and then is left in ambient condition for 1 hour c electrical & mechanical specifications item 2&3 shall be satisfied. . Vibration ProofTest : Unit shall satisfy electrical & mechanical spemfications item 2&3 after the following Vibration is applied. Frepuency : 10“55 Hz (cycle: 1 minute) Full amplitude 1,5mm Duration 2 hours each in 3 directions . Shock ProofTest : After 20 G (half-sine wave) is applied to unit 3 times each in 3 directions , electrical Ex mechanical specifications item 2&3 shall be satisfied. cf) The test (G-INGVS) must be done under the open~circuit condition. page 6 of 7 7A Appearance of keytop 1 771. Disposltion of keytop " Disposition of the keytop shall be within the limit ofO 5mm as illustrated in Fig.»1 in both vertical and horizontal lines 0.5mm MAX 7»2. Tilt of keytop ‘ Tllt ofkeytop shall be within the limit ofO 5mm as illustrated in Fig 5, (limm MAX Fig .6, 73 Angular deviation of keytop Angular deflation of keytop shall be within the limit of 0.5mm as illustrated in Fig 6, 0,5mm MAX T-4v Uneven level of keytop ' Uneven level of keytop shall be withm the linnt of0.5xnm as illusLmLed in Fig 7. However, exclude the bend ofche frame [1 ,fi\ >< 53.
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