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| reference only p.1 /15 product specification for reference only issued date: jun. 05, 2013 rev. : 2 part description: shock sensor murata part no.: pkgs-00ldp1-r the product specification in this sheet is for reference only. the contents of this specific ation are subject to change. you are requested to receive the late st specification and to return one copy of the specificati on to us with your receipt signature before going into mass production. product engineering section sensor products department sensor products division murata mfg. co.,ltd. approved by issued by issued date drawing no. h. kita t. kawamoto nov. 1, 2010 reference only
reference only p.2 /15 murata manufacturing co., ltd specification for transducer part number: pkgs-00ldp1-r 1. scope this product specification is applied to surf ace mountable acceleration sensors used for hard disk drive in a personal computer. please contac t us before using any of the products in the applications not described above. 2. part number 2-1 murata part number :pkgs-00ldp1-r 2-2 customer part number : 2-3 customer drawing number : 3. outline drawing and dimensions 3-1 appearance : as per par agraph 10.appearance criteria. 3-2 dimensions : see figure 2. 3-3 construction : a piezo ceramic element is stuck between two ceramic substrate. 4. characteristics ( ? temperature 25 3 c, unless otherwise noted) parameter test condition min. typ. max. units note 4-1 electric charge sensitivity 1khz, 98.1m/s 2 (10g) applied in the direction of d axis at fig.1 -15 % 85.7 {0.840} +15 % fc/(m/s 2 ) {pc/g} 1,2,5 4-2 insulation resistance 10v dc, after 1 min. 500 10000 m 4-3 non-linearity % of the full-scale output at 490 m/s 2 (50g). range : 50g 1 % 5 % 4-4 resonance frequency 17 20 khz 3 4-5 inclined angle of sensitivity axis maximum deviation from initial value at +25 c. -3 0 +3 degree 4-6 electric charge sensitivity temperature drift maximum deviation from initial value at +25 c ta:70 c 0 % +4 % +10 % ta:0 c -5 % -2.5 % 0 % 4-7 capacitance 1vrms,1khz -30 % 770 +30 % pf ref. < reference only > voltage sensitivity 1khz, 98.1m/s 2 (10g) applied in the direction of d axis at fig.1 {1.10} {mv/g} 1,2,4 note: 1. as measured with an applied acceleration in the di rection of d at figure 1. in this case, positive voltage and electrical charge are generated at electrode b. 2. 1[g] = 9.80665 [m/s 2 ] 3. resonance frequency of inner bimorph element. 4. input impedance of measurement circuit is 10 m (zi), and amplified gain is 0 db. 5. f (femto)= 10 -15 reference only p.3 /15 murata manufacturing co., ltd figure 1. axis d : this axis is an acceleration applied direct ion, when electric charge sensitivity is checked. 5. standard land pattern 6. absolute rating apply voltage between electrode a and b : 10 vp-p within 60 sec. max. storage temperature range : -40 to 85 c operating temperature range : -40 to 85 c electrode b electrode a polarity marking z y x 0 1 d land pattern unit : mm 2.0 3.4 2.8 2.0 reference only p.4 /15 murata manufacturing co., ltd 7. physical characteristics test item condition of test performance requirements 7-1 mechanical shock the transducer shall be measured after being applied three impacts in plus and minus directions of three mutually perpendicular planes. the shock is specified as 14700m/s 2 (1500g) half sine pulse of 0.5 ms duration. no visible damage and the measured values shall meet table 2 7-2 vibration the transducer shall be measured after being applied vibration of amplitude of 1.5 mm with 10 to 55 hz band of vibration frequency to each of 3 perpendicular directions for 2 hours. ( 5 minutes 24 cycles ) 7-3 bend strength pcb the transducer is soldered onto the center of pcb (1.6 mm thickness) which is laid on the 2 small supporters spaced 90 mm. pcb is deflected to 1 mm below from horizontal level by the pressing force with 20 10. r10 stick. the force is supplied for 1 second, 5 times repeatably. no visible damage and the measured values shall meet table 3 7-4 resistance to reflow soldering the transducer shall be mounted on pcb, then measured after being applied following reflow conditions. reference only p.5 /15 murata manufacturing co., ltd table 1 wash cleaning solvent item alcohol (iso-propanol) water (tap water, demineralized water) cleaning water solution (cleanthrough 750h, pine alpha 100s ) silicon (techno care frw) temperature difference: t *1 [ t = component - solvent] t < 100 c condition (1) ultrasonic wash 1 minute max. in above solvent at 60 c max. ( frequency : 28 khz, output : 20 w/l ) (2) immersion wash 5 minutes max. in above solvent at 60 c max. (3) shower or rinse wash 5 minutes max. in above solvent at 60 c max. (4) drying 1 to 5 minutes. by air blow at 80 c max. *1 ex. in case the component at 90 c immerses into cleaning solvent at 60 c, then t = 30 c. note(wash) 1.please insure the component is thor oughly evaluated in your application circuit. 2.the component may be damaged if it is washed with alkali cleaning solvent. 3.flux should be washed out before use. reference only p.6 /15 murata manufacturing co., ltd 8. environmental characteristics test item condition of test performance requirements 8-1 high temperature a fter being placed in a thermal chamber with at +85 2 c for 1000 hours and then being placed at ambient conditions for 8 hours, the transducer shall be measured. the measured values shall meet table 2 8-2 low temperature a fter being placed in a thermal chamber with at -40 2 c for 1000 hours and then being placed at ambient conditions for 8 hours, the transducer shall be measured. the measured values shall meet table 2 8-3 humidity after being placed in a humidity chamber with 90 to 95 % r.h. at +60 2 c for 500 hours and the being placed at ambient conditions for 8 hours, the transducer shall be measured. the measured values shall meet table 2 8-4 heat shock a fter being kept at room temperature, the transducer shall be placed in a thermal chamber at temperature of -40 c. a fter 30 minutes at this temperature, the transducer shall be immediately placed in a chamber at temperature of + 85 c. after 30 minutes at this temperature, the transducer shall be returned to -40 c again. a fter 10 of the above cycles, the transducer shall be returned to ambient conditions where it shall remain for 8 hours prior to being measured. the measured values shall meet table 2 table 2 electric charge sensitivity 10 % ( from initial value ) table 3 capacitance 10 % ( from initial value ) reference only p.7 /15 murata manufacturing co., ltd 9. dimensions and indication figure 2. dimensions indication contents part number code ???????? a manufacturing company mark ???????? m monthly code ???????? monthly code based on eiaj-0901 6.4 0.2 1.5 0.3 1.2 +0.1/-0.2 2.8 0.2 electrode a bottom top polarity marking 1.5 0.3 2.3 min. indication: indication may lap over on the electrodes. electrode b 1.5 0.3 1.5 0.3 unit: mm c part number code monthly code manufacturing company mark dot reference only p.8 /15 murata manufacturing co., ltd 10. appearance criteria 10-1. crack, chip and partial lack of electrode ? if crack or chip exist at cor ners, apply the above b-part standard. ? in case crack or chip reaches internal cavity, it is judged as failure even if length [b], [d] and width [a], [c] are met this specification. ? if there are two or more chips on b part, total length of [d] should be < 1.2mm criteria table for a part unit [mm] 0 < b < 0.4 0.4 < b 0 < a < 1.2 g g 1.2 < a g ng criteria table for b part unit [mm] 0 < d < 0.4 0.4 < d < 1.2 1.2 < d 0 < c < 0.4 g g g 0.4 < c < 1.2 g g ng 1.2 < c g ng ng a-part (along with long edge) b b-part (along with short edge) c d a electrode electrode for polarity marking corner (*1) any chips which is covered by electrode are judged as good. reference only p.9 /15 murata manufacturing co., ltd 10-2. electrode peeling and delamination ? apply a-part standard to top and bottom electrode including polarity marking. ? apply b-part standard to two-end electrode. criteria table for a part unit [mm] 0 < b < 0.4 0.4 < b < 1.0 1.0 < b 0 < a < 0.4 g g g 0.4 < a < 1.0 g g ng 1.0 < a g ng ng criteria table for b part unit [mm] 0 < d < 0.4 0.4 < d 0 < c < 1.0 g g 1.0 < c g ng a-part (top, bottom, polarity marking) b b-part (two-end) c d a reference only p.10 /15 murata manufacturing co., ltd 10-3. electrode protrusion and bridge [a-part] ? if electrode protrusion reaches opposit e electrode, it should be failure. ? the same criteria are applied on the bottom electrode. criteria table for a part unit [mm] 0 < b < 0.4 0.4 < b 0 < a < 1.2 g g 1.2 < a g ng [b-part] criteria table for b part unit [mm] c < h h < c g (*1) ng (*1) in case electrode protrude reaches to polarity marking, it should be good. [c-part] criteria table for c part unit [mm] d < m+ 1.2 m+ 1.2 < d g ng m side view c-part d a a-part b-part c electrode for polarity marking h b top view reference only p.11 /15 murata manufacturing co., ltd 10-4. position of connection electrode ? it is judged as good regardless of the position of connection electrode unit [mm] a > 0 g a a > 0 top view connection electrode reference only p.12 /15 murata manufacturing co., ltd 11. taping method 11-1 the tape for transducer shall be would clockwis e. the feeding holes shall be to the right side as the tape is pulled toward the user. 11-2 a reel shall contain 2,000 pcs of trans ducers and be clearly marked with part number, quantity, inspection number. figure.3 dimension of plastic tape figure.4 dimension of plastic reel 12.5 ?0.0 +1.0 19.5 max 13 0.5 2 ?0.2 +0.5 110 to 190 trailer 160 min. 400 to 560 cover tape leader unit : mm ( 178) 100 min. weld 4.0 0.1 0.3 0.1 2.0 0.1 1.5 -0.0 +0.1 1.65 0.1 (2.0 max.) 6.9 0.1 5 .5 0.1 12.0 0.3 4.0 0.1 3.2 0.1 1.75 0.1 ) 196 to 686mn (20 to 70gf) 300mm/min. cover tape 10 direction of feed unit: mm reference only p.13 /15 murata manufacturing co., ltd 12. caution (application, fail-safe) 12-1.application limitations this product, the pkgs type shock sensor, has been designed for hard-disk drive applications, used in personal computers and c onsumer audio-visual equipments. please contact murata before usi ng this product in the applicati ons listed below, which require especially high reliability for the prevention of def ects which might directly cause damage to the third party's life, body or property, or when this product is intended for use in applications other than those specified in this data sheet. we s hall not be liable for any claims on the product in case it is used in the listed applic ations below, without contacting us. (1) cellular phone (2) automotive equi pment other than the above mentioned (3) outside use equipment (4) aircraft, av ionics equipment (5) aerospace equipment (6) under sea equipment (7) power plant control equipment (8) medical equipment (9) transportation equipment (vehicles, trains, ships, etc.) (10) industrial equipment (11) traffic signal equipment (12) disast er prevention / crime prevention equipment (13) safety device / system (14) military equipment (regardless of direct/indirect use) (15) applications of similar complexity and/or re liability requirements to the applications listed in the above. 12-2.fail-safe be sure to provide an appropriate fail-safe f unction on your product to prevent damage that may be caused by the abnormal function or the failure of our product. 13. caution (handling) 1) this product may be degraded by electrostatic discharge. we would suggest countermeasures against electrostatic discharge, before handling this product. 2) please evaluate this product in your product; with it mounted to a printed circuit board (pcb) or similar. we recommend that this product not be repeatedly mounted on or removed from a pcb by soldering, because of the possibility of degradat ion due to excessive heating to this product or electrostatic discharge (in case electr ostatic discharge is not guarded against). 14. caution (storage condition and usage environment) 1) maximum storage period is for 6 months under the condition of 30c and 70%rh before pcb mounting. if this product is kept in an es pecially high humidity environment, the product may degrade because of decreased insulation resi stance value due to such conditions. 2) please do not store and do not use this product in conditions that differ greatly from atmospheric pressure, such as a vacuum space, a high mountain, water, and so on. a pressure cooker test is not applicable for this product. 3) please do not expose this product to dust, oil, co rrosive gas, acid, or alkali. this product may be degraded if exposed. 15. caution (design) 1) please use a charge amplifier circui t. this specification is only valid for use with charge amplifiers. for instance, if you use a voltage amplifier circui t that is used with this product, we shall not be liable for any claims. 2) please do not apply dc bias voltage to this pr oduct, because it causes degradation of insulation resistance value. please try to keep minimizing t he input bias current at front-end of amplifier circuit as well. 3) please thoroughly evaluate this product for noise immunity. noise, coming from the product (emi) and/or generated by signal lines on pcb or other mechanical device (like a spindle motor), may result in the miss-operation or the non-operation of this product. 4) please thoroughly evaluate this product in terms of mechanically accelerated transmission system, because this product may detect unexpected accele ration that is transmitted through pcb and/or through the frame of your product. mechanical re sonance on your product or individual vibration frequency of installed components/devices may create mutual interference, and it may result in incorrect measurement by the sensor. reference only p.14 /15 murata manufacturing co., ltd 5) please do not apply excessive strain force or shock to this product that deviates from the conditions in this specific ation, because mechanical failure or damage could occur. 6) please thoroughly evaluate this product in your m anufacturing if you will use any conformal coating or potting process. these processes (for instance, in case resin type of material is used) could result in package breaks, due to heat shrink. also , humidity that remains inside of the case, may affect circuit operation due to decreased insulation resistance value. 7) physical and environmental characteristics for th is product are described in this specification. please consider these characteristics in evaluating this part in your product. 8) please carefully design the application?s housing to minimize dew and humidity. an amplifier circuit would have high impedance, 50m ohm for instance, but this value may decrease under a high humid environment. due to this; you may not be able to see the intended performance from your circuit design, unless you consider t heses factors in your product design. 9) please do not use this product in the pres ence of radiation rays or cosmic rays. 10) please do not use this product in the presence of high electromagnetic fields. 11) please consider the possibility of unexpected output signal-level generated by sharp temperature change. please evaluate this product under a ll expected environmental conditions. we recommend a fail-safe function to compensate for any unexpected signal levels. 12) pyroelectric noise may be seen on the output signal of this product, where there is a temperature variation (delta-t) around the product. delta-t may likely occur by airflow that is generated by a cooling fan that is often used in a computer. if your application requires a very small acceleration resolution, less than 0.1g with 50hz or less for in stance, we would suggest shutting off the airflow for increased accuracy in sensor detection. 13) this product is very sensitive to bending stre ss occurring on pcb, therefore please locate the sensor in an area on the pcb that is unaffected by bending stresses. 16. caution (mounting) 16-1. reflow soldering 1) please use the standard footprint as shown in the s pecification. if you use a different one, we shall not be liable for any claims. 2) please follow soldering conditions described in the specification. th is product can permanently stop operating if the piezoelectric characteri stic is decreased due to excessive heating. 3) please follow the recommended washing conditi ons, as described in the specification. 4) please make sure to evaluate the soldering condition with this product mounted on your pcb. reference only p.15 /15 murata manufacturing co., ltd 17. note 1) please make sure that the final product has been evaluated to all your product?s specifications, with this product mounted inside. 2) all the items and parameters in this product s pecification have been prescr ibed on the premise that our product is used for the purpose, under t he conditions, and in the environment agreed upon between us. you are requested not to use our produc t deviating from this product specification. 3) we consider it inappropriate to include any terms or conditions with regard to the business transactions in the product?s specific ation, drawing, or other techni cal document. therefore, if your technical document includes any of the above item s, such as warranty clause, product liability clause, or intellectual property infringement li ability clause, they will be deemed to be invalid. |
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