1. scope this specification is applied to the ceramic resonator in ic oscillation circuit. 2. part number 3. electrical characteristics the mhz ceramic resonator must meet the following performan ce when tested in the circuit indicated in figure 1 and figure 2. measuring condition : temperature (+15 ~ 35 ), humidity (45 ~85%rh) item specification oscillation frequency 24.00 mhz initial tolerance 100ppm max resonant impedance 70 ? ?? ? max. insulation resistance 500 m ? ?? ? min. (applied d.c. 15v) withstanding voltage d.c. 100v, 5 seconds max. rated working voltage (1) d.c. voltage (2) a.c. voltage d.c. 12v 15vp-p temperature stability operating temperature 100ppm max. (from initial value) -20 +80 storage temperature -20 +85 aging (10 years) 50ppm max. (from initial value) 21 : internal code e : embossed plastic reel & reel taping 0s : smd type t : ceramic material type 24p0 : oscillating frequency(24mhz) h : sata resonator if : intermediate frequency i f h 2 4 p 0 t 0 s e 2 1 CMHS-MS002 ceramic resonator
figure 1. test circuit for oscillating frequency vdd r (to frequency counter) c1 c2 ic : mc74hcu04 x2(motorola) vdd : +5v 0.1v r : 1m ? c1,c2 : 15pf 0.1% 1 3 5 6 7 14 12 13 11 10 9 8 2 4 ic hp4194a (or equivalent) resonator figure 2. measurement for resonant impedance resonator CMHS-MS002 ceramic resonator
4. dimensions & structure pcb soldering land dimensions marking 1.6 0.15 24.00 a *# 0.50. 1 0.50. 1 1.6 0.15 2.00. 15 0.50. 1 0.50. 1 (unit : mm) 2.0 0.15 1.6 0.15 0.5 0.5 0.8 0.4 0.8 0.4 land *# internal management code * : monthly code, # : weekly code weekly code weekly code 1 1 2 2 3 3 4 4 5 5 monthly code 1 2 3 4 5 6 7 8 9 10 11 12 2008 n p q r s t u v w x y z 2009 a b c d e f g h j k l m 2010 n p q r s t u v w x y z 2011 a b c d e f g h j k l m month year 1.1 max CMHS-MS002 ceramic resonator
item condition & requirement 5-1. storage in high temp. after being placed in a chamber with +85 2 for 1000 hours and then being placed in natural condition for 2 hours, then measure. ? to be satisfied table 1. 5-2. storage in low temp. after being placed in a chamber with -55 2 for 1000 hours and then being placed in natural condition for 2 hour, then measure. ? to be satisfied table 1. 5-3. humidity after being placed in a chamber within +90 to 95 r. h. at +60 2 for 1000 hours and then being placed in natural condition for 2 hour, then measure. ? to be satisfied table 1. 5-4. heat shock after being kept at room temperature, the resonator shall be placed at temperature of -55 . after 30 minutes at this temperature resonator shall be immediately placed at temperature of +85 . after 30 minutes at this temperature resonator shall be returned to -55 again. after 100 above cycles, the resonator shall be returned to room temperature for at least 2 hour, then measure. ? to be satisfied table 1. 5-5. random drop resonator shall be measured after 3 times random drops from the height of 1 m on wooden floor. ? no visible damage and the measured values shall meet table 1. 5-6. vibration test resonator shall be measured after being applied vibration of amplitude to 1.5 L with 10 to 50 ? band of vibration frequency to each of the perpendicular directions for 2 hours. ? no visible damage and the measured values shall meet table 1. 5-7. bending strength pcb resonator is soldered onto the center of pcb which is laid on the 2 small supporters spaced 90mm. pcb deflected to 1mm below from horizontal level by the pressing force with 20x10.r10 stick. the force is supplied for 1 second, 5 times repeatedly. velocity of pole for press : 0.5mm/sec. ? no visible damage and the measured values shall meet table 1. deflection unit : mm 45 45 20x10.r10 stick 1.0 5. environmental & physical characteristics CMHS-MS002 ceramic resonator
item condition & requirement 5-8. solderability end terminals are immersed in rosin for 5 seconds and then immersed in soldering bath of 2455 for 30.5 seconds. ? 75% min. end terminals shall be wet with solder. 5-9. resistance to soldering heat (1) reflow (2) soldering iron following profile of heat stress is applied to resonator, then being place in natural condition for 1 hour, resonator shall be measured. 1. preheating conditions shall be 150 to 170 for 120 to 160 seconds. ascending time up to 170 shall be longer than 30 seconds. 2. heating conditions shall be within 10 seconds at 245 min., but peak temperature shall be lower than 260 . soldering iron of 3005 shall be placed 0.5mm above from electrode of resonator.melting solder through soldering iron shall be applied to electrode for 31 seconds, then being place in natural condition for 24 hours, resonator shall be measured. ? the measured values shall meet table 1. measurements requirements oscillating frequency 0.05% max.(from initial value) table 1 10sec. max. 120sec. max. temperatrure( ) 260 225 170 30sec. 120~160sec.max. preheating (in air) peak temperature 260 max. gradual cooling (in air) CMHS-MS002 ceramic resonator
6. packaging standard the products should be packaged for protecting from the accident which could be caused during transportation or preservation, and part name, quantity and inspection lot no. shall be given to the each minimum packing unit. note) 1 tray contains 3,000 pcs resonator. weight : 0.04 g/pcs reel inner box outer box (a)reel (b)inner box (c)outer box 60,000pcs 195 mm 195 mm 340 mm p/n :(part number) lot no : quantity: 3,000 pcs date : p/n :(part number) quantity: 6,000(2 reel) date : talk no : talk p/n: (part name) p/o no. : vendor : quantity: 60,000 pcs lot no.: type freq.(mhz) materials year&month 185 mm 33 mm 185 mm label 10 inner box 180 mm CMHS-MS002 ceramic resonator
7. cautions for use 7-1. resonator might be damaged when an excess stress is applied. 7-2. cleaning or washing of the component is not acceptable due to non sealed construction. cleaning conditions, such as kinds of cleaning solvents, immersion time and temperatures etc, after soldering shall be checked by experiments before production. 7-3. conformal coating of the component is acceptable. however, the resin material, curing temperature, and other process conditions should be evaluated to confirm stable electrical characteristics are maintained. 7-4. irregular or stop oscillation may occur under unmatched circuit conditions. and it shall be noted that oscillating frequencies of the ceramics resonator may drift depending on ic applied (the type names, the manufacturer) and capacitance of external capacitors(c1,c2) and the circuit design in figure 1. 8. limitation for usage 8-1. the component is manufactured and promoted to be used in general electronic of av, home appliance, communication, measurement equipments and machine tools. 8-2. contact us before using our products for the following applications. 1) aircraft equipment 2) aerospace equipment 3) undersea equipment 4) medical equipment 5) transportation equipment 6) traffic signal equipment 7) disaster prevention/crime prevention equipment 8) data-processing equipment 9) applications of similar complexity or with reliability requirements comparable to the applications listed in the above. these applications requires especially high reliability in order to prevent defects which might directly cause damage to other party's life, body or property. 9. notice 9-1. this specification mentions the quality of the component as a single unit. insure the component is thoroughly evaluated in your application circuit. 9-2. be sure to provide an appropriate fail-safe function on your product to prevent a second damage that may be caused by an abnormality or failure related to our product. 9-3. please do not use this component in any application that deviates from its intended use as noted within the specification. 9-4. return one of this specification after your signature of acceptance. in case of no return within three months from submission date, this specification should be treated as accepted. CMHS-MS002 ceramic resonator
dimensions of carrier tape dimensions of taping reel 3.50.1 8.00.2 1.750.1 4.00.1 2.00.1 4.00.1 (unit : mm) 1.50 +0.1 -0.0 2.80.1 1.50 max. 0.300.1 4max. feeding direction covering tape 3max. 1.0 +0.2 -0.0 2.3 +0.1 -0.05 14.0 max. 9.0 +1.0/-0.5 802.0 180.00 2.00.5 40 190 leader cavity 240 290 400 560 1802.0 contain part(3000pcs) tailer cavity label 13.00.2 21.00.8 (unit : mm) CMHS-MS002 ceramic resonator
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