CFV-308 CITIZEN | Alldatasheet
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Technical content
CFV-308, CFV-206, CFV-145, CSE-145 es OC*é«dEEATUREESS: ae ee * Similar to the CFS series, the CFV series features i Fey Ae superior characteristics of a kind that only tuning ‘cide aaa Pye oS fee] fork-type crystal units can offer. Ideal for application —— oe meee AS aa to compact portable equipment. | x ea -— | * CSE-145, which adopts Citizen's unique E-shaped | —- ici ie oe ke 2S configuration for its crystal piece, not only boasts the | + | world's smallest size among 1MHz-band crystals, ae scp ANS | but also features outstanding shock resistance. fr SE ARES ss MAPPLICATIONS: fet eae Si Rao — * Because of their miniature size and excellent impact SG 1) IR eed 7 resistance, the units are ideal for such compact bk to # = portable equipment as communication equipment, Hi. See Life size AV equipment and measuring instruments. HDIMENSIONS: (UNIT=mm) | 5 | 3 | F i 4 a 10 . | - ~ . | CFV-308 l CFV-206 - | CFV0145, CSE-145 STANDARD SPECIFICATIONS Item Model CFV-308 CFV-206 CFV-145 CSE-145 | Conditions |_Nominal frequency fo_| 830kH2~40kHz |30kHz~165kHz 200kHz AMHz Phase ctr efor congas i freee, | Frequency tolerance Afffo +30ppm +30ppm +10,000ppm | +3,000 At 25°C Frequency vs. Temperature characteristics | Af/fo i See drawing -10°C ~ +60°C Tumover temperature 25°C 45°C 7 | 35°C TYP. Temperature Coefficient B 0.034 +0.006ppm/°C* Varies depending on frequency. Operating temperature range | Torn HOO 6G | Storage temperature range Tste —40°C~+85°C_ | Equivalent series resistance Ri, 35kQ~50kQ 10kQ | 3kQ i At 25°C Load capacitance lon 12.5pF TYP. | 8.0pF TYP. | Please specify % i apes eave oe vp . Motional capacitance can 1~4fF TYP. 1fF TYP. Varies depending Capacitance ratio ee ae a __425~800 TYP. ! 400 TYP. | Drive level DL 1pW MAX, Insulation resistance IR 7 S00MQ MIN. DC100V #15V_ Aging (First year) | Atffo - +5ppm MAX. 25°C +3°C Sealing [| 1x 10°? Pa-m‘/s MAX. _ | a +5ppm MAX. Condit il FREQUENCY vs TEMPERATURE CURVE as 1 ot ewe | Avtalcom | { cee http:/www.citizen-america.com