ACT200 ETC
Document overview
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Technical content
Tel (44) 0118 979 1238 Fax (44) 0118 979 1283 email info@actcrystals.com Please note that not all parameters can necessarily be specified in a single device ISO9002 Registered - Registration number 6830/2 For quotations or further information please contact us at:
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www.advancedcrystaltechnology.com Issue 2 M4 22/9/03 ACT200 The ACT200 is a miniature surface mount Watch Crystal whose low power consumption makes it ideal for portable applications. It’s size makes it suitable for high density circuit boards or applica- tions where space is limited and the tape and reel packaging means that it is ideal for automatic placement machines. The heart of the device is a heat resistant cylinder type crystal which gives it high stability characteristics sufficient to allow reflow soldering Parameter Symbol Specification Condition Nominal Frequency fo 32.768KHz Frequency Tolerance ∆f/fo ±5ppm, ±10ppm, ±20ppm, 30ppm @25°C Frequency v Temp Characteristics ∆f/fo See drawing -10 ~ +60°C Turnover Temperature Tm 25°C ± 5 °C Freq. Temp. coefficient β -0.034 ±0.006ppm/°C 2 Temp Operating Range Topr -40 ~ +85 °C Temp Storage Range Tstg -55 ~ +125 °C Equivalent Series Resistance ESR 50K Ω max At 25 °C Shunt Capacitance C0 1.35pF Typical Load Capacitance C L 6 & 12.5pF Others, please specify Motional Capacitance C 1 0.003pF Typical Capacitance Ratio γ 450 Typical Drive Level DL 1 µ W max Insulation Resistance IR 500M Ω Min @ DC 100V ±15V Aging (first year) ∆f/fo ±3ppm max 25°C ±3°C 8.0 max 3.8 max 5.5 0.5 2.5 max 0.9 1.3 4.2 1.3 1.9 1.3 1.9 Dimensions in mm #4 #3 #2Top View Suggested Footprint -20 -10 0 +10 +20 +30 +40 +50 +60 -10 -20 -30 -40 -50 -60 ∆ f/fo (ppm) Typical Temperature Characteristics