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Plastic encapsulated watch crystal Specification Parameters Specification Remarks Frequency F_nom 32.768kHz Frequency tolerance F_tol ±5ppm, ±10ppm, ±20ppm At 25°C ± 3°C Operating temperature range T_use ‐40°C ~ +85°C Storage temperature T_stg ‐55°C ~ +125°C Temperature coefficient K ‐0.04ppm/°C² Turnover temperature Ti 25°C ± 5°C Load capacitance CL 6pF, 12.5pF Equivalent series resistance ESR 50KΩ max Shunt capacitance C0 0.9pF typical Motional capacitance C1 1.8fF typical Drive level DL 1.0 μW max Frequency aging F_age ±3.0ppm max First year 8.0 x 3.8mm Watch crystal Dimensions (mm) Part number generation EK 00003 G I H D ‐PF ACT Series Code Frequency (KHz) Frequency Tolerance (±ppm) Operating Temperature Range (°C) Load capacitance (CL) Packaging (Tape & Reel) RoHS EK 32.768kHz = 00003 ±5 = A ±10 = C ±20 = G ‐40 ~ +85 = I 6.0pF = N 12.5pF = H Loose = L 3000pcs = D RoHS = ‐PF Note: It is important to suffix the above part number with full frequency required to give a completed part number as illustrated below. Full Example Part Number : EK00003GIHD‐PF (32.768kHz) Note: Internally crystal connect between pad 1 and and pad 4. Metal may be exposed through surface of the device. This will not affect the characteristic of crystal. 8.0 max 3.8 max 3.2 1 2 5.5 0.5 2.38 2.54 max 0.9 0.9 1.9 Internal connection (Top view) 4 3 4.2 1.3 1.3 1.9 Land Pattern ACT (A wholly owned Acal BFi Company) ISO9001 Registered Specifications subject to change without notification
‐190 ‐180 ‐170 ‐160 ‐150 ‐140 ‐130 ‐120 ‐110 ‐100 ‐90 ‐80 ‐70 ‐60 ‐50 ‐40 ‐30 ‐20 ‐10 ‐40 ‐30 ‐20 ‐1 00 1 02 03 04 05 06 07 08 09 0 Frequency deviation ppm Temperature °C X‐Y cut : Frequency stability v temperature Temp.( °C) Time (sec.) 180 ± 10°C 90~120 sec. max 0.45 in 260 ± 5°C 10 sec. max 300 250 200 150 100 220 ± 10°C 30~40 sec. max ⑥④⑦⑧⑨ Drawing control: (Internal use only) Issue number : N1 Date : 01/02/2017 Commodity code : 854160 00 00 Internal reference : E2 Frequency stability vs Temperature Soldering profile 200A Series 8.0 x 3.8mm Watch crystal ACT (A wholly owned Acal BFi Company) ISO9001 Registered Specifications subject to change without notification