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RHC-49US

RHC-49US
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rakon --[--[■Microprocessor Crystal Reliable resistance welded SMD microprocessor crystal with high stability and calibration tolerance options available. [[[[[[[duct description Standard SMD microprocessor crystal packaged using a resistance welded metal enclosure. This model has a very low profile and is supplied on tape and reel. Applications • Consumer • Industrial • Telecommunications Features • Low cost • High stability • Wide frequency range • AT/BT fundamental, or third overtone crystal modes Line Parameter 1.4 Rakon part number FREQUENCY CHARACTERISTICS Parameter Test Condition Frequency AT cut: 3.4875 to 36 MHz; BT cut: 24 to 44 MHz; 3rd overtone: Calibration tolerance Frequency stability over temperature Temperature range Long term stability Frequency at 25°C ±2°C and specified load capacitance Referenced to frequency reading at 25°C and the specified load capacitance Operating temperature Frequency drift over 1 year at 25°C Value Unit ELECTRICAL Parameter Load capacitance (CL) Shunt capacitance (C0) Drive level Equivalent series resistance (ESR) Insulation resistance (IR) Test Condition Frequency is calibrated at room temperature Operating specification Typically 100 pW Value Unit

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Line Parameter Description Half sine-wave acceleration of 100g peak amplitude for 11 ms duration, 3 cycles in each plane After 1000 hours at 40°C 95% relative humidity non-condensing 50 temperature cycles, where each cycle consists of a 15 minute soak time at -40°C followed by a 15 minute soak time at 100°C, with a 10 second transition time between temperatures. Frequency swept from 10 Hz to 55 Hz back to 10 Hz in 1 minute. Amplitude of 1.5 mm displacement. A duration of 2 hours in each of the 3 perpendicular axes. -40 to 95°C 5.1 Reflow Solder reflow process as per attached...

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Date Code: 3 Characters. (Code details see table below) — Manufacturing Code: 1 Character. (Internal use only) .Frequency in MHz: 6 Characters, (i.e: 8.0000 = 8 MHz; 54.000 = 54 MHz) MARKING DETAILS R XXXXXX F YMD X FRONT VIEW RECOMMENDED PAD LAYOUT - TOP VIEW Y - Year Code M - Month Code D - Day Code Code TITLE: RHC-49US SMD MODEL RELATED DRAWINGS: TOLERANCES: XX = XX = ±0.2 X.XX = ±0.10 X.XXX = X° = Hole = rakon © 2009 Rakon Limited

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