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Crystal Production
Home > Technology > Mechanical and Environmental Specifications
Test Item Test Condition Test Result
Shock Resistance
(Drop)
 Natural drop on a hard wood board
 from a height of 75cm, three times
 Frequency and waveform of tested
 products must remain within
 specifications.
Vibration  Vibration with amplitude of 0.762mm
 and sweep time of 1 minute at 10
 to 55Hz for 2 hours on x,y and z axis
 Frequency and waveform of tested
 products must remain within
 specifications.
Lead Strength  Lead Pull : 0.9 kg downward for 3 sec.
 Lead Bend : Maximum bend of
  90° reference to base for 2 bends
 There should be no distortion in
 appearance.
Solderability  Dipping in solder(230° ±5°C) for 5 sec.  95% of the coated solder surface is
 uniform and free from breaks and
 pinholes.
Resistance to
Solder Heat
 Dipping in solder(260° ±5°C) for 10 sec.  Frequency and waveform of tested
 products must remain within
 specifications.
Temperature Cycle  Thermal shock of 3 cycles of dwell in
 baths of -40°C for 30min., +25°C for
 15min., +85°C for 30min., +25°C for
 15min.
 Frequency and waveform of tested
 products must remain within
 specifications.
Moisture Resistance  Exposure to temperature of +40°C and
 humidity of 90% RH for 96 hours
 Frequency and waveform of tested
 products must remain within
 specifications with no significant
  rusting.
Aging  30 days @ 85° C or 7 days @ 105°C  Deviation of frequency must be less
 than ±5ppm or custom specification.
Hermetical Seal  Fine Leak :
 Measurement with mass spectrometer
 Gross Leak :
 Test in de-ionized H2O.
 Leak rate less than 2x10-8 Atmos
 CC/sec. of Helium
 Air bubble would not be found in
 de-ionized H2O.
#809, C-Dong, Bundang Technopark #145 Yatab-Dong, Bundang-Ku
TEL) 82-31-707-3600 | FAX) 82-31-707-3603
Copyright (c) 2003 Seoan Electronics Co., Ltd. All rights reserved.

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