SHENZHEN XINTIANYUAN ELECTRONICS CO.,LTD
SHENZHEN XINTIANYUAN ELECTRONICS CO.,LTD
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HC - 49SMD 25.000MHZ Passive Cystal Oscillator PC / PC Peripheral / IT
product application
1 , Marvell GbE LAN.
2 , Wireless WiFi.
3 , Security (camera, alarm)
product features
Standard Environmental Condition:
Ambient temperature:15℃~35℃
Humidity:45%~85%
Atmospheric pressure:86~106KPa
Mechanical test:
The quartz crystal unit shall be subjected to normal atmospheric conditions for 1hr before being tested.
Dropping Test:
The Units are measured for its frequency and resistance in accordance with Table1 & without mechanical damage,after allowing the crystal to fall freely.From 75 cm of height 3 times on the firmed wood.
Vibration Test:
A. Test surface: 30mm thick hard board;
B. Drop height: 75cm;
C. Drop times: 3 times;
D. Begins to drop posture: the leading end is upward;
E. Initial and final test items: frequency, resistance
Sealing Tightness:
Find Lead Test:≤1×10-8atm·cc/S by Helium mass-mass-spectrometer detector,and vacuum and reach 1×10-3Pa；
Resistance to Soldering Heat:
The Units are measured for its frequency and resistance in accordance with Table 1 after dipping into molten solder with the temperature of 320℃±10℃；For 3~4 secs and at a depth up to a point 2.0mm from the base root.
Product specification
| Type | 49SMD | |
| Frequency Range(MHZ) | 25.000MHZ | |
| Frequency Tolerance(at25℃) | ±10PPm ,±5PPm at25℃+/-2℃ | |
| Frequency Stability vs. Temp(FL-T) | ±10PPm,±20PPm ,±30PPm | |
| Operating Temperature range | -20~+70℃ -40~+85℃ | |
| Storage Temperature range | -45~+80℃ | |
| Temperature Characteristics | ±10PPm ±20PPm | |
| Load Capacitance | 8 to 20 Pf or Serles | |
| Aging | ±3 PPm/year | |
| Insulation Resistance | 500MΩ(DC100V±15V) | |
product advantage
The new Tianyuan in R & D, design, manufacturing, marketing and service as a whole, have a hundred grade purification workshop. The international advanced automated production lines, special test equipment, the latest technology and professional and technical personnel; has been preparing for the new Tianyuan own industrial park, to further expand the research and production of the higher requirements of the product.
Dimension
4.1.5 Refluence examination
Frequency change:≤±5ppm
FAQ
Packing
Samples and technical support can be provided free of charge.