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
200pcs/bag or 1000pcs/tape.
Samples and technical support can be provided free of charge.
