|Place of Origin:||China|
|Certification:||SGS REACH ISO9001:2008|
|Model Number:||49SMD 25.000MHZ|
|Minimum Order Quantity:||1|
|Supply Ability:||1 week|
|Frequency Stability:||10PPM||Insulation Resistance:||500MΩ(DC100V±15V)|
|Service:||OEM Welcome||Certificate:||SGS, RoHS, ISO9001, ISO14001|
watch crystal oscillator,
audio frequency oscillator
HC - 49SMD 25.000MHZ Passive Cystal Oscillator PC / PC Peripheral / IT
1 , Marvell GbE LAN.
2 , Wireless WiFi.
3 , Security (camera, alarm)
Standard Environmental Condition:
The quartz crystal unit shall be subjected to normal atmospheric conditions for 1hr before being tested.
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.
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
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.
|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|
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.
4.1.5 Refluence examination
Samples and technical support can be provided free of charge.