Email: sales@xtalong.com Tel: +86-28-80192520
Email: sales@xtalong.com Tel: +86-28-80192520
Frequency: 12mhz
OPERATION TEMPERATURE RANGE : -20·70℃
LOADING CAPACITANCE (CL) : 12PF
FREQUENCY TOLERANCE: ±30ppm/Max at 25±2℃
借助 HC49 晶体，实现精准的频率控制。这款石英晶体专为提供稳定可靠的性能而设计，是时序电路及对频率敏感的应用场景的理想之选。它能在各类电子设备中提供卓越的精度与一致性。
以 HC49 12MHz 晶体数据手册为例
49S 系列石英晶体单元规格参数
| 1.HOLDER | DIP |
| 2.GENERAL | |
| 2-1 FREQUENCY(F0) | 12mhz |
| 2-2 MODE OF OSCILLATION (Mn) | FUNDAMENTAL(AT) |
| 2-3 OPERATION TEMPERATURE RANGE | -20℃~70℃ |
| 2-4 STORAGE TEMPERATURE RANGE(Ts) | -40℃~+85℃ |
| 2-5 TEST SET | S&A 250B Network Analyzer |
| 2-6 DRIVE LEVEL (DL) | 100μW/Max |
| 2-7 LOADING CAPACITANCE (CL) | 12pF |
| 3.ELECTRICAL CHARACTERISTICS | |
| 3-1 FREQUENCY TOLERANCE(△f) | ±30ppm/Max at 25±2℃ |
| 3-2 EQUIVALENT RESISTANCE (Rr) | 50Ω/Series |
| 3-3 TEMPERATURE DRIFT(TC) | ±50ppm/Max-20℃~70℃ |
| 3-4 SHUNT CAPACITANCE(C0) | 7.0pF/Max |
| 3-5 MOTIONAL CAPACITANCE(C1) | N/A |
| 3-6 INSULATION RESISTANCE | 500MQmin/DC100V±15V(Lead to lead ,case |
| 3-7 AGING RATE PER YEAR: | ±5ppm/Year |
100ºC±5ºC for 168 hours
SEALING TIGHTNESS
Helium Bombing:0.4~0.5MPa Time:1 hour
Temperature: 85℃ ± 5℃ Time 96 hours
Electrical characteristics shall be satisfied. Without distinct looseness of terminals.
Pre-Heating:125℃ 60~120 Seconds Solder temperature: 245± 5℃ Time: 20±5 sec
Provided that measurement shall be carried out after letting it alone at room temperature for 1 hour.
Electrical characteristics shall be satisfied after dropping two times from the
height of 50cm onto the hardWood
Electrical characteristics shall be satisfied after supplying the following vibration.
a). ENTIRE FREQUENCY RANGE 20 to200Hz, full-wave
b). Sweep/Cycle: 2min
c). Amplitude: (Peak to Peak) 1.5 mm
d). DIRECTION X.Y.Z
e)Duration: 4min,4 times in each direction:48min
Temperature: 235±5℃ Time: 10±1 sec
100ºC±5ºC for 168 hours
SEALING TIGHTNESS
Helium Bombing:0.4~0.5MPa Time:1 hour
Temperature: 85℃ ± 5℃ Time 96 hours
SOLDERING HEAT RESISTANCE
Electrical characteristics shall be satisfied. Without distinct looseness of terminals.
Pre-Heating:125℃ 60~120 Seconds Solder temperature: 245± 5℃ Time: 20±5 sec
联系人：Katya Vane
手机：+86-18884136031
电话：+86-28-80192520
邮箱：sales@xtalong.com
地址： No.4 of XinHang Road, West of High-tech zone, Chengdu City 611731, China
