-40C to 85C, 高度：3.8+/-0.3mm, X49SM4MSD2SI, 49SMD/HC-49SMD，表面贴片，4MHZ，20PF，20PPM，编带；制造商：YXC
X49SM4MSD2SI,
Surface Mount Crystal Oscillator; 4MHz; 20PF; 20PPM; Height：3.8+/-0.3mm; -40C to 85C Operating/Storage Temperature;
49SMD晶振; 4MHz; 20PF; 20PPM; -40~+85℃; 24mm编带;谐振电阻≤120Ω; 年老化≤3ppm; 绝缘电阻≥500MΩ;高度：3.8+/-0.3mm;
X49SM4MSD2SI是YXC公司X49SM4M系列的工业温度版（-40C to 85C）与商业温度版（-20C to 70C）X49SM4MSD2SC兼容。
This product is hermetically sealed and not moisture sensitive.
Features：
Surface mount, HC-49SMD package (SMD metal Can) ,
120 ohm max. ESR,
1000 pieces/reel,
drive level: 100uW typical, 500uW maximum,
Vibration Mode: Fundamental AT;
frequency tolerance: +/-20 ppm;
stability:+/-20 ppm;
Shunt capacitance: 7 pF;
Load capacitance: 20 pF;
aging: +/-3 ppm/year max.;
Insulation Resistance: ≥500MΩ
External dimensions: 11.4mm L x 4.8mm W x 3.8 mm H.
ROHS compatible, ISO 9001 certified Manufacturer.
Lead-free reflow profile:
160C~180C preheat 120 seconds max.
Peimary heat: 220C 60 seconds max.
Peak: 260C 10 seconds max.
Dimension of the Crystal:
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Construction of Quartz Resonator:
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| 参数名称 | 参数值 |
|---|
| 等效串联电阻（ESR） | 120Ω |
| 晶振类型 | 49SMD |
| 主频 | 4MHz |
| 频率公差 | ±20ppm |
| 负载电容值 | 20pF |
| 工作温度 | -40℃ ~ +85℃ |
