X49SM8MSD2SC
Manufacturer
Model
X49SM8MSD2SC
Category
The 8MHz HC-49S-SMD surface mount crystal (C12674) offers precise timing solution with ±30ppm stability and 20pF load capacitance, ideal for consumer electronics and industrial systems within -20°C to +70°C. Its cost efficiency at bulk quantities and high stock availability make it suitable for time-sensitive projects, while design considerations include proper thermal management and soldering profiles to maintain frequency accuracy.
Reference Pricing
Reference Stock
Specifications
| Frequency Accuracy | ±10ppm, ±20ppm, or specify |
| Load Capacitance | 12pF, 20pF, or specify |
| Load Resistance | Not specified |
| Operating Temperature Range | -20~+70°C, -40~+85°C, or specify |
| Package Type | HC-49S-SMD |
| Quality Factor | ATFundamental |
| Resonant Frequency | 3.2768~32MHz |
| Temperature Coefficient | ±20ppm, or specify |
Function And Role
Core Function
Provide precise clock signals for electronic systems
Key Characteristics
- 8MHz frequency with ±20ppm tolerance at normal temperature
- ±30ppm frequency stability
- 20pF load capacitance
- Surface Mount HC-49S-SMD package
- -20°C to +70°C operating temperature range
Application Domains
Basic Scenarios
- Consumer electronics (IoT devices, wearables)
- Industrial control systems
- Telecommunications equipment
Extended Scenarios
- Medical devices requiring precise timing
- Automotive infotainment systems
- Military communication equipment
Precautions
| Soldering | Use 280-300°C reflow soldering with 20-30s peak time |
| Current Limit | Max 10mA drive current |
| Voltage Limit | 2V-3.6V operating range |
| Thermal Management | Avoid prolonged operation above +70°C |
| Storage | Store in antistatic packaging below 30°C |
| Risk Warnings |
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Alternative Model Params
- Frequency tolerance (ppm range)
- Load capacitance (pF specification)
- Package type (HC-49S-SMD compatibility)
- Operating temperature range
Design Recommendations
| Layout | Maintain 5mm trace length between crystal pins |
| Thermal | Use 0.5W thermal relief in PCB design |
| Compatibility | Ensure oscillator circuit matches 20pF load |
| Testing | Verify frequency stability with 10ppm precision |
Market Positioning
| Strengths |
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| Weaknesses |
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