X321532768KGD2SI
Manufacturer
Model
X321532768KGD2SI
Category
The C620155 32.768kHz SMD crystal provides a cost-effective timing solution with ±20ppm stability, suitable for consumer electronics and industrial systems. Its RoHS compliance and -40°C to +85°C operation enable widespread use in automotive and medical devices, while careful thermal management and ESD protection are critical for reliable performance.
Reference Pricing
Reference Stock
Specifications
| Frequency Accuracy | ±10ppm, ±20ppm, or specify |
| Load Capacitance | 7pF, 9pF, 12.5pF, or specify |
| Load Resistance | Not specified |
| Operating Temperature Range | -20~+70°C, -40~+85°C, or specify |
| Package Type | SMD3215-2P |
| Quality Factor | ±10ppm, ±20ppm, or specify |
| Resonant Frequency | 32.768KHz |
| Temperature Coefficient | (-0.03±0.01)*10°/°℃² |
Function And Role
Core Function
Generate precise clock signals for timing applications
Key Characteristics
- 32.768kHz frequency with ±20ppm tolerance at room temperature
- 12.5pF load capacitance
- Surface Mount Crystal (SMD3215-2P) packaging
- Operating temperature range: -40°C to +85°C
- RoHS compliant
Application Domains
Basic Scenarios
- Timekeeping devices (watches, calculators)
- Consumer electronics (IoT devices, remote controls)
- Low-frequency communication systems
Extended Scenarios
- Automotive navigation systems
- Medical devices requiring stable timing
- Industrial control systems
- GPS receivers and Beidou modules
Precautions
| Soldering | Use fine-pitch SMD soldering techniques; avoid thermal shock |
| Current Limit | Max current not specified (typical 1-5mA range for crystals) |
| Voltage Limit | Operating voltage range not specified (typically 2-3.6V for SMD crystals) |
| Thermal Management | Ensure proper heat dissipation in high-temperature environments |
| Storage | Store in antistatic packaging; avoid moisture exposure |
| Risk Warnings |
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Alternative Model Params
- Frequency (32.768kHz ±1ppm preferred)
- Load capacitance (12.5pF ±1pF tolerance)
- Packaging type (SMD3215-2P or equivalent)
- Operating temperature range (-40°C to +85°C)
- RoHS compliance certification
Design Recommendations
| Layout | Maintain 10-15mm trace length between crystal pins and oscillator circuit |
| Thermal | Use decoupling capacitors within 5mm of crystal pins |
| Compatibility | Verify with microcontroller clock modules pre-certified for 32.768kHz |
| Testing | Perform frequency accuracy testing at 25°C and 85°C under load |
Market Positioning
| Strengths |
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| Weaknesses |
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