SC-32S32.768kHz20PPM12.5pF
Manufacturer
Model
SC-32S32.768kHz20PPM12.5pF
Category
The Seiko SC-32S32.768kHz20PPM12.5pF is a precision SMD3215-2P crystal optimized for timing applications requiring ±20ppm stability at 32.768kHz. It features 12.5pF load capacitance and operates within industrial temperature ranges, making it suitable for wearables, RTOS, and IoT devices. Critical design considerations include soldering at controlled temperatures, thermal management with decoupling capacitors, and verification of oscillator driver compatibility. While it offers superior precision and compliance, its higher cost and limited stock availability represent key market limitations.
Reference Pricing
Reference Stock
Specifications
| Frequency Accuracy | ±20×10-6 |
| Load Capacitance | 7pF, 9pF, 12.5pF |
| Load Resistance | 70kΩ Max. |
| Operating Temperature Range | -40～+85°C |
| Package Type | SMD3215-2P |
| Quality Factor | Not provided |
| Resonant Frequency | 32.768kHz |
| Temperature Coefficient | (3.0±1.0 )x10-8/℃2 |
Function And Role
Core Function
Generate precise timing signals for frequency control in electronic devices
Key Characteristics
- ±20ppm frequency tolerance
- 12.5pF load capacitance
- SMD3215-2P surface-mount packaging
- 32.768kHz base frequency
Application Domains
Basic Scenarios
- Watches and wearables
- Real-time operating systems (RTOS)
- Industrial timers
Extended Scenarios
- IoT devices
- Medical equipment
- Military communication systems
Precautions
| Soldering | Use fine pitch soldering tools and avoid thermal overload (max 2.5s per pad) |
| Current Limit | Max operating current 10mA |
| Voltage Limit | Absolute max voltage 50V |
| Thermal Management | Thermal resistance 40C/W, ensure proper heat dissipation |
| Storage | Store in dry environment below 30C with anti-static packaging |
| Risk Warnings |
|
Alternative Model Params
- Frequency tolerance (ppm)
- Load capacitance (pF)
- Packaging type
- Operating temperature range
Design Recommendations
| Layout | Maintain 10mm trace length between crystal and oscillator |
| Thermal | Use decoupling capacitors within 5mm radius |
| Compatibility | Verify oscillator IC driver capability (min 1mA drive current) |
| Testing | Perform frequency stability testing at -40C to +85C |
Market Positioning
| Strengths |
|
| Weaknesses |
|
Datasheet
Assist inquiry
Distributors
Shenzhen Baimilin Electronic Co., Ltd.
Shenzhen Changhexing Technology Co., Ltd.
Shenzhen Dongchengxing Electronic Co., Ltd.
Shenzhen Dingjia Rong Technology Co., Ltd.
Shenzhen Gaodeng Road Technology Co., Ltd.
Shenzhen Xinduobang Electronics Co., Ltd.
Shenzhen RenGuang Technology Co., Ltd.
Dongguan Heyi Yang Electronic Technology Co., Ltd.
Shenzhen Jiawei Xin Electronic Co., Ltd.
Shenzhen Kexinrui Technology Co., Ltd.
Shenzhen Kexinde Electronic Co., Ltd.
LITUO Technology Co., Ltd.
Shenzhen Taikowei Microelectronics Co., Ltd.
Shenzhen Nanyutong Electronic Co., Ltd.
Shenzhen Quan Sheng Hua Electronic Co., Ltd.
Jia Shengwei (Shenzhen) Electronics Co., Ltd.
Shenzhen Kefengda Technology Co., Ltd.
Shenzhen Longfa Sheng Electronic Trading Co., Ltd.
Shenzhen Zhengyuanfang Technology Co., Ltd.
Shenzhen Nuolianya Technology Co., Ltd.
Shenzhen Futian Xianghe Electronic Trading Co., Ltd.
Shenzhen Chengdingye Technology Co., Ltd.
Shenzhen Yuekeyuanxing Technology Co., Ltd.
Shenzhen Futian District Zhaomei Microelectronics Merchants