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BOURNS 3224W-1-200E
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BOURNS 3224W-1-200E
- Type
- BOURNS
- Minimum package
- 250 圆盘
Technical parameters
- Power
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- 12
- Electronic Component
- 3224W-1-200E
- Electronic Component
- 1
- Package
- SMD-3P,4.8x3.5mm
- Electronic Component
- Resistor / positions
- Electronic Component
- ±10%
- Electronic Component
- 0.448g
- Electronic Component
- 20Ω
- Electronic Component
- 1
- Electronic Component
- BM0257202363
- Electronic Component
- ±100ppm/℃
- Electronic Component
- Electronic Component
- Electronic Component
- 250
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
3224W-1-200E 产品概述
一、产品简介
3224W-1-200E 是 BOURNS 出品的一款 SMD 可调电阻（多圈微调电位器），标准阻值 20Ω，标称功率 250mW，精度 ±10%，温度系数 ±100ppm/℃，圈数 12 圈，封装标注为 SMD-3P，外形尺寸约 4.8×3.5mm。该器件专为板上微调、校准与增益/偏置微调设计，体积小、调节精细，适用于空间受限且对调节分辨率有要求的电子产品。
二、主要特点
- 阻值：20Ω（标称）；公差 ±10%；
- 功率额定：250mW（在规定环境与散热条件下）；
- 温度特性：±100ppm/℃，适合对温漂有一定要求的应用；
- 调节特性：12圈多圈设计，提供更细的调节分辨率与稳定性；
- 封装：SMD-3P，尺寸约 4.8×3.5mm，适合集成化的 PCB 设计。
三、典型应用场景
- 放大器偏置与增益微调、传感器零点校准、滤波器调试；
- 电源模块的稳压/限流微调、精密测量仪器的标定；
- 移动设备、消费电子与通信终端中对微调精度与体积有要求的场合。
四、PCB 设计与安装建议
- 采用三垫片布局（3-PAD），保持与器件脚位一致；推荐在器件周围预留适当焊盘与热散区域；
- 推荐使用无铅回流焊工艺，遵循供应商给出的回流温度曲线以避免内部应力或性能退化；
- 安装后避免在调节轨迹上施加机械拉力或扭力，尽量通过工具端正调节，防止漂移或损坏。
五、使用与可靠性注意事项
- 调节时按圈数缓慢旋转以获得稳定读数，12 圈设计提供较高的分辨率但需避免过度用力；
- 在高温环境或靠近热源区域应对器件进行功率降额处理以保证长期可靠性；
- 清洗时避免使用强腐蚀性化学剂，必要时采用制造商推荐的清洗工艺。
六、选型与替代方案建议
选择时应核对完整型号与规格书（3224W-1-200E 对应 20Ω 标称），如需更高精度、不同阻值或更大功率，可考虑同系列或其他多圈微调器件。对于需要更低温漂的场合，可选用温度系数更优的型号；对体积或成本有更高约束时，可权衡单圈与多圈方案。
注：以上为基于给定参数的概述，具体电气机械参数、潮湿与焊接规范请以 BOURNS 官方规格书为准。
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