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BOURNS 3214W-1-104E
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS 3214W-1-104E
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 250 圆盘
Technical parameters
- Power
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- 5
- Electronic Component
- 3214W-1-104E
- Electronic Component
- 1
- Package
- SMD-3P,4.8x3.5mm
- Electronic Component
- Resistor / positions
- Electronic Component
- ±10%
- Electronic Component
- 0.8g
- Electronic Component
- 100kΩ
- Electronic Component
- 1
- Electronic Component
- BM0257202357
- Electronic Component
- ±100ppm/℃
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
3214W-1-104E 产品概述
一、产品简介
3214W-1-104E 为 BOURNS 出品的一款表面贴装可调电阻（多圈电位器），以小型化、多圈精调为设计目标。器件采用 SMD-3P 封装，外形尺寸为 4.8 × 3.5 mm，适合空间受限的现代电子产品在生产线上实现自动贴装与回流焊工艺。其典型阻值为 100 kΩ，结合 5 圈设计，可实现细致的电阻调节与重复定位。
二、主要参数与特性
- 阻值：100 kΩ
- 精度（初始容差）：±10%
- 最大功率耗散：250 mW（器件功率需按实际环境与散热条件进行降额）
- 温度系数：±100 ppm/℃（良好的温度稳定性，适合对温漂有一定要求的场合）
- 圈数：5（多圈结构，便于进行精确微调）
- 封装：SMD-3P，外形尺寸 4.8 × 3.5 mm
- 品牌：BOURNS（业界知名，可追溯的质量与一致性保障）
多圈设计带来更高分辨率的调整能力，适合需要精细校准的电路。较小的尺寸与 SMD 封装利于自动化贴装与高密度 PCB 布局。
三、典型应用场景
- 精密模拟电路的偏置/增益微调（如运放补偿、积分时间常数调整）
- 传感器/测量前端的零点与灵敏度校准
- 电源与参考电压的微调与设定
- 消费类便携设备与物联网终端中的参数微调，受限空间内实现精确设定
- 工业控制与仪表中对长期稳定性有一定要求但功耗较低的调节场合
四、装配与使用建议
- 功率与热管理：器件额定功率为 250 mW，实际使用时建议按环境温度与 PCB 散热条件进行降额，以保证长期可靠性。避免在接近额定功率下长期工作。
- 焊接工艺：采用标准回流焊工艺进行贴装，遵循 BOURNS 或 PCB 制造商推荐的温度曲线，避免局部过热导致性能改变。
- 调整操作：多圈结构适合使用适配的微型调节工具（精密螺丝刀或调节笔）进行缓慢、均匀的旋转，避免用力过猛或使用非配套工具导致损伤。
- 布局建议：为便于调节与散热，建议在 PCB 布局时预留适当空间以方便调节器件，并考虑与高热源器件保持一定距离。
五、可靠性与注意事项
- 温度漂移：±100 ppm/℃ 的温度系数在一般工业与消费类应用中提供良好稳定性，但在极端温度环境或高精度测量系统中仍需结合外部校准手段。
- 寿命与重复性：多圈结构的机械寿命通常取决于制造工艺与使用条件，建议避免频繁重调。
- 环境适应：若用于高湿、腐蚀性气氛或强振动环境，应评估是否需要额外防护或选择更高等级的元件。
总结：3214W-1-104E 以其小尺寸、多圈精调与良好温度特性，适合在空间受限但需要精确调节与稳定性的电子产品中使用。按规范的焊接与使用建议进行设计与装配，可在大量工业与消费类应用中获得可靠表现。若有更具体的电路参数或环境要求，建议参考 BOURNS 官方规格书以获取完整电气与机械特性数据。
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