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BOURNS TC33X-2-105E
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS TC33X-2-105E
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 2500 圆盘
Technical parameters
- Power
- 100mW
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- 1
- Electronic Component
- TC33X-2-105E
- Electronic Component
- 1
- Package
- SMD-3P,3.8x3.6mm
- Electronic Component
- Resistor / positions
- Electronic Component
- ±25%
- Electronic Component
- 0.057g
- Electronic Component
- 1MΩ
- Electronic Component
- 1
- Electronic Component
- BM0257677129
- Electronic Component
- ±250ppm/℃
- 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.
TC33X-2-105E 产品概述
一、产品简介
TC33X-2-105E 为 BOURNS 品牌的一款表面贴装可调电阻（电位器）元件，标称阻值 1MΩ，单圈结构（1 turn），适用于需要微调阻值或设定基准电压的场合。外形为 SMD-3P 三端 SMT 型，典型尺寸约 3.8×3.6 mm，体积小巧，适合集成度较高的电路板设计。
二、主要参数
- 阻值：1 MΩ
- 精度（出厂容差）：±25%
- 最大功耗：100 mW（板上使用需考虑散热与环境温度）
- 温度系数：±250 ppm/℃
- 圈数：1（单圈）
- 引脚数/封装形式：SMD-3P（表面贴装三端）
- 品牌：BOURNS
注：封装细节（如厚度、焊盘布局）请以官方数据手册为准。
三、性能特点
- 小型化：3.8×3.6 mm 典型尺寸，节省 PCB 空间，便于贴片自动化生产。
- 可调性：单圈调节，适合一次性或偶尔校准场景。
- 温度稳定性适中：±250 ppm/℃ 的温度系数在一般非高精度应用中表现良好。
- 低功耗：100 mW 的额定功率提示应避免长时间在高功率条件下工作，必要时进行功率降额设计。
- 容差较宽：±25% 表明该型号偏向成本与尺寸优化的修调元件，而非高精度电阻网络。
四、典型应用
- 电路板上的一次性或现场调校（偏置、增益、零点校正等）。
- 低频信号路径的微调或分压器应用（需注意容差与噪声要求）。
- 电源管理小功率调整、传感器偏置设定。
不建议用于高精度测量或高功耗负载场景。
五、安装与使用建议
- 采用符合 SMT 工艺的回流焊流程，避免超过厂商推荐的焊接温度曲线。
- 布局时为调节工具留足可接触空间，必要时在 PCB 上预留测试点或调节孔。
- 考虑功率降额：在高环境温度下应按额定功率的温度系数进行降额计算并留有裕量。
- 使用时避免强烈机械应力或反复扭动，单圈结构寿命有限，频繁调节会加速磨损。
六、选型与可靠性注意事项
- 若需更高精度或更低温漂，请优先选择更高精度或更低 ppm/℃ 的型号。
- 对封装、焊盘尺寸、调节 torque、寿命（循环次数）等具体机械电气参数有要求时，应参照 BOURNS 官方数据手册或直接咨询供应商，避免因引用不完整数据造成设计风险。
如需我帮忙查找官方数据手册或给出 PCB 焊盘建议和回流温度曲线参考，可提供后续支持。
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