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RUILON SMD1210P050TF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON SMD1210P050TF
- Type
- RUILON
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- SMD1210P050TF
- Electronic Component
- 1
- Package
- 1210
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.039g
- Electronic Component
- 1
- Electronic Component
- 100ms
- Electronic Component
- BM0093074037
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 13.2V
- Power(Pd)
- 600mW
- Current(Imax)
- 30A
- Electronic Component
- Electronic Component
- Electronic Component
- 4000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMD1210P050TF 自恢复保险丝（RUILON 瑞隆源）
一、产品简介
SMD1210P050TF 是 RUILON（瑞隆源）出品的一款表面贴装自恢复式PTC保险元件，封装规格为1210。该器件在发生过流或短路时通过内部阻值升高限制电流，故障解除并冷却后能自动恢复到低阻状态，适用于多种低压电源保护场合。
二、主要性能参数
- 跳闸后阻值 R1max：900 mΩ
- 初始态阻值 Rmin：180 mΩ
- 耐压 Vmax：13.2 V
- 跳闸电流 Itrip：1 A（典型）
- 保持电流 Ihold：500 mA
- 最大电流 Imax：30 A（短时耐受）
- 动作时间：100 ms
- 消耗功率 Pd：600 mW
- 工作温度范围：-40 ℃ ~ +85 ℃
- 封装：1210 SMD
三、主要特点与优点
- 自动复位：过流停限后无需更换，恢复原状降低维护成本。
- 低初始阻抗：Rmin 仅 180 mΩ，可在不显著影响电路供电的情况下提供保护。
- 快速动作：约 100 ms 内响应，有效抑制短路与突发过流。
- 宽温区适用：-40~+85 ℃，适合多种环境。
- 适合低压系统：Vmax 13.2V，兼容 12V 汽车电子与一般直流电源场合。
四、典型应用场景
- 汽车电子（12V 子系统）、车载摄像头、车载信息娱乐系统（需确认 EMC 与温度条件）。
- USB、充电器、便携式设备的短路/过流保护（注意 Vmax 限制）。
- 工业控制、LED 驱动器、仪表供电线路的过流保护。
- 电池保护与模块化电源板上作为一级限流元件。
五、使用与选型建议
- 连续工作电流应低于 Ihold（500 mA），否则器件可能持续处于高阻态影响供电。
- 若系统存在大幅余流或瞬态浪涌，需确认 Itrip（1 A）与 Imax（30 A）关系：Imax 为短时耐受能力，不代表长期通过能力。若启动电流或浪涌接近或超出 Itrip，会触发保护。
- 考虑环境温度与散热：高温环境下 Ihold 与 Itrip 会变化，建议在+85 ℃附近留有裕量或进行实际温度下测试。
- 布局建议：靠近被保护源头放置，周围留出热隔离空间，避免热耦合导致误触发。焊盘与回流工艺按1210规范处理以保证可靠焊接。
- 若电路为高可靠或高功率场合，可并联或选型更高额定值的PTC，但并联自恢复保险丝需谨慎评估不均流影响。
六、封装与可靠性
1210 SMD 尺寸便于自动贴装与回流焊接，适合批量生产装配。器件通过材料与制造工艺实现重复动作的可靠性，典型工作寿命受环境温度和过流次数影响。设计时应考虑到其热循环与机械应力，以确保长期稳定性。
总结：SMD1210P050TF 以低初始阻值、快速响应和自动复位为特点，适合 12V 级别及低压电子系统的过流保护。选型时应重点关注 Ihold 与 Itrip 的匹配、工作电压限制（13.2V）以及环境热管理。
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