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RUILON SMD1206P200TF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON SMD1206P200TF
- Type
- RUILON
- Minimum package
- 3500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- SMD1206P200TF
- Electronic Component
- 1
- Electronic Component
- 1.9mm
- Package
- 1206
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.033g
- Electronic Component
- 3.6mm
- Electronic Component
- 1mm
- Electronic Component
- 1
- Electronic Component
- 1.5s
- Electronic Component
- BM0246700687
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 6V
- Power(Pd)
- 800mW
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMD1206P200TF 产品概述
一、产品简介
SMD1206P200TF（RUILON 瑞隆源）是一款1206封装的自恢复多层聚合物过流保护器（PTC），适用于6V及以下电源系统的过流和短路保护。器件在常态下具有极低阻值，遇过流时自动增阻限流，故障消除后可自动恢复，便于重复使用，适合消费电子、通信和汽车电子等领域。
二、主要电气参数
- 最大耐压（Vmax）：6V
- 最大瞬时电流（Imax）：35A（短时脉冲能力）
- 保持电流（Ihold）：2A（器件可长期承载而不跳闸的电流）
- 跳闸电流（Itrip）：3.5A（典型动作电流）
- 消耗功率（Pd）：800mW（额定功耗）
- 初始态阻值（Rmin）：15mΩ
- 跳断后阻值（R1max）：80mΩ
- 动作时间：1.5s（典型）
- 工作温度范围：-40℃ ~ +85℃
三、工作原理与关键特性
该器件利用聚合物PTC材料特性：在正常工作电流下表现为低阻抗（约15mΩ），当电流超过Ihold并上升至Itrip附近时，内部温度升高导致材料电阻陡增（跳闸后可达80mΩ），从而限制电流并保护下游电路。故障解除并冷却后，器件电阻恢复到初始状态，实现自恢复保护。器件可承受较高的瞬时浪涌电流（Imax），适合含短脉冲负载的系统。
四、尺寸与封装
- 封装：SMD 1206
- 长度：3.6 mm
- 宽度：1.9 mm
- 厚度/高度：1.0 mm
紧凑的SMD封装便于自动贴片与回流焊加工，适合高密度板级布局。
五、典型应用场景
- 移动设备与便携式电源输入口过流保护（6V系统）
- USB/Docking与外围接口防短路保护
- 逆变器、DC-DC模块的输入端保护
- 电池供电模块、充电电路的过流防护
六、使用建议与注意事项
- 选型时以系统正常工作电流小于或等于Ihold为原则，若工作电流长期接近Ihold，应选用额定更高的型号以避免误动作。
- Imax为短时脉冲能力，频繁靠近或超过该值会降低元件寿命。
- 动作时间1.5s为典型值，实际动作受环境温度、散热条件和电流波形影响。高环境温度会降低器件承载能力。
- 建议将元件放置在靠近电源入口或保护对象处，保证良好散热路径并避免与高温元件并列封装。
- 焊接与回流：遵循制造商推荐的回流温度曲线，避免超出器件耐热限制以免性能退化。
七、可靠性与维护
自恢复保险丝属于消耗性保护元件，经过大量动作或在极端环境下可能出现初始阻值上升或跳闸特性漂移。为保证系统长期稳定，应在设计阶段留有一定余量，必要时进行加速老化与循环测试以评估寿命。
总结：SMD1206P200TF以其小尺寸、低初始阻值和可重复自恢复特性，适合在6V级别电源系统中实现可靠的过流保护。通过合理的选型与布局，可在不牺牲系统性能的前提下提供有效保护。若需更详细的电特曲线、热阻和回流工艺参数，请参考厂商数据手册或联系RUILON技术支持。
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