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BOURNS MF-R160
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS MF-R160
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 500 袋装
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- MF-R160
- Electronic Component
- 1
- Package
- Through-hole
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.493g
- Electronic Component
- 10.2mm
- Electronic Component
- 1
- Electronic Component
- 8s
- Electronic Component
- BM0264532944
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 30V
- Power(Pd)
- 900mW
- Current(Imax)
- 40A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MF-R160（BOURNS）产品概述
一、产品简介
MF-R160 是 BOURNS 出品的一款径向插件型自恢复保险（PTC Resettable Fuse），额定耐压 30V，适用于需要过流保护并能自动复位的直流电源线路。器件在过流后会迅速升阻限流，故障解除后可自行恢复，免去更换一次性熔断器的维护工作。
二、主要电气参数
- 耐压（Vmax）：30V
- 最大脉冲电流（Imax）：40A（视脉冲宽度与热环境而定）
- 保持电流（Ihold）：1.6A（在此电流及以下器件维持低阻态）
- 跳闸电流（Itrip）：3.2A（在该或更高电流下器件进入高阻态）
- 功耗（Pd）：900mW（指器件在稳定工作时的允许功耗）
- 初始电阻（Rmin）：55mΩ（室温未跳闸时）
- 跳断后最大电阻（R1max）：150mΩ（恢复前的高阻态）
- 动作时间：8s（典型条件下达到跳闸阈值所需时间）
- 工作温度范围：-40℃ 至 +85℃
- 长度：10.2mm；封装：径向插件（Through-hole）
三、主要特性与优势
- 自恢复：过流后自动进入高阻限流状态，故障消除后恢复导通，节省维护成本。
- 快速响应与温度稳定性：典型动作时间 8s，宽温区间（-40~85℃）保证工业与消费类产品的可靠性。
- 低初始阻值（55mΩ），对正常工作下的压降影响小。
- 插件封装便于波峰焊或手工焊接，适配传统 PCB 生产工艺。
四、典型应用
适用于 USB 电源保护、便携电池组、充电器、电机驱动输入保护、LED 驱动与背光电路、通信设备与工业控制电源等所有需要过流自恢复保护的直流系统。
五、选型与设计建议
- 保持电流 Ihold 应略高于电路正常最大工作电流，留有裕量以避免误动作。
- 跳闸电流 Itrip 与系统短路容忍能力匹配，确保在故障时能可靠限流。
- 注意环境温度对 Ihold/Itrip 的影响：高温时保持电流会下降，必要时进行热降额。
- 对于重复或长时间的大电流脉冲，虽然 Imax 达 40A，但应参考脉冲宽度与散热条件，避免超过器件的热极限。
六、安装与可靠性注意事项
- 插件封装便于安装，但建议避免直接靠近高温元件或热源，以减小误动作风险。
- 焊接时遵循厂商的焊接工艺规范，避免过热导致材料老化；如需波峰焊或回流焊，请参考原厂资料确认工艺窗口。
- 设计 PCB 时为该器件留出散热空间并避免局部过高密度元件堆叠，提高热稳定性与寿命。
七、总结
MF-R160 以其 30V 耐压、1.6A 保持电流与 3.2A 跳闸电流的组合，适合中小功率直流系统的过流自恢复保护。其低初始阻值与插件封装使其在便携设备、电源模块与工业控制等领域具有广泛适用性。选型时应综合考虑工作电流、环境温度及短时脉冲特性，按厂商数据与实际测试结果进行验证。若需进一步的焊接规范或性能曲线，建议查阅 BOURNS 官方数据手册。
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