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Littelfuse RXEF020
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse RXEF020
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 500 袋
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- RXEF020
- Electronic Component
- 1
- Package
- Through-hole, P=5.1mm
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.11g
- Electronic Component
- 1
- Electronic Component
- 2.2s
- Electronic Component
- BM0057144817
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 72V
- Power(Pd)
- 410mW
- Current(Imax)
- 40A
- 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.
RXEF020 产品概述
产品名称: RXEF020
类型: 聚合物 PTC（正温度Coefficient）自复保险丝
一、基本参数
RXEF020 是一款高性能的聚合物自复保险丝，特别设计用于72V及以下的电压系统，并能够承受最大40A的电流，适用于多种电气与电子设备。其保持电流（Ih）为200mA，当遇到过流情况时，跳断电流（It）设定为400mA。保险丝在受过载时可保持有效的保护作用，并且在断开后，经过一定时间会自动复位，从而避免了更换保险丝的麻烦。
- 最大电压: 72V
- 最大电流: 40A
- 保持电流 (Ih): 200mA
- 跳断电流 (It): 400mA
- 跳断时间: 2.2秒
- 初始电阻 (Ri): 最小1.83Ω
- 跳断后电阻 (R1): 最大4.4Ω
二、环境适应性
RXEF020 设计用于在-40°C 至 85°C 的极端温度范围内工作，适合在各种环境中使用，如汽车电子、工业设备和消费电子产品。该保险丝的耐温性确保了在高温或低温条件下，其性能的稳定性，能够有效保护设备不因过流而损坏。
三、结构与安装
此款保险丝的结构采用径向圆片式封装，大小为0.291"（7.4mm）直径，0.118"（3.0mm）厚，最大安装高度为0.461"（11.7mm），引线间距为0.199"（5.05mm）。这一设计使它能够方便地安装在各种电路板上，并简化了组装工艺。
RXEF020 采用通孔安装的方式，适合各种需要一种有效、实用保护的场合，保证了连接的牢固性和稳定性。
四、应用场景
RXEF020 PTC自复保险丝广泛应用于多个领域，包括：
- 汽车电子: 保护电动汽车（EV）、混合动力汽车（HEV）及传统燃油车的电池管理系统，防止过流损坏电子元器件。
- 消费电子: 用于移动设备、家用电器、计算机及其外设，确保在异常工作环境下安全运行。
- 工业设备: 在工业自动化控制系统中，保护传感器和执行器等重要部件，降低设备故障率，提高系统可靠性。
- 电源管理: 在电源供应及分配系统中，提供有效的过流保护，确保电气安全。
五、品牌及制造商背景
RXEF020 由美国力特（Littelfuse）公司生产，力特致力于为全球提供安全性、可靠性及保护性的产品。力特在保险丝、过电流保护解决方案方面具有丰富的经验和深厚的技术积累，产品广泛应用于全球各大知名企业。
六、总结
RXEF020聚合物PTC自复保险丝是一款设计优良、性能卓越的安全保护元器件。凭借其独特的自复特性、广泛的应用范围和卓越的耐温性能，该产品为各种电子设备提供稳固的过流保护，确保设备的安全稳定运行，降低因过载带来的系统风险，是电气系统设计中不可或缺的保护元件。
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