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Littelfuse 1812L075PR
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 1812L075PR
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 1812L075PR
- Electronic Component
- 1
- Electronic Component
- 3.41mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.088g
- Electronic Component
- 4.73mm
- Electronic Component
- 0.75mm
- Electronic Component
- 1
- Electronic Component
- 200ms
- Electronic Component
- BM0000280102
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 13.2V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：1812L075PR 聚合物 PTC 自恢复保险丝
一、产品简介
1812L075PR 是由美国力特（Littelfuse）公司生产的一款聚合物 PTC 自恢复保险丝，特别设计用于保护电路免受过载和短路的影响。其具备高达 13.2V 的最大电压和 100A 的最大电流容量，非常适合用于各种电子设备和电路中，尤其是在电源管理、消费电子和工业应用领域。
二、产品特点
优秀的保护性能：1812L075PR 能够在发生过载情况下迅速断开电路，最大跳断电流为 1.5A，确保设备免受损坏。
自恢复功能：与传统熔断器不同，该自恢复保险丝在故障消除后能够自动恢复其导通状态，无需更换，极大地减少了维护成本和停机时间。
耐高温设计：其工作温度范围为 -40°C 到 85°C，使得该元件能够在严苛的环境条件下稳定工作，适应不同的工业及消费应用。
低电阻值：初始电阻值最低可达 100mΩ，最大跳断后电阻值为 450mΩ，能够在正常工作情况下提供高效的能量传输。
紧凑的表面贴装设计：采用 1812 (4532 公制) 的封装尺寸，长度为 4.55mm，宽度为 3.24mm，厚度最大为 0.75mm 使其适合各种电路板的密集布置。
三、应用领域
1812L075PR 聚合物 PTC 自恢复保险丝适用于多种应用，包括但不限于：
- 消费电子：如手机、平板、电子玩具等。为微处理器和其他敏感电子元器件提供过流保护。
- 工业设备：在电气传动、PCB 保护和电池管理系统中用于防止电气过载。
- 通讯设备：在各种通信模块和设备中提供可靠的保障，防止过电流导致的损坏。
- 汽车电子：特别适用于车载电气系统，如车载音响、GPS 导航等，确保安全和稳定性。
四、技术参数详细分析
- 最大电压：13.2V，是设计用于中低电压电路的理想选择。
- 最大电流：100A，能够承受较高电流瞬态，适应多种动态负载的需求。
- 保持电流（Ih）：最高为 750mA，表明在确保设备正常运行时的安全电流阈值。
- 跳断电流（It）：1.5A 的跳断电流设定，可以快速响应电气故障，减少潜在损坏风险。
- 最大动作时间：200ms，快速切断故障电流，保证设备及时恢复正常状态。
五、使用注意事项
在选择和使用 1812L075PR 时，需要注意以下几点：
- 确保电路中施加的电压不超过最大额定值 13.2V，以避免损坏。
- 安装位置应保持良好的散热条件，以减少高温对元器件的影响。
- 尽量避免在保险丝工作时存在过多的瞬时峰值电流，以延长其使用寿命。
六、结论
1812L075PR 聚合物 PTC 自恢复保险丝是一款可靠、有效且经济的电子保护解决方案，适用于多种应用场合。其自恢复特性和优秀的电流管理能力使得它在现代电子器件的电路保护中占据了重要的地位。选择力特的产品，能为您的电子设备提供长效的保护和安心的使用体验。
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