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Littelfuse 2920L400/15MR 2920L400
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Littelfuse 2920L400 / 15MR
- Type
- LITTELFUSE
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 2920L400/15MR
- Electronic Component
- 1
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.235g
- Electronic Component
- 1
- Electronic Component
- 4s
- Electronic Component
- BM0000001096
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 15V
- Power(Pd)
- 1.5W
- Current(Imax)
- 40A
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
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：2920L400/15MR 自恢复保险丝
1. 产品简介
2920L400/15MR 是 Littelfuse（美国力特）公司旗下的一款高性能聚合物自恢复保险丝，专为表面贴装应用而设计。这款保险丝能够在检测到过载或短路条件时快速切断电流，保护电路和负载的安全。其额定电压为15V，最大持续电流可达到40A，同时具备良好的耐高温性能，可在-40°C至85°C的范围内稳定工作。
2. 基本参数
- 安装类型：表面贴装型
- 最大跳断电流 (It)：8A
- 初始电阻 (Ri)：最小值10 mOhms
- 跳断后电阻(R1)：最大值40 mOhms
- 尺寸：长0.290" x 宽0.202" (7.36mm x 5.12mm)
- 跳断时间：4秒
- 最大电流：40A
- 最大电压：15V
- 最大保持电流 (Ih)：4A
- 最大厚度：0.063" (1.60mm)
- 类型：聚合物
3. 工作原理
2920L400/15MR 自恢复保险丝采用了聚合物技术，能够在发生过载时敏感响应。其设计允许在短时间内（约4秒内）监测到超过设定的跳断电流（8A），及时切断电流流通从而保护电路不受损坏。在电流恢复至安全范围后，该保险丝将自动复位恢复正常工作，避免了传统保险丝需要更换的问题。
4. 应用领域
2920L400/15MR 保险丝广泛应用于多个领域：
- 消费电子：如手机、平板电脑等小型电子设备。
- 工业设备：保护各种工控设备及自动化设备的安全。
- 电信设备：为网络设备和连接器提供保障。
- 汽车电子：用于汽车内各种电气系统的保护。
- 可再生能源：在太阳能逆变器和风力发电设备中，提供过载保护。
5. 性能优势
- 自恢复特性：避免了频繁更换保险丝的问题，提升了设备的可靠性和维护便捷性。
- 快速响应：高效的跳断机制可在4秒内切断过载电路，保护设备免受损害。
- 广泛的温度范围：可在-40°C至85°C的工作环境下稳定运行，满足各种苛刻条件下的应用需求。
- 低电阻：初始电阻为10 mOhms，确保在正常工作状态下有极低的电力损耗。
6. 安装和配置
2920L400/15MR 设计为表面贴装型，便于在生产线中进行快速安装。使用时需注意其最大电流和电压限制，确保电路设计时考虑到安全性能。同时，适当的散热和通风将对保险丝的长期使用性能有所帮助。
7. 结论
总体来说，2920L400/15MR 自恢复保险丝是一个非常可靠且高效的保护元件，凭借其出色的技术特点和广泛的应用范围，适合现代电子设备在安全性与稳定性上的需求。作为Littelfuse的产品，它不仅体现了行业领先的技术水平，也为设计工程师提供了一个值得信赖的解决方案。
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