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Littelfuse 2920L330/24MR 2920L330
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Littelfuse 2920L330 / 24MR
- Type
- LITTELFUSE
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 2920L330/24MR
- Electronic Component
- 1
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.183g
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0000003182
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 24V
- Power(Pd)
- 2W
- 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：2920L330/24MR 聚合物-PTC自恢复保险丝
一、产品简介
2920L330/24MR 是由美国力特（Littelfuse）公司生产的一款聚合物正温度系数（PTC）自恢复保险丝，专为保护电路免受过流损害而设计。这款保险丝尤其适用于工作电压为24V、最大工作电流为40A的相关应用场景，如消费电子、汽车、工业设备和传感器等。
二、基本参数
- 最大工作电压: 24V
- 最大电流: 40A
- 跳阀动作电流（It）: 5.5A
- 保持电流（Ih）: 最大3.3A
- 熔断时间: 5秒
- 初始电阻（Ri）: 最小15毫欧
- 跳断后电阻（R1）: 最大55毫欧
- 工作温度范围: -40°C 到 85°C
- 封装类型: 表面贴装型（SMD）
- 封装尺寸: 2920（7351公制），即0.290英寸长 x 0.202英寸宽，厚度最大为0.079英寸（2.00mm）。
三、产品特点
自恢复特性: 2920L330/24MR 利用聚合物PTC材料的特性，在过载或短路情况下，电流出现异常时，该保险丝会迅速跳断电路，限制电流并保护后续电路元件。一旦恢复至安全电流值，保险丝会自动复位，无需更换，显著提高了维护的便利性和系统的整体可靠性。
高耐热性和广泛的工作温度: 产品设计能够在极端温度条件下正常操作，从-40°C 到 85°C的宽温域使其适合各种严苛环境下的应用需求，确保在非理想情况下仍能提供稳定的保护。
低阻抗设计: 初始电阻低至15毫欧，确保在正常工作状况下，电流能高效传导，极大降低能量损耗。跳断后的电阻相对较高，确保跌至安全范围后的有效绝缘。
小型化封装: 2920尺寸的设计，使其适配各种电路板布局，特别适合空间受限的应用场景。表面贴装型的配置简化了生产流程，适合现代制造技术。
四、应用场景
2920L330/24MR广泛应用于多种场合，包括但不限于：
- 消费电子产品: 手机、平板、笔记本电脑等便携设备，给予供电部分的安全保护。
- 汽车电子: 用于电动车、智能汽车的电源管理和信号系统，保障整个电气系统在异常情况下的电流安全。
- 工业设备: 工厂自动化控制板、传感器等提供电流过载保护，减少设备损坏风险。
- 通信设备: 网络交换机、路由器及数据存储设施，确保数据传输稳定且安全。
五、总结
2920L330/24MR 聚合物-PTC自恢复保险丝提供了一种高效、可靠的解决方案，旨在保护电路防止过流造成的潜在损害。其自恢复、低阻抗特性及强大的工作温度范围使其成为现代电子产品和设备设计中不可或缺的重要组成部分。选用2920L330/24MR，不仅可以大大提高设备的安全性和可靠性，也为终端用户提供了更好的使用体验，是行业内值得信赖的选择。
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