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Littelfuse 1812L020/60DR 1812L020
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 1812L020 / 60DR
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 1812L020/60DR
- Electronic Component
- 1
- Electronic Component
- 3.41mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.088g
- Electronic Component
- 4.73mm
- Electronic Component
- 1.25mm
- Electronic Component
- 1
- Electronic Component
- 2s
- Electronic Component
- BM0265679988
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 60V
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：Littelfuse 1812L020/60DR
一、产品基本信息
Littelfuse推出的1812L020/60DR是一款高性能的聚合物正温度系数（PTC）自恢复保险丝，专为保护电子设备免受过流和短路等损害而设计。该产品具备出色的电气特性以及广泛的应用场景，特别适用于各种需要可靠过流保护的电子电路。
二、基本参数
- 工作温度范围：-40°C至85°C
- 材料类型：聚合物
- 最大电压：60V
- 初始电阻值（Ri）：最小1.4Ω
- 跳断电阻值（R1）：最大4.4Ω
- 保持电流（Ih）：最大200mA
- 跳闸电流（It）：400mA
- 最大电流：40A
- 最大动作时间：2秒
- 安装类型：表面贴装型
- 封装类型：1812（4532公制），凹陷结构
- 尺寸：0.179"长 x 0.128"宽（4.55mm x 3.24mm）；厚度最大值为0.049"（1.25mm）
三、产品特性
1. 高可靠性
作为一款自恢复保险丝，1812L020/60DR具有优异的过流保护能力。当电流超过设定值（跳闸电流400mA）时，保险丝迅速断开电路，防止对后续元器件的损害。同时，在过流状况解除后，保险丝会自动恢复工作状态，无需更换，大大降低了维护成本。
2. 宽广的工作温度范围
该产品的工作温度范围为-40°C至85°C，适合于多种恶劣环境下的应用，使其在工业设备、家电、通信设备等领域展现出极强的适应性。
3. 额定电压和电流支持
随着最大电压为60V和最大电流为40A，1812L020/60DR能够满足大部分小型电子设备的需求，尤其适合在电源管理、充电电路及电池保护等场景的应用。
4. 低初始和跳断电阻
初始电阻值最低可达1.4Ω，可以有效降低设备的能量损耗。而跳断后电阻最大为4.4Ω，确保在故障情况下的安全性。
四、应用场景
Littelfuse 1812L020/60DR在多个领域都有广泛应用，包括但不限于：
- 消费电子：如手机、平板电脑、笔记本电脑等设备的电源保护。
- 家电产品：如微波炉、冰箱、洗衣机等，确保设备在异常状态下的安全。
- 工业设备：如PLC、传感器等，保护设备免受电流过载的影响。
- 汽车电子：在汽车电子控制系统中应用，保护电路不受短路和过载损害。
五、安装和兼容性
由于采用表面贴装型设计，1812L020/60DR能够轻松集成到各种电路板中。其1812（4532公制）封装尺寸确保与其他SMD元件相容，方便设计师在PCB布局时的灵活性。
六、总结
综上所述，Littelfuse的1812L020/60DR自恢复保险丝以其卓越的保护特性和极佳的工作环境适应能力，为各种电子设备提供了可靠的过流保护。结合其合理的价格和良好的可用性，是设计工程师在选择电路保护元件时的理想选择。这款保险丝不仅能够有效防止因过流引发的潜在安全隐患，还能为设备正常运行提供更高的安全保障。
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