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Littelfuse 1812L110/33MR 1812L110
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 1812L110 / 33MR
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 1812L110/33MR
- Electronic Component
- 1
- Electronic Component
- 3.41mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.088g
- Electronic Component
- 4.73mm
- Electronic Component
- 2mm
- Electronic Component
- 1
- Electronic Component
- 500ms
- Electronic Component
- BM69413852
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 33V
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：1812L110/33MR 聚合物 PTC 自恢复保险丝
一、基本信息
1812L110/33MR 是由美国力特（Littelfuse）公司生产的一款聚合物 PTC（正温度系数）自恢复保险丝，适用于对电路进行过流保护。其主要应用场景包括电源管理、电池保护、充电器及其他电子设备的过流防护。具备长时间保持稳定电流和快速响应过流的特性，有效提高了电子设备的安全性和可靠性。
二、主要参数
- 工作温度范围：-40°C 至 +85°C
- 最大电压：33V
- 最大电流：20A
- 保持电流：1.1A（最大值），意味着在此电流下，保险丝不会跳断；一旦电流超过此阈值，保险丝将自动断开。
- 跳断电流：1.95A，此为启动保护的电流阈值，超过此电流将导致保险丝跳断，迅速保护电路。
- 跳断电阻值：最大200mΩ，这确保了保险丝在跳断后不会造成过多的能量损耗。
- 初始电阻值：最小60mΩ，表示在正常工作条件下，保险丝的电阻状态。
三、设计特点
自恢复功能：聚合物 PTC 自恢复保险丝在电流返回到安全水平以下后，可以自动恢复到正常工作状态，无需更换。这种特性能显著降低维护成本和器件更换频繁的问题。
表面贴装设计：1812（4532公制）封装，便于自动化生产和组装，适合现代电子设备的制造需求。
小型化与高效性：保险丝的尺寸为0.179" x 0.128"（4.55mm x 3.24mm），厚度最大为0.079"（2.00mm），的确能为设计师在空间受限的环境中提供灵活的选择，同时保证高效的热管理和安全性。
四、应用场景
1812L110/33MR 主要应用于各类电子设备的保护，如：
- 消费电子：智能手机、平板电脑、便携式音响等设备。
- 电源管理：在电源模块或充电器中，保持设备正常工作，防止过流损害。
- 电池保护：防止电池在异常情况下引起的短路或过流问题，确保使用过程的安全性。
- 汽车电子：广泛应用于车载电子设备，适应苛刻的环境温度，实现可靠性保护。
五、总结
1812L110/33MR 聚合物 PTC 自恢复保险丝凭借其优异的工作温度范围、适中的电流和电压规格、以及自恢复特性，为现代电子产品提供了极大的保护。通过有效抑制过流风险，不仅增进了设备的安全性，还简化了维护流程。力特公司的这一产品为设计人员提供了一种灵活、高效且经济的保护解决方案，适应当今快速发展的电子市场需求。 作为市场中优质的自恢复保护器件之一，1812L110/33MR 在未来的电子设计中必将发挥重要作用。
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