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Littelfuse 2920L250DR
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 2920L250DR
- 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
- 2920L250DR
- Electronic Component
- 1
- Electronic Component
- 5.44mm
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.183g
- Electronic Component
- 7.98mm
- Electronic Component
- 1.25mm
- Electronic Component
- 1
- Electronic Component
- 10s
- Electronic Component
- BM0265750613
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 15V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
2920L250DR 产品概述
概述
2920L250DR是由全球知名电子元器件制造商Littelfuse（美国力特）生产的一款聚合物正温度系数（PTC）自恢复保险丝，专为电流保护设计，广泛应用于电气设备、消费电子、和工业领域。该产品具有卓越的电流承载能力和自恢复特性，使其在保护电路方面表现出色。
基本参数
- 工作温度范围：-40°C 至 85°C，适合于各种环境条件下的应用。
- 材料类型：聚合物，确保了产品的轻便性和高效性。
- 最大电压：15V，满足低压应用的需求。
- 最大电流：40A，适合高电流应用环境。
- 保持电流：2.5A，能够在此电流水平下正常工作，无需跳闸。
- 跳断电流：5A，当电流超过此水平时，保险丝将迅速切断电路以保护设备。
- 跳断电阻值（最大）：85mΩ，确保有效的电流管理。
- 初始电阻值（最小）：35mΩ，提供良好的导电性能。
封装和尺寸
2920L250DR采用表面贴装型设计，封装规格为2920（7351公制），凹陷型。其尺寸为：
- 长度：0.289英寸（7.35mm）
- 宽度：0.202英寸（5.12mm）
- 厚度（最大值）：0.049英寸（1.25mm）
此紧凑型封装和设计使得2920L250DR非常适合于空间受限的电路板，能够有效节省原材料，使整体设计更为精简。
保护特性
2920L250DR的自恢复特性是其最显著的优点之一。当电流超过跳闸电流（5A）时，保险丝的电阻会迅速增加，从而切断电路，防止过载和短路造成的损坏。一旦故障解除，设备的电流降低至保持电流（2.5A）以下，保险丝会自动恢复至导通状态，从而使设备重新工作，无需更换保险丝，这在长期使用中大大节约了维护成本。
应用场景
2920L250DR广泛应用于多种场合，包括：
- 消费电子设备：比如智能手机、平板电脑和机顶盒，提供耐用和高效的电流保护。
- 工业设备：如电动机驱动系统和自动化设备，确保在意外过载情况下仍然安全可靠。
- 电池保护：在锂电池和其他电池管理系统中，用于保护电池不受过流影响，延长电池寿命。
- 家用电器：如微波炉、电烤箱等，保障设备在高负载时的安全性。
结论
2920L250DR聚合物PTC自恢复保险丝代表了现代电流保护技术的一次重要进步。其优异的工作特性和可靠的安全性能，使其成为各类设备理想的保护解决方案。Littelfuse作为行业领导者，凭借其专业的技术团队和严格的质量控制，确保了2920L250DR在各种应用场合下都能提供稳定的表现。无论是在严苛的工业环境还是日常消费电子中，该产品都能为用户提供更高效、更安全的保障。
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