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Littelfuse 0407005.WR 0407005
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 0407005.WR
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 0407005.WR
- Electronic Component
- 1
- Electronic Component
- 1.6mm
- Package
- 1206
- Type
- SMD Fuse
- Electronic Component
- Non-Resettable Fuse
- Electronic Component
- 0.163g
- Electronic Component
- 3.2mm
- Electronic Component
- 0.835mm
- I2t
- 7.8
- Electronic Component
- 1
- Electronic Component
- 50A
- Electronic Component
- BM0229969058
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
0407005.WR 产品概述
一、产品定位与概述
0407005.WR 是 Littelfuse（美国力特）的一款贴片式微型熔断器，采用 1206（3.2 mm × 1.6 mm）封装，属于 T‑LAG（时间延迟 / 慢断）型保护器件。其设计用于对电路过流和短路故障提供可靠保护，同时允许短时浪涌电流通过而不发生误熔断，适合对浪涌有一定容忍需求的便携与工业电子设备。
（注：所给基础参数中额定电压存在两处说明不一致——一处为 32 V，描述中有“63V”字样。请在最终选型前以厂方数据手册或样品标注为准。）
二、主要电气参数
- 额定电流：5 A
- 额定电压：32 V（请确认是否为 63 V）
- 熔断 I2t：7.8（典型，单位按厂方数据手册为 A²s）
- 分断能力：50 A（典型峰值短路开断能力）
- 类型：贴片式熔断器，时间延迟（T‑LAG）
三、机械与环境特性
- 封装尺寸：1206（约 3.2 mm × 1.6 mm）
- 工作温度范围：-55 ℃ 至 +150 ℃
- 适合表面贴装工艺，需按厂家推荐回流焊温度曲线焊接
四、产品特点与优势
- 微型化封装，节省 PCB 面积，适用于空间受限的系统设计；
- T‑LAG 特性使其对短时浪涌有良好耐受性，减少误熔断，适合启动电流或瞬态脉冲较大的电路；
- 宽温度范围与较高的分断能力，提升在工业与车规类应用中的可靠性；
- Littelfuse 品牌保证，质量与一致性可追溯。
五、典型应用场景
- 移动设备、平板、笔记本及 USB/充电电路输入保护；
- 电池管理与便携电源保护；
- 工业控制器、通信设备及消费电子的板级过流保护；
- 对瞬态浪涌有容忍需求的电源模块与接口电路。
六、选型与使用注意事项
- 核实额定电压：32 V 与 63 V 的差异会显著影响适用场景与安全裕度；请以官方数据手册为准；
- 长期工作电流建议参考厂方热稳定性曲线，避免在额定值附近持续工作以防热漂移；通常在额定电流的 60%~80% 范围内有更佳长期可靠性（以具体曲线为准）；
- 焊接与回流：遵循 Littelfuse 的回流温度曲线与湿度处理规定，避免超过推荐峰值温度和时间；
- 设计 PCB 焊盘时考虑热阻与散热路径，确保在高电流下器件不过热；
- 在需要更高分断能力或更快动作的场合，考虑替代型号或并联/保护级联方案。
七、封装与采购信息
- 封装：1206 SMD；品牌：Littelfuse（美国力特）；型号标识：0407005.WR。
- 采购时请确认完整型号、额定电压与时间特性，并索取最新数据手册和认证资料以满足应用与法规要求。
如需我为您查找并比对 Littelfuse 官方数据手册、或根据具体应用（工作电流、启动浪涌、电压等级）推荐相近型号与 PCB 封装建议，请提供应用场景与目标环境。
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