WMSIC Electronic Components

Littelfuse 015401.5DRT

Model015401.5DRT
PackageSMD,10.62×3.81mm
BrandLittelfuse
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Littelfuse 015401.5DRT
Type
LITTELFUSE
Minimum package
1500

Technical parameters

Electronic Component
LITTELFUSE
Electronic Component
015401.5DRT
Electronic Component
1
Electronic Component
5.03mm
Package
SMD,10.62×3.81mm
Type
SMD Fuse
Electronic Component
Non-Resettable Fuse
Electronic Component
0.553g
Electronic Component
9.73mm
Electronic Component
3.81mm
Electronic Component
1
Electronic Component
50A
Electronic Component
BM0229962943
Operating Temperature
55℃~+125℃
Voltage
125V
Current
1.5A

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

015401.5DRT 产品概述

一、产品简介

015401.5DRT 属于 Littelfuse 154 系列 OMNI‑BLOK® 贴片式延时保险丝,额定电流 1.5 A、额定电压 125 V。该器件为贴片结构并配备保险丝座(SMT Fuse & Holder),在保持表面贴装工艺优势的同时便于更换与检修,适用于需要抗浪涌、允许短时过流的保护场合。

二、主要规格与尺寸

  • 额定电流:1.5 A
  • 额定电压:125 V
  • 分断能力:50 A(在额定电压条件下)
  • 类型:Time‑Lag(延时/慢断)
  • 工作温度:-55 ℃ ~ +125 ℃
  • 本体尺寸:约 9.73 × 5.03 × 3.81 mm(长 × 宽 × 高)
  • 封装参考:SMD(厂商标注参考尺寸 10.62 × 3.81 mm,含座位参考)
  • 品牌:Littelfuse(美国力特)

三、性能特点

  • 延时动作特性:对启动浪涌、电容充电或电机启动瞬态具有良好容忍能力,避免因短暂过流而误断。
  • 高分断能力:可在较高短路电流条件下安全分断(50 A),适用于工业与网络电源保护。
  • 宽温度范围:-55 ℃ 至 +125 ℃,适应低温至高温恶劣环境,可靠性高。
  • 贴片+座位设计:支持表面贴装生产流程,同时保险丝座便于现场更换,提高维护效率。

四、典型应用

  • 开关电源与直流母线保护(≤125 V 系统)
  • 工业控制与驱动电源,特别是含有电机或大电容负载的电路(需延时特性)
  • 通信与网络设备的电源入口保护
  • LED 驱动、电池管理与逆变器保护(符合电压限制范围)
  • 测试设备与仪表中需要快速更换保险丝的模块化设计

五、选型与使用建议

  • 若电路存在较大启动电流或短时浪涌,应优先选择延时(Time‑Lag)类型以避免误跳闸;反之需快速切断短路时,应考虑快断型。
  • 在设计时应考虑环境温度对额定电流的影响并进行适当降额(derating),以避免长期工作过热导致寿命缩短或早期动作。
  • 关注 I2t 能量值与熔断曲线,在选择保险丝配合上游器件(如限流元件、热敏元件)时确保协调保护。
  • 请参考 Littelfuse 官方数据表确认最大熔断时间、保持电流、瞬时动作特性及可靠性参数,必要时在样机上进行温升与寿命测试。

六、封装与安装建议

  • 该型号为 SMT 形式并配备保险丝座,适用于自动贴装与回流焊流程,但仍建议严格按照厂商推荐的焊接温度曲线与座位设计进行。
  • 在 PCB 设计时,依据厂商提供的推荐焊盘尺寸与样式布置焊盘及固定孔,确保焊点可靠且便于后期更换。
  • 对于需要频繁更换的维护场合,可利用保险丝座实现无锡焊更换,减少对 PCB 的热应力。

七、包装与订购信息

  • 常见包装形式为卷带(Tape & Reel)适配贴片机装配,同时也可按需提供带座的散装或托盘包装。
  • 订购时请确认完整料号 015401.5DRT 与数量,同时核对是否需要带座版本或仅保险丝本体。
  • 建议在最终设计前获取并阅读 Littelfuse 官方数据手册与认证信息,以确保满足安全与法规要求。

总结:015401.5DRT 以其 1.5 A 的额定电流、125 V 的额定电压与延时特性,结合贴片加座位的实用封装,为要求浪涌容忍且便于维护的电源与保护电路提供了可靠的解决方案。选型时应结合实际电路的浪涌、I2t 及温度环境进行综合评估。

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