WMSIC Electronic Components

BOURNS SF-1206S050-2

ModelSF-1206S050-2
Package1206
BrandBOURNS
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BOURNS SF-1206S050-2
Type
BOURNS
Minimum package
5000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
SF-1206S050-2
Electronic Component
1
Electronic Component
1.6mm
Package
1206
Type
SMD Fuse
Electronic Component
Non-Resettable Fuse
Electronic Component
0.032g
Electronic Component
3.2mm
Electronic Component
0.6mm
I2t
0.03
Electronic Component
1
Electronic Component
50A
Electronic Component
BM0257053264
Operating Temperature
20℃~+105℃

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

SF-1206S050-2 产品概述

一、概述

SF-1206S050-2 为 BOURNS 出品的贴片慢断(慢熔)保险丝,封装为业界通用的1206(尺寸约 3.2 mm × 1.6 mm)。该器件额定电流 0.5 A、额定电压 63 V,工作温度范围 -20 ℃ 至 +105 ℃,采用陶瓷基体封装,适配卷盘(T/R)自动贴装。设计用于在允许短时浪涌电流的同时,在持续过流或短路情况下可靠断开电路,常用于对启动浪涌敏感的电源与电子系统。

二、主要参数

  • 类型:贴片式慢断保险丝(Slow Blow / Time‑Delay)
  • 额定电流:0.5 A
  • 额定电压:63 V
  • 工作温度:-20 ℃ ~ +105 ℃
  • 熔断能量(I²t):0.03(单位常用 A²s,表示熔断时释放的能量)
  • 分断能力:50 A(在额定电压条件下的最大开断能力)
  • 大小:1206(约 3.2 mm × 1.6 mm)
  • 封装/包装:1206 外形,陶瓷封装,T/R 卷盘供料

三、产品特性

  • 慢断特性:能够承受短时高峰浪涌(如电容充电或电机启动)而不立即断开,减少误熔断的概率。
  • 陶瓷封装:提高了断开时的能量承受能力与热稳定性,有助于在高应力条件下可靠开断且抑制飞溅。
  • 高分断能力:50 A 开断能力,适合常见低压直流与交流保护场景,降低在短路情况下对系统的二次损坏风险。
  • 小型化 SMD 封装:适配自动化贴装与回流焊工艺,利于高密度 PCB 设计与批量生产。

四、典型应用

  • 开关电源输入保护与输出侧保护
  • 充电器、电池管理与便携设备保护
  • LED 驱动、电机控制与家电电子模块的浪涌/过流保护
  • 通信设备、工业控制与仪器仪表的短路防护

五、安装与使用注意事项

  • 焊接工艺:兼容常规 SMD 回流焊流程;建议在设计时遵循器件制造商的回流温度曲线以避免封装应力。
  • PCB 布局:应保留适当的焊盘尺寸与热量信号以保证良好焊接,同时避免靠近高温元件或强热源,影响保险丝性能。
  • 环境与散热:长期工作温度靠近上限(+105 ℃)时,器件寿命与额定性能可能受影响,建议在设计时考虑良好散热与空气流通。
  • 储存与搬运:避免受潮污染与机械冲击,贴片器件在回流前保持干燥存放以防焊接缺陷。

六、可靠性与安全性

SF-1206S050-2 的陶瓷结构与较高的分断能力使其在发生短路时能可靠切断故障电流并限制能量传递(I²t = 0.03),降低对下游电路的热冲击风险。器件适用于要求可重复装配与自动化生产的工业环境。实际应用中建议根据产品安全规范与系统需求选择合适的保护等级与冗余策略。

七、订购信息与包装

型号:SF-1206S050-2,品牌:BOURNS,封装:1206,包装:卷盘(T/R)。在批量采购时请确认生产批次与质量文件(如样品测试报告、可靠性数据)以满足项目验收与供应链一致性要求。

如需更详细的曲线(时间-电流特性曲线、回流焊建议曲线、热参数)或 PCB 参考焊盘尺寸,请提供具体设计要求或联系 BOURNS 官方数据手册以获取权威资料。

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