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BOURNS SF-1206F700-2
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS SF-1206F700-2
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- SF-1206F700-2
- Electronic Component
- 1
- Electronic Component
- 1.6mm
- Package
- 1206
- Type
- SMD Fuse
- Electronic Component
- Non-Resettable Fuse
- Electronic Component
- 0.033g
- Electronic Component
- 3.2mm
- Electronic Component
- 0.6mm
- I2t
- 3.25
- Electronic Component
- 1
- Electronic Component
- 50A
- Electronic Component
- BM0258639950
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SF-1206F700-2 产品概述
一、产品简介
SF-1206F700-2 为 BOURNS 品牌的贴片式板载自恢复/一次性（根据设计）保险丝，采用 1206（公制 3216）封装，专为紧凑型电子设备的过流保护设计。该器件额定电流 7A、额定电压 32VDC，适用于直流供电系统中对线路或负载的过流和短路保护要求。
二、主要技术参数
- 类型：贴片式保险丝（板载）
- 额定电流：7A
- 额定电压：32VDC
- 工作温度范围：-20℃ ～ +105℃
- 熔断 I2t：3.25（具体单位与测量条件请参照厂商完整规格书）
- 最大分断能力：50A
- 封装尺寸：1206（长度 3.2mm × 宽度 1.6mm）
- 品牌：BOURNS
三、性能与特性
- 紧凑封装：1206 小型化封装利于高密度 PCB 布局，适合空间受限的便携式及嵌入式设备。
- 响应特性：较低的 I2t 值表明在过流事件中能较快熔断，限制能量传递，减小对下游器件的冲击（具体熔断时间-电流曲线请参考厂商曲线）。
- 分断能力：50A 的分断能力可在常见短路条件下保护电路并保证自身可靠动作。
- 宽温工作：-20℃ 至 +105℃ 的工作温度范围适应多种工业与消费类环境，但在极端环境下应基于实际测试结果进行可靠性验证。
四、典型应用场景
- 通信设备与路由器的电源保护
- 工业控制与仪表的直流线路保护
- 消费电子（平板、笔记本电源管理模块等）
- 汽车电子（需确认汽车级规范适配性）
- 电池供电系统和充电设备的短路/过流防护
五、封装与机械安装建议
- 封装为标准 1206（3.2 × 1.6 mm），建议在 PCB 布局中预留与器件制造商推荐的焊盘尺寸和布局，以确保可靠的焊接和热循环性能。
- 推荐采用常规 SMD 回流工艺，但具体回流温度曲线与焊接工艺参数应以厂商的焊接可靠性资料为准，以避免元件性能退化。
- 贴片方向与散热路径的设计会影响器件的温升与额定电流能力，布局时应考虑周边铜箔面积和散热通道。
六、使用注意事项与选型建议
- 不要超出额定电流与额定电压使用；若存在短时电流冲击（如启动浪涌），需对照熔断曲线判断是否满足应用。
- 若系统存在重复的高能短路场景或高频脉冲，建议参考厂家更详细的 I2t 与时间-电流特性，或选择更高分断能量或不同动作特性的器件。
- 在关键安全或汽车类应用中，确认是否满足相应认证与环境试验要求；必要时与供应商沟通获取认证与测试报告。
- 并联使用时需谨慎：并联并非总能线性增加额定电流，可能造成不均流与可靠性问题，请优先选择单个满足电流需求的型号或咨询厂商。
七、可靠性与验证
在量产前，建议在目标应用环境下进行热循环、振动、焊接后可靠性和实际短路条件下的功能验证。获取并参考 BOURNS 官方规格书与应用说明书，确保器件在指定条件下的长期稳定性与安全性。
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