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Brightking SMD1210B075TF
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMD1210B075TF
- Type
- BRIGHTKING
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMD1210B075TF
- Electronic Component
- 1
- Electronic Component
- 2.8mm
- Package
- 1210
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.02g
- Electronic Component
- 3.43mm
- Electronic Component
- 0.85mm
- Electronic Component
- 1
- Electronic Component
- 100ms
- Electronic Component
- BM0264881723
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 6V
- Power(Pd)
- 600mW
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMD1210B075TF — 自恢复保险丝（1210 封装，750mA，6V）
一、产品简介
SMD1210B075TF 是 Brightking（台湾君耀）出品的一款表面贴装型自恢复聚合物正温度系数（PTC）保险元件，封装规格为 1210，适用于便携式设备和各类电子电源线路的过流保护。该器件在过流时迅速升阻限流，故障消除后自动恢复，便于重复使用与维护。
二、主要参数
- 额定耐压（Vmax）：6 V
- 最大瞬时电流（Imax）：100 A（短时冲击）
- 保持电流（Ihold）：0.75 A（750 mA）
- 跳闸电流（Itrip）：1.5 A
- 功耗（Pd）：600 mW
- 初始态阻值（Rmin）：70 mΩ
- 跳断后阻值（R1max）：400 mΩ（动作后高阻态）
- 动作时间：≤100 ms
- 工作温度：-40 ℃ ~ +85 ℃
- 外形尺寸：3.43 mm × 2.8 mm × 0.85 mm（1210 封装）
三、产品特点与优势
- 快速动作：100 ms 级别响应，可迅速限制短路或突发过流。
- 自恢复设计：故障解除后阻值恢复，免更换，降低维护成本。
- 低初始阻抗：70 mΩ 初始阻值对正常工作影响小，电压降低。
- 紧凑封装：1210 SMD 体积小，适合高密度 PCB 布局与自动化贴装。
- 宽温度范围：适应工业级环境（-40 ℃ 至 +85 ℃）。
- 品牌保证：Brightking（台湾君耀）制造，质量与一致性有保障。
四、典型应用
- USB、充电口与便携设备电源保护
- 电池保护与充电管理电路
- 工业与通讯设备的过流保护
- LED 驱动、笔记本电源与适配器输入防护
- 需要可重复过流保护的板级保护场景
五、选型与使用建议
- 选择时保持 Ihold 大于正常最大连续工作电流，建议留有裕量以避免误触发（常用 1.1–1.5 倍裕量，视环境温度而定）。
- 注意环境温度对 Ihold 的影响，高温会降低元件保持电流，应按最高工作温度下的特性选择。
- 避免长期在接近 Ihold 条件下工作，以减少误动作与寿命损耗。
- 布局时确保充足的铜箔散热和焊盘面积，良好热散设计有助于提高动作稳定性与寿命。
- 推荐遵循厂商的回流焊工艺说明进行贴片封装，避免超过推荐温度曲线导致性能退化。
六、可靠性与注意事项
- 多次触发后器件的高阻态特性可能会有所变化（跳断后阻值上限为 400 mΩ），长期频繁跳闸会影响保护效果，应排查根本故障。
- 本器件适合过流限制与保护，但不替代快速断开的熔断器用于完全隔离危险短路的场合。
- 使用前请参考 Brightking 官方数据手册以获取完整的电气、热性能曲线与焊接规范。
如需针对具体电路（工作电流、环境温度、冲击电流等）进行选型或验证建议，可提供电路参数，我可协助给出更精确的选型与布局建议。
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