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Brightking SMD1812B260TF/16 SMD1812B260TF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMD1812B260TF / 16
- Type
- 1812
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMD1812B260TF/16
- Electronic Component
- 1
- Electronic Component
- 3.41mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.178g
- Electronic Component
- 4.73mm
- Electronic Component
- 2.1mm
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0257365939
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 16V
- Power(Pd)
- 1.2W
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMD1812B260TF/16 产品概述
一、产品简介
SMD1812B260TF/16 是台湾君耀（Brightking）出品的一款1812封装自恢复保险丝（聚合物PTC）。该器件用于对过流、短路等异常工况提供自动断开保护，在故障移除后能自动恢复导通，适合移动设备、电源及各种板载保护场合。外形尺寸符合1812 SMD 标准，便于自动贴装与回流焊工艺。
二、主要参数
- 型号：SMD1812B260TF/16
- 品牌：Brightking（台湾君耀）
- 封装：1812（长×宽×高 = 4.73mm × 3.41mm × 2.1mm）
- 耐压（Vmax）：16 V
- 最大电流（Imax）：100 A（指短时冲击/峰值能力）
- 保持电流（Ihold）：2.6 A
- 跳闸电流（Itrip）：5 A（5 秒动作时间）
- 消耗功率（Pd）：1.2 W
- 初始态阻值（Rmin）：15 mΩ
- 跳断后阻值（R1max）：50 mΩ
- 工作温度：-40 ℃ ~ +85 ℃
三、特性与优势
- 自恢复功能：在过流或短路被清除后能自动恢复，免去更换保险丝的维护成本。
- 低初始阻值：Rmin = 15 mΩ，保证正常工作时压降小、发热低。
- 明确的动作参数：Ihold 2.6 A、Itrip 5 A（5 s），便于在设计中定义保护点。
- 小型SMD封装：1812尺寸兼容自动贴装，适合集成化、体积受限的电路板。
- 宽温度范围：-40～+85 ℃ 满足多数工业与消费类应用环境。
四、典型应用场景
- USB、Type-C、移动电源等便携设备的短路/过流保护；
- 电源输入与分配线路的板级保护；
- 锂电池组与充电模块的过流保护；
- 家电控制板、通信设备与工业控制模块等需自动复位保护的场合。
五、PCB布局与安装注意事项
- 建议把自恢复保险丝放置在电源入口或靠近被保护器件的一侧，以减少导线与走线上的额外电压降与发热。
- 对于高功率场合，应留出足够散热空间，避免器件长期靠近高温元件。
- 回流焊工艺需按供应商推荐曲线进行，避免过长高温暴露影响可靠性。
- 焊盘设计、锡膏量与回流参数会影响热传导与动作特性，量产前应进行实测验证。
六、选型与可靠性提示
- Imax 为短时冲击能力，不可作为长期工作电流使用；长期电流应以 Ihold 为依据，并留有裕量（一般可考虑 20%~30% 余量）以避免温升导致误动作。
- 在高环境温度或密闭空间内，应考虑温度对 Ihold/Itrip 的影响，必要时选择额定更高的型号或增加散热措施。
- 设计时建议进行实际温升、动作时间与复位测试，确保在目标使用工况下满足保护要求。
- 量产采购时关注批次与曲线一致性，必要时向制造商索取特性曲线与可靠性报告。
SMD1812B260TF/16 以其明确的保护参数、紧凑封装与自恢复特性，适合多种对体积与可靠性有要求的电源保护应用。
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