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BHFUSE BSMD0805-100-6V BSMD0805
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD0805-100-6V
- Type
- BHFUSE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD0805-100-6V
- Electronic Component
- 1
- Electronic Component
- 1.5mm
- Package
- 0805
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.025g
- Electronic Component
- 2.2mm
- Electronic Component
- 1.2mm
- Electronic Component
- 1
- Electronic Component
- 100ms
- Electronic Component
- BM0225978016
- 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.
BSMD0805-100-6V 自恢复保险丝 产品概述
一、特性概述
BSMD0805-100-6V（BHFUSE 佰宏）是一款0805封装的自恢复热敏保险元件，适用于低压电源保护与短路/过流防护。器件体积小、自动复位、响应快，适合对空间和成本敏感的便携设备与消费电子应用。
二、主要参数
- 型号：BSMD0805-100-6V（BHFUSE）
- 封装：0805（尺寸：宽1.5mm × 长2.2mm × 高1.2mm）
- 初始态阻值 Rmin：40 mΩ
- 跳断后阻值 R1max：270 mΩ
- 额定耐压 Vmax：6 V
- 保持电流 Ihold：1 A
- 跳闸电流 Itrip：2 A
- 最大电流 Imax（瞬态）：40 A
- 动作时间：100 ms（典型）
- 功耗 Pd（最大稳态耗散）：600 mW
- 工作温度：-40 ℃ ~ +85 ℃
三、工作原理与性能要点
该器件基于聚合物正温度系数材料（PPTC）原理：当通过电流在正常工作范围（≤ Ihold）时，元件阻值保持较低（Rmin），功耗小；当电流超过 Itrip 时，器件升温、阻值迅速上升至 R1max，从而限制电流，起到保护作用；故障解除并降温后可自动复位。Vmax = 6 V，适用于低压电路，Pd = 600 mW 表示器件在指定环境温度下的最大稳态耗散能力。
四、选型与应用建议
- 常规工作电流应低于 Ihold（1 A），以避免长期热应力导致阻值漂移或频繁跳闸。
- 瞬态浪涌电流可容许的短时间峰值靠近 Imax（40 A），但不应用于长时间通过。
- 若电路存在较大持续电流或更高工作电压，应选择更高电流或更高电压等级的型号；本件仅适用于≤6 V 系统。
- 注意环境温度影响：高温会降低 Itrip 与 Ihold 的裕量，设计时需进行热裕度退让。
五、布局与装配注意
- 建议将保险丝靠近电源输入端或保护点贴装，以缩短关键回路热耦合路径。
- 采用标准SMT工艺回流焊贴装，遵循厂商回流曲线并避免超温或过长加热时间。
- 焊盘设计应保证良好热量散布并避免在元件下方形成热积聚区。
六、可靠性与测试建议
- 在目标环境温度下进行 I-T 曲线和反复跳闸测试，确认在预期负载与浪涌条件下的动作行为。
- 对于关键应用，建议做多次循环（热循环、过流循环）验证复位稳定性与阻值漂移。
七、典型应用与注意事项
适用于移动设备电源输入、USB/数据线短路保护、小型电机驱动前级保护、摄像头、蓝牙模块等低压电子产品。使用时注意不要超过6 V 额定电压，合理选择 Ihold/Itrip 与电路工作点，避免靠近大热源或通风受限区域导致误动作。
若需更详细的动态特性曲线（I-T、R-T）或回流焊温度规范，请向供应商索取完整数据手册。
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