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BHFUSE BSMD1812-030-60V BSMD1812
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD1812-030-60V
- Type
- BHFUSE
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD1812-030-60V
- Electronic Component
- 1
- Electronic Component
- 3.41mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.107g
- Electronic Component
- 4.73mm
- Electronic Component
- 1.1mm
- Electronic Component
- 1
- Electronic Component
- 100ms
- Electronic Component
- BM0226603333
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 60V
- Power(Pd)
- 800mW
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BSMD1812-030-60V 产品概述
一、产品简介
BSMD1812-030-60V 是佰宏（BHFUSE）推出的一款 1812 封装自恢复聚合物熔断器（PPTC / Polyfuse），用于电路过流保护和短路防护。器件尺寸紧凑（1812），响应速度适中，设计用于保护 60V 以下的直流电路，对瞬态过流具有重复恢复能力，适合消费电子、电源模块与车载外围低压回路的保护需求。
二、主要参数
- 封装：1812（长度 4.73mm × 宽度 3.41mm × 高度 1.1mm）
- 额定电压：Vmax 60V
- 最大持续电流：Imax 40A（短时能力）
- 跳闸电流：Itrip 600mA（典型）
- 保持电流：Ihold 300mA（典型）
- 初始态阻值：Rmin 250 mΩ
- 跳断后阻值：R1max 3 Ω
- 功耗（Pd）：800 mW
- 工作温度范围：-40℃ ~ +85℃
- 动作时间：100 ms
三、特性与优势
- 可重复自恢复：短路或过流事件后设备会升温增阻，限制电流，故障消除后逐渐恢复到低阻态，降低一次性熔断器更换成本。
- 低初始阻值：典型初始电阻 0.25 Ω，避免正常工作时产热和电压压降。
- 快速响应：100ms 级动作时间，能有效抑制异常电流对下游元件的冲击。
- 宽温工作：-40℃ 到 +85℃，适应多数工业与车载环境。
- 紧凑封装：1812 尺寸便于 PCB 布局与自动贴装。
四、典型应用场景
- 手机充电器、移动电源保护电路
- 通信设备和路由器的输入侧防护
- 工业控制模块及传感器电源保护
- 车载低压外围电路（满足 60V 以下系统）
- USB、接口板、LED 驱动等短路/过流保护
五、选型与使用建议
- 按工作电流与启动浪涌选择：Ihold 应大于正常工作电流，Itrip 要小于可允许的最大短路电流以保证保护动作。
- 考虑额外裕量：若电路存在频繁启动浪涌（如电机、电容充电），建议在试验环境下验证是否会误动作，必要时选择更高 Ihold 的型号。
- 功耗与散热：在接近最大持续电流工作时注意器件发热，保证 PCB 散热面积和周边元件间距。
- 环境与耐久性：长期在高温环境使用会降低动作电流，需在规格允许范围内设计。
六、包装与可靠性
BSMD1812-030-60V 支持标准贴片包装，适配 SMT 生产线。佰宏产品通过常规温度循环、过流触发与寿命试验，可靠性符合工业级要求。建议在采购与使用前参考厂方完整数据手册，进行实际电路验证以确保长期稳定运行。
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