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Taiwan Lu Hai NSMD012
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- NSMD012
- Type
- Taiwan Luhai
- Minimum package
- 3500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- NSMD012
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.032g
- Electronic Component
- 1
- Electronic Component
- 1s
- Electronic Component
- BM0264399028
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 60V
- Power(Pd)
- 400mW
- Current(Imax)
- 100A
- Electronic Component
- Electronic Component
- Electronic Component
- 3500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
NSMD012 自恢复保险丝（1206，0.12A，60V）
一、产品简介
NSMD012 为台湾陆海（LuHai）出品的表面贴装自恢复聚合物正温度系数（PPTC）保险元件，采用1206封装，旨在对电子系统的短路与过流故障提供自动保护。器件在过载解除后可自动降温复位，适合需频繁保护且不便更换熔断器的小型电路。
二、主要参数
- 耐压（Vmax）：60 V
- 最大承受瞬态电流（Imax）：100 A（短时间冲击）
- 保持电流（Ihold）：120 mA（在环境温度下可长期通过）
- 跳闸电流（Itrip）：290 mA（典型触发阈值）
- 功耗（Pd）：400 mW（额定条件下功耗）
- 初始态阻值（Rmin）：1.6 Ω
- 跳断后阻值（R1max）：15 Ω（跳断并限制电流后的最大阻值）
- 动作时间：1 s（在指定过流条件下典型动作时间）
- 工作温度：-40 ℃ ～ +85 ℃
- 封装：1206（标准贴片工艺）
三、工作原理与典型行为
PPTC元件在正常工作电流下呈低阻状态（初始阻值约1.6Ω），功耗在Pd范围内。若电流超过Itrip并维持足够时间（典型1秒），材料自加热导致电阻显著上升到跳断后阻值（≤15Ω），从而限制故障电流并保护下游电路。去除故障后，器件冷却恢复至低阻态，可循环使用。
四、典型应用
适用于通信设备、消费电子、PCB电源保护、USB外围、电池保护与任何需要短路/过流自动保护的小功率电路。1206小封装便于高密度布局与自动贴装生产。
五、布局与安装建议
- 建议将元件靠近受保护源头（如接口或供电输入）布局，以提高保护效率。
- 留意周边元件散热与热耦合，避免长期高温环境使保持电流下降。
- 按照厂商推荐的回流焊曲线进行贴装，避免超限热应力影响寿命。
- 在系统评估时应考虑Imax为短时冲击能力，并对长期持续过流做可靠性验证。
六、可靠性与注意事项
- 请根据实际工况（环境温度、散热条件、重复触发频次）选型并留有余量，避免长期在Ihold附近工作导致不稳定触发。
- 对于关键安全电路，建议配合其他保护手段（如限流电阻、保险丝或断路器）共同使用。
- 出厂前后应避免机械应力与化学污染，存储环境尽量干燥避免潮湿。
如需更详细的温度-电流特性曲线、再恢复时间或回流焊工艺参数，请提供样品测试要求或联系厂家获取完整技术资料与应用数据。
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