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JDTfuse ASMD0603-020 ASMD0603
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JDTfuse ASMD0603-020
- Type
- JDTFUSE
- Minimum package
- 4000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JDTFUSE
- Electronic Component
- ASMD0603-020
- Electronic Component
- 1
- Electronic Component
- 0.8mm
- Package
- 0603
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.021g
- Electronic Component
- 1.6mm
- Electronic Component
- 1
- Electronic Component
- 600ms
- Electronic Component
- BM0265001244
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 9V
- Power(Pd)
- 500mW
- Current(Imax)
- 40A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ASMD0603-020 产品概述
ASMD0603-020 是 JDTfuse(集电通) 推出的 0603 封装自恢复保险丝，针对便携式电子产品与低压保护场合提供稳定、经济的过流保护方案。产品通过 UL 认证，质量可靠，适合量产替换与设计入板使用。
一、主要电气参数
- 耐压 (Vmax)：9 V
- 最大电流 (Imax)：40 A
- 保持电流 (Ihold)：200 mA（不致跳闸的最大持续电流）
- 跳闸电流 (Itr ip)：500 mA（典型动作电流）
- 消耗功率 (Pd)：500 mW（在保持电流条件下的功耗）
- 初始态阻值 (Rmin)：550 mΩ
- 跳断后阻值 (R1max)：3.5 Ω
- 动作时间：600 ms（达到跳闸电流时的典型动作时间）
- 工作温度：-40 ℃ ~ +85 ℃
二、封装与外观
- 封装型号：0603（长度 1.6 mm × 宽度 0.8 mm）
- 适合表面贴装生产（SMT），节省空间，适合高密度 PCB 设计。
- 小型化体积利于移动设备、穿戴、传感器模块等微型系统的保护设计。
三、应用场景
- USB 接口、数据线和充电线过流保护
- 电池管理与保护电路（低压、低功耗场合）
- 摄像头、物联网终端、便携式音频设备等小型电子设备
- 嵌入式模块、传感器电源输入保护与短路保护
- LED 驱动与小功率开关电源输入端防护
四、产品特点与工作原理
- UL 认证，品质与可靠性有保障，便于相关认证与出货。
- 小封装、低初始阻值（Rmin 550 mΩ），保证正常工作时对电源影响小。
- 过流时在规定动作时间内升温使阻值显著增加（跳断后阻值≤3.5 Ω），限制故障电流并保护电路；故障解除后可自恢复，适合反复保护。
- 性价比高，适合大规模量产和替换使用。
五、使用与选型建议
- 设计时按系统最大工作电流与启动浪涌电流选择合适保持/跳闸电流余量，避免频繁误动作。
- 工作电压不超过 9 V，超过该电压请选用额定更高的型号。
- 关注环境散热与布局：靠近热源或散热受限区域会改变动作特性，必要时预留更高裕量。
- 推荐采用标准 SMT 工艺回流焊，回流曲线应符合制造商焊接规范以避免性能退化。
六、储存与可靠性建议
- 存放环境避免高温高湿，建议干燥包装并在保质期内使用。
- 生产入板后避免长时间强烈机械震动或化学腐蚀性清洗剂接触。
如需样品、电性曲线或更多应用资料（如 I-T、I-R 曲线与回流焊推荐曲线），可提供详尽数据手册与工程支持，便于在具体电路中优化保护方案。
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