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DOWO DW-1812-050-60D
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO DW-1812-050-60D
- Type
- DOWO
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- DW-1812-050-60D
- Electronic Component
- 1
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.098g
- Electronic Component
- 1
- Electronic Component
- 150ms
- Electronic Component
- BM0264342819
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 60V
- Power(Pd)
- 1.5W
- Current(Imax)
- 10A
- Electronic Component
- Electronic Component
- Electronic Component
- 1500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DW-1812-050-60D 产品概述
一、产品简介
DW-1812-050-60D 为 DOWO（东沃）推出的一款 1812 封装自恢复式熔断器（Polymeric PTC），额定耐压 60V，保持电流 0.5A，适用于各种低压直流电路的过流保护与短路保护。器件在过流情况下能迅速升温并进入高阻态以限制故障电流，故障排除后可自动恢复，适合需要反复保护并要求占板面积小的便携、通信和消费电子设备。
二、主要参数
- 型号：DW-1812-050-60D
- 品牌：DOWO（东沃）
- 封装：1812（表面贴装）
- 耐压（Vmax）：60V
- 最大电流（Imax）：10A（瞬时承受）
- 保持电流（Ihold）：0.5A（持续不触发条件）
- 跳闸电流（Itrip）：1.0A（典型触发）
- 消耗功率（Pd）：1.5W（在特定条件下功耗）
- 初始态阻值（Rmin）：150mΩ（典型低阻态）
- 跳断后阻值（R1max）：1.4Ω（触发后最大阻值）
- 动作时间：150ms（典型）
- 工作温度：-40℃ ~ +85℃
三、特性与优势
- 精准的过流门槛：500mA 的保持电流与 1A 的跳闸电流为设计留出合适裕量，能在正常工作与故障保护间取得平衡。
- 低初始阻值：150mΩ 的低电阻有利于减少正常工作时的压降和功耗。
- 快速响应：典型动作时间 150ms，可在故障初期迅速限制电流，保护下游元件。
- 自恢复能力：跳断后阻值回到高阻态阻断故障电流，故障消除后可自动恢复，降低维护成本。
- 紧凑封装：1812 尺寸便于 SMT 贴装，节省 PCB 面积，适配自动化生产。
四、典型应用场景
- USB/外围设备电源保护（限于 60V 以下系统）
- 通信设备、路由器与交换机的电源输入保护
- 便携式电子设备、充电器与适配器的过流防护
- 工业控制模块、传感器及车载电子（遵循温度与电流规范）
五、选型与使用建议
- 额定选择：工作电流应小于 Ihold（0.5A），并尽量留有 20~30% 余量以避免误触发。
- 瞬时电流考虑：Imax 为瞬时承受能力，长期不可接近此值；若存在较大浪涌电流，应评估器件是否能承受。
- 热设计：注意周围器件与 PCB 的散热，较高环境温度会降低器件的保持电流与触发特性，应在高温工况验证。
- 安装：采用标准 SMT 工艺贴装，焊接与回流工艺建议参考厂商工艺说明书以保证可靠性。
- 测试验证：在最终系统中进行过流触发、恢复周期与长期老化测试，确认重复触发后的性能稳定性。
六、包装与质量保证
DW-1812-050-60D 提供适合自动化贴装的卷带包装，来自 DOWO 的生产与检验流程保证了一致性与可靠性。出厂前建议索取完整的数据手册和可靠性测试报告，以便在量产设计中进行验证与记录。
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