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KUU K0805L020/30AR
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU K0805L020/30AR
- Type
- KUU
- Minimum package
- 3500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- K0805L020/30AR
- Electronic Component
- 1
- Electronic Component
- 1.5mm
- Package
- 0805
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.03g
- Electronic Component
- 2.3mm
- Electronic Component
- 1mm
- Electronic Component
- 1
- Electronic Component
- 20ms
- Electronic Component
- BM0264548736
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 30V
- Power(Pd)
- 600mW
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
K0805L020/30AR 产品概述
一、产品简介
K0805L020/30AR 为KUU品牌0805封装的复位型自恢复保险器（PTC），适用于对小电流过流保护要求严格的便携式与板载电子设备。器件在正常工作电流下阻值低、损耗小；在过流时迅速升温增阻，实现断路保护，故障解除后自动恢复。
二、主要规格参数
- 额定耐压（Vmax）：30 V
- 最大允许冲击电流（Imax）：100 A（短时冲击承受能力）
- 保持电流（Ihold）：200 mA（正常不动作的最大电流）
- 跳闸电流（Itrip）：500 mA（典型动作电流）
- 额定功耗（Pd）：600 mW
- 初始态阻值（Rmin）：500 mΩ（0.5 Ω）
- 跳断后最大阻值（R1max）：3.2 Ω
- 动作时间：20 ms（典型）
- 工作温度：-40 ℃ ~ +85 ℃
- 外形尺寸：长度2.3 mm × 宽度1.5 mm × 高度1.0 mm
- 封装：0805（SMD）
三、性能与特性
- 快速响应：典型动作时间约20 ms，能在短时间内限制过流并保护后级电路。
- 可复位：故障解除并冷却后阻值恢复，适合重复保护场景，降低维护成本。
- 低初始阻抗：0.5 Ω 初始阻值在小电流应用中减少压降与功耗。
- 强瞬态耐受：可承受高达100 A的短时冲击电流（用于吸收器件或突发性浪涌），需在实际电路中注意能量限制。
四、典型应用场景
- USB、音视频接口与外设供电保护
- 移动电源、便携设备和电池管理的短路/过流保护
- 家用电子、嵌入式模块及物联网终端的板级保护
- LED 驱动与小功率电源保护
五、封装与安装
0805 标准贴片封装，建议按常规 0805 焊盘设计进行回流焊装配。器件的热阻与周边铜箔面积有关，较大铜箔有助于散热与稳定保持电流值。工作温度范围适合大多数商业及工业级应用。
六、使用建议与选型要点
- 区分 Ihold 与 Itrip，实际选型时应保证工作电流远低于 Ihold，以避免误动作。
- 对有大浪涌或启动电流的负载，需验证器件的冲击能力与热容，必要时并联限流或使用前级熔断器。
- 注意环境温度对保持/动作电流的影响，温度越高器件越容易动作，应参考温度-电流曲线。
- 评估初始压降与功耗（Pd），以确认长期运行下的热稳定性。
七、可靠性与测试
建议在目标应用中完成过流/循环测试、温升测试与回流焊工艺可靠性验证。对于关键应用，依据相关标准（如 IEC/UL 类规范）开展认证与寿命评估。
八、包装与订购
K0805L020/30AR 为标准卷带包装（卷盘贴片），适配自动贴片机。下单时请确认所需数量、交期及是否需特殊品控或认证报告。对于对浪涌或连续高负载敏感的设计，可与厂方技术支持沟通获取更详尽的I–T、I–V曲线数据。
如需器件的完整电气特性曲线（I–T、I–V、温度影响曲线）或参考焊盘布局建议，我可继续提供。
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