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LUTE 2920L500/33GR 2920L500
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LUTE 2920L500 / 33GR
- Type
- LUTE
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LUTE
- Electronic Component
- 2920L500/33GR
- Electronic Component
- 1
- Electronic Component
- 5.44mm
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.25g
- Electronic Component
- 7.98mm
- Electronic Component
- 1.6mm
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0264548623
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 33V
- Power(Pd)
- 2.5W
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
2920L500/33GR 产品概述
一、产品简介
2920L500/33GR 是 LUTE(陆特) 推出的表面贴装自恢复保险丝（PPTC），封装规格为 2920。相比传统插件式自恢复保险丝，该器件占用空间小、易于贴片工艺装配，适用于高电压、大电流环境下的过流与过温保护，广泛应用于汽车电子、工控端口、电源输入及外设保护等场景。
二、主要技术参数
- 耐压（Vmax）：33 V
- 最大电流（Imax）：40 A
- 保持电流（Ihold）：5 A
- 跳闸电流（Itrip）：10 A
- 消耗功率（Pd）：2.5 W（额定功耗）
- 初始态阻值（Rmin）：5 mΩ
- 跳断后阻值（R1max）：31 mΩ
- 动作时间：5 s（指示条件下典型动作时间）
- 工作温度：-40 ℃ ~ +85 ℃
- 尺寸：长 7.98 mm × 宽 5.44 mm × 高 1.6 mm
- 封装：2920（表贴）
三、关键特性与优势
- 小体积高密度：2920 封装相比传统插件占用 PCB 面积更小，适合空间受限设计。
- 高电压与大电流承受能力：33V 耐压、40A 峰值承受能力，适配汽车及工业供电总线。
- 可重复自恢复：发生过流后自动限流并在故障消除后恢复，提升系统可靠性并减少更换维护。
- 低初始阻值与可控限流：初始阻值仅 5 mΩ，正常工作时压降小；跳断后阻值上升至最大 31 mΩ，实现有效限流。
- 宽温区工况：-40 ℃~+85 ℃，可工作于苛刻环境。
四、推荐应用场景
- 汽车电子总线和模块保护（车载 USB/点烟器/车载充电器）
- 工业控制端口与通信接口保护（RS232/RS485/以太网供电端口）
- 消费电子与电源输入保护（适配器、充电桩前端）
- 电池管理与分支保护（作为次级保护元件）
五、使用与安装注意事项
- 设计留有足够的热散路径，避免长时间靠近热源导致误动作；建议在 PCB 上增加填铜或热过孔以提高散热。
- 在接近 Ihold 或 Itrip 区间长期工作会引起温升和电阻变化，设计时留有裕量并考虑环境温度对动作电流的影响。
- 建议采用标准回流焊工艺，避免超过厂家推荐的温度曲线以防封装或内部材料损伤。
- 在高浪涌条件下，若瞬态电流超过 Imax，应配合熔断型保险或熔丝以提高一次性大冲击承受能力。
- 存储与贮运应避免潮湿和高温，贴片后尽量避免反复热循环。
六、封装与品牌信息
- 品牌：LUTE（陆特）
- 型号：2920L500/33GR
- 封装：2920 表面贴装，外形尺寸 7.98 × 5.44 × 1.6 mm。
2920L500/33GR 以其小尺寸、高电流与高耐压特性，适合需要可靠过流自恢复保护且要求贴片化装配的现代电子系统。选型时应结合系统最大工作电流、环境温度与散热条件进行热电耦合评估，以确保长期稳定运行。
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