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LUTE 1812L200/36GR 1812L200
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LUTE 1812L200 / 36GR
- Type
- LUTE
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LUTE
- Electronic Component
- 1812L200/36GR
- Electronic Component
- 1
- Electronic Component
- 3.41mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.14g
- Electronic Component
- 4.73mm
- Electronic Component
- 1.5mm
- Electronic Component
- 1
- Electronic Component
- 2s
- Electronic Component
- BM0263555838
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 36V
- Power(Pd)
- 1.4W
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1812L200/36GR 产品概述
一、产品简介
1812L200/36GR 是 LUTE（陆特）推出的一款高压大电流复位式自恢复保险（PTC），采用 1812 封装（尺寸 4.73×3.41×1.5 mm），专为汽车电子与工控端口的过流、过温保护设计。器件体积小、导通阻抗低，能在有限空间内提供可靠的重复性保护功能，适合电源输入、接线端子及模块保护场合。
二、关键参数
- 最大工作电压 Vmax：36 V
- 峰值承受电流 Imax：40 A（瞬时）
- 保持电流 Ihold：2 A（正常工作不动作）
- 跳闸电流 Itrip：4 A（典型）
- 稳态功耗 Pd：1.4 W
- 初始态电阻 Rmin：20 mΩ
- 跳断后最大电阻 R1max：100 mΩ
- 动作时间：约 2 s（在规定过流条件下）
- 工作温度：-40 ℃ 至 +85 ℃
- 封装：1812 尺寸
三、主要特性
- 小体积低占板面积，便于高密度 PCB 布局。
- 低初始电阻（20 mΩ），在保持电流下压降小，能减少热损耗与供电抖动。
- 具备较高的瞬态承受能力（40 A），对短时浪涌和接入电流有良好耐受性。
- 可重复自恢复，跳闸后阻值升高（≤100 mΩ），故障排除后自动恢复导通，减少维护需求。
- 宽工作温度范围，满足汽车级及工业级环境应用要求。
四、典型应用场景
- 汽车电子：车载控制单元、车门/座椅/照明模块的端子保护与分路保护。
- 工业控制：I/O 接口、电源分配、继电器驱动回路的过流防护。
- 通信与电源模块：输入端防短路及模块保护，作为二级保护配合熔断器使用。
五、设计与使用建议
- 电流选择：将常态工作电流控制在 Ihold 以下，避免温度漂移导致误动作；若存在较大启动冲击，应核算 Itrip 和动作时间以避免误触发。
- 热设计：PTC 的动作受 PCB 散热影响较大；加宽焊盘或铜箔会降低器件温升，从而影响动作点。若需更灵敏的动作，减少散热；反之增大散热面积以提高稳态能力。
- 并联/串联注意事项：避免并联不同型号 PTC 以保证一致性；对于高能短路需配合快速熔断器作为一级保护。
- 电压与温度限制：切勿超过 36 V 工作电压，长期工作环境应在器件温度规范内（-40 至 +85 ℃）。
- 布局建议：建议靠近保护对象放置，以缩短热路径并确保本体能准确反映被保护回路的温升。
六、可靠性与包装
LUTE 作为专业元件供应商，提供批量一致性控制与规范化检测，适配汽车与工业环境的可靠性要求。常规包装与供货可按客户需求定制，如需更多可靠性数据（热性能曲线、动作-电流曲线、寿命测试），建议向厂方索取详细技术资料与应用报告。
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