WMSIC Electronic Components

LUTE 1812L150/33GR 1812L150

Model1812L150/33GR
Package1812
BrandLUTE
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LUTE 1812L150 / 33GR
Type
LUTE
Minimum package
1500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LUTE
Electronic Component
1812L150/33GR
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.116g
Electronic Component
4.73mm
Electronic Component
1.5mm
Electronic Component
1
Electronic Component
500ms
Electronic Component
BM0264548605
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
33V
Power(Pd)
1.2W

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

1812L150/33GR 产品概述

一、主要参数

  • 型号:1812L150/33GR(品牌:LUTE/陆特)
  • 耐压 (Vmax):33V
  • 最大电流 (Imax):40A
  • 保持电流 (Ihold):1.5A
  • 跳闸电流 (Itrip):3A
  • 消耗功率 (Pd):1.2W
  • 初始态阻值 (Rmin):40mΩ
  • 跳断后阻值 (R1max):160mΩ
  • 动作时间:500ms
  • 工作温度范围:-40℃ ~ +85℃
  • 外形尺寸:长 4.73mm × 宽 3.41mm × 高 1.5mm(1812封装)

二、产品特性

1812L150/33GR 属于聚合物自恢复保险型元件,体积小巧但承载能力强。Vmax 33V 适合车载与多种低压系统,Imax 高达 40A 能承受瞬态大电流冲击;同时 Ihold/Itrip(1.5A/3A)设定适合线路过流保护需求。Pd=1.2W 的热耗散配合低阻值(初始 40mΩ)保证正常工作时压降和发热受控;跳断后阻值上升至 160mΩ,可有效限制故障电流并助于保护后级电路。动作时间 500ms 适合慢变过流或过温场景。

三、典型应用场景

  • 汽车电子:车载控制模块、信息娱乐、车灯、电动座椅等线路的过流/过温保护。
  • 工业控制:接线端口、监控设备、继电器驱动及传感器电源保护。
  • 消费类与通讯设备:当空间受限且需过流保护时的局部电源防护。

四、封装与安装建议

1812 封装占板面积小,适合 SMT 工艺。建议按厂方推荐回流焊曲线进行焊接,避开长时间高温暴露以免影响内阻与可靠性。布局时留意散热通道与附近发热元件的间隔,必要时在铜皮上加大散热面积或采用过孔改善热流。

五、选型与使用注意

  • 选型宜以实际工作电流略高于 Ihold 且低于 Itrip 为目标,保证正常工作不触发保护。
  • 在启动浪涌或大电容充电场景,应验证是否存在误触发风险,可采取软启动或限流措施。
  • 长期在高温环境下使用需考虑热漂移与寿命,应适当降额运行。
  • 跳闸后元件为自恢复型,可在排除故障后自动恢复,但若多次重复故障需查明根本原因并更换元件或线路。

六、总结

1812L150/33GR 以其小体积、较高的承受电流与车规级工作温度范围,适用于对空间敏感且需要可靠过流/过温保护的汽车与工业场景。合理的电气参数与封装设计,使其在保护效率、可恢复性与安装便捷性之间取得良好平衡,是常见的线路防护选型之一。

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