WMSIC Electronic Components

LUTE 1812L050/60GR 1812L050

Model1812L050/60GR
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LUTE 1812L050 / 60GR
Type
LUTE
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LUTE
Electronic Component
1812L050/60GR
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.128g
Electronic Component
4.73mm
Electronic Component
1.5mm
Electronic Component
1
Electronic Component
150ms
Electronic Component
BM0263555815
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
60V
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.

1812L050/60GR 产品概述

一、产品简介

1812L050/60GR 是陆特(LUTE)推出的一款微型自恢复过流保护器件,采用标准 1812 封装,体积小(4.73mm × 3.41mm × 1.5mm),适用于汽车电子及工业控制接线端口的过流与过温保护。器件具有快速动作、可自恢复的特点,可在发生过流或过温时限制电流并保护下游电路,故障解除后恢复至初始阻值继续工作。

二、主要性能参数

  • 耐压(Vmax):60 V
  • 最大电流(Imax):40 A(短时冲击能力)
  • 保持电流(Ihold):0.5 A(典型持续允许电流)
  • 跳闸电流(Itrip):1.0 A(起跳/限制电流点)
  • 消耗功率(Pd):1.2 W(稳态功耗)
  • 初始态阻值(Rmin):150 mΩ
  • 跳断后最大阻值(R1max):1.4 Ω
  • 动作时间:150 ms(典型)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装/尺寸:1812,4.73 × 3.41 × 1.5 mm

三、产品特点与优势

  • 小型化封装:1812 体积小,便于在空间受限的汽车和工控端子板上布置。
  • 宽电压适应:60V 耐压满足常见 12V/24V 系统及更高电压边缘需求。
  • 可自恢复:过流触发后器件电阻上升,有效限制电流并在故障排除后自动恢复,减少维护与更换次数。
  • 快速响应:典型动作时间约 150 ms,可在短时间内抑制过流事件对后端器件的冲击。
  • 明确电特性:低初始电阻(150 mΩ)保证正常工作时压降小,跳断后阻值上升至最大 1.4 Ω 达到限流效果。

四、典型应用场景

  • 汽车电子:点烟器、车载充电模块、车载摄像头与信息娱乐系统的接口保护。
  • 工业控制:接线端口、传感器输入、低压驱动电路的过流与过温保护。
  • 消费电子与便携设备:需要自恢复保护且空间受限的场合。

五、设计与使用建议

  • 布局与散热:器件功耗 Pd 1.2 W,在高环境温度下会影响动作特性。建议尽量靠近电源输入端放置,并预留散热空间或避免紧邻大功率发热元件。
  • 电流匹配:Ihold = 0.5 A,Itrip = 1 A,设计时应保证正常工作电流长期低于 Ihold,避免长期漂移或误动作。Imax = 40 A 表示短时冲击能力,不作为长期工作电流。
  • 不建议并联以提高额定电流:并联器件可能导致电流分配不均,影响动作特性,应通过选型获得合适额定值或咨询厂商。
  • 温度影响:工作温度范围 -40 ℃ ~ +85 ℃,在高温条件下器件的 Ihold/Itrip 可能发生变化,应在目标环境下验证实际动作曲线。
  • 焊接与可靠性:遵循制造商的回流焊工艺建议,避免超出温度限值,防止损伤内部聚合物材料。

六、封装与外观

  • 封装型号:1812(工业标准)
  • 外形尺寸:长度 4.73 mm,宽度 3.41 mm,高度 1.5 mm,适配常见 1812 焊盘设计,便于表面贴装组装(SMD)。

七、选型与后续支持

在实际方案中,建议基于实际工作电流、最大允许环境温度和系统浪涌特性做样品测试。若需更详细的 I-t 曲线、阻抗随温度变化曲线或推荐焊接曲线,请联系 LUTE(陆特)技术支持获取完整数据表与应用指导。

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