WMSIC Electronic Components

LUTE 1210L110/33WR 1210L110

Model1210L110/33WR
Package1210
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 1210L110 / 33WR
Type
LUTE
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LUTE
Electronic Component
1210L110/33WR
Electronic Component
1
Electronic Component
2.8mm
Package
1210
Electronic Component
Resettable Fuse
Electronic Component
0.059g
Electronic Component
3.5mm
Electronic Component
1.3mm
Electronic Component
1
Electronic Component
300ms
Electronic Component
BM0264548608
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
33V
Power(Pd)
900mW

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

1210L110/33WR 自恢复过流保护器件产品概述

一、产品基本定位与品牌背景

1210L110/33WR是陆特(LUTE) 推出的一款1210封装自恢复保险丝(PPTC),核心用于中低电压、中小电流电路的过流/短路防护。区别于传统一次性保险丝,该器件动作后可自动恢复导通,无需更换,能有效降低电路维护成本,适配消费电子、汽车电子、工业控制等多场景的可靠性需求。

二、核心电气参数深度解析

产品参数针对中小功率电路防护做了精准匹配,关键参数含义如下:

  • 耐压33V:适用于33V以下直流/交流电路,覆盖多数消费电子(如手机充电)、汽车12V系统及通讯设备电源支路;
  • 保持电流1.1A:电路正常工作电流≤1.1A时,器件保持低阻导通,不影响信号完整性;
  • 跳闸电流2.2A:当电流超过2.2A(如短路、过载),器件会在300ms内动作(从低阻切换至高阻),快速切断故障电流;
  • 初始态阻值50mΩ:常态下电阻极小,几乎不消耗额外功率,避免对电路功耗造成影响;
  • 跳断后阻值270mΩ:动作后保持高阻态,将故障电流限制在安全范围,保护后端敏感器件;
  • 最大电流100A:能承受瞬间浪涌电流(如开机峰值),避免误动作;
  • 消耗功率900mW:正常工作时的功耗,需注意PCB散热设计(如增大铜箔面积);
  • 工作温度-40℃~+85℃:宽温范围适配户外、工业等极端环境,可靠性稳定。

三、封装特性与可靠性表现

1210封装(英制尺寸3.2mm×2.5mm)具备以下优势:

  • 贴装兼容性:贴片式设计适配SMT自动化生产,提高组装效率;
  • 环保合规:符合RoHS无铅要求,适配绿色制造标准;
  • 焊接可靠性:耐回流焊温度(260℃/10s),焊接后无开裂、虚焊风险;
  • 机械稳定性:振动冲击性能符合行业标准(如MIL-STD-202),能承受运输及使用中的机械应力,长期工作无失效。

四、选型与使用注意事项

为确保防护效果,选型及使用需注意以下要点:

  1. 电流匹配:保持电流需大于电路正常工作最大电流的1.2~1.5倍(如电路常态电流1A,则选1.1A保持电流的器件),避免误动作;
  2. 电压匹配:耐压需高于电路工作电压(如12V电路选33V耐压器件),确保故障时能承受电压应力;
  3. 散热设计:因功耗900mW,PCB铜箔面积建议≥10mm²,避免靠近发热元件(如功率管);
  4. 故障处理:动作后需先排除短路/过载故障,待器件降温(约1~2分钟)后自动恢复,无需更换;
  5. 安装规范:贴装时避免机械应力过大,焊接后不要弯折引脚,防止器件内部结构损坏。

五、典型应用场景

该器件因尺寸小、防护精准,广泛用于:

  • 消费电子:手机电池保护板、蓝牙耳机充电电路、智能手环电源模块;
  • 汽车电子:12V车载小功率负载(如LED氛围灯、传感器)过流保护;
  • 工业控制:PLC输入输出模块、小型继电器线圈防护;
  • 通讯设备:路由器、交换机的DC电源支路、以太网端口过流防护。

综上,1210L110/33WR凭借小体积、宽温耐候、可重复恢复等特性,成为中小功率电路过流防护的高性价比选择,适配多行业的可靠性需求。

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