WMSIC Electronic Components

LUTE 0603L020/30XR 0603L020

Model0603L020/30XR
Package0603
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 0603L020 / 30XR
Type
LUTE
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LUTE
Electronic Component
0603L020/30XR
Electronic Component
1
Electronic Component
1.05mm
Package
0603
Electronic Component
Resettable Fuse
Electronic Component
0.024g
Electronic Component
1.85mm
Electronic Component
1mm
Electronic Component
1
Electronic Component
600ms
Electronic Component
BM0263555835
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
30V
Power(Pd)
500mW

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

0603L020/30XR PTC自恢复保险丝产品概述

一、产品核心定位与应用场景

0603L020/30XR是陆特(LUTE)品牌推出的0603贴片封装PTC自恢复保险丝,专为低压小电流场景的过流/过温双重保护设计,可替代传统一次性保险丝,具备重复恢复特性,广泛适配高密度PCB布局的小型电子设备。其核心定位是“小型化、高可靠、可重复”的低压电路防护器件,覆盖消费电子、可穿戴、工业传感等领域。

二、关键电性能参数深度解析

该器件参数围绕“低压过流保护”精准优化,关键性能如下:

  • 耐压能力:30V(直流/交流通用),满足30V以下低压电路(如3.7V锂电池、5V USB供电)的电压需求,无需额外降额;
  • 电流特性:
    • 保持电流(Ihold)200mA:常温下持续导通的最大电流,电路正常工作电流需≤200mA(如智能手机电池输出电流通常<150mA);
    • 跳闸电流(Itrip)500mA:常温下触发动作的最小电流,过流超过此值将在80ms内快速跳断,避免电路损坏;
    • 最大耐受电流(Imax)40A:瞬间过流(如静电放电、浪涌)的耐受能力,防止误触发;
  • 阻值与功耗:初始态最低阻值500mΩ(低压降,对电路信号/功率影响可忽略),跳断后最高阻值3Ω(高阻态限制故障电流至10mA以下);正常工作功耗≤500mW,节能且无明显发热;
  • 环境适应性:工作温度范围-40℃~+85℃,覆盖工业级(车载低温)与消费电子(户外高温)的常见环境,性能稳定。

三、封装与尺寸特性

采用0603贴片封装(英制尺寸,对应公制1608),具体尺寸为:
长1.85mm × 宽1.05mm × 高1mm,属于超小型贴片器件,可直接贴装于高密度PCB(如智能手机主板、可穿戴设备模块),节省30%以上安装空间,适配小型化设计趋势。封装符合IPC标准,焊接兼容性强。

四、工作原理与核心优势

工作原理

基于高分子聚合物PTC材料的正温度系数特性:

  • 正常电流下:材料内部导电通道导通,阻值保持低水平(mΩ级);
  • 过流/过温时:焦耳热使材料膨胀,导电通道断开,阻值骤升至Ω级,限制故障电流;
  • 故障排除后:材料冷却收缩,导电通道恢复,阻值回到初始状态,可重复使用。

核心优势

  1. 可重复恢复:无需更换器件,故障排除后自动复位,降低维护成本;
  2. 快速响应:80ms内完成跳断,及时保护敏感电路(如传感器、芯片);
  3. 双重保护:同时实现过流与过温保护(温度超过85℃时触发);
  4. 低功耗设计:初始阻值低,压降小,不影响电路正常工作;
  5. 宽温稳定:-40℃~+85℃范围内性能无衰减,适应恶劣环境。

五、典型应用案例

该器件广泛应用于以下场景:

  1. 移动终端:智能手机、平板的电池保护电路(3.7V锂电池过流防护);
  2. 可穿戴设备:智能手环、手表的充电模块与传感器电路防护;
  3. 消费电子配件:移动电源、无线耳机的电源输入过流保护;
  4. 小型电子模块:蓝牙/WiFi模块、物联网传感器节点的供电保护;
  5. 工业控制:小型PLC模块、传感器终端的过流防护。

六、选型与使用注意事项

  1. 选型匹配:
    • 电路正常工作电流需≤200mA(Ihold);
    • 工作电压需≤30V;
    • 瞬间过流峰值需≤40A(Imax);
  2. 焊接规范:采用回流焊工艺,峰值温度控制在240℃~260℃,焊接时间不超过10s(避免过热损坏PTC材料);
  3. 布局建议:尽量靠近被保护电路的电源输入端,减少走线电阻对保护响应的影响;
  4. 故障处理:跳断后需排查短路、过载等故障原因,排除后器件自动恢复(无需手动复位);
  5. 温度降额:高温环境(>60℃)下,建议将Ihold降额至150mA以下,确保保护可靠性。

该器件凭借小型化、高可靠、可重复的特性,成为低压小电流电路防护的优选方案,适配多领域的电子设计需求。

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