WMSIC Electronic Components

Littelfuse 0438003.WRA 0438003

Model0438003.WRA
Package0603
BrandLittelfuse
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
Littelfuse 0438003.WRA
Type
LITTELFUSE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
0438003.WRA
Electronic Component
1
Package
0603
Electronic Component
Non-Resettable Fuse
Electronic Component
0.049g
Electronic Component
1
Electronic Component
50A
Electronic Component
BM0265213001
Operating Temperature
55℃~+150℃
Voltage
32V
Current
3A
Voltage (AC)
12V
Electronic Component
Electronic Component
Electronic Component
3000

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

Littelfuse 0438003.WRA 贴片保险丝产品概述

Littelfuse(美国力特)0438003.WRA是一款专为汽车电子及高密度工业/消费电子设计的快断型陶瓷贴片保险丝,兼具小体积、高可靠性与宽环境适应性,是敏感电路过流保护的优选器件。

一、核心身份与品牌背书

该产品隶属于Littelfuse汽车级保险丝产品线,型号后缀“.WRA”表明采用编带包装(Tape & Reel),便于自动化贴装生产。作为全球电路保护领域的领导品牌,Littelfuse的产品以严苛的可靠性测试与行业标准合规性著称,0438003.WRA延续了这一优势,尤其针对汽车电子的恶劣工况进行了针对性优化。

二、关键电气性能参数

0438003.WRA的核心电气指标精准匹配汽车及小型电子设备的电源保护需求:

  • 额定电流:3A(连续工作电流上限,过载时触发熔断);
  • 额定电压:AC 12V(交流电路适配)、DC 32V(直流电路适配,覆盖车载12V/24V系统直流端);
  • 分断能力:50A(可安全切断50A以下过流,避免电弧拉弧损坏周边电路);
  • 工作温度范围:-55℃至+150℃(覆盖汽车发动机舱、工业户外设备等极端温度场景);
  • 熔断特性:快断型(过载响应时间<[email protected]倍额定电流,可快速阻断过流,保护MCU、传感器等敏感元件)。

三、封装与物理特性

该保险丝采用0603封装(公制1608),是贴片器件中的小尺寸规格,具体物理尺寸为1.58mm(长)×0.85mm(宽)×0.5mm(高),可直接贴装于高密度PCB板,适配紧凑空间设计(如车载仪表盘、ADAS传感器模块)。

封装材质为陶瓷,相比塑料封装具有明显优势:

  1. 耐高温性:长期工作于150℃环境下无性能衰减;
  2. 抗机械冲击:可承受汽车行驶中的振动与冲击(符合AEC-Q200振动测试要求);
  3. 电气稳定性:低漏电流、高绝缘性,避免环境湿度对性能的影响。

焊盘设计符合SMD标准,兼容常规回流焊工艺,贴装良率可达99%以上。

四、认证与可靠性保障

0438003.WRA通过多项权威认证,确保全球市场应用合规与可靠性:

  • AEC-Q200:汽车电子可靠性标准,通过了高低温循环、振动、湿度、耐久性等10余项严苛测试,满足汽车级产品的长寿命要求(典型工作寿命>10年);
  • CSA/cULus:北美安全认证,符合UL 248-14(保险丝标准)与CSA C22.2 No. 248.14-13,可直接用于北美市场的汽车、工业设备;
  • 环保合规:无卤素、无铅(RoHS compliant),符合全球绿色制造法规要求。

五、典型应用场景

凭借小体积、宽温、汽车级可靠性,0438003.WRA广泛应用于以下领域:

  1. 汽车电子:ADAS传感器(毫米波雷达、摄像头)、车身控制模块(BCM)、车载信息娱乐系统(IVI)、电源管理单元(PMU)、车灯控制电路;
  2. 工业控制:小型PLC、物联网(IoT)传感器节点、工业机器人末端执行器;
  3. 消费电子:便携设备(智能手表、蓝牙耳机)、锂离电池组保护电路、小型家电控制板。

六、产品价值亮点

  1. 汽车级可靠性:AEC-Q200认证+宽温范围,可在发动机舱(高温区)、车身(低温区)等不同汽车区域稳定工作;
  2. 高密度布局:0603小封装节省PCB空间,适配小型化产品设计趋势;
  3. 快断保护效率:快速熔断特性可有效避免过流对敏感元件的不可逆损坏,降低售后成本;
  4. 全球合规性:CSA/cULus认证覆盖北美市场,AEC-Q200适配全球汽车厂商要求,减少二次认证成本;
  5. 自动化生产友好:编带包装适配SMT自动化贴装,提高生产效率。

该产品是汽车电子及高密度电子设备中,小电流过流保护的高性价比选择,兼具可靠性与易用性。

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