WMSIC Electronic Components

UNI-ROYAL 0402WGF1370TCE

Model0402WGF1370TCE
Package0402
BrandUNI-ROYAL
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
UNI-ROYAL 0402WGF1370TCE
Type
UNI-ROYAL
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0402WGF1370TCE
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
137Ω
Electronic Component
10
Electronic Component
BM0265618481
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

0402WGF1370TCE厚膜贴片电阻产品概述

一、核心参数规格梳理

这款电阻是UNI-ROYAL(厚声)推出的0402封装厚膜贴片电阻,核心参数清晰适配多数中低功率应用场景:

  • 阻值与精度:137Ω(四位代码标识为“1370”,即137×10⁰),精度±1%,满足工业/消费电子对阻值一致性的基本要求;
  • 功率等级:62.5mW(对应0402封装的常规低功率规格),实际工作电流约21mA(由P=I²R计算),负载压力小;
  • 电压裕量:最大工作电压50V,远高于实际应用中的电压波动范围,过压防护充足;
  • 温度特性:温度系数±100ppm/℃(温度每变化1℃,阻值变化≤0.01%),工作温度范围-55℃~+155℃,覆盖工业级及部分汽车级场景;
  • 封装尺寸:0402(英制,公制1.0mm×0.5mm),体积小巧适配高密度PCB设计。

二、设计与工艺特点

  1. 厚膜工艺的平衡优势
    采用丝网印刷+激光微调技术:既通过激光精准调整阻值实现±1%精度,又保留厚膜电阻抗浪涌、耐脉冲的特性(比薄膜电阻更适合存在电压波动的场景)。

  2. 小封装高密度适配
    0402封装是当前便携式设备的主流选择,可有效缩小产品体积(如智能手环、蓝牙耳机的内部电路),同时兼容自动化贴装,提升生产效率。

  3. 功率与电压的安全冗余
    62.5mW功率在0402封装下属于“低负载”规格,即使环境温度升高,功率降额空间充足;50V工作电压则避免了因瞬时过压(如静电、电路切换)导致的损坏。

  4. 封装材料的稳定性
    陶瓷基片耐高温、低膨胀,环氧树脂涂层防潮抗老化,确保长期使用中阻值漂移≤±0.5%(行业常规老化测试标准)。

三、典型应用场景

  1. 便携式消费电子
    手机、蓝牙耳机、智能手环的信号调理、分压电路:小封装适配设备轻薄化需求,低功率符合电池供电的节能要求。

  2. 工业控制模块
    小型PLC、传感器接口电路:-55℃~155℃宽温覆盖工业现场的极端环境(如户外传感器、车间控制柜)。

  3. 汽车电子辅助电路
    车载低功耗传感器(如胎压监测辅助电路)、仪表盘背光电路:宽温特性适配汽车舱内/外的温度变化(需确认具体应用的振动要求)。

  4. 通信与IoT设备
    小型路由器、IoT网关的滤波、匹配电路:高密度PCB设计中,0402封装可大幅提升电路集成度。

  5. 智能家居设备
    智能开关、传感器节点的电压分压、电流检测电路:低功率无发热,长期运行稳定。

四、可靠性与环境适应性

  1. 宽温下的阻值稳定性
    温度系数±100ppm/℃意味着:当温度从-55℃升至+155℃(温差210℃),阻值变化仅约2.1%,仍在±1%精度的实际允许范围内(工艺控制下实际变化更优)。

  2. 抗机械应力能力
    陶瓷基片具备一定抗弯折性,焊接后可承受PCB轻微变形(如设备跌落时的瞬间应力),降低开路风险。

  3. 焊接可靠性
    兼容回流焊、波峰焊工艺,厚声推荐的焊接曲线(峰值260℃,时间≤10秒)可避免虚焊、冷焊,焊接良率达99.9%以上。

  4. 防潮与耐老化
    环氧树脂涂层隔绝潮气,存储1年以上未焊接电阻的阻值变化≤±0.1%;老化测试(155℃/1000小时)后,阻值漂移≤±0.5%。

五、选型与使用注意事项

  1. 封装与焊盘匹配
    0402封装需对应PCB焊盘尺寸(通常0.6mm×0.3mm),避免焊盘过大导致焊接偏移,或过小导致虚焊。

  2. 功率降额要求
    环境温度超过125℃时,需按降额曲线使用:155℃时功率降额至约50%(即31.25mW),确保使用寿命(设计寿命≥10万小时)。

  3. 存储与烘烤
    未焊接电阻需存储在15-35℃、湿度40-60%的环境中;若受潮(湿度>60%),需120℃烘烤4小时后再使用,避免焊接时爆锡。

  4. 过流防护
    虽有50V电压裕量,但需避免超过最大电流(21mA),防止功率过载导致电阻烧毁(可串联保险丝或限流电阻)。

这款0402WGF1370TCE电阻凭借小体积、宽温稳定、低功率的特点,成为便携式设备、工业控制、通信等领域的高性价比选择,同时厚声的工艺可靠性也为长期使用提供了保障。

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