WMSIC Electronic Components

UNI-ROYAL 0402WGF4532TCE

Model0402WGF4532TCE
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 0402WGF4532TCE
Type
UNI-ROYAL
Minimum package
10000

Technical parameters

Power
62.5mW
Electronic Component
UNI-ROYAL
Electronic Component
0402WGF4532TCE
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
45.3kΩ
Electronic Component
10
Electronic Component
BM0257243672
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
10000

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

0402WGF4532TCE 产品概述

0402WGF4532TCE 是 UNI-ROYAL(厚声)推出的一款 0402 封装厚膜贴片电阻,阻值 45.3 kΩ,精度 ±1%,额定功率 62.5 mW,工作电压 50 V。该器件采用成熟的厚膜工艺,适用于对体积、可靠性和成本有严格要求的消费电子、工业控制和通信设备中作为通用电阻元件使用。

一、主要参数

  • 型号:0402WGF4532TCE
  • 品牌:UNI-ROYAL(厚声)
  • 封装:0402(约 1.0 mm × 0.5 mm)
  • 电阻值:45.3 kΩ
  • 精度:±1%(F 级)
  • 功率:62.5 mW(环境温度与电路条件有关,应参考降额曲线)
  • 最大工作电压:50 V(器件规格限制)
  • 温度系数(TCR):±100 ppm/°C
  • 工作温度范围:-55 °C ~ +155 °C
  • 工艺类型:厚膜电阻(厚膜印刷烧结)

二、性能特点

  • 小尺寸、高集成度:0402 封装适合高密度贴片、节省 PCB 面积。
  • 稳定性良好:厚膜工艺在宽温区间内保持稳定电阻值,适合长期工作环境。
  • 容差与温度特性平衡:±1% 精度结合 ±100 ppm/°C 的 TCR,能满足多数精度要求较高的信号和分压场合。
  • 额定电压与功率匹配合理:在 50 V 工作电压下,典型功耗约 55.2 mW(见示例计算),低于额定 62.5 mW,具一定裕量。
  • 成本与可靠性兼顾:厚膜工艺在成本控制上有优势,同时通过了常规的焊接与温度循环验证,适合大批量应用。

三、典型应用场景

  • 拉高/拉低电阻(pull-up / pull-down)与偏置网络
  • RC 滤波、电平转换与分压电路
  • 便携式设备与消费电子(体积受限处)
  • 工业控制、仪表与传感器前端(在允许的精度范围内)
  • 功耗受限或电压不超 50 V 的通讯设备与接口电路

四、常用计算示例

  • 理论最大允许电压(按功率计算):Vmax = sqrt(P × R) = sqrt(0.0625 W × 45,300 Ω) ≈ 53.2 V。但器件标称最大工作电压为 50 V,设计时请以 50 V 为准。
  • 在 50 V 下的电流与功耗:I = V / R = 50 V / 45,300 Ω ≈ 1.10 mA;P = V^2 / R ≈ 55.2 mW(小于 62.5 mW,留有安全裕量)。
  • 温度漂移示例:TCR ±100 ppm/°C 意味着每升高 1 °C,阻值变化约 45.3 kΩ × 100×10^-6 ≈ 4.53 Ω;在 100 °C 温差下,阻值变化约 1%(≈453 Ω)。

五、安装与焊接建议

  • 焊接方式:建议按厂商推荐的无铅回流焊曲线进行焊接,避免超出制造商给定的峰值温度与时间。
  • 取放与贴装:使用适合 0402 的精密吸笔或真空吸嘴,避免机械应力造成晶片破裂或端电极剥离。
  • 清洗与处理:若需浸泡清洗或化学清洗,应确认所用溶剂不会侵蚀阻膜与端电极。
  • 焊盘设计:合理的 PCB 焊盘与阻焊层能减小热应力并改善焊接可靠性,参考 PCB 制造规范及制造商推荐的焊盘尺寸。

六、选型与注意事项

  • 精度与温漂匹配:若电路对温度稳定性要求高(如精密分压、参考网络),建议评估 ±100 ppm/°C 与 ±1% 精度是否满足系统误差预算,必要时选用金属膜或薄膜电阻以获得更低 TCR。
  • 功率与降额:在高环境温度或聚簇布局下,器件实际可承受的功率会下降,请参考降额曲线并留有裕量。
  • 最大工作电压限制:设计时以器件额定工作电压 50 V 为上限,不应仅依据功率计算的理论 Vmax。
  • 噪声与稳定性:厚膜电阻的噪声特性与金属膜略有差异,关键模拟链路需在设计初期验证。

七、包装与订购信息

0402WGF4532TCE 通常提供卷带封装(适用于自动贴片机),便于 SMT 生产线直接取用。订购时请确认数量、包装单位与是否有湿敏等级(MSL)要求,以便选择合适的库存与贴装流程。有关更详细的封装尺寸、焊接曲线和可靠性测试报告,请咨询厂商 UNI-ROYAL(厚声)或其授权分销商获取完整数据手册。

总结:0402WGF4532TCE 以其小尺寸、良好的一致性及成本优势,适合大多数对空间和成本敏感、但对精度和温漂有一定要求的电子产品应用。设计时关注功率降额与最大工作电压限制,能保证在长期使用中的可靠性。

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