WMSIC Electronic Components

UNI-ROYAL 0402WGF6802TCE

Model0402WGF6802TCE
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 0402WGF6802TCE
Type
UNI-ROYAL
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0402WGF6802TCE
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
68kΩ
Electronic Component
10
Electronic Component
BM0257627410
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.

0402WGF6802TCE 产品概述

0402WGF6802TCE 是 UNI-ROYAL(厚声)系列的贴片厚膜电阻,阻值为 68 kΩ,阻值精度 ±1%,额定功率 62.5 mW,额定工作电压 50 V,温度系数(TCR)±100 ppm/℃,工作温度范围 -55℃ 至 +155℃,封装为 0402(公制约 1.0 mm × 0.5 mm)。该型号定位为高密度表面贴装电路中的通用精密电阻元件,兼顾体积小、精度高和良好的温度特性,适合对尺寸和可靠性有较高要求的电子产品。

一、主要特性与关键参数

  • 阻值:68 kΩ,精度 ±1%(适用于精确分压、偏置与滤波网络)
  • 功率:62.5 mW,典型用于小功率、低电流场合
  • 额定工作电压:50 V(电压限制在设计中优先于功率限制)
  • 温度系数:±100 ppm/℃(温度变化时阻值漂移较小)
  • 工作温度范围:-55℃ 至 +155℃(适应宽温区的应用)
  • 封装:0402(超小型,适合高密度 PCB 布局)
  • 结构:厚膜电阻(制造工艺成熟,抗冲击和耐焊接性能良好)
  • 品牌:UNI-ROYAL(厚声)

二、性能解读与设计注意事项

  • 电压与功率关系:理论上按 P = V^2/R 计算,在 68 kΩ、62.5 mW 额定功率下对应的最大电压约为 65 V;但该器件的额定工作电压被限定为 50 V,因此在实际电路中应以 50 V 为准。以 50 V 计算时,通过电阻的电流约为 0.735 mA,功耗约 36.8 mW,仍在额定功率范围内运行。
  • 温度漂移:±100 ppm/℃ 意味着每升高 1℃,阻值约变化 0.01%;例如从 25℃ 升至 125℃(∆100℃)时,阻值可能变化约 ±1%,在需高精度随温度稳定的场合应评估该漂移对系统误差的影响。
  • 热管理与退让(derating):0402 封装体积小、散热能力有限,建议在连续工作时采用保守的功率退让策略(例如长期工作功率低于额定的 50%~80%,视具体环境温度而定),并在 PCB 设计上采取合适热散布手段以减少局部升温。
  • 机械与焊接:0402 属超小封装,贴装时需注意掀焊、元件偏移与电路板振动。厚膜电阻适配无铅回流工艺,但应遵循元器件和 PCB 制造商的回流温度曲线与焊盘设计建议。

三、应用场景与适用领域

  • 移动终端与便携设备:用于低功耗分压、偏置与滤波电路,体积优势适合空间受限的设备。
  • 工业控制与通信终端:在高密度信号链路中担当精密阻值元件,适用于电平检测、参考分压等。
  • 仪表与测量设备:在非极端温度精度要求下用于信号调理与阻抗匹配。
  • 汽车与高温环境(需确认具体车规认证):工作温度上限 +155℃ 使其在高温场合具有潜在应用价值,但如用于车规级系统,应进一步确认是否满足相关认证(例如 AEC-Q)。

四、使用建议与替代方案

  • 若电路中存在高直流或脉冲电压,优先以 50 V 的电压极限作为设计基准,必要时采用更大封装(如 0603、0805)以获得更高功率和更好热管理能力。
  • 在要求更高温漂或更高精度的场合,考虑选用低 TCR(例如 ±25 ppm/℃)或金属膜/薄膜电阻替代。
  • 需要更高可靠性(车规、军规)的应用,请向供应商确认该型号的具体资格认证和加速老化试验数据。

五、封装与采购信息

  • 标识:0402WGF6802TCE(产品型号)
  • 封装规格:0402 封装,适合自动贴装与回流焊接生产线
  • 常见包装方式:卷带(Tape & Reel)以便 SMT 贴装;具体卷带数量与包装规格请向供应商或经销商确认
  • 备货建议:小封装电阻在量产时易受供应波动影响,建议根据 BOM 与生产节奏提前规划采购,并核实物料替代品清单以保证生产连续性

六、质量与可靠性说明

  • 厚膜工艺具有成熟的制造流程,提供良好的机械强度与抗冲击性能。该型号支持宽温工作范围,适合多类环境下的长期使用。
  • 为确保在关键应用中的长期稳定性,出货前建议参考供应商的电气特性表、寿命与漂移测试数据(如阻值稳定性、耐焊接性、湿热与高温储存试验等),必要时可要求样品进行验证测试。

总结:0402WGF6802TCE 以其 68 kΩ ±1% 的精度、0402 超小封装与广泛的工作温度范围,适合高密度电路中对体积与精度兼顾的应用场景。设计时需重视电压限制(50 V)、温漂影响与热管理,必要时可通过串并联或更大封装实现更高功率或更低温漂的需求。若需批量采购或验证更详细的可靠性数据,请联系供应商获取完整的规格书与测试报告。

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