WMSIC Electronic Components

TAIYO YUDEN UMK105CG080DVHF

ModelUMK105CG080DVHF
Package0402
BrandTAIYO YUDEN
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TAIYO YUDEN UMK105CG080DVHF
Type
TAIYO YUDEN
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
TAIYO YUDEN
Electronic Component
UMK105CG080DVHF
Electronic Component
1
Electronic Component
8pF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
0.011g
Electronic Component
1
Electronic Component
BM0265175533
Electronic Component
C0G
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
10000

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

UMK105CG080DVHF 产品概述

UMK105CG080DVHF 为 0402 封装的多层陶瓷贴片电容(MLCC),名义容值 8 pF,额定电压 50 V,采用 C0G(亦称 NP0)介质。该类元件以温度稳定性好、损耗低、频率特性优异著称,适用于对电容稳定性和低损耗有较高要求的各类精密和射频电路。以下对该型号的主要特性、适用场景和选型及贴装注意事项做出简明说明,便于工程设计与生产应用参考。

一、产品基本参数(概要)

  • 品牌:TAIYO YUDEN(太诱)
  • 封装:0402(1005 公制,典型尺寸 1.0 mm × 0.5 mm)
  • 容值:8 pF
  • 额定电压:50 V DC
  • 介质类别:C0G(Class 1 / NP0)
  • 型号:UMK105CG080DVHF

二、C0G 介质的电气特性与价值

  • 温度稳定性优:C0G/NP0 为一类线性、稳定的陶瓷介质,温度系数接近 0 ppm/°C(通常在 ±30 ppm/°C 或更窄范围),因此在宽温区间内电容值变化极小,适合以电容值为基准的时基和滤波电路。
  • 低电介损耗:损耗角正切(DF)非常低,适合高 Q 值和低噪声要求的电路,尤其是谐振与射频通道。
  • 无明显老化:与 X7R 等高介电常数材料不同,C0G 基本无介电老化现象,长期稳定性好。
  • 高频性能好:小容值与低寄生使自谐频率(SRF)较高,因此适合宽频带或射频应用。

三、关键特性与设计优势

  • 高精度与可重复性:8 pF 在 0402 封装中可以保持较稳定的制造一致性,利于批量生产的参数一致性。
  • 体积小、密度高:0402 封装满足高密度 PCB 布局需求,适合空间受限的便携设备。
  • 低温漂、低噪声:对振荡器、相位噪声敏感的放大器前端、频率合成器等电路尤为合适。
  • 工艺兼容性:常规回流焊工艺可直接贴装,适配主流 SMT 生产线。

四、典型应用场景

  • 高频和射频电路:匹配网络、耦合/旁路、滤波器及谐振回路等。
  • 精密时钟与振荡器:用于振荡器的定频元件或网络中,保障频率稳定性与相位噪声指标。
  • 仪器仪表与测量设备:对温漂和长期稳定性要求高的测量电路。
  • 通信与射频前端:天线匹配、调谐电路和低噪放大器输入匹配。
  • 一般模拟电路:精密滤波、耦合/隔直、参考网络等。

五、选型与电路布局建议

  • 容差选择:实际设计中请根据电路对容值精度的要求选择合适公差(常见有 ±5%、±2% 等),特殊高精度场合可咨询供应商获取更严格公差的可用性。
  • 叠加电压/温度场景:实际应用时应考虑工作环境温度、直流偏置效应(DC bias 对小容值影响较小但在某些材料中仍需确认)及可能的交流电压幅值。
  • 布局建议:
    • 靠近敏感器件(如放大器输入、时钟发生器)放置,减少走线寄生与干扰。
    • 对于旁路/去耦用途,尽量缩短走线并配合适当的地回路减少回路面积。
    • 在射频匹配中注意与其他元件的并联/串联寄生电感、电阻对频率响应的影响。

六、贴装与储存注意事项

  • 贴装工艺:兼容标准回流焊工艺,但需避免超温或长时间高温暴露;遵循 PCB 制造商与贴片机的取放规则以减少应力破坏。
  • 机械应力:0402 封装自身抗弯疲劳有限,焊膏量、回流曲线与板子弯曲都会影响元件可靠性,建议按 IPC 推荐的焊接与应力缓解规范布局。
  • 储存与防潮:虽为陶瓷件,对潮湿的敏感性低于塑封元件,但建议在常温干燥环境中存放,避免长时间受潮与剧烈温湿循环。
  • ESD 与清洗:C0G MLCC 一般对静电敏感性低,但清洗剂残留等可能影响焊接质量,推荐使用兼容工艺的清洗流程并在清洗后充分干燥。

总结:UMK105CG080DVHF(8 pF / 50 V / C0G / 0402)是一款适合高频、精密时基与低噪应用的贴片陶瓷电容,凭借 C0G 介质的温度稳定性和低损耗特性,在射频、振荡器及高精度模拟电路中具有明显优势。实际选型时请结合公差、工作电压、温度范围及PCB布局要求,并参考供应商的详细数据手册以获得完整电气和可靠性参数。

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