WMSIC Electronic Components

TAIYO YUDEN EMK212B7225KGHT

ModelEMK212B7225KGHT
Package0805
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
TAIYO YUDEN EMK212B7225KGHT
Type
TAIYO YUDEN
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
TAIYO YUDEN
Electronic Component
EMK212B7225KGHT
Electronic Component
1
Electronic Component
2.2uF
Package
0805
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.04g
Electronic Component
1
Electronic Component
BM0257253413
Electronic Component
X7R
Voltage
16V
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.

EMK212B7225KGHT 产品概述

一、产品简介

EMK212B7225KGHT 为太陽誘電(TAIYO YUDEN)系列贴片陶瓷电容(MLCC),规格为 2.2 µF ±10%,额定电压 16 V,介质型式 X7R,封装 0805(公制 2012,约 2.0 × 1.25 mm)。该器件针对通用去耦、旁路及能量储存等应用而设计,在体积、容值与性能之间取得平衡,适用于中高密度贴片电路板。

二、主要特性

  • 容值:2.2 µF;公差:±10%
  • 额定电压:16 V(工作电压请参考电压降额与直流偏压效应)
  • 介质:X7R(温度范围 -55°C ~ +125°C,按 X7R 规范电容随温度变化通常在 ±15% 范围内)
  • 封装:0805(适合自动贴装与回流焊)
  • 优点:体积小、容值密度高、低 ESR/低 ESL(相对电解电容有优势)、焊接可靠性好、适合高频去耦与电源稳压环节
  • 包装:常见为卷带(Tape & Reel),便于 SMT 贴装线使用

三、典型应用

  • 电源去耦/旁路(MCU、电源管理 IC、模拟前端)
  • DC-DC 转换器输入/输出滤波
  • 高频旁路与噪声抑制
  • 移动设备、通信设备、消费类电子与工业控制类电路

四、设计与使用注意事项

  • 直流偏压效应:X7R 类陶瓷电容在施加直流偏压时会出现电容量下降,2.2 µF/0805 的器件在接近额定电压时容量衰减可能较明显。设计时应预留裕量或采用并联多只以满足实际工作容量需求。
  • 温度特性:X7R 在 -55°C ~ +125°C 温区内性能稳定,但温度引起的容量变化应计入设计容差。器件标称公差为 ±10%,为制造公差,不等同于温度系数。
  • 布局建议:去耦时尽量将电容靠近电源引脚放置,缩短焊盘到器件的走线长度,采用足够的过孔与接地平面以降低回路电感。
  • 回流焊与可焊性:遵循厂家推荐的回流焊曲线(J-STD-020),峰值温度通常 ≤ 260°C;避免重复高温循环可能影响寿命。
  • 机械应力:贴片陶瓷电容对机械应力(PCB 弯曲、冲击)敏感,焊接前后避免对器件施加弯折或挤压,以防裂纹导致电气失效。
  • 并联与替代:如需提高实际有效容量或降低 ESR,可考虑并联多只同型号或不同封装组合;对于更高电压或更稳定容量的需求,可选用更大封装或不同介质类型。

五、可靠性与检验建议

  • 生产导入与关键应用场景建议做样机评估,关注在工作电压、温度循环及湿热条件下的容量保持情况与失效模式。
  • 对于严苛或安全相关应用(如汽车、医疗),建议参照厂商更高等级器件或获取厂方可靠性测试报告与认证资料。

六、封装与采购提示

  • 0805 体积适合自动化贴装;采购时确认是否为卷带包装及每卷数量,便于生产线匹配。
  • 购买时建议索取并核对完整数据手册(datasheet),注意器件的批次、出厂检验与储存条件(防潮封装、干燥剂等)。

总结:EMK212B7225KGHT 在 0805 体积下提供较大容值,适合常见去耦与滤波用途。设计时需重点考虑直流偏压与温度对容量的影响,通过合理布局、降额策略或并联使用,可充分发挥其体积与电气性能优势。若用于关键或高可靠性场景,建议联系供应商获取完整技术资料并进行实机验证。

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