WMSIC Electronic Components

FH 0402X474K160NT

Model0402X474K160NT
Package0402
BrandFH
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

18 specifications

Core information

Product name
FH 0402X474K160NT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
0402X474K160NT
Electronic Component
1
Electronic Component
470nF
Package
0402
Electronic Component
SMD Capacitor(MLCC)
Electronic Component
±10%
Electronic Component
0.022g
Electronic Component
1
Electronic Component
BM0257283245
Electronic Component
X5R
Voltage
16V
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.

0402X474K160NT — 风华 (FH) 0402 470nF ±10% 16V X5R 贴片电容 产品概述

一 产品简介

0402X474K160NT 是风华(FH)生产的一款0402封装多层陶瓷贴片电容(MLCC),额定电容为470nF(0.47μF),初始容差±10%,额定电压16V,采用X5R介质体系。该器件以体积极小、焊接性好、频率响应优良为特点,适合空间受限、需去耦滤波或旁路的消费类与工业级电子产品电路板上使用。

二 主要参数与特性

  • 容值:470nF(0.47μF)
  • 初始精度:±10%(K级)
  • 额定直流电压:16V
  • 介质温度特性:X5R(-55°C ~ +85°C,典型温漂控制在±15%范围内)
  • 封装:0402(公制约0.4mm × 0.2mm)
  • 产品型号:0402X474K160NT(品牌:风华 FH)
  • 形式:多层陶瓷贴片电容(MLCC),表面贴装(SMT)

器件具有低等效串联电阻(ESR)与低等效串联电感(ESL),在高频去耦、瞬态响应与滤波场合表现良好。

三 电气性能与使用注意

  • DC bias效应:X5R类介质在施加直流电压时会出现显著的电容衰减。对于小封装高容值器件(如0402 470nF),在接近额定电压时实际有效电容会显著下降。设计时应根据实际工作电压做样机测试,必要时通过并联多个电容或选用更高额定电压/更大封装来补偿。
  • 温度特性:X5R在温度范围内的容值变化可达±15%(标准规范),工作温度范围常见为-55°C至+85°C,请按实际环境评估。
  • 频率特性:MLCC在高频下保持良好性能,适用于去耦与高频旁路。
  • 老化与稳定性:X5R为铁电类介质,会存在随时间缓慢发生的容值变化(老化),长期稳定性较C0G/NPO逊色,设计高精度滤波器或定容场合应注意。
  • 焊接与热循环:遵循标准回流焊工艺(参考J-STD-020),峰值回流温度一般≤260°C,避免重复高温循环导致可靠性下降。

四 封装与焊接工艺建议

  • PCB封装建议:0402器件对焊盘与贴装精度敏感,请优先采用厂商提供的推荐焊盘尺寸与阻焊开口。
  • 焊接工艺:建议采用无铅回流焊工艺(参考回流曲线),控制峰值温度与保温时间,避免过长高温暴露。
  • 贴装注意:小尺寸器件易受机械应力影响,布线时避免在焊盘下方或附近设计应力集中结构(如靠板边弯折位置)。焊膏量、回流参数与贴装对良率影响显著,量产前应做工艺验证。

五 典型应用场景

  • 电源去耦与旁路:用于稳压芯片、DC-DC转换器输出与输入端的高频去耦。
  • 滤波与时间常数电路:在空间受限的电路板上实现滤波、耦合或旁路功能。
  • 移动设备与便携类电子:手机、蓝牙、可穿戴设备等对体积与性能有严格要求的场合。
  • 工业与消费电子:传感器模块、微控制器供电净化等。

(如需在汽车或高可靠性场合使用,请确认器件是否符合AEC或相关汽车级认证,并进行专项验证。)

六 选型与可靠性建议

  • 电压余量:由于DC bias导致电容下降,建议在系统设计时考虑电压去额定化,对关键电源去耦可留出50%或更多裕度,或直接选择更高额定电压/更大封装以保证实际工作电容。
  • 并联策略:若单颗0402容量在工作偏压下不足,可并联多颗以提高总容值并降低等效ESR/ESL。
  • 环境与寿命验证:在高温、潮湿或振动环境使用时,进行加速老化、热冲击与机械应力测试以评估长期可靠性。
  • 替代方案:对温度稳定性和长期精度要求高的应用,考虑选用C0G/NPO或更大封装的X7R以换取更好的稳定性。

七 包装与存储

  • 包装形式:常见为卷盘(Tape & Reel)以便SMT自动贴装;具体盘量请参考出货规格说明。
  • 存储条件:避免潮湿与强光,常规环境下干燥包装未开封可长期保存;开封后建议在规定时间内回流焊接,必要时按MSL等级进行烘烤防潮处理。
  • 合规性:风华产品通常满足RoHS等环保要求,具体合规证书以出货文件为准。

总结:0402X474K160NT 为一款体积非常小、适合高密度贴装的470nF X5R MLCC,适用范围广泛,但在关键电源与高可靠性场合需重视DC bias与温漂影响,合理选型与工艺控制是保证电路性能的关键。若需更详细的电容随电压/温度的曲线、典型ESR/ESL参数或推荐焊盘尺寸,可提供需求以便查询并提供厂商数据手册。

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