WMSIC Electronic Components

ROQANG VT1H4R7M0405

ModelVT1H4R7M0405
PackageSMD,4x5.4mm
BrandROQANG
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
ROQANG VT1H4R7M0405
Type
ROQANG
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROQANG
Electronic Component
VT1H4R7M0405
Electronic Component
1
Electronic Component
4.7uF
Package
SMD,4x5.4mm
Electronic Component
SMD Aluminum Electrolytic Capacitor
Electronic Component
±20%
Electronic Component
0.215g
Electronic Component
1
Electronic Component
BM0264780408
Electronic Component
2000hrs@105℃
Operating Temperature
40℃~+105℃
Current
14mA@120Hz
Voltage
50V
Capacitor
4mm

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

VT1H4R7M0405 产品概述

VT1H4R7M0405 是 ROQANG(容强)推出的一款贴片铝电解电容,额定容量 4.7µF、额定电压 50V,适用于要求体积小、耐高压和中等寿命的电源滤波与退耦场合。外形为 SMD 结构,电容体直径 4mm、长度 5.4mm(D4×L5.4mm),方便在高密度 PCB 上实现自动贴装和回流焊工艺。

一、主要参数一览

  • 品牌 / 型号:ROQANG(容强) / VT1H4R7M0405
  • 容值:4.7µF
  • 容差:±20%
  • 额定电压:50V
  • 纹波电流:14mA @ 120Hz
  • 外形尺寸:φ4.0mm × L5.4mm(SMD)
  • 工作温度:-40℃ ~ +105℃
  • 寿命:2000 小时 @ 105℃
  • 封装形式:贴片(SMD)

二、产品特性与优势

  • 小型封装、体积紧凑:D4×L5.4mm 的贴片体积适合 PCB 高密度布置,节省空间。
  • 高压等级:50V 额定电压适用于中高压电源总线和隔离电路。
  • 宽温工作范围:-40℃ 至 +105℃,可满足工业级温度要求。
  • 可回流焊贴装:标准 SMD 形式支持自动贴片与回流焊流程,提高生产效率。
  • 成本与性能平衡:适合对寿命和电气特性有一定要求但不要求超长期寿命的应用场景。

三、可靠性与使用建议

  • 寿命说明:标称寿命为 2000 小时(105℃),按常见经验在较低温度(如 85℃)和合适应力下,使用寿命会显著延长。设计时建议对温升、纹波及电压应力进行充分裕量。
  • 纹波与散热:标注纹波电流 14mA@120Hz,属于小型贴片铝电解电容常见级别。实际应用时需考虑实际纹波频率、ESR 和环境温度对温升的影响,必要时加大余量或并联低 ESR 电容。
  • 极性与防错插:铝电解电容为极性器件,PCB 布线与丝印需明确正负极,避免反向电压损坏电容。
  • 回流焊与存放:遵循厂商的回流焊温度曲线和湿敏等级(若有),如长时间存放建议防潮包装并在贴片前进行必要的预烘烤。

四、典型应用场景

  • 开关电源输入/输出滤波与旁路。
  • 放大器与模拟电路的耦合/旁路电容(注意极性与失真影响)。
  • 工业设备、通讯设备、仪器仪表中对体积与电压有一定要求的电源滤波。
  • 一般消费电子电路的电源退耦与低频滤波。

五、选型与替代注意事项

  • 若电路中纹波电流较大或要求低 ESR,应选择标称纹波电流更高或固态电容/钽电容等替代品。
  • 对寿命要求严格的设计(如汽车、长寿命工业设备),建议选择寿命更长(≥2000~5000h@105℃ 或更高)或工作温度裕量更大的产品。
  • 体积与引脚布局需与 PCB 孔位与贴片位置匹配,确认包装形式(卷带包装规格)以便自动贴装。

六、包装与订购信息

VT1H4R0405 常见为卷带(reel)包装,适配 SMT 生产线。订购时请确认数量、供货包装、是否有 RoHS/REACH 等合规证书和具体回流焊曲线参数,便于在生产中直接使用。

总结:VT1H4R7M0405 是一款面向高密度贴片电路的中小容量、50V 级别铝电解电容,适用于对体积、成本和中等可靠性有平衡需求的电源滤波与退耦场景。选用时请结合实际纹波、工作温度与寿命需求进行合理的电路设计与热管理。

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