WMSIC Electronic Components

cjiang FNR6045S332KT

ModelFNR6045S332KT
PackageSMD
Brandcjiang
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
cjiang FNR6045S332KT
Type
SMD
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJIANG
Electronic Component
FNR6045S332KT
Electronic Component
1
Package
SMD
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±10%
Electronic Component
0.834g
Inductor
3.3mH
Electronic Component
1
Electronic Component
BM0264590558
Current
170mA
Resistor(DCR)
15.96Ω
Electronic Component
Electronic Component
Electronic Component
1500

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

FNR6045S332KT 产品概述

一、产品简介

FNR6045S332KT 为长江微电(cjiang/长江微电)推出的一款表面贴装磁胶屏蔽电感,标称电感量为 3.3 mH,公差 ±10%。该器件采用磁树脂屏蔽结构与金属化处理的铁氧体磁芯,闭合磁路设计有效抑制漏磁与电磁干扰(EMI),并将结构振动与蜂鸣声降至极低水平。体积小、额定电流较同等体积传统电感高约 30%,适用于对体积和电磁兼容性有较高要求的便携与消费电子设备。

二、主要电气参数

  • 型号:FNR6045S332KT
  • 电感值:3.3 mH(±10%)
  • 额定电流(Irated):170 mA
  • 饱和电流(Isat):200 mA
  • 直流电阻(DCR):15.96 Ω
  • 封装形式:SMD(FNR6045 系列常见外形为 6.0 × 4.5 mm 级别)
  • 类型:磁树脂屏蔽电感
  • 品牌:cjiang(长江微电)

注:以上参数为典型值或标称值,具体批次请参照厂方数据手册进行最终确认。

三、关键特性与优势

  • 磁树脂屏蔽结构:通过磁胶封装与闭合磁路设计,显著降低振动与电磁噪声(包括常见的“蜂鸣声”),提升声学与电磁兼容性能。
  • 金属化铁氧体磁芯:表面金属化处理增强抗冲击性与耐用性,适合可靠性要求较高的移动与车载应用。
  • 漏磁与 EMI 降低:闭合磁路减少磁通外泄,对附近敏感电路干扰小,提高 PCB 布局弹性。
  • 高电流密度:与同等尺寸传统电感相比,额定电流提高约 30%,在有限 PCB 面积内提供更高的电流能力。
  • 体积与性能平衡:SMD 小尺寸有利于高密度布板与自动化贴装。

四、典型应用场景

  • 智能手机、智能电视、机顶盒、笔记本电脑等消费电子设备的电源滤波与 EMI 抑制。
  • 汽车导航系统、车载娱乐与仪表盘等对抗震与电磁兼容性有较高要求的车载电子。
  • 电信基站、网络设备中低频滤波或电源去耦场合(在电流与损耗允许的前提下)。
    注:因本器件电感值较大且 DCR 较高,更适合用于低频滤波、噪声抑制或小电流电源回路,不推荐用于大电流开关电源主磁件。

五、设计与使用要点

  • 电流与饱和裕量:额定电流 170 mA、饱和电流 200 mA,建议工作电流保持在额定值以下并留有裕度,避免在脉冲或突发电流下进入饱和区。
  • 损耗与发热:DCR 为 15.96 Ω,按 P = I^2·R 估算,在额定电流 170 mA 下约为 0.46 W 的铜耗 — 此能量转换为热量,设计时需考虑器件的热散能力与周边散热,必要时应降低工作电流或改用低 DCR 型号。
  • 布局建议:将电感放置于靠近电源输入或噪声源位置,尽量缩短关键回路环路长度;对地面和敏感信号采取隔离或屏蔽措施;对需要更好散热的位置,可配置散热垫或扩大铜箔面积。
  • 焊接与可靠性:遵循常规 SMD 回流焊工艺规范,避免多次高温循环。金属化磁芯与树脂封装对抗冲击有利,但仍需避免剧烈机械应力。
  • 高频特性:3.3 mH 属较大电感量,工作频率较高时自谐与寄生参数会影响性能,设计时需做实际频率响应验证。

六、选型建议与注意事项

  • 若目标为低频电源滤波或 EMI 抑制且工作电流 ≤ 100–150 mA 且能接受一定功耗,本型号为合适选择。
  • 对于高开关频率、较大纹波电流或需低损耗的电源主磁件,应优先选用低 DCR 或更大体积的型号。
  • 注意饱和电流与脉冲电流需求:若电路存在短时脉冲电流超过 200 mA 的可能,需增加裕度或采用更高 Isat 的器件。
  • 在关键应用(如车载、基站)中,建议参考厂商完整可靠性与环境规范并做相应验证。

七、结论

FNR6045S332KT 为一款针对体积受限、对 EMI 与机械抗扰性有要求的中低电流滤波电感解决方案。其磁树脂屏蔽和金属化磁芯带来优秀的噪声抑制与耐用性,适合智能终端与车载等应用场景。但需注意其较高的 DCR 与有限的电流承载能力,设计时应结合功耗、散热及电流脉冲特性进行综合评估。欲获得更详尽的温度特性、频率响应与封装尺寸信息,请参照长江微电官方数据手册或联系厂方技术支持。

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