WMSIC Electronic Components

Sunlord SZ1005K182CTF

ModelSZ1005K182CTF
Package0402
BrandSUNLORD
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
Sunlord SZ1005K182CTF
Type
SUNLORD
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SZ1005K182CTF
Electronic Component
1
Package
0402
Electronic Component
Ferrite Bead
Electronic Component
±25%
Electronic Component
0.019g
Electronic Component
1
Channel Count
1
Electronic Component
BM0265071903
Operating Temperature
55℃~+125℃
Current
100mA
@Frequency
1.8kΩ@100MHz
Resistor(DCR)
1.8Ω
Electronic Component
Electronic Component

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

SZ1005K182CTF 贴片磁珠产品概述

SZ1005K182CTF是顺络电子(Sunlord)推出的一款小型化贴片磁珠,专为高频电磁干扰(EMI)抑制设计,采用0402封装(公制1005规格),适配高密度PCB布局需求,可在宽温环境下稳定工作,广泛应用于消费电子、汽车电子、工业控制等领域。

一、产品核心定位

该磁珠属于高频滤波型被动元件,核心作用是在100MHz频率附近对干扰信号呈现高阻抗,从而有效抑制该频段的电磁干扰,同时保持较低的直流电阻以减少电路损耗。其设计重点在于平衡“干扰抑制能力”与“直流供电效率”,适合对体积和滤波性能有双重要求的电路场景。

二、关键电气参数解析

1. 阻抗特性(滤波核心指标)

在100MHz频率下,阻抗标称值为1.8kΩ(即1800R),误差范围±25%。此阻抗值针对100MHz左右的射频干扰(如WiFi、蓝牙等2.4GHz以下频段的杂散信号)具有较强的衰减能力,是产品选型的核心参考指标。

2. 直流电阻(DCR)

直流电阻仅1.8Ω,属于低DCR设计——在额定电流下,磁珠的直流压降可控制在0.18V以内(U=I×R=100mA×1.8Ω),不会过度影响电路的直流供电效率,避免因损耗导致的发热或电压不足问题。

3. 额定电流

长期工作额定电流为100mA,指产品在-55℃~+125℃全温范围内,可稳定承载的最大直流电流。若实际工作电流超过该值,磁珠可能出现磁饱和,导致阻抗下降、滤波性能失效,甚至因过热损坏。

4. 通道数

单通道设计(1通道),适用于单路信号线路(如射频信号线)或单路电源线路的EMI抑制,无需额外并联或串联,简化电路布局。

三、封装与典型应用场景

1. 封装规格

采用0402贴片封装(公制尺寸1.0mm×0.5mm),体积小巧,适配高密度PCB设计(如智能手机主板、小型IoT模块),兼容回流焊、波峰焊等标准贴片制程,焊接可靠性高。

2. 典型应用领域

  • 消费电子:智能手机、平板电脑的射频电路(WiFi、蓝牙、GPS)滤波,音频电路抗干扰;
  • 汽车电子:车载通讯模块(如车机蓝牙、无线充电)的EMI抑制(宽温设计符合车规级温度要求);
  • 工业控制:小型传感器节点、低功耗IoT设备的电源滤波,避免工业环境中的电磁干扰;
  • 通信设备:无线路由器、小型基站的高频信号滤波,减少杂散信号对通信质量的影响。

四、环境适应性与可靠性

1. 宽温工作范围

工作温度覆盖-55℃+125℃,满足工业级(-40℃+85℃)、汽车级(-40℃~+125℃)的温度需求,可在极端环境(如高温车载环境、低温工业现场)下稳定工作。

2. 品牌可靠性

顺络电子作为国内被动元件龙头企业,产品一致性好,批次稳定性高;磁珠采用优质铁氧体材料,耐老化性能优异,长期使用后性能衰减极小。

五、选型与使用注意事项

  1. 频率匹配:需确认电路中待抑制的干扰频率是否集中在100MHz附近,若干扰频率偏离较大(如低于50MHz或高于200MHz),滤波效果会明显下降;
  2. 电流裕量:实际工作电流建议不超过额定电流的80%(即80mA以内),预留裕量避免过流导致性能失效;
  3. 焊接工艺:遵循0402封装的标准焊接参数(回流焊峰值温度230℃~245℃,时间≤30s),避免虚焊或过热损坏;
  4. 布局建议:磁珠应靠近干扰源(如射频芯片输出端)或敏感电路(如模拟传感器输入端),减少寄生电容对滤波效果的影响。

综上,SZ1005K182CTF凭借小体积、宽温适配、低损耗等优势,成为高频EMI抑制场景的实用选型,可满足多领域电路的滤波需求。

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