WMSIC Electronic Components

Sunlord SZ1005K121TF

ModelSZ1005K121TF
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 SZ1005K121TF
Type
SUNLORD
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SZ1005K121TF
Electronic Component
1
Package
0402
Electronic Component
Ferrite Bead
Electronic Component
±25%
Electronic Component
0.019g
Electronic Component
1
Channel Count
1
Electronic Component
BM0264915686
Operating Temperature
55℃~+125℃
Current
400mA
@Frequency
120Ω@100MHz
Resistor(DCR)
400mΩ
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.

顺络SZ1005K121TF 片式磁珠产品概述

一、产品定位与核心价值

顺络SZ1005K121TF是一款专为高频电磁干扰(EMI)抑制设计的0402小封装片式磁珠,属于顺络经典EMI抑制产品线。该产品针对高密度PCB布局优化,平衡了阻抗特性、直流损耗、电流承载能力与宽温适应性,是消费电子、IoT设备、工业控制等领域的通用型干扰抑制元件,核心价值在于以极小体积实现高效噪声过滤,同时兼顾电路效率与长期可靠性。

二、关键性能参数深度解析

磁珠的核心性能围绕高频阻抗、直流损耗、电流容量三大维度,SZ1005K121TF的参数设计精准匹配多数实际应用场景:

1. 高频阻抗特性

产品核心阻抗为120Ω±25%@100MHz——100MHz是电子设备中常见的干扰频率(如WiFi/蓝牙的谐波噪声、高速数字信号串扰),该阻抗值能有效衰减此频段内的电磁噪声;±25%的公差满足民用、工业级场景的批量一致性要求,无需额外筛选即可稳定应用。

2. 低直流电阻(DCR)

直流电阻仅400mΩ,这是该产品的关键优势:磁珠通常串联在信号或电源线路中,DCR过大会导致压降损耗(如5V电源下,400mA电流的压降仅0.16V),而400mΩ的低损耗设计可大幅降低对电路效率的影响,尤其适合便携设备、低功耗IoT节点等对电源效率敏感的场景。

3. 额定电流与温度范围

  • 额定电流400mA:指磁珠可长期持续承载的最大直流电流,此时磁珠温度上升控制在安全范围内(≤10℃);选型需预留1.2~1.5倍余量(建议实际电流≤320mA),避免过载老化。
  • 工作温宽-55℃~+125℃:覆盖工业级(-40℃~+85℃)与部分车载场景,可适应户外、高温车间等极端环境,无需额外散热设计。

三、封装与可靠性设计

1. 封装规格

SZ1005K121TF采用0402封装(顺络命名中“1005”对应公制尺寸1.0mm×0.5mm,英制0402),体积仅为常规0603封装的1/4左右,可显著提升PCB布局密度,适配智能手机、智能穿戴、IoT模块等紧凑设计。

2. 可靠性保障

  • 工艺优势:采用顺络成熟的高温烧结工艺,磁芯与电极结合牢固,耐焊接冲击(符合IPC/JEDEC J-STD-020标准);
  • 机械性能:可承受1000次以上温度循环(-55℃~+125℃)与振动测试(符合GB/T 2423.10标准);
  • 焊接兼容性:支持无铅回流焊、波峰焊工艺,焊接后无虚焊、脱落等问题。

四、典型应用场景

SZ1005K121TF的参数特性使其适配多领域的EMI抑制需求:

  1. 消费电子:智能手机/平板的WiFi/蓝牙模块滤波(抑制100MHz谐波噪声)、音频设备的噪声过滤(提升音质纯净度);
  2. IoT与智能设备:智能手表/手环的传感器电源滤波(小封装适配腕上空间)、智能家居节点的信号干扰抑制(宽温适应环境变化);
  3. 工业控制:PLC传感器节点的信号滤波(宽温适应车间极端温度)、小型工业电源的EMI滤波(400mA电流满足小功率需求);
  4. 车载入门场景:车载仪表盘传感器的信号滤波(需注意:若需汽车级认证,需核对是否符合AEC-Q200标准)。

五、选型与使用注意事项

  1. 阻抗匹配:若干扰频率偏离100MHz(如1GHz以上),需选择对应阻抗峰的型号(如顺络SZ1005K102TF,1kΩ@1GHz),避免滤波效果下降;
  2. 电流余量:实际工作电流需≤额定电流的80%(≤320mA),大电流场景需选0603等大封装型号;
  3. 焊接工艺:0402封装需控制回流焊温度(峰值≤245℃,时间≤10s),避免过热损坏磁芯;
  4. 环境适配:车载场景需确认AEC-Q200认证(顺络部分0402磁珠有认证,需核对具体型号)。

总结

顺络SZ1005K121TF是一款高性价比的0402封装片式磁珠,以120Ω@100MHz中阻抗、400mΩ低DCR、400mA额定电流与-55℃~+125℃宽温为核心优势,精准匹配高密度电路的EMI抑制需求,覆盖消费电子、IoT、工业等多领域,是工程师优化电路噪声、提升可靠性的实用选择。

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