WMSIC Electronic Components

TA-I CN34JTN474

ModelCN34JTN474
Package0603x4
BrandElectronic Component
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
CN34JTN474
Type
TA-I Technology
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
CN34JTN474
Electronic Component
1
Package
0603x4
Electronic Component
Resistor Array
Electronic Component
±5%
Electronic Component
0.03g
Electronic Component
470kΩ
Electronic Component
8
Electronic Component
1
Electronic Component
BM0265427444
Electronic Component
±200ppm/℃
Resistor
4
Power
62.5mW
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.

CN34JTN474 排阻产品概述

一、产品基本定义与核心参数

CN34JTN474是大毅科技推出的一款0603×4封装集成排阻,内部集成4个独立电阻,专为高密度、小型化电子设计场景优化。其核心参数清晰明确:

  • 电阻数量:4个独立薄膜/厚膜电阻
  • 单电阻阻值:470kΩ(阻值代码“474”,即47×10⁴Ω)
  • 精度等级:±5%(E24系列通用精度,无额外高精度成本)
  • 单电阻功率:62.5mW(连续工作额定功率)
  • 温度系数:±200ppm/℃(阻值随温度变化的稳定度)
  • 引脚数量:8脚(贴片封装,对称布局)
  • 封装规格:0603×4(每个电阻为1.6mm×0.8mm,总封装适配小型PCB)

二、关键性能指标解析

1. 阻值与精度

470kΩ属于中高阻值范畴,广泛用于信号分压、上拉/下拉、滤波等电路。±5%的精度覆盖了绝大多数消费电子、工业控制的通用需求,同时避免了手工焊接多个电阻带来的一致性偏差,提升电路可靠性。

2. 功率容量

单电阻62.5mW的功率容量,结合470kΩ阻值可计算出最大连续工作电流约为367μA(公式:(I=\sqrt{P/R}=\sqrt{62.5e-3/470e3}))。实际使用需注意降额设计:环境温度每升高10℃,功率需降额5%左右,避免过热损坏。

3. 温度稳定性

±200ppm/℃的温度系数意味着,温度每变化1℃,阻值变化0.02%。以常见的-55℃至125℃工作范围计算,最大阻值变化约3.6%,叠加±5%精度误差,总波动在8.6%以内,满足非高精度场景的稳定需求。

4. 封装功率密度

0603×4封装将4个0603电阻集成,相比分散焊接4个0603电阻,可节省约70%的PCB面积,同时减少焊接点数量,提升生产效率与电路可靠性。

三、封装与引脚配置

CN34JTN474采用贴片式0603×4封装,符合国际电子封装标准,总尺寸适配小型化PCB设计。引脚配置为8脚,通常采用“一端4脚、另一端4脚”的对称布局,便于电路等距布线,兼容常规SMT(表面贴装)设备,支持回流焊、波峰焊工艺。

需注意焊接参数:回流焊峰值温度≤245℃(时间≤30秒),手工焊接烙铁温度≤350℃(时间≤3秒),避免过热导致电阻性能下降。

四、品牌与制造背景

该产品由大毅科技(Taiyo Technology) 生产,大毅科技是全球知名被动元件制造商,专注电阻、电容、电感研发,产品覆盖消费电子、工业控制、汽车电子等领域。CN34JTN474符合RoHS 6项环保标准(无铅、无镉、无汞等),通过高温老化、湿度循环、振动测试等可靠性验证,品质一致性可靠,适用于量产型设备。

五、典型应用场景

  1. 消费电子:智能手机按键上拉电阻、平板LED背光限流、音频接口分压电路;
  2. 工业控制:小型PLC输入/输出接口、传感器信号调理(如温度传感器分压);
  3. 通信设备:路由器以太网滤波、小型基站信号衰减;
  4. 医疗设备:便携式监护仪心率/血氧信号调理(低功率匹配);
  5. 汽车电子:车载中控辅助按键电路(若为车规版本需额外认证)。

六、选型与使用注意事项

  1. 功率匹配:实际工作功率需低于62.5mW,若电流超367μA,需并联电阻或更换高功率排阻;
  2. 温度范围:确认工作环境温度在-55℃至125℃内,高温场景需降额;
  3. 焊接合规:遵循大毅科技焊接曲线,避免手工焊接过热;
  4. 环保需求:符合RoHS标准,适合出口至欧盟、美国等市场;
  5. 一致性验证:对差分信号等一致性要求高的电路,可抽样测试4个电阻偏差。

综上,CN34JTN474排阻以高集成度、稳定性能、环保合规为核心优势,是小型化电子设备的高性价比选择。

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