WMSIC Electronic Components

Viking CSR0204FTDV3302

ModelCSR0204FTDV3302
PackageMELF-0204
BrandVIKING
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
Viking CSR0204FTDV3302
Type
VIKING
Minimum package
3000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
CSR0204FTDV3302
Electronic Component
1
Package
MELF-0204
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.039g
Electronic Component
33kΩ
Electronic Component
1
Electronic Component
BM0265636695
Operating Temperature
55℃~+155℃
Operating Voltage
200V
Electronic Component
±50ppm/℃
Resistor Type
Metal Film Resistor

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

Viking光颉CSR0204FTDV3302 金属膜MELF贴片电阻产品概述

一、产品核心定位与封装特性

CSR0204FTDV3302是Viking光颉推出的中功率高精度金属膜贴片电阻,针对工业控制、通信设备等对稳定性要求较高的场景设计。其采用MELF(金属电极无引脚端面)封装,区别于常规矩形贴片(如0805),具有三大核心优势:

  1. 无引脚低寄生:圆柱形结构仅通过两端电极与PCB贴合,寄生电感<1nH、电容<0.5pF,适配高频电路(如射频信号衰减);
  2. 紧凑尺寸:封装规格为φ2.0mm×L4.0mm,比0805贴片体积缩小约30%,适合高密度PCB布局;
  3. 高导热性:陶瓷基体+金属膜层的结构,热量可快速传导至PCB,提升功率承载效率。

二、关键电气性能参数详解

该型号的参数围绕“精度+稳定”设计,核心指标可支撑多数工业级应用:

  • 阻值与精度:33kΩ(33×10³Ω),精度±1%——满足分压电路、基准电压网络的一致性要求(如PLC模拟量输入偏差控制在1%以内);
  • 额定功率:250mW(0.25W)——25℃环境下稳定工作,高温场景需遵循光颉降额曲线(如125℃时降额至150mW);
  • 工作电压:200V(DC/AC峰值)——需注意“电压-功率关联”:实际施加电压需满足( V ≤ \sqrt{P×R} )(250mW下最大电压约91.6V),避免过压损坏;
  • 温度系数(TCR):±50ppm/℃——每℃阻值变化百万分之50,在-55℃~155℃温变范围内,阻值最大变化仅约346Ω(33kΩ×50e-6×210℃),远优于普通碳膜电阻(TCR通常±200ppm/℃以上)。

三、环境适应性与可靠性表现

针对严苛环境设计,可靠性符合工业级标准:

  • 宽温工作:-55℃+155℃——覆盖工业控制(-4085℃)、汽车电子(部分-40~125℃)甚至高温电源模块场景;
  • 长期稳定:真空镀膜工艺使金属膜层均匀性好,1000小时高温负载(155℃、额定功率)下阻值变化≤0.1%;
  • 耐湿抗腐:符合IEC 60068-2-67标准,95%RH高湿度环境下放置1000小时,阻值变化≤0.5%;
  • 焊接可靠:无引脚结构减少虚焊风险,通过回流焊/波峰焊测试,焊点寿命符合IPC标准。

四、典型应用场景

基于性能特点,该型号广泛应用于:

  1. 通信设备:基站射频电路的信号衰减、滤波网络(低寄生适配高频);
  2. 工业控制:PLC模拟量输入/输出的分压电路、基准电压网络(±1%精度满足控制精度);
  3. 电源模块:DC-DC转换器反馈分压网络(TCR稳定,温变下输出电压波动小);
  4. 汽车电子:车载信息娱乐系统信号调理电路(宽温覆盖发动机舱高温);
  5. 高端消费电子:音频前置放大电路(金属膜低噪声,典型10nV/√Hz,提升音质)。

五、品牌与工艺优势

Viking光颉深耕电阻领域20余年,为该型号提供核心支撑:

  • 品牌认证:通过ISO 9001、IATF 16949(汽车级)、RoHS等认证,品质稳定;
  • 镀膜工艺:真空溅射技术制备纳米级金属膜层,TCR精准度达±50ppm/℃;
  • 批量一致:自动化生产使批量阻值离散度≤0.5%,适合大规模贴装。

该型号凭借“高精度、宽温稳定、紧凑封装”的特点,成为工业、通信等领域的高性价比选择。

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