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Walsin WR04X4303FTL
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- (Walsin) WR04X4303FTL
- Type
- WALSIN
- Minimum package
- 10000 圆盘
Technical parameters
- Power
- 62.5mW
- Electronic Component
- Electronic Component
- Electronic Component
- (WALSIN)
- Electronic Component
- WR04X4303FTL
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.012g
- Electronic Component
- 430kΩ
- Electronic Component
- 1
- Electronic Component
- BM0264080267
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 50V
- Electronic Component
- ±100ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WR04X4303FTL 厚膜片式电阻器产品概述
一、产品基本定位
WR04X4303FTL是华新科（Walsin）推出的0402封装厚膜片式电阻器，属于无铅环保型表面贴装器件，专为小信号电路的阻值匹配、分压、滤波等场景设计。型号中“4303”对应核心阻值430kΩ（430×10³Ω），精度±1%，兼顾性价比与可靠性，适配消费电子、工业控制等多领域需求。
二、核心电气参数详解
该电阻的关键性能参数可支撑多数常规电路的稳定运行，具体如下：
- 阻值与精度：430kΩ±1%（精度等级F级），满足电路中信号分压、偏置设置的匹配需求，避免因阻值偏差导致的信号失真；
- 额定功率：62.5mW（0.0625W），为0402封装电阻的典型额定功率，实际使用建议按50%降额（≤31.25mW），确保长期可靠性；
- 最大工作电压：50V，是连续工作的最高电压阈值，超过该值可能引发热击穿或性能退化；
- 温度系数（TCR）：±100ppm/℃，表示温度每变化1℃，阻值变化±0.01%；在全温区（-55℃~+155℃）内，阻值最大偏差约±2.1%，适配高低温环境；
- 工作温度范围：-55℃~+155℃，覆盖工业级、部分车载级的环境要求，可适应低温储存、高温工作场景。
三、封装与工艺特性
- 封装规格：0402（英制尺寸：0.04″×0.02″，公制1005：1.0mm×0.5mm），体积小巧，适配高密度PCB设计（如智能手机主板、物联网传感器节点）；
- 厚膜工艺：采用丝网印刷电阻浆料+高温烧结成型，相比薄膜电阻成本更低，相比碳膜电阻稳定性更高，兼顾性价比与可靠性；
- 无铅环保：符合RoHS 2.0、REACH标准，无铅焊端适配回流焊、波峰焊等自动化贴装工艺，避免焊接污染。
四、典型应用场景
该电阻因小体积、宽温、中等精度的特点，广泛应用于以下领域：
- 消费电子：智能手机音频滤波电路（分压调节音量）、平板电脑电池管理系统（BMS）电压采样电阻；
- 工业控制：小型温湿度传感器信号调理电路（分压转换）、PLC数字输入输出接口电阻；
- 物联网终端：低功耗环境监测节点偏置电阻、无线模块匹配电阻；
- 汽车电子：车载仪表盘背光调节、传感器接口辅助电阻（宽温特性适配车载环境）；
- 通信设备：小型路由器电源滤波电路（高频噪声抑制）。
五、可靠性与使用注意事项
- 可靠性：厚膜工艺长期稳定性优异，老化测试后阻值漂移率≤0.5%/1000小时；无铅焊端耐回流焊峰值温度（≤260℃），焊接后无开裂风险；
- 使用建议：避免超额定功率/电压工作，优先降额使用；贴装时匹配0402封装焊盘（0.6mm×0.3mm），避免虚焊；存储环境温度≤40℃、湿度≤60%，防止潮湿腐蚀。
该产品以高性价比、宽温适配性成为中小信号电路的常规选择，可满足多数电子设备的批量生产需求。
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