WMSIC Electronic Components

Walsin WR08X51R0FTL

ModelWR08X51R0FTL
Package805
Brand(Walsin)
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
(Walsin) WR08X51R0FTL
Type
WALSIN
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR08X51R0FTL
Electronic Component
1
Package
805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.034g
Electronic Component
51Ω
Electronic Component
1
Electronic Component
BM0258853537
Operating Temperature
55℃~+155℃
Operating Voltage
150V
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.

WR08X51R0FTL 厚膜片式电阻产品概述

WR08X51R0FTL是华新科(Walsin) 推出的通用型厚膜片式电阻,采用0805(英制)/2012(公制)标准贴片封装,专为低功率、中等精度电子电路设计,兼具成本可控性与环境适应性,广泛覆盖消费电子、工业控制等多领域应用。

一、产品基本属性

  • 品牌与系列:华新科(Walsin)WR08X通用厚膜电阻系列,属于该品牌中低端市场的主力产品线;
  • 封装规格:英制0805(尺寸:0.08英寸×0.05英寸),对应公制2012(2.0mm×1.2mm),适配90%以上常规贴片生产设备;
  • 型号标识解读:
    • WR08X:华新科厚膜电阻系列代号(“W”代表Walsin,“R”代表电阻,“08X”为封装尺寸编码);
    • 51R0:阻值为51Ω(“R”替代小数点,明确为51.0Ω);
    • FTL:精度等级(±1%)及端电极类型标识(常规三层电极结构)。

二、核心性能参数详解

该电阻的关键参数聚焦阻值精度、功率承载、环境适应性三大维度,具体如下:

1. 阻值与精度

  • 标称阻值:51Ω(±1%精度),属于工业级常用阻值,满足信号调理、分压电路等基础精度需求;
  • 精度范围:在25℃标准温度下,实际阻值波动区间为50.49Ω~51.51Ω,无需额外校准即可直接焊接使用。

2. 功率与电压

  • 额定功率:125mW(0.125W),适配低功率电路(如传感器信号放大、LED限流、小型单片机接口);
  • 工作电压上限:150V,需严格控制实际电路电压不超过此值,避免绝缘击穿或阻值漂移。

3. 温度特性

  • 温度系数(TCR):±100ppm/℃,即温度每变化1℃,阻值变化±0.0051Ω(51Ω×100×10⁻⁶),稳定性优于多数碳膜电阻;
  • 工作温度范围:-55℃~+155℃,覆盖工业级高低温场景(如户外设备、汽车辅助系统、低温存储设备)。

三、封装与工艺优势

WR08X51R0FTL采用厚膜印刷工艺与标准化0805封装,具备以下核心优势:

  1. 工艺稳定性:通过丝网印刷将电阻浆料沉积在氧化铝陶瓷基底上,经高温烧结形成致密电阻层,抗老化性能比薄膜电阻的低成本方案更优;
  2. 焊接兼容性:端电极采用银/镍/锡三层结构,适配回流焊(推荐温度220℃250℃,峰值260℃)、波峰焊(240℃260℃),焊接后焊点可靠性达IPC-A-610标准;
  3. 小体积高密度:封装体积仅约2.0×1.2×0.5mm,适合高密度PCB设计(如智能手机主板、小型工业控制器、穿戴设备)。

四、典型应用场景

该电阻的性能参数匹配多类电子设备的低功率电路需求,核心应用包括:

  1. 消费电子:智能手机音频信号调理、平板电脑按键电路分压、蓝牙耳机充电保护电路;
  2. 工业控制:PLC传感器接口电阻、小型电机驱动电路限流、工业传感器信号放大;
  3. 汽车电子:车载中控面板按键电阻、倒车雷达信号滤波、车载USB接口限流;
  4. 通信设备:小型基站射频匹配网络、路由器电源滤波、IoT设备信号调理。

五、应用注意事项

为保证电路长期可靠性,使用时需注意以下要点:

  1. 功率降额:额定功率125mW为25℃环境值,当温度超过85℃时需按华新科曲线降额(如155℃时功率降额至70mW);
  2. 电压限制:实际工作电压不得超过150V,避免电阻过热导致阻值漂移或绝缘失效;
  3. 焊接规范:控制焊接时间(回流焊≤30s,波峰焊≤5s),避免热应力导致电阻层开裂;
  4. 精度匹配:若需更高精度(如±0.1%),需选择华新科WR系列高精度子型号(如WR08X51R0FTL-H)。

WR08X51R0FTL凭借平衡的性能与成本优势,成为电子设计中通用低功率电阻的优选方案,适用于对精度、温宽有基本要求的各类电路。

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