WMSIC Electronic Components

Walsin WR12X303JTL

ModelWR12X303JTL
Package1206
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) WR12X303JTL
Type
WALSIN
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR12X303JTL
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.044g
Electronic Component
30kΩ
Electronic Component
1
Electronic Component
BM0265427678
Operating Temperature
55℃~+155℃
Operating Voltage
200V
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.

华新科WR12X303JTL厚膜电阻产品概述

一、产品核心基础参数

华新科WR12X303JTL是一款1206封装厚膜贴片电阻,核心参数清晰匹配通用电路需求:

  • 阻值与精度:标称阻值30kΩ(三位数字编码“303”表示“30×10³Ω”),精度±5%(EIA标准J档),满足多数工业、消费电子的基础精度要求;
  • 功率与电压:额定功率250mW,额定工作电压200V(注意:实际功率需以250mW为限,而非电压推导值,避免过热失效);
  • 温度特性:温度系数±100ppm/℃(即温度每变化1℃,阻值漂移±100ppm),工作温度范围-55℃~+155℃,覆盖工业级与汽车级环境;
  • 工艺与品牌:采用厚膜工艺(丝网印刷陶瓷基板+烧结),由台湾华新科(Walsin)生产,品牌可靠性经过市场验证。

二、封装与物理特性

1206封装(英制尺寸,对应公制3216)是贴片电阻的通用规格,WR12X303JTL的物理特性适配高密度PCB设计:

  • 尺寸参数:长度3.2±0.2mm,宽度1.6±0.2mm,厚度0.5±0.1mm,重量约0.01g;
  • 端电极设计:采用无铅锡银铜(Sn-Ag-Cu)端电极,符合RoHS、REACH环保标准,可兼容自动贴装(SMT)与手工焊接;
  • 基板材质:氧化铝陶瓷基板,耐温性与机械强度优于普通玻璃基板,适合宽温环境使用。

三、性能特点与优势

WR12X303JTL的设计兼顾成本与可靠性,核心优势体现在:

  1. 宽温稳定性:±100ppm/℃的温度系数与-55~155℃的工作范围,可稳定应用于户外、车载等高低温场景;
  2. 功率适配性:250mW额定功率满足多数中低功率电路(如信号分压、偏置电路),无需额外降额过度;
  3. 封装通用性:1206封装与主流PCB焊盘兼容,可直接替换同参数其他品牌电阻,降低BOM成本;
  4. 抗干扰性:厚膜工艺的电阻膜层均匀,寄生参数(如寄生电容、电感)低,适合高频电路的信号匹配。

四、典型应用场景

基于参数与封装特性,WR12X303JTL广泛应用于以下领域:

  1. 消费电子:手机、平板的触控屏分压电路、智能家居设备的传感器偏置电阻;
  2. 工业控制:PLC(可编程逻辑控制器)的输入接口电阻、电机驱动电路的限流电阻;
  3. 汽车电子:车载中控的LED背光限流、胎压监测系统的信号滤波电阻(宽温适配汽车舱内环境);
  4. 通信设备:路由器、交换机的电源反馈电阻、无线模块的信号匹配电阻;
  5. 电源电路:DC-DC转换器的输出分压电阻、线性电源的负载电阻。

五、选型与使用注意事项

实际应用中需注意以下要点,避免性能失效:

  1. 功率降额:建议实际功率不超过额定功率的80%(即200mW),减少温度对阻值的影响;
  2. 电压限制:工作电压不得超过200V,防止电阻膜层击穿;
  3. 温度适配:环境温度需在-55~155℃范围内,超出范围可能导致阻值漂移或开路;
  4. 精度匹配:若需更高精度(如±1%),需选择华新科同系列F档(±1%)产品,而非J档(±5%);
  5. 焊接规范:手工焊接温度不超过350℃,时间不超过3秒,避免损伤端电极或基板。

总结

华新科WR12X303JTL是一款高性价比的厚膜贴片电阻,以1206封装为核心,兼顾宽温稳定性、通用兼容性与成本优势,适用于多数工业、消费电子与汽车电子场景。其参数清晰、应用场景明确,是电路设计中30kΩ±5%、250mW电阻的可靠选型。

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