WMSIC Electronic Components

Walsin WR12X680JTL

ModelWR12X680JTL
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) WR12X680JTL
Type
WALSIN
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR12X680JTL
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.044g
Electronic Component
68Ω
Electronic Component
1
Electronic Component
BM0265401623
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.

WR12X680JTL 片式厚膜电阻产品概述

一、产品核心身份与基础定位

WR12X680JTL是华新科(Walsin) 推出的一款1206封装厚膜片式电阻,属于常规功率型被动元件,核心参数匹配低功耗电路的限流、分压、信号匹配等基础功能需求,广泛适配消费电子、工业控制、通信等领域的标准化设计,是中低端电路设计中常见的“通用型”电阻选择。

二、关键性能参数深度解析

该电阻的核心参数明确且覆盖常规应用场景的核心需求,具体可从6个维度拆解:

  1. 阻值与精度:标称阻值68Ω,精度等级为±5%(对应行业代码“J”档),满足大多数不需要超高精度的电路设计(如一般信号调理、电源反馈、指示灯限流等);
  2. 功率额定值:250mW(即1/4W),为片式电阻的常规功率等级,可支撑多数低功耗电路的持续工作(实际应用建议预留50%功率余量,即≤125mW更可靠,避免长期过功率老化);
  3. 最大工作电压:200V,需注意此为绝对最大允许电压(非额定电压),实际工作需结合阻值与功率双重校验(如68Ω下200V对应电流约2.94A,但受限于250mW功率,实际最大允许电流仅约60mA,需避免电压电流同时超规格);
  4. 温度系数(TCR):±100ppm/℃,属于厚膜电阻的典型温漂范围,意味着温度变化100℃时,阻值变化约0.68Ω,仍在±5%精度范围内,可满足一般温度环境下的稳定性需求;
  5. 工作温度范围:-55℃+155℃,覆盖工业级宽温(商业级通常为-40℃+85℃),可适应户外设备、工业控制柜等极端温度场景;
  6. 工艺特性:厚膜工艺(丝网印刷电阻浆料于陶瓷基板,高温烧结而成),兼具成本优势与稳定性(相比薄膜电阻成本低30%左右,相比碳膜电阻温漂小40%)。

三、封装与物理特性

  1. 封装规格:采用1206英寸封装(公制对应3216,即3.2mm×1.6mm),是片式电阻的主流封装之一,适配标准SMT生产线,支持自动化贴装与回流焊工艺(回流焊温度曲线需匹配华新科推荐参数);
  2. 结构优势:无引线贴片结构,体积小(仅为传统碳膜电阻的1/10)、重量轻,可大幅提升电路布局密度,适合便携式设备(手机、智能穿戴)与高密度PCB设计;
  3. 机械强度:陶瓷基板耐冲击、抗振动,适合工业设备等振动环境(但需注意贴装时避免过度弯折PCB)。

四、典型应用场景

结合参数特性,WR12X680JTL的核心应用场景包括:

  1. 消费电子:手机、平板、笔记本电脑的音频信号分压、电源指示灯限流、触摸电路匹配电阻;
  2. 工业控制:PLC(可编程逻辑控制器)的输入输出接口限流、温度传感器信号调理电阻(宽温适配工业现场高低温);
  3. 电源电路:DC-DC转换器的反馈分压电阻、线性电源的过流保护限流电阻(250mW功率满足低功耗电源需求);
  4. 通信设备:路由器、基站的射频信号匹配电阻(贴片封装适配高密度PCB布局);
  5. 小型家电:智能音箱、加湿器的控制电路限流、LED指示灯驱动电阻。

五、品牌与可靠性保障

华新科(Walsin)作为全球前五大被动元件厂商之一,其厚膜电阻产品具备以下可靠性优势:

  1. 工艺成熟:采用标准化厚膜生产工艺,电阻性能一致性好(批次阻值差异≤0.2%),可避免批量生产中的性能波动;
  2. 环保合规:符合RoHS 2.0、REACH等国际环保标准,不含铅、镉等有害物质,适配全球市场;
  3. 质量认证:部分产品通过AEC-Q200(汽车电子)认证,本型号常规工业级宽温已满足多数场景的可靠性需求;
  4. 供货稳定:年产能超1000亿只,可支撑批量生产需求,交期通常为2~4周。

六、选型与替换注意事项

  1. 精度升级:若需更高精度(如±1%),可替换为同系列华新科WR12X680FTL(F档);
  2. 功率扩容:若实际功耗超过250mW,需更换1210封装(500mW)或1206功率型电阻(如华新科WR12X680JT25);
  3. 电压限制:不可超过200V最大工作电压,若电路电压≥200V,需并联或串联电阻分压;
  4. 温漂适配:若应用场景温度变化超过150℃(如高温炉附近),需考虑薄膜电阻(如华新科WR12X680JTL的薄膜版,TCR≤50ppm/℃);
  5. 替代型号:同参数同封装的替代型号包括国巨RC1206J-680JL、三星CL1206J680G等,但华新科产品的温漂一致性与可靠性更优。

总结

WR12X680JTL是一款高性价比、宽温适配、贴片易安装的厚膜片式电阻,核心参数覆盖常规电路的基础需求,适合消费电子、工业控制等领域的标准化设计。其华新科品牌的可靠性保障与主流1206封装的兼容性,使其成为多数低功耗电路的理想选择,尤其适合对成本敏感但需要宽温稳定性的场景。

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