WMSIC Electronic Components

UNI-ROYAL 25121WJ0104T4E

Model25121WJ0104T4E
Package2512
BrandUNI-ROYAL
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
UNI-ROYAL 25121WJ0104T4E
Type
UNI-ROYAL
Minimum package
4000 圆盘

Technical parameters

Power
1W
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
25121WJ0104T4E
Electronic Component
1
Package
2512
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.06g
Electronic Component
100kΩ
Electronic Component
1
Electronic Component
BM0257341666
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.

25121WJ0104T4E 产品概述

一、产品简介

UNI-ROYAL(厚声)25121WJ0104T4E 是一款厚膜贴片电阻,封装为 2512(寸法 6432 mil),阻值 100 kΩ,公差 ±5%,额定功率 1W。该系列针对一般工业级与高温工况设计,工作温度范围宽 (-55℃ ~ +155℃),温度系数典型为 ±100 ppm/℃,额定工作电压达 200V。适合需要稳健机械强度与良好耐温性能的贴片电路设计。

二、主要参数

  • 阻值:100 kΩ(标称)
  • 精度:±5%(J)
  • 功率:1W(器件额定,实际功耗依散热条件决定)
  • 最大工作电压:200V
  • 温度系数(TCR):±100 ppm/℃
  • 工作温度:-55℃ ~ +155℃
  • 封装:2512(较大体积,便于散热)
  • 品牌:UNI-ROYAL(厚声)
  • 典型封装后缀:T4E(卷带/盘装,适合 SMT 自动贴装,具体以厂家标注为准)

三、关键性能与优势

  • 耐热与耐候:-55℃ 到 +155℃ 的宽温区间,适合工业环境和高温邻近器件的使用场合。
  • 良好散热能力:2512 的较大体积有利于热量扩散,相比小封装更易承受较高功耗瞬态。
  • 高电压能力:200V 的最大工作电压使其在高阻值电路中更安全,举例:在 100 kΩ 上施加 200 V 时,耗散功率约为 0.4 W(P = V^2 / R),低于额定 1W,具有电压裕量。
  • 成本与通用性:厚膜工艺成本效益高,适合大量生产与一般精度需求的电阻网络。

四、典型应用

  • 信号偏置与高值拉/下拉网络:用于模拟输入、ADC 前端、放大器偏置等场景。
  • 测量与分压网络:配合高压分压或检测电路,利用其较高的耐压特性。
  • 工业控制与电源管理:适合在温度和振动要求较高的设备中使用(需确认系统整体热设计)。
  • 仪器仪表与通信设备:用于非精密但需稳定的阻值元件场合。

五、使用建议与注意事项

  • 降额与热设计:额定 1W 为在合适散热条件下测得的值。实际设计中应根据电路板铜箔面积、器件间距和环境温度进行热仿真与降额。高温时建议查阅厂家提供的功率降额曲线并留有裕量。
  • 温漂与精度:±100 ppm/℃ 与 ±5% 精度适用于一般用途;对高精度或低温漂要求的场合建议选用金属膜或更低 TCR 的产品。
  • 焊接与加工:2512 尺寸兼容自动贴装与回流焊工艺。具体焊接温度和曲线请参考 UNI-ROYAL 焊接指南,避免长期过热影响性能与可靠性。
  • PCB 布局:为改善散热,可在焊盘周围增加铜箔面积或增加过孔散热通道;同时避免把高功耗器件紧邻热敏元件。
  • 电压限制:虽额定 200V,但请留意实际电路中的瞬态过压与浪涌,必要时在电路中加浪涌抑制或限流保护。

六、包装与选型提示

  • 料号解析(参考):2512 表示封装,1W 表示额定功率,J 表示 ±5% 公差,0104(或 104)通常表示 100 kΩ 阻值,T4E 代表卷带/盘装等包装形式(具体以厂方数据表为准)。
  • 采购与替代:如需更高精度或更低温漂,可考虑 1% 或 0.1% 精度及更低 TCR 的薄膜/金属膜产品;若需要更高功耗,可选择更大封装或专用功率电阻。
  • 质量认证:在关键应用(如汽车、医疗)中,请向供应商确认相关认证(如 AEC-Q、UL、耐振动/寿命测试报告等)。

总结:UNI-ROYAL 25121WJ0104T4E 提供了在 2512 封装下兼顾散热与耐压的 100 kΩ 常规厚膜贴片电阻,适合工业级通用电路的偏置与分压应用。设计时应特别关注热管理与额定电压的瞬态裕量,结合厂方数据表进行最终选型与可靠性验证。

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