WMSIC Electronic Components

UNI-ROYAL 1206W4F300JT5E

Model1206W4F300JT5E
Package1206
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 1206W4F300JT5E
Type
UNI-ROYAL
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
1206W4F300JT5E
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
30Ω
Electronic Component
1
Electronic Component
BM0257341828
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.

1206W4F300JT5E 产品概述

一、产品简介

1206W4F300JT5E 是 UNI-ROYAL(厚声)出品的一款贴片厚膜电阻,采用 1206(英制)封装,标称阻值 30Ω,精度 ±1%,额定功率 0.25W(250mW),最高工作电压 200V。该器件以稳定的电阻特性和较宽的工作温度范围(-55℃ 到 +155℃)适应多种电子设计要求,温度系数为 ±100ppm/℃,适合对温漂有一定要求的应用场景。

典型封装尺寸(参考 1206 标准):约 3.2mm × 1.6mm,适用于自动化贴装与常见 SMT 生产流程。常用供货形式为卷带(Tape & Reel),便于表面贴装设备取料。

二、主要电气与环境参数

  • 电阻类型:厚膜电阻(SMD)
  • 标称阻值:30Ω
  • 阻值精度:±1%
  • 额定功率:0.25W(250mW)
  • 最高工作电压:200V
  • 温度系数(TCR):±100ppm/℃(典型)
  • 工作温度范围:-55℃ 至 +155℃
  • 封装:1206(SMD)

这些参数表明该电阻为中低功率、较高精度的通用贴片电阻,适合在温度变化不是极端苛刻但需一定精度的电路中使用。

三、产品特性与优势

  • 稳定性好:厚膜工艺在常温和常电应力下表现稳定,适合大批量生产与长期使用。
  • 精度高:±1% 的配方能满足大多数模拟电路、测量电路以及精密分压场合的需求。
  • 宽温度范围:-55℃ 至 +155℃ 的工作温度覆盖汽车电子(部分非严苛等级)、工业控制与通信设备等领域的常见环境。
  • 良好的电压承受能力:200V 的最高工作电压使其可以用于更高电压的应用场景,前提是实际功率和降额要求得到满足。
  • 封装通用:1206 为常用尺寸,便于 SMT 贴装并兼容多种贴装设备。

四、典型应用场景

  • 电压分压器与基准电路:在需要稳定阻值与一定精度的分压网络中使用。
  • 信号处理与滤波电路:配合电容、电感构成 RC/衰减元件。
  • 电流检测/限流:在低功耗或限流场合作为阻性限流元件(需注意功耗限制)。
  • 工业、通信与消费电子设备:适用于非极端功率要求的 PCB 设计。
  • 保护与阻尼:用于滤波网络中的阻尼或阻抗匹配场合。

五、选型与使用建议

  • 功率与降额:标称功率 250mW 为在特定参照温度下的额定值。若工作环境温度升高或散热条件有限,需进行功率降额(derating)。通常工程实践会参考供应商数据表的降额曲线,避免在高温下长期满额定功率工作。
  • 温漂影响:±100ppm/℃ 的 TCR 表示随温度变化阻值会有可预见的漂移,若系统对温度稳定性要求更高,应考虑更低 TCR 的产品或采用温度补偿设计。
  • 封装与布局:1206 尺寸利于焊接与机械强度。布板时建议预留适当的焊盘与过孔,避免热应力集中影响焊点可靠性。
  • 电压与脉冲:尽管额定工作电压为 200V,脉冲或瞬态电压可能导致元件损坏,设计时需考虑过压保护与脉冲能量限制。
  • 焊接与回流:遵循制造商推荐的回流焊温度曲线,避免多次暴露在高温下造成性能退化。贴装前后注意防潮处理与正确的焊接程序以保证首次合格率。

六、存储与可靠性注意事项

  • 存储环境宜干燥、避免直射阳光及污染性气体,长期储存建议保持原包装。
  • 在高湿环境下请按照湿敏等级(如有)执行回流前的烘烤预处理。
  • 正确的焊接工艺与 PCB 设计、合理的热管理可以显著提高产品的长期可靠性与一致性。

七、结语

1206W4F300JT5E(UNI-ROYAL 厚声)是一款面向通用电子设计的高精度厚膜贴片电阻,兼顾尺寸、精度与温度适应性。其 30Ω、±1% 与 250mW 的组合使其在信号处理、分压、限流等场合具有良好的性价比。最终选型与可靠性评估应参照完整数据手册及具体电路工作条件进行校核与验证。若需更详细的电气特性、回流曲线或可靠性试验数据,请向供应商索取完整数据表与检测报告。

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