WMSIC Electronic Components

RALEC RTT022613FTH

ModelRTT022613FTH
Package0402
BrandRALEC
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RALEC RTT022613FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT022613FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
261kΩ
Electronic Component
50
Electronic Component
BM0265114404
Operating Temperature
55℃~+155℃
Operating Voltage
50V
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.

RTT022613FTH — 0402 贴片厚膜电阻产品概述

一、产品简介

RTT022613FTH 为 RALEC(旺诠)出品的一款高阻值、低功耗 0402 封装厚膜贴片电阻。标称阻值 261 kΩ,精度 ±1%,额定功率 62.5 mW,额定工作电压 50 V,温度系数(TCR)±100 ppm/°C,工作温度范围 -55 ℃ ~ +155 ℃。适配现代高密度 SMT 板面,适用于对体积、稳定性和成本有综合要求的电子产品。

二、主要技术参数

  • 阻值:261 kΩ(标称)
  • 精度:±1%(近似 E96 等级)
  • 功率:62.5 mW(0402 封装典型额定功率)
  • 额定工作电压:50 V(器件实际使用不得超过此值)
  • 温度系数:±100 ppm/°C(约 0.01%/°C)
  • 工作温度:-55 ℃ ~ +155 ℃
  • 封装:0402(约 1.0 mm × 0.5 mm)
  • 工艺:厚膜(成本效益高,适合批量生产)

实际使用时可作简单功率/电压校验:在额定工作电压 50 V 时,电流 I = 50 V / 261 kΩ ≈ 192 μA,功耗 P = V^2/R ≈ 9.6 mW,远低于 62.5 mW 的额定功率,留有较大的安全余量。若仅按功率计算的最高跨压为 sqrt(P·R) ≈ 127.8 V,但器件的额定工作电压以 50 V 为限,禁止超压使用。

三、性能与可靠性特点

  • 小尺寸、高密度:0402 封装便于空间受限的便携或消费类电子板上布局。
  • 精度与温漂:±1% 精度满足多数精密分压、滤波与偏置网络需求;±100 ppm/°C 的 TCR 对一般模拟电路足够,但对超高精度(ppm 级)测量源仍建议选用薄膜或金属膜电阻。
  • 成本与稳定性:厚膜工艺成本优势明显,长期稳定性在常规工况下良好;在极端温度或高湿环境下需关注漂移与老化。
  • 噪声特性:厚膜电阻相较薄膜在低频噪声(1/f 噪声)与长期漂移方面略逊一筹,应避免用于对低频噪声极其敏感的前端电路。

四、典型应用场景

  • 电压分压网络、偏置电阻、上拉/下拉电阻
  • 高阻输入的模拟测量与传感器接口(需评估噪声和漂移)
  • 便携设备、物联网终端、消费电子、通信终端等空间受限的 PCB 设计
  • 成本敏感且对温漂要求非极端苛刻的工业电子应用

五、选型与使用建议

  • 若电路对温度漂移要求严格(如精密测量),建议评估 ±50 ppm/°C 或更低 TCR 的薄膜/金属膜产品。
  • 使用时遵循额定工作电压 50 V 和额定功率 62.5 mW;在高温环境或密集布线导致散热受限时,应按制造商提供的功率降额曲线进行降额设计。
  • 在高阻值电路(>100 kΩ)中注意 PCB 漏电流、表面污染及爬电距离,必要时做表面清洁或涂覆保护层以避免偏差和泄漏。

六、焊接与储存注意事项

  • 与常规 SMT 组件兼容,推荐使用符合电子级回流焊工艺的温度曲线,避免过度热冲击与长时间高温。
  • 储存时避免潮湿、高温与强光直射;对贴片盘和卷盘存放按厂商建议进行防潮管理。
  • 贴装时避免机械应力(例如过度刮擦或弯折基板)以防引起开路或阻值异常。清洗时选用对厚膜电阻安全的溶剂并控制清洗工艺参数。

总结:RTT022613FTH 是一款适合高阻值、体积受限应用的 0402 厚膜贴片电阻,具备 ±1% 精度和良好的功率裕度。选型时应综合考虑温漂、噪声与环境工况,按厂商推荐的焊接与储存规范使用,以确保长期可靠性。

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