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KOA RK73B1JTTD103J
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- KOA RK73B1JTTD103J
- Type
- KOA
- Unit
- Electronic Component
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 100mW
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- KOA
- Electronic Component
- RK73B1JTTD103J
- Electronic Component
- 1
- Package
- 0603
- Electronic Component
- SMD Resistor
- Electronic Component
- ±5%
- Electronic Component
- 0.023g
- Electronic Component
- 10kΩ
- Electronic Component
- 1
- Electronic Component
- BM0257712892
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 75V
- Electronic Component
- ±200ppm/℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RK73B1JTTD103J 厚膜贴片电阻产品概述
一、产品定位与核心特征
RK73B1JTTD103J是日本KOA公司推出的通用型高可靠性厚膜贴片电阻，属于RK73系列主力产品。该型号以「小封装适配高密度布局、宽温范围覆盖工业级环境、稳定温漂保障信号精度」为核心优势，兼顾成本与可靠性，是消费电子、工业控制、通信设备等领域的常用选型。
核心特征梳理：
- 厚膜工艺制造，抗冲击振动能力优于薄膜电阻，长期阻值稳定性可靠；
- 0603（2012公制）紧凑封装，尺寸仅1.6mm×0.8mm，适配便携设备与高密度PCB；
- 宽工作温度范围（-55℃~+155℃），满足户外、车载等极端环境需求；
- 温度系数低至±200ppm/℃，阻值随温度变化小，信号精度可控。
二、关键电气参数详解
该型号参数与型号标识（RK73B1JTTD103J）一一对应，需重点关注功率与电压的制约关系：
参数项 数值/标识 核心说明 阻值 10kΩ 型号中「103」表示：10×10³Ω=10kΩ 精度 ±5% 「J」为精度代码（J=±5%，F=±1%），满足多数通用电路需求 额定功率 100mW（1/10W） 常温下最大允许耗散功率，实际需结合电流/电压限制 额定电压 75V 需注意：若施加75V电压，功率为75²/10k=562.5mW（远超100mW），实际以功率限制为准（最大电流=√(0.1/10k)=≈3.16mA，对应电压≈31.6V） 温度系数（TCR） ±200ppm/℃ 每升1℃阻值变化百万分之200；例：25℃时10kΩ，125℃时为10.2kΩ（仍在±5%精度内） 工作温度范围 -55℃~+155℃ 符合MIL-STD-202工业级标准，适配极端环境三、机械与环境性能
封装与焊接：
0603封装焊盘符合IPC标准，回流焊兼容性好（无铅工艺峰值温度240260℃，回流时间3060秒）；手工焊接需控制烙铁温度≤350℃，避免损坏膜层。环境适应性：
厚膜电阻膜层附着力强，抗潮湿（40℃/95%RH下1000小时阻值变化≤0.5%）、抗盐雾（5%NaCl溶液下48小时无腐蚀）；振动耐受：10~2000Hz频率、10g加速度，满足设备振动要求。长期可靠性：
激光微调阻值，长期漂移率≤0.5%/1000小时，适合对稳定性要求较高的电路（如传感器信号调理）。
四、典型应用场景
因参数适配性强，该型号广泛用于：
- 消费电子：智能手机音频分压、平板电源管理限流；
- 工业控制：小型PLC I/O接口信号调理、传感器前端电压转换；
- 通信设备：基站射频匹配网络（小功率阻抗匹配）、光纤收发器偏置电路；
- 汽车电子：倒车雷达信号滤波、仪表盘背光限流；
- 物联网：低功耗传感器节点分压采样、蓝牙模块信号调理。
五、选型与使用注意事项
参数替代：
- 更高精度（±1%）：选同系列RK73B1FTTD103F；
- 更大功率（1/8W）：换0805封装的RK73H1JTTD103J。
功率限制：
实际使用需确保P=I²R≤0.1W，避免过载导致阻值漂移或烧毁。存储要求：
未开封产品存于-40℃~+60℃、湿度≤60%环境，开封后12个月内用完，避免受潮。
RK73B1JTTD103J以平衡的性能与成本，成为中低功率电子电路的可靠选择，尤其适合对温度适应性、小封装有要求的场景。
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