WMSIC Electronic Components

KOA RK73Z2BTTD

ModelRK73Z2BTTD
Package1206
BrandKOA
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+

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Technical data

Product details

19 specifications

Core information

Product name
KOA RK73Z2BTTD
Type
KOA
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RK73Z2BTTD
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
0.03g
Electronic Component
0Ω
Electronic Component
1
Electronic Component
BM0264770983
Operating Temperature
55℃~+155℃
Resistor Type
Resistor
Electronic Component
Electronic Component
Electronic Component
5000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

RK73Z2BTTD 厚膜0Ω贴片电阻产品概述

一、产品核心定位与基础属性

RK73Z2BTTD是KOA公司推出的1206封装厚膜0Ω贴片电阻,核心定位为电路连接/跳线专用元件,替代传统导线、手工跳线,解决自动化贴装效率低、可靠性差的问题。产品针对宽温区(-55℃~+155℃)场景优化,适配工业、汽车电子等对环境适应性要求高的领域,是高可靠性电路设计的常用基础元件。

二、关键参数详解

该型号核心参数围绕“0Ω连接稳定性”与“宽温适应性”设计,关键指标如下:

  1. 阻值与精度:标称阻值0Ω,实际厚膜工艺下微小阻值≤5mΩ(行业常规),无严格阻值精度要求(因核心功能为连接,而非阻抗调节);
  2. 功率与电流承载:1206封装额定功率0.25W,实际持续承载电流建议≤1.5A(需结合散热条件,避免局部过热);
  3. 温度系数(TCR):典型值±100ppm/℃,宽温区下阻值变化极小,不影响电路连接可靠性;
  4. 工作温区:明确-55℃至+155℃,覆盖汽车电子、工业现场等极端环境温度范围。

三、封装与物理特性

  1. 封装规格:1206英寸封装(公制3216),尺寸为长3.2±0.2mm、宽1.6±0.2mm、厚0.5±0.1mm,符合IPC-J-STD-001标准;
  2. 电极设计:两端电极采用镍底层+锡表层(Sn/Ni)镀层,适配回流焊、波峰焊工艺,焊接强度满足机械振动要求;
  3. 包装方式:卷带式包装,每盘10000pcs,兼容常规SMT贴片机,贴装效率≥10000pcs/小时(行业常规)。

四、典型应用场景

  1. 汽车电子领域:车载ECU(电子控制单元)、动力总成模块、车身电子(如车门控制、灯光系统),宽温区满足发动机舱(高温)与冬季低温(-55℃)环境;
  2. 工业控制设备:PLC(可编程逻辑控制器)、变频器、传感器信号调理模块,替代人工跳线提升设备可靠性;
  3. 通信设备:基站射频模块、路由器核心板,用于电路节点连接、EMI滤波(0Ω电阻可抑制高频干扰);
  4. 高端消费电子:智能家电(如变频空调)、高端显示器,提升贴装自动化率,降低人工成本。

五、可靠性与环境适应性

该型号通过多项可靠性测试,确保长期稳定运行:

  1. 温湿度循环测试:-55℃~+155℃循环(1000小时),阻值变化≤1%,无性能衰减;
  2. 耐焊接热测试:符合回流焊峰值温度260℃±5℃、持续时间10-30s的工艺要求,无开裂、电极剥离;
  3. 机械性能测试:振动(10-2000Hz,加速度1g)、冲击(1000g,6ms)测试合格,满足运输与现场使用的机械应力;
  4. 耐腐蚀性测试:5%NaCl盐雾测试(96小时),电极无氧化,焊接强度无下降。

六、选型与使用注意事项

  1. 电流匹配:避免超过1.5A持续电流,如需更高电流(如2A以上),建议选择1206封装合金0Ω电阻;
  2. 贴装工艺:遵循KOA推荐的回流焊温度曲线(升温速率≤3℃/s,降温速率≤2℃/s),避免焊接温度过高;
  3. 存储条件:常温干燥环境(温度25±5℃,湿度≤60%),开封后1个月内使用完毕,避免电极氧化;
  4. 替代验证:若需替换其他品牌0Ω电阻,需确认封装尺寸、温区范围与电流承载能力一致。

该产品凭借宽温适应性、高可靠性与自动化贴装优势,成为汽车电子、工业控制等领域的主流0Ω电阻选型之一。

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