WMSIC Electronic Components

KOA RK73H2BTTD3302F

ModelRK73H2BTTD3302F
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 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
KOA RK73H2BTTD3302F
Type
KOA
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RK73H2BTTD3302F
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
33kΩ
Electronic Component
1
Electronic Component
BM0265802625
Operating Temperature
55℃~+155℃
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.

RK73H2BTTD3302F 厚膜贴片电阻产品概述

一、产品定位与核心参数

RK73H2BTTD3302F是日本KOA推出的通用型厚膜贴片电阻,针对中低功耗、常规精度要求的电子电路设计,核心参数明确且适配多数应用场景:

  • 阻值:33kΩ(标识代码“3302”,符合E24系列阻值规范);
  • 精度:±1%(满足多数电路的电阻匹配需求,无需额外校准);
  • 额定功率:250mW(1206封装下的标准功率等级,兼顾尺寸与功率);
  • 温度系数(TCR):±100ppm/℃(温度每变化1℃,阻值变化仅3.3Ω,宽温下性能稳定);
  • 工作温度范围:-55℃~+155℃(覆盖工业级及部分高温场景,远超消费级电阻)。

二、封装与尺寸规格

采用1206英制封装(对应公制3216,尺寸为3.2mm×1.6mm×0.5mm),是贴片电阻中应用最广泛的封装之一,具备以下优势:

  • 表面贴装设计:适配自动化贴装生产线,生产效率高,降低人工成本;
  • 尺寸紧凑:可有效节省PCB布局空间,适合手机、智能穿戴等小型化设备;
  • 焊接可靠性:引脚间距合理(典型0.5mm),焊接时不易出现虚焊、连锡问题,长期使用稳定性强。

三、电气性能特性

基于厚膜工艺(丝网印刷电阻浆料于陶瓷基底,经1000℃以上高温烧结)制造,电气性能均衡可靠:

  1. 阻值稳定性:厚膜层与陶瓷基底结合牢固,长期使用阻值漂移≤0.5%(典型值),满足设备5年以上使用寿命要求;
  2. 功率承载能力:250mW额定功率可覆盖多数中低功耗电路(如信号放大、分压、限流),若降额使用(如70%功率),寿命可进一步延长;
  3. 精度一致性:±1%精度经过严格分选,批量产品阻值偏差均控制在范围内,适合需要多电阻匹配的电路(如仪表校准、滤波网络);
  4. 温度特性:±100ppm/℃的TCR属于厚膜电阻典型值,可在-55℃~+155℃范围内保持阻值稳定,避免因温度变化导致电路性能波动(如传感器信号漂移)。

四、环境适应性

  • 宽温工作:-55℃~+155℃的范围,可应用于高温环境(如工业烤箱控制、汽车发动机舱周边电路)或低温环境(如北方户外通信设备);
  • 耐候性:陶瓷基底及环氧树脂封装材料具有良好的耐湿性(85℃/85%RH环境下1000小时阻值变化≤1%)、抗腐蚀性,可在潮湿、多尘等恶劣环境下稳定工作;
  • 机械稳定性:陶瓷基底硬度高,电阻层附着力强,抗振动(10g/50~2000Hz)、抗冲击(100g/6ms)能力优于薄膜电阻,适合车载、工业机器人等振动场景。

五、典型应用场景

该电阻因参数均衡、成本适中,广泛覆盖以下领域:

  1. 消费电子:手机、平板的电源管理电路(分压、限流)、音频信号调理电路;
  2. 工业控制:PLC输入输出电路、传感器信号放大电路、电机驱动辅助电路;
  3. 汽车电子:车载音响、仪表盘、车身控制模块(BCM)的辅助电路(非高温核心区域);
  4. 通信设备:路由器、交换机的偏置电路、信号滤波电路;
  5. 家电产品:空调、洗衣机的控制板电路(温度检测、电压调节)。

六、品牌与质量保障

RK73H2BTTD3302F由KOA株式会社生产,KOA作为全球电阻领域的知名厂商,具备以下优势:

  • 质量管控:从原材料选型到生产工艺,均符合ISO 9001、IATF 16949等国际标准,每批次产品全参数检测;
  • 环保合规:符合RoHS 2.0、REACH法规,无铅无镉,适配绿色电子产品设计;
  • 批量一致性:批量产品的阻值、精度、TCR等指标一致性好,适合大规模自动化生产,降低终端产品故障率。

该产品凭借“参数均衡+宽温适配+高可靠性”的特点,成为电子设计中替代同规格电阻的优选方案。

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