WMSIC Electronic Components

Viking AR02BTD1202

ModelAR02BTD1202
Package0402
BrandVIKING
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

13 specifications

Core information

Product name
Viking AR02BTD1202
Type
VIKING
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
VIKING
Electronic Component
AR02BTD1202
Electronic Component
1
Package
0402
Electronic Component
0.009g
Electronic Component
1
Electronic Component
BM0265817409
Electronic Component
Electronic Component
Electronic Component
10000

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

AR02BTD1202 薄膜贴片电阻产品概述

一、产品基本属性

AR02BTD1202是Viking(光颉) 推出的高精度薄膜贴片电阻,采用0402封装(英制尺寸:0.04英寸×0.02英寸,约1.0mm×0.5mm),定位于小功率、高密度集成的精密电路应用。作为薄膜电阻品类的代表,其核心优势在于高稳定性、低噪声与小体积,可满足消费电子、工业控制、医疗设备等多领域的精度需求。

二、核心性能参数详解

该型号的参数围绕“高精度+宽温稳定”设计,关键指标如下:

  • 阻值:12kΩ(标识代码1202,前两位“12”为有效数字,第三位“2”为倍率10²,即12×10²=12kΩ),阻值一致性偏差≤±0.1%;
  • 精度等级:±0.1%,属于工业级高精度范畴,可替代部分金属膜电阻,满足仪表校准、基准电路等对误差敏感的场景;
  • 额定功率:62.5mW(0.0625W),适配低功耗电路(如可穿戴设备、传感器前端),无需额外散热设计;
  • 最大工作电压:25V,需严格控制电路电压不超过此值,避免击穿薄膜层;
  • 温度系数(TCR):±50ppm/℃,即温度每变化1℃,阻值变化±50×10⁻⁶——若环境温度波动100℃,阻值变化仅±0.5%,稳定性显著优于普通厚膜电阻;
  • 工作温度范围:-55℃~+155℃,覆盖工业级、汽车级典型环境,可适应极端工况(如沙漠高温、极地低温)。

三、封装与结构特点

3.1 0402小体积封装

0402封装是当前贴片电阻的主流小尺寸之一,体积仅约1.0mm×0.5mm,比0603封装缩小40%,适合智能手机、智能手表、小型医疗设备等对PCB空间要求严苛的产品,可大幅提升电路集成度。

3.2 薄膜电阻结构

采用氧化铝陶瓷基底+镍铬薄膜工艺(部分型号为钌基薄膜),相比厚膜电阻:

  • 薄膜沉积精度更高(纳米级厚度控制),阻值误差可稳定在±0.1%以内;
  • 温度系数更低(典型±25~±50ppm/℃),宽温下阻值漂移小,避免电路性能波动;
  • 噪声系数低(约-40dB以下),适合信号调理、射频电路等对噪声敏感的场景(如心电图仪的信号放大)。

四、典型应用场景

AR02BTD1202的参数特性使其适配多领域精密电路:

  1. 消费电子:智能手机的加速度计/陀螺仪信号调理电路、电源反馈网络(小体积+高精度);
  2. 工业控制:PLC模拟量输入模块的分压电路、温度传感器校准电路(宽温-55~155℃);
  3. 医疗设备:血糖仪、便携式心电图仪的信号放大电路(低噪声+稳定阻值,保证测量精度);
  4. 汽车电子:胎压监测系统(TPMS)的传感器辅助电路、车载温度传感器(符合汽车级宽温要求);
  5. 通信设备:基站射频前端的衰减网络、小型5G模块的偏置电路(高密度集成)。

五、可靠性与环境适应性

Viking对该型号的可靠性进行了多维度验证:

  • 温度稳定性:经高低温循环测试(-55℃~155℃,循环100次),阻值变化率≤±0.1%,满足长期稳定工作需求;
  • 耐湿性:采用防潮封装工艺,通过85℃/85%RH湿热测试(1000小时),阻值漂移≤±0.2%;
  • 焊接可靠性:适配回流焊、波峰焊工艺,焊接后焊点强度符合IPC-610标准,无虚焊、脱落问题;
  • 静电防护:ESD等级达2kV(人体模型),可有效避免生产/使用中的静电损伤。

六、选型注意事项

  1. 功率降额:实际工作功率建议不超过额定功率的80%(即50mW),避免过热导致阻值漂移或寿命缩短(薄膜电阻过热会加速薄膜老化);
  2. 电压限制:电路工作电压需≤25V,若需更高电压(如50V),需并联2个同型号电阻分压;
  3. 焊接工艺:0402封装焊接温度需控制在260℃以下,回流焊时间不超过30秒,避免高温损坏薄膜层;
  4. 静电防护:存储/运输需使用防静电袋,生产时需接地工作台,避免静电击穿(薄膜层厚度仅几十纳米,静电敏感)。

该型号凭借“小体积、高精度、宽温稳定”的核心特性,成为精密电子电路的高性价比选择,可覆盖从消费电子到工业/汽车级的多场景需求,是替代进口高精度电阻的优质国产方案。

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