WMSIC Electronic Components

FOJAN FRL1206FR680TS

ModelFRL1206FR680TS
Package1206
BrandFOJAN
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

19 specifications

Core information

Product name
FOJAN FRL1206FR680TS
Type
FOJAN
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
FOJAN
Electronic Component
FRL1206FR680TS
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
680mΩ
Electronic Component
1
Electronic Component
BM0264520460
Operating Temperature
55℃~+155℃
Operating Voltage
500V
Electronic Component
±200ppm/℃
Resistor Type
Resistor

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

FRL1206FR680TS 厚膜电阻产品概述

FRL1206FR680TS是富捷电子(FOJAN)推出的一款1206封装低阻值厚膜电阻,针对高精度电流检测、小信号分压等场景优化设计,兼顾成本与可靠性,适用于消费电子、工业控制及电源领域的批量应用。

一、产品核心定位

该电阻属于低阻值厚膜功率电阻范畴,区别于传统高阻厚膜电阻,主打“小体积、低阻值、高精度”特性:

  • 阻值仅680mΩ(毫欧级),适合电流采样场景(低功耗、不影响电路负载);
  • 1206封装(英制尺寸,对应公制3216),兼容常规SMT贴装产线,批量生产效率高;
  • 覆盖工业级温区,满足严苛环境下的长期稳定运行。

二、关键参数详解

以下为产品核心参数的实际应用意义:

1. 阻值与精度

  • 标称阻值:680mΩ(0.00068Ω),属于毫欧级低阻,专为电流检测设计(避免采样电阻功耗过大导致发热);
  • 精度:±1%,满足大部分工业控制、消费电子的电流检测精度需求(如电池管理系统BMS的电流误差控制在1%以内)。

2. 功率与电压限制

  • 额定功率:250mW,实际使用需注意功率降额(建议降额50%以上,即实际功率≤125mW);
  • 额定电压:500V,需同时满足“电压≤500V”和“功率≤250mW”,实际最大电流由功率决定:
    ( I_{max} = \sqrt{\frac{P}{R}} = \sqrt{\frac{0.25W}{0.00068Ω}} ≈ 19.3A )(仅为理论值,需结合降额)。

3. 温度特性与工作温区

  • 温度系数(TC):±200ppm/℃,即温度每变化1℃,阻值变化±0.02%;若环境温度变化100℃,阻值偏差约±0.2%,满足常规环境下的稳定性;
  • 工作温度:-55℃~+155℃,覆盖工业级温区,可适应车载、户外设备等高低温场景。

三、封装与工艺特性

1. 1206封装优势

  • 尺寸:英制1206(3.2mm×1.6mm),体积小巧,适合高密度PCB设计;
  • 贴装兼容性:支持常规回流焊、波峰焊,手工焊需注意温度控制(峰值≤350℃);
  • 散热:厚膜电阻的陶瓷基底散热性能优于薄膜,低阻值下不易过热。

2. 厚膜工艺特点

  • 生产:采用丝网印刷+高温烧结工艺,成本低于薄膜电阻,适合批量采购;
  • 可靠性:厚膜层附着力强,耐冲击、耐振动性能优于碳膜电阻,长期使用阻值漂移小;
  • 抗湿:陶瓷基底与厚膜层的组合,降低了湿度对阻值的影响。

四、典型应用场景

1. 电流检测与采样

  • 电池管理系统(BMS):用于锂电池组的充放电电流检测,低阻值可减少功耗,±1%精度满足SOC估算需求;
  • 电源适配器/开关电源:初级侧或次级侧的电流限制电路,配合运放实现过流保护;
  • 电机驱动电路:小型直流电机的电流反馈,控制电机转速与扭矩。

2. 小信号分压与滤波

  • 传感器接口电路:应变片、压力传感器的信号分压,500V耐压满足高压小信号场景;
  • 音频电路:小功率分压网络,调节信号幅度(需注意功率降额)。

3. 过流保护辅助

  • 熔断器配合:作为电流检测元件,触发熔断器或电子开关断开,避免电路损坏。

五、使用注意事项

  1. 功率降额:实际功率建议不超过额定值的50%(≤125mW),延长使用寿命;
  2. 焊接温度:回流焊峰值温度≤245℃(持续时间≤10秒),手工焊温度≤350℃(焊接时间≤3秒);
  3. 静电防护:虽抗静电能力优于薄膜电阻,但敏感电路中需采用ESD防护措施;
  4. 阻值匹配:若需更高精度,可并联多个电阻(需注意功率均分),但不建议串联(低阻串联增益小);
  5. 环境适应性:避免长期暴露在高湿度(>90%RH)或腐蚀性气体中,必要时加涂三防漆。

FRL1206FR680TS凭借低阻值、高精度与工业级可靠性,成为消费电子、工业控制等领域电流检测场景的高性价比选择,适合批量贴装与长期稳定运行。

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