Bourns推出CFG-A系列宽端子金属箔电流检测电阻，适用于汽车和高可靠性应用
Bourns今日宣布推出CFG-A系列宽端子金属箔电流检测电阻，提供0508和0612封装尺寸，额定功率高达2W，电阻范围1–30mΩ。该系列产品面向汽车及高可靠性应用，属于元器件新产品发布。
原文深度解读
本文介绍了Bourns公司推出的CFG-A系列宽端子金属箔电流检测电阻，适用于汽车和高可靠性应用。该系列提供0508和0612封装，额定功率最高2W，电阻范围1–30mΩ，符合AEC-Q200标准。文章涉及Bourns公司、产品经理Walter Garcia，以及产品特性、电气规格、目标应用和供货信息。该产品与电子元器件供应链相关，属于新型无源元件发布，面向汽车电动化市场。
- CFG-A系列提供0508和0612封装，额定功率最高2W，电阻范围1–30mΩ，符合AEC-Q200标准。
- 金属箔感应元件相比传统厚膜电阻具有更低TCR和更好的长期稳定性，宽端子结构降低热阻。
- AEC-Q200认证包括高温暴露、热循环（1000次）、偏置湿度（1000小时）和工作寿命（70°C下1000小时），电阻变化≤±1%。
- 低TCR低至±50 ppm/°C（≥5mΩ，依型号而定），工作温度范围-55°C至+155°C。
- 0612封装在70°C下额定2W，0508封装最高1.5W。
- 电阻值范围：CFG0508A为1–10mΩ，CFG0612A为1–30mΩ，公差±1%和±5%。
供应链影响
- 该产品发布可能影响汽车电子供应链中电流检测电阻的选型，取决于OEM对AEC-Q200认证元件的需求。
- 宽端子设计可能改善PCB热管理，可能减少散热设计需求，但取决于具体应用。
- 高功率额定值可能减少所需分流电阻数量，可能影响相关元件采购量，但取决于设计选择。
- 符合RoHS和卤素免费可能影响环保合规供应链，但取决于地区法规。
- 供货信息表明产品已可订购，可能影响库存和交期，但取决于市场需求。
系统解读，仅作为判断线索，不构成备货、出货、涨价或投资建议。
Bourns今日宣布推出CFG-A系列宽端子金属箔电流检测电阻，提供0508和0612封装尺寸。额定功率高达2W，电阻范围1–30mΩ，CFG-A系列符合AEC-Q200标准，专为汽车电力电子、电机驱动及其他需要精确、热稳定电流测量的高可靠性应用而设计。
汽车电气化，涵盖12V至48V轻混架构及更高电压，正在提高电流检测精度要求，同时压缩可用板空间。OEM正在将AEC-Q200认证的无源元件作为标准，紧凑型ECU和功率模块的设计师面临越来越大的压力，需要在不大幅增加PCB面积的情况下管理热热点。CFG-A系列通过其金属箔感应元件、宽端子结构和汽车级认证直接满足这些需求。
与传统厚膜电流检测电阻相比，CFG-A系列中的金属箔元件提供更低的TCR和更好的持续负载稳定性。宽端子几何结构降低了从电阻元件到PCB的热阻，减少局部发热并改善长期漂移性能。这些能力在需要产品生命周期内稳定电流测量的应用中提供了可衡量的优势。
“随着汽车功率水平攀升和ECU封装收紧，电流检测元件必须在更小的空间内提供更多功能。CFG-A系列为工程师提供了一条经过认证的路径，在他们已经设计的0508和0612封装中实现精确、热稳健的分流检测。” – Walter Garcia，Bourns电阻产品线经理
设计特性
• 金属箔感应元件 – 提供低电阻值，具有优异的稳定性和低漂移，适合精密电流测量
• 宽端子结构 – 降低热阻和机械应力，通过将热量分散到更大的焊盘区域，提高功率处理和板级可靠性
• 符合AEC-Q200 – 通过汽车可靠性标准认证，包括高温暴露、热循环（1000次）、偏置湿度（1000小时）和工作寿命（70°C下1000小时），电阻变化≤±1%
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• 低TCR – 对于≥5mΩ的值，低至±50 ppm/°C（依型号而定），在-55°C至+155°C工作范围内保持测量精度
• 额定功率高达2W – 0612封装在70°C下额定2W；0508最高1.5W，在空间受限设计中实现更高电流检测或减少分流数量
• 宽电阻范围 – CFG0508A为1–10mΩ，CFG0612A为1–30mΩ，公差±1%和±5%，为电源、电机驱动和输入放大器应用提供设计灵活性
• 湿度敏感等级1 – 可承受260°C峰值回流焊
• 符合RoHS*且无卤**
电气规格
型号 封装 电阻范围 额定功率 TCR（典型值）
CFG0508A 0508 1–10mΩ 最高1.5W @ 70°C ±75 / ±100 ppm/°C
CFG0612A 0612 1–30mΩ 最高2W @ 70°C ±50 / ±75 / ±100 ppm/°C
目标应用
• 汽车电池管理和动力总成电流检测
• 48V轻混和电动汽车电力电子
• 能源和存储电池管理系统（BMS）
• 电机驱动和变频驱动
• DC-DC转换器和开关电源
• 输入放大器和精密电流测量电路
供货情况 Bourns® CFG-A系列宽端子金属箔电流检测电阻现已供货。完整规格、订购信息和数据表可在电阻器 – AEC-Q200合规页面获取。样品可通过Bourns客户服务申请。
关于Bourns Bourns是一家私营制造商，生产电力电子、电阻元件、电路保护和传感解决方案。公司成立于1947年，总部位于加利福尼亚州里弗赛德，通过全球设计、制造和销售网络服务于汽车、工业、消费、通信、医疗***和音频市场。更多信息，请访问bourns.com。
Bourns today announced the CFG-A Series Wide-Terminal Metal Foil Current Sense Resistors, available in 0508 and 0612 footprints. Rated up to 2 W and covering a resistance range of 1–30 mΩ, the CFG-A Series is AEC-Q200-compliant and designed for automotive power electronics, motor drives, and other high-reliability applications where accurate, thermally stable current measurement is required.
Automotive electrification, spanning 12 V to 48 V mild-hybrid architectures and beyond, is raising current sensing accuracy requirements while simultaneously compressing available board space. OEMs are specifying AEC-Q200-qualified passives as standard, and designers of compact ECUs and power modules face growing pressure to manage thermal hotspots without enlarging their PCB footprint. The CFG-A Series addresses these demands directly through its metal foil sensing element, wide-terminal construction, and automotive-grade qualification.
Compared with conventional thick-film current sense resistors, the metal foil element in the CFG-A Series delivers lower TCR and better stability under sustained load. The wide-terminal geometry lowers thermal resistance from the resistive element to the PCB, reducing localized heating and improving long-term drift performance. These capabilities deliver a measurable advantage in applications where stable current measurement over the product lifecycle matters.
“As automotive power levels climb and ECU packaging tightens, current sensing components must deliver more in less space. The CFG-A Series gives engineers a qualified path to accurate, thermally robust shunt sensing in the 0508 and 0612 footprints they’re already designing around.” – Walter Garcia, Product Line Manager Resistors, Bourns
Design Features
• Metal foil sensing element – provides low resistance values with excellent stability and low drift over time, suited to precision current measurement
• Wide-terminal construction – lowers thermal resistance and mechanical stress, improving power handling and board-level reliability by spreading heat across a larger pad area
• AEC-Q200 compliant – qualified to automotive reliability standards, including High Temperature Exposure, Thermal Cycling (1,000 cycles), Biased Humidity (1,000 h), and Operational Life (1,000 h at 70 °C), with ≤±1% resistance change
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• Low TCR – down to ±50 ppm/°C for values ≥5 mΩ (model-dependent), maintaining measurement accuracy across the −55 °C to +155 °C operating range
• Power rating up to 2 W – 0612 footprint rated at 2 W at 70 °C; 0508 rated up to 1.5 W, enabling higher current sensing or reduced shunt count in space-constrained designs
• Broad value range – 1–10 mΩ (CFG0508A) and 1–30 mΩ (CFG0612A) with ±1% and ±5% tolerances, providing design flexibility across power supply, motor drive, and input amplifier applications
• Moisture Sensitivity Level 1 – solder reflow compatible to 260 °C peak
• RoHS compliant* and halogen free**
Electrical Specifications
Model Footprint Resistance Range Power Rating TCR (typ.)
CFG0508A 0508 1–10 mΩ Up to 1.5 W @ 70 °C ±75 / ±100 ppm/°C
CFG0612A 0612 1–30 mΩ Up to 2 W @ 70 °C ±50 / ±75 / ±100 ppm/°C
Target Applications
• Automotive battery management and powertrain current sensing
• 48 V mild-hybrid and EV power electronics
• Energy and Storage battery management systems (BMS)
• Motor drives and variable-frequency drives
• DC-DC converters and switching power supplies
• Input amplifier and precision current measurement circuits
Availability The Bourns® CFG-A Series Wide-Terminal Metal Foil Current Sense Resistors are available now. Full specifications, ordering information and data sheets are available at Resistors – AEC-Q200 Compliant. Samples may be requested through Bourns Customer Service.
About Bourns Bourns is a privately held manufacturer of power electronics, resistive components, circuit protection, and sensing solutions. Founded in 1947 and headquartered in Riverside, California, Bourns serves the automotive, industrial, consumer, communications, healthcare***, and audio markets through a global network of design, manufacturing, and sales operations. For more information, visit bourns.com.