【应用】国产分流贴片电阻ASR-K-3-5F用于PSU，阻值最低可到0.1mΩ，精度达到1%

时间： 2021-12-30 来源：世强

技术问答

PSU全称power supply unit，就是我们常说的电源模块，在各个产品中占据着重要的地位，它稳定性关系全局，那要怎样保证他的稳定性呢？监控它的输出电流是工程师们常用的技术方案，这其中，电阻采样的方案性价比很高。下面我们就来讨论业展电子分流贴片电阻 ASR-K-3-5F在PSU上的应用。

PSU简单框图

优势1：精度达到1%，电阻的精度越高，所测的电流越准确；

优势2：ASR系列阻值最低可到0.1mΩ，阻值越低，损耗的能量就越少，几乎不影响系统；

优势3：小身材大功率，2512的封装最高功率可达6W；

业展电子分流贴片电阻ASR系列还有电阻温度系数低至±20ppm/℃等优势，完全满足PSU上电流测试的功能。

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由陈启华提供，版权归世强硬创平台所有，非经授权，任何媒体、网站或个人不得转载，授权转载时须注明“来源：世强硬创平台”。

全部评论（0）

暂无评论

【应用】分流贴片电阻ASR-M-7-0.35F用在车载开关模块上检测负载的电流，±1%的精度可准确检测电流值

某客户的车载开关模块是纯硬件结构，通过逻辑芯片来控制MOS模块的通断，需要检测负载的电流来判断是否异常。客户要求精度高，电阻0.35mohm，功率要至少7W，并且满足车规要求。故笔者给客户推荐了业展电子的分流贴片电阻ASR-M-7-0.35F。

应用方案发布时间 : 2023-06-30

【应用】国产高精度金属合金电阻ASR-M-5-0.5F用于电子驻车执行器电机电流检测，70℃条件下额定功率可达9W

为保证EPB电子驻车执行器电机输出电流的精准性，通常选用车规级高精度金属合金电阻做电流采样，推荐国产业展电子高精度锰铜金属合金电阻ASR-M-5-0.5F，采样3920封装，精度为1%，典型阻值为0.5mΩ，100℃条件下额定功率达5W，70℃条件下额定功率达9W，具有高功率电流检测能力，温度系数TCR典型值为50ppm/K。

应用方案发布时间 : 2020-12-29

【应用】可用于车载EPS系统电流检测的国产精密合金电阻，阻值精度±1%、温度系数只有±20ppm

在汽车EPS系统控制模块ECU的设计中，主要是通过电流来控制助力转向，常规电流检测方案是采用分流电阻来实现，一般要求电阻值低于1毫欧，额定功率高于5W。推荐国产业展电子的分流合金电阻ASR-M-5系列，阻值范围0.2mΩ-1mΩ，额定功率最高达到9W，封装3920，低温漂，通过汽车AEC-Q200认证，适用于车载EPS系统电流检测电路。

应用方案发布时间 : 2021-02-08

业展电子电阻选型表

业展电子提供以下技术参数的电阻选型，工作温度：-65~170℃，精度：-5%~5%。

产品型号	品类	安规/环境规范	应用等级	等级认证标准	工作温度范围（最低）	工作温度范围（最高）	精度	阻值
ASR-M-3-0.3F	电阻	RoHS	工业级	国密一级	-65℃	+170℃	1%	0.3mΩ

选型表 - 业展电子立即选型

业展电子（YeZhan）与 ISA/VISHAY/BOURNS低阻值电阻器产品型号对照表

型号- ASR-M-3-0.3F,BRS,ASR-K-7-2F,WSL39214L000FEA,BVS-I-R004-1.0,BVB-I-R003-1.0,WSLP3921L5000FEA,BVS-M-R00075-1.0,WSLT3921L5000FEA,ASR-M-5-1.2F,ASR-M-5-0.5F,WSLP40261L000FEA,WSLT3921,SBB-M-1F-N-T5,WSLP40263L000FEA,WSL3921L6000FEA,WSL2726,ASR-K-7-1F,WSLT40263L000FEA,CSS2H-5930R-3L00F,ASR-M-5-0.6F,BVS-M-R0006-1.0,WSLT40261L000FEA,WSL3921,BVE-M-R0003-1.0,SBB-M-1F-Y-T5,WSL2726L5000FEA,BVT-I-R003-1.0,CSS2H-5930R-L500X,BRS-M-R003-1.0,WSL39212L000FEA,WSL59312L000FEA,WSLP39211L5000FEA,ASR-M-7-0.5F,WSLT2726,WSL59311L5000FEA,ASR-M-5-0.75F,ASR-M-3-0.5F,ASR-M-5-0.7F,WSLT39214L000FEA,BVE-I-R0015-1.0,WSLF25123L000FEA,ASR-K-7-1.5F,BVE-I-R001-1.0,SBN-M-4F-T2,WSLP27263L000FEA,ASR-K-5-5F,BVS-M-R0002-1.0,BVS-I-R001-1.0,WSL3921L7000FEA,WSLF2512L3000FEA,WSL40263L000FEA,WSLT5931L2500FEA,CSS2H-2512K-2L00F,BVB,BVE,WSLT39212L5000FEA,ASR-M-7-0.3F,BVS,BVR,WSLP5931L2500FEA,BVE-M-R0002-1.0,BVT,WSLT59313L000FEA,WSLF25122L5000FEA,ASR-K-5-4F,BVB-M-R001-1.0,ASR-M-7-0.75F,BVS-M-R00082-1.0,WSLP59313L000FEA,WSL3921L8200FEA,BVS-I-R003-1.0,WSL4026,WSLT27262L000FEA,WSLP3921L4000FEA,WSLP27262L000FEA,WSLP59312L5000FEA,SBB-M-0.3F-Y-T5,ASR-K-5-3F,WSLT3921L7000FEA,WSL39211L5000FEA,WSLT59312L5000FEA,WSLP39212L000FEA,WSL40262L000FEA,WSLT3921L4000FEA,BRS-A-R020-1.0,CSS2H,BRS-N-R010-1.0,SBN-M-3F-Y,BVT-I-R004-1.0,SBN-K-20F,ASR-M-3-3F,BVS-M-R0007-1.0,BVR-M-R0005-1.0,BVT-M-R0005-1.0,ASR-K-5-2F,BVE-M-R0007-1.0,WSLP2726L5000FEA,WSLT2726L5000FEA,WSLT3921L7500FEA,WSLT39212L000FEA,WSLF2512L5000FEA,WSLP3921L7000FEA,WSLF25122L000FEA,WSLF25125L000FEA,SBB-K-3F-N-T5,WSLT39215L000FEA,WSL5931,BVT-I-R0015-1.0,ASR-M-5-0.2F-T1,ASR-M-3-2F,WSLP3921,ASR-K-5-1F,WSLP3921L6000FEA,WSL5931L2500FEA,WSL27263L000FEA,WSLP39215L000FEA,WSLP2726,ASR-K-5-1.5F,SBN-M-5F-T2,SBB-K-3F-Y-T5,ASR-M-3-1F,WSL39213L000FEA,WSL59311L000FEA,ASR-M-7-0.7F,BVB-I-R002-1.0,WSLT3921L6000FEA,SBB-K-2F-N-T5,WSL39215L000FEA,WSL59312L5000FEA,BVS-M-R001-1.0,ASR-M-3-2.5F,WSLT5931L2000FEA,WSL3921L7500FEA,SBB-K-2F-Y-T5,BVS-I-R002-1.0,BRS-I-R030-1.0,WSLP5931L2000FEA,WSLT59311L5000FEA,WSLP40262L000FEA,BVS-I-R0025-1.0,ASR-K-3-5F,BVB-M-R0005-1.0,WSL5931L7500FEA,BVT-I-R0025-1.0,BVT-I-R005-1.0,CSS2H-5930R-L200X,WSLP3921L2000FEA,WSLT5931L7000FEA,BVE-I-R003-1.0,WSLT39211L5000FEA,ASR-M-5-1F,WSLP5931,ASR-K-3-4F,WSLP3921L7500FEA,CSS2H-5930R-L300X,WSL5931L2000FEA,SBN-K-15F-T3,BVS-M-R0004-1.0,CSS2H-5930R-2L00X,SBN-F-20F,WSLT39213L000FEA,ASR-K-5-2.5F,BRS-M-R005-1.0,WSLF25124L000FEA,SBB-M-0.5F-Y-T5,WSLP5931L7000FEA,WSLT3921L2000FEA,WSL5931L3000FEA,BVR-I-R003-1.0,WSLP39213L000FEA,BVE-M-R00025-1.0,WSLT40262L000FEA,SBN-K-10F,WSL27261L000FEA,WSL39211L000FEA,WSLP39212L5000FEA,WSL59313L000FEA,WSLP4026,WSLF,SBB-M-0.5F-N-T5,WSLT59311L000FEA,WSLT59312L000FEA,WSLP59311L000FEA,WSLP59312L000FEA,WSL5931L7000FEA,ASR-M-7-0.2F,WSLT27263L000FEA,BRS-M-R004-1.0,WSLT5931L7500FEA,ASR-M-3-1.5F,BVE-I-R002-1.0,BVS-I-R005-1.0,WSLP5931L7500FEA,WSLP39214L000FEA,WSL27262L000FEA,WSL3921L5000FEA,WSLT4026,BVT-M-R001-1.0,WSL3921L2000FEA,CSS2H-5930R-1L00X,BVE-M-R0075-1.0,SBN-K-30F-T2,BVE-I-R0025-1.0,BVT-I-R002-1.0,ASR-M-7-0.25F,WSL3921L4000FEA,BVR-M-R001-1.0,WSLT39211L000FEA,WSLF25121L000FEA,WSLF25121L5000FEA,BVS-M-R0005-1.0,BVS-I-R0015-1.0,ASR-K-7-3F,BRS-I-R015-1.0,WSLP3921L8200FEA,WSLP39211L000FEA,WSLP27261L000FEA,WSLT27261L000FEA,WSL40261L000FEA,ASR-M-5-0.82F,WSLT5931L3000FEA,WSL39212L5000FEA,WSLP59311L5000FEA,WSLT5931,WSLP5931L3000FEA,WSLT3921L8200FEA,ASR-M-5-0.4F,BVR-I-R002-1.0,BVT-M-R0003-1.0,ASR-K-7-2.5F

对照表 - ISABELLENHUETTE,VISHAY,业展电子,BOURNS PDF 中文下载

超低阻值（0.5,1,1.5mΩ）5W大功率平面贴片型6432尺寸分流电阻器

ROHM面向车载设备、工业设备和消费电子设备的电机控制电路和电源电路等应用，在标准型6432尺寸（6.4mm×3.2mm）金属板分流电阻器“PMR100”产品阵容中，推出3款额定功率为5W、电阻值分别为0.5mΩ、1.0mΩ、1.5mΩ的新产品。本文将为各位工程师呈现该产品的参考资料，助力您快速了解产品各项信息。

产品发布时间 : 2024-07-10

分流贴片电阻-ASR Series( Alloy Shunt Resistors-ASR Series)

型号- ASR-S-7,ASRM31F,ASR-F-3,ASR-F-5,ASR SERIES,ASR-F-7,ASR-K-3,ASR-M-3,ASR-K-5,ASR-M-5,ASR-K-7,ASR-M-7,ASR-S-3,ASR-S-5

数据手册 - 业展电子 PDF 中英文下载

业展电子与 ISA/VISHAY/BOURNS低阻值电阻器型号对照表

对标ISA/VISHAY/BOURNS低阻值电阻

产品型号	品类	对标 ISA系列	对标ISA型号	对标 VISHAY系列	对标 VISHAY型号
ASR-M-3-0.3F	低阻值电阻器	BVT	BVT-M-R0003-1.0	WSLF	WSLF2512L3000FEA

选型表 - 业展电子立即选型

PMR100HZP7 超低阻值（0.5,1,1.5mΩ）5W大功率平面贴片型6432尺寸分流电阻器

型号- PMR100HZP7FV,PMR100HZP7

商品及供应商介绍 - ROHM - 03.2024 PDF 中文下载

ASR-K-3-2D-C1 分流贴片电阻承认书 (ASR-K-3-2D-C1 Alloy Shunt Resistors SPECIFICATION FOR PRODUCT)

型号- ASR-K-3-2D-C1,ASR,ASR-2512,ASR SERIES,ASR-K,ASR系列

数据手册 - 业展电子 - A1.0 - 2-Aug-22 PDF 中英文下载

【产品】采用电子束焊接工艺的ASR系列分流贴片电阻，阻值低至0.1mΩ

业展电子推出的ASR系列分流贴片电阻，电阻温度系数低至±20ppm/°C和±50ppm/°C，且采用电子束焊接工艺，阻值低至0.1毫欧。

新产品发布时间 : 2020-10-04

探索未来科技的无限可能，业展电子亮相2023慕尼黑电子展，展示创新高性能合金电阻与解决方案

业展电子亮相2023慕尼黑电子展，展示创新技术与解决方案。本次参展推出了三款高性能电子元器件，包括标准电阻、车规级贴片电阻和分流器电流检测模块。这些产品在电子行业中广泛应用，具有极高的精度、可靠性和耐久性，能够满足不同应用场合的需求。

厂牌及品类发布时间 : 2023-11-04

【选型】分流贴片电阻ASR-K-7-2F用于450W汽车电子水泵BLDC电机相电流采样，精度为±1%

为保证450W汽车电子水泵BLDC电机相电流采样实现高精度检测，本文推荐业展电子分流贴片电阻ASR-K-7-2F，采用最新的kamar合金和电子束焊接结构技术，精度为±1%，典型阻值为2mΩ，典型温度系数TCR为±50ppm/℃，工作温度范围-65℃ ~ +170℃，功率高达7W（TA=70℃条件下）。

器件选型发布时间 : 2023-07-07

业展电子-BOURNS/VISHAY低阻值电阻器对照表

描述- 业展电子与BOURNS、VISHAY的低阻值电阻器型号对照表。

型号- ASR-M-3-0.3F,ASR-K-3-2.5F,WSL39215L000FEA,SBB-K-2F-N-T5,ASR-K-7-2F,WSL39214L000FEA,WSL59312L5000FEA,WSLP3921L5000FEA,WSLT3921L5000FEA,WSLT5931L2000FEA,WSL3921L7500FEA,SBB-K-2F-Y-T5,ASR-M-5-0.5F,WSLP5931L2000FEA,WSLP40261L000FEA,WSLP40262L000FEA,WSLT59311L5000FEA,SBB-M-1F-N-T5,WSLP40263L000FEA,WSL3921L6000FEA,ASR-K-3-5F,WSL5931L7500FEA,ASR-K-7-1F,WSLP3921L2000FEA,CSS2H-5930R-3L00F,WSLT40263L000FEA,WSLT5931L7000FEA,ASR-M-5-0.6F,WSLT40261L000FEA,WSLT39211L5000FEA,SBB-M-1F-Y-T5,WSL2726L5000FEA,WSL39212L000FEA,WSL59312L000FEA,ASR-M-5-1F,WSLP39211L5000FEA,ASR-K-3-4F,WSL59311L5000FEA,WSLP3921L7500FEA,ASR-M-5-0.75F,WSL5931L2000FEA,CSS2H-5930R-2L00X,ASR-M-3-0.5F,ASR-M-5-0.7F,WSLT39213L000FEA,WSLT39214L000FEA,ASR-K-5-2.5F,WSLF25123L000FEA,WSLF25124L000FEA,ASR-K-7-1.5F,WSLP5931L7000FEA,WSLT3921L2000FEA,WSLP27263L000FEA,WSL5931L3000FEA,ASR-K-5-5F,WSL3921L7000FEA,WSLF2512L3000FEA,ASR-K-3-3F,WSLP39213L000FEA,WSL40263L000FEA,CSS2H-2512K-2L00F,WSLT5931L2500FEA,WSLT39212L5000FEA,WSLT40262L000FEA,WSL27261L000FEA,WSL39211L000FEA,WSLP39212L5000FEA,ASR-M-7-0.3F,WSL59313L000FEA,SBB-M-0.5F-N-T5,WSLP5931L2500FEA,WSLT59313L000FEA,WSLF25122L5000FEA,WSLT59311L000FEA,WSLT59312L000FEA,ASR-K-5-4F,ASR-K-3-2F,ASR-M-7-0.75F,WSLP59311L000FEA,WSLP59312L000FEA,WSLP59313L000FEA,WSL5931L7000FEA,WSL3921L8200FEA,ASR-M-7-0.2F,WSLT27263L000FEA,WSLT27262L000FEA,WSLP3921L4000FEA,ASR-K-3-1.5F,WSLP27262L000FEA,WSLP59312L5000FEA,ASR-K-5-3F,WSLT3921L7000FEA,WSL39211L5000FEA,WSLT59312L5000FEA,WSLP39212L000FEA,WSL40262L000FEA,WSLT5931L7500FEA,WSLT3921L4000FEA,WSLP5931L7500FEA,WSLP39214L000FEA,WSL27262L000FEA,WSL3921L5000FEA,CSS2H-5930R-1L00X,WSL3921L2000FEA,ASR-K-5-2F,WSLP2726L5000FEA,WSLT2726L5000FEA,WSLT3921L7500FEA,WSL3921L4000FEA,ASR-M-7-0.25F,WSLT39212L000FEA,WSLT39211L000FEA,WSLF2512L5000FEA,WSLP3921L7000FEA,WSLF25121L000FEA,WSLF25122L000FEA,WSLF25125L000FEA,SBB-K-3F-N-T5,WSLF25121L5000FEA,WSLT39215L000FEA,ASR-M-5-0.2F-T1,ASR-K-5-1F,ASR-K-7-3F,WSLP3921L8200FEA,WSLP39211L000FEA,WSLP27261L000FEA,WSLT27261L000FEA,WSL40261L000FEA,ASR-M-5-0.82F,WSLT5931L3000FEA,WSL39212L5000FEA,WSL5931L2500FEA,WSLP3921L6000FEA,WSLP59311L5000FEA,WSL27263L000FEA,WSLP39215L000FEA,WSLP5931L3000FEA,ASR-K-5-1.5F,WSLT3921L8200FEA,ASR-M-5-0.4F,SBB-K-3F-Y-T5,ASR-M-3-1F,WSL39213L000FEA,ASR-K-7-2.5F,WSL59311L000FEA,ASR-M-7-0.7F,WSLT3921L6000FEA

对照表 - 业展电子