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SMS-R010-1.0

10mOhm precision metal alloy current sense resistor, 1%, 5W, 2512, +/-30ppm/C, AEC-Q200

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Manufacturer Part：

SMS-R010-1.0

Package：

2512 (6.35 x 3.10 x 0.65 mm)

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Description

Product Overview

The SMS-R010-1.0 is a Isabellenhuette product designed for electronic applications. It features compact design with reliable performance characteristics suitable for various industrial and consumer applications.

Key Specifications

Type Precision Metal Alloy Current Sense Resistor
Resistance 10 mOhm
Tolerance +/- 1%
Power Rating 5W
Temperature Coefficient +/- 30 ppm/C
Max Current 22A (calculated)
Technology Bulk metal alloy (Isabellenhuette ISA)
Series SMS
Package 2512 [6432 Metric]
Dimensions 6.35 x 3.10 x 0.65 mm
Operating Temperature -55 C to +170 C
Inductance < 5 nH (Typ)
Thermal EMF < 1 uV/K
Qualification AEC-Q200

Features

Ultra-low 10 mOhm metal alloy current sense resistor; High 5W power rating in compact 2512 package; +/-1% tolerance for accurate current measurement; Low TCR of +/-30 ppm/C; Very low inductance (<5 nH) for high-frequency applications; Low thermal EMF (<1 uV/K) for precision DC measurements; AEC-Q200 qualified for automotive use; 4-terminal Kelvin pad layout; Solid metal alloy element for long-term stability; RoHS compliant

Applications

Battery management system current monitoring; Electric vehicle current measurement; DC-DC converter current mode control; Motor drive overcurrent protection; Server and telecom power supplies; Precision power measurement; Inverter current feedback; Welding equipment current monitoring

The SMS-R010-1.0 from Isabellenhuette (ISA) is a 10 mOhm precision metal alloy current sense resistor from the SMS series, offering +/-1% tolerance, a low temperature coefficient of +/-30 ppm/C, and a high 5W power rating in a 2512 (6.35 x 3.10 mm) surface-mount package. Isabellenhuette is a renowned German manufacturer of precision resistive elements, and the SMS series represents their SMD current sensing product line using proprietary bulk metal alloy technology. The solid metal alloy element provides exceptional long-term stability, very low inductance (<5 nH typical), and low thermal EMF (<1 uV/K), making it suitable for both high-frequency AC and precision DC current measurement applications. The 4-terminal (Kelvin) pad layout eliminates solder joint resistance from the measurement path. AEC-Q200 qualified and rated for operation from -55C to +170C, the SMS-R010-1.0 is designed for demanding automotive and industrial current sensing applications where both accuracy and power handling are critical.

The SMS-R010-1.0 operates as a precision shunt resistor where current flowing through the 10 mOhm resistive element produces a proportional voltage drop (V = I x R). For a 10A current, the sense voltage is 100 mV, which falls within the optimal input range of most current sense amplifiers. The bulk metal alloy element is manufactured using Isabellenhuette’s proprietary metal alloy composition that provides a near-zero temperature coefficient at the operating point, resulting in the specified +/-30 ppm/C TCR. The low thermal EMF (<1 uV/K) is achieved by using matched materials at the metal-to-substrate interface, preventing thermocouple effects that would introduce DC offset errors in precision measurements. The 4-terminal Kelvin connection separates the current-carrying terminals from the voltage-sensing terminals, ensuring that the measured voltage represents only the voltage drop across the resistive element itself, not across the solder joints or PCB traces. The 5W power rating allows the resistor to handle continuous currents up to approximately 22A while maintaining the specified +/-1% resistance tolerance over the full automotive temperature range.

Terminal Name Type Function
1 I+ (Force+) Current Current input terminal; carries the load current through the sense element
1 V+ (Sense+) Voltage Kelvin sense terminal; measures voltage at the positive side (separate pad from force terminal)
2 I- (Force-) Current Current output terminal; carries the load current away from the sense element
2 V- (Sense-) Voltage Kelvin sense terminal; measures voltage at the negative side (separate pad from force terminal)
  • EV Battery Current Monitoring: Measures charge/discharge currents in electric vehicle battery packs with 5W power handling for high-current transients and AEC-Q200 automotive qualification.
  • Precision Power Measurement: Enables accurate power measurement in test equipment with low thermal EMF (<1 uV/K) preventing DC offset errors in precision DC measurements.
  • DC-DC Converter Control: Provides cycle-by-cycle current feedback in high-frequency DC-DC converters with <5 nH inductance preserving measurement accuracy at MHz switching frequencies.
  • Industrial Motor Drives: Monitors phase currents in industrial inverter drives with 5W rating handling overload transients and 170C max temperature for demanding thermal environments.
Manufacturer Part Number Package Resistance Notes
Vishay WSL2512R0100FEA 2512 10 mOhm Metal strip, 1%, 1W
TT Electronics ULR1-R010FT2 2512 10 mOhm Metal alloy, 1%, 1W, AEC-Q200
Bourns CST2512-10M 2512 10 mOhm Metal alloy, 1%, 1W
ROHM PSR2512-10M 2512 10 mOhm Metal plate, 1%, 1W
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

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If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Contact Us

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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5. Local Pickup in Shenzhen

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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