Products Description
Micro Ohm Manganin Welding Shunt Resistor is a high-precision resistor manufactured by electron beam laser welding process of red copper and manganin alloy materials, followed by precision stamping technology. This shunt resistor features an extremely low resistance value, usually reaching the micro-ohm level, making it highly suitable for high-precision current measurement and current shunting applications.
Manganin is an alloy containing manganese, copper, and a small amount of other metals, which boasts excellent temperature stability, a low temperature coefficient, and good electrical conductivity, thus being ideal for high-precision electrical applications. Through advanced welding and stamping processes, we are able to produce Latching Relay Manganin Shunt with high precision and superior stability, meeting the stringent requirements for accuracy and reliability across various application fields.
Product Advantages
Ultra-low temperature coefficient with stable resistance and no drift
The temperature coefficient of manganin alloy is close to zero. Combined with the heat-free damage process of electron beam laser welding, the Static Copper Plate with Manganese ensures negligible resistance drift within the wide temperature range of -40℃~125℃. This characteristic eliminates the impact of temperature fluctuations on latching relays, avoids misoperation of latching caused by resistance changes, and ensures the long-term operational stability of the system.
High power bearing capacity with balanced thermal conductivity and mechanical strength
The red copper support layer has excellent thermal conductivity, which can quickly dissipate the heat generated by large currents. Together with the high melting point of manganin alloy, the Copper Manganese can withstand instantaneous current shocks several times its rated power without failure. Meanwhile, the high strength of red copper ensures the structural rigidity of the component, meeting the long-term operational requirements of scenarios such as high-frequency vibration of industrial equipment and complex working conditions of new energy vehicles.
High precision consistency with error-free current measurement
Electron beam laser welding ensures perfect interfacial bonding between manganin and red copper without poor contact, and the precision stamping process accurately controls the resistor volume, thus confining the resistance deviation of the Shunt Terminal for Magnetic Latching Relays in the same batch to an extremely narrow range. In the current sampling of latching relays, such consistency guarantees the precise unification of the latching threshold of each device and avoids system performance fluctuations caused by individual differences.
High reliability design with excellent anti-interference and weather resistance
The composite structure of the Manganin Shunt for Electricity Meter features outstanding anti-electromagnetic interference performance, and the low-noise characteristic of the manganin layer ensures that the current sampling signal is free from external interference. The surface is passivated to resist corrosion in complex environments such as humidity and salt spray, maintaining stable performance even in outdoor power equipment, new energy vehicles, and other scenarios.
Customization and Services
- Performance Customization: We customize the composition of manganin alloy and the thickness of composite strips according to customers' requirements for current measurement accuracy and the temperature range of the equipment, to achieve precise matching with scenario characteristics.
- Structural Customization: We support the customization of special-shaped stamping forms and mounting hole positions for Customizable Copper Manganin Shunt Resistors, adapting to the magnetic circuit design and installation space requirements of different latching relays.
- Process Customization: For special application scenarios, we provide additional process optimizations such as passivation protection and insulating coating to enhance weather resistance and anti-interference capability.
- Packaging Customization: We support anti-static and moisture-proof packaging as well as vacuum-sealed packaging, meeting the protection needs for long-distance transportation and high-humidity areas.
We offer full-process technical support covering current measurement scheme design, process parameter suggestions, and performance testing: assist in evaluating the adaptability of Manganese Copper Shunts and provide professional advice on welding processes, stamping tolerances, etc.; provide free sample testing of Manganin Shunt Resistor for Current Measurements to verify the actual performance of the components in customers' equipment and reduce trial-and-error costs.
Our Manganese Copper Stampings have passed quality system certifications, including ISO9001-2015 and IATF16949, and comply with RoHS and REACH environmental protection standards. Delivery lead times: free samples in 1-2 days, newly molded samples in 20-30 days (including mold development and sample production), and mass production orders in 15-20 days (after order confirmation and payment).
Our technical team can conduct feasibility analysis on the replacement of Manganin Shunt for Single Phase Latching Relays based on customers' existing solutions, calculate the cost optimization brought by improved accuracy and extended service life, and assist in completing sample verification and mass production switchover to realize a seamless transition for cost reduction and efficiency improvement.
Final Solution
Proprietary Technology Accumulation
With over 20 years of in-depth engagement in the low-voltage electrical field, our core technical team hails from leading enterprises in the relay industry. We own a professional manganin alloy material laboratory, enabling precise control over manganin composition ratios and electron beam laser welding process parameters. Addressing the pain points of current measurement in latching relays, our technical solutions-from alloy formulations to welding processes-are custom-tailored for specific scenarios, rather than simple adaptations by general resistor manufacturers. This ensures the resistance stability of Manganin Copper Shunts across a wide temperature range, completely resolving the temperature drift issue of traditional components.
Quality Controllability
We possess a complete independent production line covering the entire process from manganin/copper raw material screening, electron beam laser welding, composite strip preparation, precision stamping forming, to finished product inspection, with no outsourcing in any link, thus eliminating quality fluctuations from the source. Complete production and inspection records are retained for each batch of Copper Manganin Shunts, with traceable welding strength, resistance precision, and temperature coefficient. The yield rate is stably maintained above 99.8%, far exceeding the industry average, which guarantees the performance consistency and long-term reliability of your equipment.
In-depth Adaptation Capability
We not only supply shunt resistor products, but also provide full-process optimization of current measurement solutions for customers based on our profound understanding of the magnetic circuit design of latching relays. From the customization of composite strip thickness to the adaptation of stamping shapes, we can accurately match component parameters according to customers' magnetic circuit design. Meanwhile, we offer free sample testing and technical support for Micro Ohm Manganin Welding Shunt Resistors, assisting customers in completing product verification and mass production switchover rapidly, and reducing trial-and-error costs and project cycles.
Contact Us
If you have any requirements concerning the procurement, selection, sample request, or customization of Micro Ohm Manganin Welding Shunt Resistor, or if you wish to obtain further information regarding product details, please do not hesitate to contact us. We will deploy a professional team to provide personalized one-on-one service, develop customized adaptation solutions, and guarantee stable supply, precise selection, and efficient procurement processes.
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