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High current needle: the behind the scenes hero helping new energy vehicles

Time:2026-02-27Reading:628Second


In today's booming new energy vehicle industry, various cutting-edge technologies are competing to bloom. However, behind this dazzling light, there is a fundamental yet crucial component silently supporting the advancement of industry technology - the high current needle.

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High current needle      
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A high current needle, also known as a high current probe, is a test probe specifically designed to carry high currents. Its unique structure enables it to stably transmit high currents during electronic testing. This type of probe has two significant characteristics: high testing current,Test conditions: high temperatureIt is precisely these characteristics that make it an indispensable testing component in the research and manufacturing process of new energy vehicles, and can be regarded as the behind the scenes hero driving the development of the industry.

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Why do new energy vehicles need it      
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1. Scale for High Voltage System Verification

As the vehicle platform evolves towards 800V or even higher voltage, the power density of the electrical system increases dramatically. The high current probe is a ruler for accurately measuring and evaluating the performance of battery packs, electric drive systems, and charging modules, ensuring that every "power artery" remains reliable under extreme working conditions.

2. Safe and reliable goalkeeper

Simulating continuous or instantaneous currents of hundreds of amperes in the laboratory, any small flaw in the contact point may indicate potential risks. High quality high current probes, with extremely low contact resistance, excellent conductivity, and high-temperature resistant materials, are the first to eliminate overheating and failure hazards from the testing end, providing safety protection.

3. A key link in the implementation of fast charging technology

The implementation of ultra fast charging technology not only requires the matching of batteries and charging stations, but also requires the testing process to accurately reproduce the working conditions of high current surges. The performance of high current probes directly determines whether the fast charging system can be fully validated through repeated testing, thereby ensuring the safe and reliable user experience of "charging like refueling".

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Core application scenarios      
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1. Three electrical system testing:From battery cells, modules to battery packs, from motor controllers to assemblies, high current probes are deeply involved in the performance and durability testing of every key component on the energy conversion and transmission chain.

2. Charging system verification:Both the on-board charger (OBC) and the DC fast charging interface require strict testing and calibration of their current carrying capacity and plug-in life through high current probes.

3.Special and Extreme Testing:The demand for high current probes in higher power applications such as commercial vehicles and construction machinery, as well as in extreme environmental simulation testing, is driving the expansion of testing technology towards higher boundaries.

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40 year original probe factory      
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The technological leap in the industry cannot be separated from the accuracy and reliability of basic testing tools. As a national high-tech enterprise with over 40 years of probe experience, Suntory has always focused on the research and development and large-scale manufacturing of various testing probes. We deeply understand that in the profound industrial transformation of new energy vehicles, the accuracy and reliability of testing directly determine the speed and quality of product innovation.

Thanks to its fully self operated large-scale production lines and technological accumulation, Centalic can not only provide various standard high current probes, but also offer one-stop testing solutions and probe customization services to cope with increasingly complex testing challenges.

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Although high current probes are small components, they carry the great mission of ensuring industrial safety and performance. From rigorous validation in the laboratory to final quality inspection on the production line, it plays an irreplaceable role in every critical aspect of new energy vehicles. With the continuous evolution of technology, Centalic is willing to provide more solid and accurate testing guarantees for the industry through continuous improvement and innovation, and work together with industry partners to drive new energy vehicles towards a smarter and more reliable future.