One Article to Know Rogowski AC Current Probe RCP Series
Micsig Rogowski AC Current Probe RCP Series is designed for high-frequency, high-current and high-voltage isolated measurement scenarios. This lineup consists of four sub-series: XS, S, M and L, with abundant customization options. It achieves a bandwidth up to 100 MHz and a maximum measurable current of 12000 Apk, with a typical accuracy of 2%. The probe can precisely capture high-frequency high-current signals, and is widely applied to double-pulse dynamic tests as well as real-time monitoring and analysis of AC current waveforms for wide-bandgap power semiconductors including SiC, GaN and IGBTs.
1. Key Specifications
- Temperature range from -40° C~125° C (Customizable)
- Bandwidth: 2Hz~100MHz(Varies by model; Customizable)
- Accuracy up to 2%
- Power supply: DC 12V
- Peak current: 60 ~ 12000 Apk
- Coil cross-section diameter: 1.6 mm / 3.0 mm / 4.5 mm / 8.0 mm(Customizable)
- Output impedance: 1 MΩ
- Universal output interface: Standard BNC connector, compatible with oscilloscopes of all brands
- BNC interface：Standard BNC interface to use on any oscilloscope
2. Product Advantages
Diverse Options for Coil Cross-Section Diameter
Available with coil cross-section diameters of 1.6 mm, 3.0 mm, 4.5 mm and 8.0 mm. The lightweight and flexible coil enables easy plug and play. It can reach confined areas inaccessible to rigid probes, allowing quick connection to the device under test.
Flexible Customization Service
Apart from standard products, the RCP Series supports personalized customization. Coil cross-section diameter, perimeter, cable length, withstand voltage and operating temperature can all be tailored to fit various testing scenarios.
Accurate Capture of High-Frequency Harmonics
With excellent high-frequency performance, the probe handles high-speed signals and rapidly changing current waveforms effortlessly. It supports measurement of MOSFET drain current and analysis of high-frequency harmonic components, greatly boosting efficiency in design and debugging.
Low Loading Effect for Authentic Signal Restoration
Nearly zero insertion impedance brings negligible impact on the circuit under test. It is ideal for current monitoring of low-power devices and precision power supplies, effectively avoiding measurement deviations caused by the loading effect of traditional probes.
3. Typical Application Scenarios
Power Electronics & Industrial Equipment
It accurately measures power quality of variable speed drives (VSD), uninterruptible power supplies (UPS), switching mode power supplies (SMPS) and other equipment. It supports AC current measurement for three-phase power systems, 50/60 Hz power frequency current, as well as high-frequency sine wave, pulse and transient current monitoring.
Third-Generation Semiconductor R&D
Capable of direct current measurement on pins of MOSFET and IGBT chips, it fully meets the requirements of double-pulse tests and power loss analysis for semiconductors.
Power Supply & Converter Development
It delivers outstanding performance in the development and troubleshooting of power converters, providing critical current data to optimize the performance of high-frequency switching power supplies, inverters and other devices.
5. Full-Range Model Selection
Micsig RCP Series includes four sub-series: RCP-XS, RCP-S, RCP-M and RCP-L. The product portfolio covers low-current precision measurement to high-current testing, helping users select the optimal model according to actual testing demands.
Featuring high flexibility, high precision and wide compatibility, Micsig Rogowski AC Current Probe RCP Series is suitable for most AC current measurement applications. It provides efficient and reliable current measurement solutions for semiconductor R&D, power electronics testing and industrial automation industries.
About Micsig
Founded in 2012, Micsig Technology is a nationally recognized “Little Giant” enterprise specializing in niche, specialized, and innovative fields. The company consistently pioneers cutting-edge technologies, focusing on oscilloscopes and probes, and has repeatedly broken new ground in the industry. It successfully developed the industry’s first fully touch‑controlled tablet-style oscilloscope, overturning the bulky form factor of traditional instruments. Additionally, its SigtestUI™ professional testing system-deeply customized on Android-has become the first platform tailored specifically for test‑oriented applications, effectively addressing engineers’ pain points of cumbersome portability and complex operation, and redefining the benchmark for portable test equipment.
Leveraging its proprietary SigOFIT™ core technology, Micsig has achieved a technological breakthrough in optical isolation probes, filling a domestic gap and taking a global leadership position, thereby addressing the challenging testing requirements of third-generation semiconductors (SiC/GaN) in high-voltage, highly interfered environments. Currently, the company has established a comprehensive product portfolio that includes high-resolution oscilloscopes and a full range of precision probes, providing robust support to key sectors such as new‑energy generation, energy storage and microgrids, electric vehicles, industrial power supplies, rail transit, motor drives, and digital energy.
Guided by the belief of “transcending the limits of testing,” Micsig relentlessly pursues microscopic precision in the physical world. With its unparalleled accuracy in test and measurement technologies, it safeguards the trust and confidence of customers worldwide, paving the way for an intelligent future where electrical power is efficient and reliably controllable.
