Measuring currents from 200 µA to 500 A with up to 120 MHz bandwidth
Pioneering Hall-sensor-based zero-flux current probe technology since the late 1990s, HIOKI delivers accurate current sensing across a wide bandwidth. Our advanced signal probes capture everything from microcurrents to high-speed transients with exceptional accuracy, and easily connect with oscilloscopes, memory recorders and power analyzers, ensuring reliable measurement and analysis.
Designed for versatility, our wideband sensors meet the demands of high-sensitivity measurements and large current observations.
Every Current, Every Detail - Find Your Perfect Match
Find the perfect current sensor for your needs, from 200 µA to 500 A with bandwidths up to 120 MHz.
With fast rise times (≤2.9 ns) and high sensitivities up to 10 V/A, these sensors perform reliably excel in power electronics evaluation, signal integrity analysis, and transient measurements.
| High-sensitivity down to 200 µA / up to 120 MHz | Micro-currents down to 1 mA / up to 120 MHz | Mid-range currents down to 10 mA / up to 100 MHz | Large currents from 150 A to 500 A | |||||
|---|---|---|---|---|---|---|---|---|
| Model | 🔗 CT6711 | 🔗 CT6710 | 🔗 CT6701 | 🔗 CT6700 | 🔗 3276 | 🔗 3273-50 | 🔗 3274 | 🔗 3275 |
| Bandwidth | 120 MHz | 50 MHz | 120 MHz | 50 MHz | 100 MHz | 50 MHz | 10 MHz | 2 MHz |
| Current ranges | 0,5 A | 5 A | 30 A | 5 A | 30 A | 150 A | 500 A | |||
| Sensitivity ranges | 10 V/A | 1 V/A | 0,1 V/A | 1 V/A | 0,1 V/A | |||||
| Rise time | ≤ 2,9 ns | ≤ 7,0 ns | ≤ 2,9 ns | ≤ 7,0 ns | ≤ 3,5 ns | ≤ 7 ns | ≤ 35 ns | ≤ 175 ns |
| Suitable power supplies | 🔗 3269 | 🔗 3269 🔗 3272 | ||||||
| Maximum conductor diameter | φ5 mm | φ20 mm | ||||||
Small Currents, Big Insights - Precision from DC to 120 MHz
High-sensitivity down to 200 μA – up to 120 MHz bandwidth: CT6711 & CT6710
Two high-performance, high-sensitivity current probes, engineered to accurately monitor and analyze various current levels with the sensitivity to accurately measure weak signals down to 200 μA - available in two bandwidth options: DC to 120 MHz and DC to 50 MHz.
With three selectable current ranges - 30 A, 5 A, and 500 mA - both sensors enable to accurately monitor and analyze various current levels from micro currents to large transient surges when evaluating high-speed switching devices.
Key features
- DC to 120 MHz (CT6711) | DC to 50 MHz bandwidth (CT6710)
- 200 μA to 30 A measurable current
- 3 current ranges: 500 mA, 5 A, 30 A
Micro-currents down to 1 mA – up to 120 MHz bandwidth: CT6701 & CT6700
With a current range up to 5 A, these high-performance current probes ensure accurate signal analysis with a 1 V/A sensitivity over wide bandwidths of DC to 120 MHz (CT6701) and DC to 50 MHz (CT6700). This makes them ideal for power electronics, semiconductor testing, and mobility applications.
Key features
- DC to 120 MHz (CT6701) | DC to 50 MHz bandwidth (CT6700)
- 1 mA to 5 A measurable current
Connection is Everything: BNC – Reliable Data Transfer
No matter which model you choose: All sensors feature standard BNC output and connect effortlessly to any oscilloscope and data acquisition system for precise and reliable current measurements.
Their high-impedance signal output supports accurate waveform analysis across a wide frequency range without the need for additional signal conditioning ensuring unmatched versatility across test environments.
A Solution for Every Current – From Mid-range to Heavy
Stable measurement for mid-range currents up to 30 A and 100 MHz: 3276 & 3273-50
Both mid-range current probes deliver high sensitivity down to 10 mA and wide bandwidths of 100 MHz (3276) and 50 MHz (3273-50), ensuring precise detection of fast transients. Designed for power electronics, industrial systems, and mobility applications, these sensors provide reliable performance for both high-speed and small currents.
Key features
- DC to 100 MHz (3276) | DC to 50 MHz bandwidth (3273-50)
- 10 mA to 30 A measurable current
Large current observation from 150 A to 500 A - with high accuracy: 3274 & 3275
With a measurable continuous current up to 500 A (3275) and 150 A (3274), these sensors are built for precision and stability in high-current applications. Both current probes are ideal for monitoring power inverters, motor drives, and industrial systems, providing reliable measurement performance while overload protection safeguards against excessive currents.
Key features
3274
- DC to 10 MHz bandwidth
- Up to 150 A measureable current
3275
- DC to 2 MHz bandwidth
- Up to 500 A measurable current
Zero-Flux Current Sensors Explained: Like in “Back to the Future”?
Ever wondered how zero-flux current sensors work? This blog takes you behind the science of this cutting-edge technology - exploring its principles, applications, and why it might sound familiar. Check it out now:
Power Up Your Current Sensing!
Stable Power Supplies for Your Current Sensor Setup: 3269 & 3272
The 3269 Power Supply powers up to four sensors with 12 VDC and 2500 mA, making it ideal for multi-sensor applications, while the 3272, with 600 mA output, supports up to two sensors and offers a compact solution for lower-power needs. Both units ensure secure and stable power delivery.
Key features
3269
- Linear regulated power supply
- 2500 mA total maximum output current
3272
- 600 mA total maximum output current
High Bandwidth Current Observation with the Memory Recorder MR6000
Capture every detail of your current signals with the MR6000 Memory Recorder, engineered for high-speed, high-accuracy waveform recording. Whether you're analyzing inverter currents, power surges, or transient behavior, the MR6000 pairs with HIOKI’s zero-flux current sensors to deliver exceptional accuracy and stability.
With easy plug-and-play connectivity, the Z5021 eliminates the need for an external power unit, simplifying setup while ensuring stable and precise current waveform capture. You can connect up to 8 current probes to the MR6000 for multi-channel current measurement - perfect for power electronics testing, EV development, and industrial equipment analysis.
Key features
High-Speed Current Sensing for Precision Applications
Power Supplies & Converters (from mA to high A levels)
Optimize switching and linear power supplies, inverters, and converters with high-speed current analysis.
Semiconductor Testing (from µA to mid A ranges)
Capture precise current behavior in SCRs, IGBTs, MOSFETs, CMOS, and BJTs for efficiency and reliability
Industrial & Consumer Electronics (from mA to tens of A)
Ensure stable current flow and power integrity in high-speed electronic systems.
Mobile Communications (from µA to lower A)
Analyze RF amplifiers, satellite systems, and relay station power circuits for signal stability.
Motor Drives & Mobility Systems (from A levels to several hundred of A)
Monitor EVs, electric trains, avionics, and industrial motor drives for precise energy control and efficiency optimization.
Are Hall-based zero-flux sensors for you?
In a nutshell: Yes - if you measure lower currents, need wide-bandwidth measurement, and require a BNC connector system, this is for you.
Curious about how it compares to fluxgate-based sensors? Watch this 1-minute overview to get a quick breakdown of the key differences.