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AC/DC Current Probe

TCP0150 Datasheet

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The TCP0150 is a high performance and easy-to-use 150 A AC/DC current probe designed for use and direct connection to the TekVPI™ probe interface.

Key performance specifications

  • DC to 20 MHz bandwidth
  • 150 ARMS maximum current capability
  • 500 a peak pulse current capability
  • High accuracy with typically less than 1% DC gain error
  • Accurately measures current levels as low as 5 mA

Key features

  • Easy-to-Use and accurate AC/DC current measurements
  • Connects directly to oscilloscopes with the TekVPI™ probe interface
  • Low noise and DC drift
  • Provides automatic units scaling and readout on the oscilloscope's display
  • Remote GPIB/USB probe control through the oscilloscope
  • Split-core probe head construction allows easy connection to conductors
  • Easy to degauss and autozero
  • Setup controls and probe status and diagnostic indicators are provided on both the probe hardware and through an Easy-to-Access scope UI display menu


  • Power supplies
  • Semiconductor devices
  • Power inverters/converters
  • Electronic ballasts
  • Industrial/consumer electronics
  • Motor drives
  • Transportation systems

This AC/DC current measurement probe provides 20 MHz of frequency bandwidth with selectable range control for 25 A and 150 A measurement ranges. It also provides low-current measurement capability and accuracy to current levels as low as 5 mA per division — important for achieving broad dynamic current range of high-level and low-level measurement signals.


All specifications are guaranteed unless noted otherwise. All specifications apply to all models unless noted otherwise.

Warranted characteristics


DC to ≥20 MHz (-3 dB). Derate with frequency. See Figure 1. (Calculated from Rise Time BW = .35/Rise Time)

Rise time

≤17.5 ns

Max RMS current

150 A

Max peak pulse current

500 A

Minimum sensitivity

5 mA (on oscilloscope's 1 mV/div setting)

AC coupling (on oscilloscopes that support AC/DC coupling)

Current ranges

25 A and 150 A

Maxbare-wire voltage

600 VRMS CAT I and II


Typical characteristics

DC accuracy

±1% typical (3% warranted)

Max amp-second product

25 A range
3,000 Aμs
150 A range
15,000 Aμs

Insertion impedance

0.03 Ω at 1 MHz

0.075 Ω at 5 MHz

0.125 at 10 MHz

0.3 at 20 MHz

Signal delay

≈ 21 ns

Displayed RMS noise

≤500 μARMS (probe only)

Physical characteristics

Cable length

2 m (79 in.)

Probe head size

26.8 cm (10.55 in.)
4.1 cm (1.6 in.)
15.6 cm (6.13 in.)

Max conductor diameter

21 mm x 25 mm (0.83 in. x 1.0 in.)

Shipping weight

0.7865 kg (1.734 lb.)

Power requirements

TCP0150 is powered directly by oscilloscopes with the TekVPI interface



0 ºC to +50 ºC
-40 ºC to +75 ºC


5% to 95% RH (Relative humidity) at up to +30 ºC

5% to 85% RH above 30 ºC up to +50 ºC, noncondensing

5% to 95% RH (Relative humidity) at up to +30 ºC

5% to 85% RH above 30 ºC up to +75 ºC, noncondensing


Up to 2,000 m (6,560 feet)
Up to 12,000 m (40,000 feet)

Recommended oscilloscopes

Oscilloscopes with the TekVPI probe interface.

Note: For best probe support, download and install the latest version of the oscilloscope software from

Performance graphs

TCP0150 draft 8Aug2022
TCP0150 insertion impedance
TCP0150 draft 8Aug2022
TCP0150 Max Peak Pulse versus PW
TCP0150 draft 8Aug2022
Do not apply currents greater than the max continuous current for more than 10 seconds to minimize heating effects.

Ordering information


AC/DC current probe with TekVPI interface.

Includes: Includes protective cover (016-1924-xx), certificate of traceable calibration, and data standard.


Language options

Opt. L0
English manual
Opt. L5
Japanese manual
Opt. L7
Simplified Chinese manual
Opt. L9
Korean manual

Service options

Opt. CA1
Single Calibration or Functional Verification
Opt. C3
Calibration Service 3 Years
Opt. C5
Calibration Service 5 Years
Opt. D3
Calibration Data Report 3 Years (with Opt. C3)
Opt. D5
Calibration Data Report 5 Years (with Opt. C5)
Opt. R3
Repair Service 3 Years (including warranty)
Opt. R5
Repair Service 5 Years (including warranty)
Opt. SILV600
Standard warranty extended to 5 years

Recommended accessories

Current loop, 1 turn, 50 Ω with BNC connector used for performance verification
TekVPI calibration fixture
Cal/Deskew fixture for DPO7000/70000 series