The F-40-5 current probe has been specifically designed to measure very large amperage transients having pulse widths of 100 microseconds. It is capable of measuring 5,000 amperes with a pulse shape of a damped sinusoid half cycle of 10 kHz. A 10,000 ampere version is available upon request. The probe is calibrated for a frequency range of 10 Hz to 50 MHz. The transfer impedance is typically 0.1Wover the range of 10 kHz to 50 MHz.