P6021

The Tektronix P6021 is a 125-turn AC current probe for oscilloscopes.

Manuals – Specifications – Links – Pictures

It can be used with the included passive termination box (011-0105-00), a type 134 current probe amplifier, or a 3A9 or 7A14 current probe amplifier scope plug-in.

Bandwidth is up to 52 MHz.

The P6021 has a contact to short the ring around the 7A14's BNC input to ground, to switch frequency compensation and gain.

The sister model P6022 has higher bandwidth but also a higher LF cut-off frequency and lower peak current rating.

Specifications

	P6021 passive	P6021 + 134	P6021 + 7A14	P6022 passive	P6022 + 134	P6022 + 7A14
Sensitivity	2 mA/mV or 10 mA/mV	1 mA/Div to 1 A/Div (scope @ 50 mV/Div)	1 mA/Div to 1 A/Div	1 mA/mV or 10 mA/mV	1 mA/Div to 1 A/Div (scope @ 50 mV/Div)	1 mA/Div to 1 A/Div
Bandwidth (-3 dB)	60 MHz @ 10 mA/mV	> 40 MHz	50 MHz	200 MHz @ 10 mA/mV	> 70 MHz	105 MHz
LF limit (-3 dB)	450 Hz @ 2 mA/mV 120 Hz @ 10 mA/mV	< 12 Hz	25 Hz	8500 Hz @ 1 mA/mV 935 Hz @ 10 mA/mV	< 100 Hz	250 Hz
Maximum current	15 Ap-p			6 Ap-p (> 10 kHz @ 1 mV/mA, > 3 kHz @ 10 mV/mA, < 10 MHz)

Prices

Year	1970	1974	1984	1986	1988
Catalog price	$121	$100	$345	$430	$450
2021 value	$850	$550	$910	$1,070	$1,040

Pictures

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  Tektronix P6021 with the 011-0105-00 passive termination box

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  P6021 catalog image

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  P6021A

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  Schematic (click to enlarge)

Measurement examples

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  Measuring diode reverse recovery

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  Small-signal diode reverse recovery, 20 mA/Div

Comparison of P6022 with passive termination @ 10 mA/Div (top trace) vs. P6021+134 (bottom trace).
The signal shown is a sawtooth from a HP3325A @ 5 V_p-p into 50 Ω = 100 mA_p-p.

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  100 Hz

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  1 kHz

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  10 kHz