P6021
The Tektronix P6021 is a 125-turn AC current probe for oscilloscopes. It can be used with the included passive termination, 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 termination 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) | ||||
Manuals
- Tektronix P6021 Manual (PDF), earlier version with termination schematics
- Tektronix P6021 Manual (PDF), no schematics
- Description in 1971 Catalog (PDF)
Prices
| Year | 1970 | 1974 |
|---|---|---|
| Catalog price | $121 | $100 |
| 2017 value | $760 | $500 |
Pictures
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Tektronix P6021 with 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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BAT41 diode reverse recovery, 20 mA/Div
Comparison of P6022 with passive termination @ 10 mA/Div (top trace) vs. P6021+134 (bottom trace).
The a signal shown is a sawtooth from a HP3325A @ 5 Vp-p into 50 Ω = 100 mAp-p.
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100 Hz
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1 kHz
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10 kHz
