Oscilloscope Probes

An oscilloscope is considered to be the most used instrument for electrical engineers who need to measure electrical characteristics of electronic devices but you also need at least one probe.
Things to consider when choosing probes
• Ensure the probe's input connector matches the connector on your scope
• Choose a probe whose input resistance and capacitance match the input resistance and capacitance of your scope - matching is critical for guaranteeing proper signal transfer and signal accuracy
The best approach, for matching a probe with a scope, is to first choose a probe whose capacitance is within the range of your scope and then fine-tune the probe's capacitance by adjusting its compensation network using the probe's trimmer capacitor.
The 1X probes are suitable for many low frequency applications. They typically offer the same input impedance of the oscilloscope which is normally 1 M Ohm. The most common type of probe with a built in attenuator gives an attenuation of ten, and it is known as a 10X oscilloscope probe
Types of probes
Passive probes are the most commonly used probes for taking measurements. They are easy to use, relatively inexpensive, and fairly rugged. Available in the following configurations:
• 1´: no attenuation
• 10´: factor-of-10 attenuation
• 100´: factor-of-100 attenuation
• 1000´: factor-of-1000 attenuation
Attenuation probes serve to multiply the voltage measurement range of the oscilloscope by using an internal resistor that, when used in conjunction with the input resistance of the scope, creates a voltage divider. Useful for the following reasons:
• It allows for the measurement of a signal that might exceed the limits of the oscilloscope.
• The attenuation circuitry results in higher resistance and lower capacitance, which is important for high-frequency measurements.
Active probes contain active components, such as FETs or amplifiers. Commonly used for taking high-speed measurements (>500 MHz) or on high-impedance circuits. One limitation is their limited voltage range.
Differential probes are popular for measuring high-frequency signals or signals of very low amplitude.
A current probe measures the electrical current flowing through a conductor.
Tips
• Always use an appropriate probe tip and/or probe tip adapter whenever possible
• Keep ground leads short

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Description Price Probe Type Attenuation Bandwidth Maximum Common Mode Input Voltage Connector Type Model Number p Number of Probes Safety Category Level Safety Category Voltage Calibrated Series Safety Category Rise Time
RS Stock No. 174-9604
Mfr. Part No.TA386
£27.00
Each
Units
Passive 1:1, 1:10 200MHz - Hook Clip TA386 1 - - - - - 35ns
RS Stock No. 922-5273
Mfr. Part No.PP026-2
BrandLeCroy
£605.00
Each
Units
Passive 1:10 500MHz - BNC PP026 1 CAT I, CAT II 400 Vrms, 500 Vrms - - CAT I 500 Vrms, CAT II 400 Vrms 700ps
RS Stock No. 134-6157
Mfr. Part No.N2142A
£44.90
Each
Units
Passive 1:1, 1:10 75MHz - BNC 1000/3000 X-Series 1 CAT II 150 Vrms, 300 Vrms - InfiniiVision CAT II 150 Vrms, CAT II 300 Vrms -
RS Stock No. 137-2360
Mfr. Part No.VPS410-II-G
BrandFluke
£182.58
Each
Units
Passive 1:10 500MHz - - VPS410-II-G - CAT III, CAT IV 600 V, 1000 V - VPS410 CAT III 1000 V, CAT IV 600 V -
RS Stock No. 174-8872
Mfr. Part No.HVD3206A-6M
BrandLeCroy
£2,435.00
Each
Units
Differential 1:50, 1:500 80MHz 1kV - - 1 CAT I, CAT III 1000 Vrms, 1500 V dc, 2000 V - HVD3000A CAT I 2000 V, CAT III 1000 Vrms, CAT III 1500 V dc 4.4ns
RS Stock No. 801-4886
Mfr. Part No.DXC200
BrandLeCroy
£923.10
Each
Units
Passive 1:1 50MHz 500V - DXC200 2 - - - - - 7 ns, 35 ns
RS Stock No. 136-5311
Mfr. Part No.PicoConnect 441
£29.00
Each
Units
Differential 1:1 15MHz - D9 Connector PicoConnect 441 1 CAT III 1000V - PicoConnect CAT III 1000 V -
RS Stock No. 177-1275
Mfr. Part No.T3PP300
BrandLeCroy
£71.40
Each
Units
Passive 1:1, 1:10 300MHz - - - - - - - T3DSO - -
RS Stock No. 174-8871
Mfr. Part No.HVD3206A
BrandLeCroy
£2,060.00
Each
Units
Differential 1:50, 1:500 120MHz 2kV - - 1 CAT I, CAT III 1000 Vrms, 1500 V dc, 2000 V - HVD3000A CAT I 2000 V, CAT III 1000 Vrms, CAT III 1500 V dc 2.9ns
RS Stock No. 144-8209
Mfr. Part No.RT-ZP05
£198.63
Each
Units
Passive 1:10 500MHz - BNC RT-ZP05 1 - - - RT-Z - 0.7ns
RS Stock No. 174-8870
Mfr. Part No.HVD3106A-6M
BrandLeCroy
£2,130.00
Each
Units
Differential 1:50, 1:500 80MHz 6kV - - 1 CAT III - - HVD3000A CAT III 1000 Vrms 4.4ns
RS Stock No. 174-8869
Mfr. Part No.HVD3106A
BrandLeCroy
£1,750.00
Each
Units
Differential 1:50, 1:500 120MHz 1.5kV - - 1 CAT III - - HVD3000A CAT III 1000 Vrms 2.9ns
RS Stock No. 174-8868
Mfr. Part No.HVD3106A-NOACC
BrandLeCroy
£1,520.00
Each
Units
Differential 1:50, 1:500 120MHz 1.5kV - - 1 CAT III - - HVD3000A CAT III 1000 Vrms 2.9ns
RS Stock No. 174-8867
Mfr. Part No.HVD3102A
BrandLeCroy
£1,440.00
Each
Units
Differential 1:100, 1:1000 25MHz 600V - - 1 CAT III - - HVD3000A CAT III 1000 Vrms 14ns
RS Stock No. 174-8866
Mfr. Part No.HVD3102A-NOACC
BrandLeCroy
£1,210.00
Each
Units
Differential 1:100, 1:1000 25MHz 1.5kV - - 1 CAT III - - HVD3000A CAT III 1000 Vrms 14ns
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