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 Series Safety Category Rise Time
RS Stock No. 667-2604
Mfr. Part No.U1561A
MYR753.86
Each
units
Passive 1:10 250MHz - - U1561A - CAT III 600V - CAT III 600 V -
RS Stock No. 668-7161
Mfr. Part No.TDP1500
BrandTektronix
MYR26,239.07
Each
units
Active, Differential 1:1, 1:10 1.5GHz 25V - TDP1500 - - - TDP - 265ps
RS Stock No. 174-8866
Mfr. Part No.HVD3102A-NOACC
BrandLeCroy
MYR6,303.91
Each
units
Differential 1:100, 1:1000 25MHz 1.5kV - - 1 CAT III - HVD3000A CAT III 1000 Vrms 14ns
RS Stock No. 174-8873
Mfr. Part No.HVD3605A
BrandLeCroy
MYR16,738.31
Each
units
Differential 1:200, 1:2000 100MHz 600V - - 1 CAT I, CAT III 1000 Vrms, 1500 V dc, 6000 Vrms, 8485 V HVD3000A CAT I 6000 Vrms, CAT I 8485 V, CAT III 1000 Vrms, CAT III 1500 V dc 4.3ns
RS Stock No. 878-7610
Mfr. Part No.ZS1500
BrandLeCroy
MYR11,372.80
Each
units
Active 1:10 1.5GHz - ProBus ZS1500 2 - - ZS - -
RS Stock No. 825-1196
Mfr. Part No.68.9554-28
MYR293.71
1 Set
Set(s)
Passive 1:10 250MHz - BNC 68.9554-28 1 CAT III, CAT IV 600 V, 1000 V SET Isoprobe CAT III 1000 V, CAT IV 600 V -
RS Stock No. 830-3212
Mfr. Part No.WS3K-MSO
BrandLeCroy
MYR9,822.49
Each
units
- - 500MHz 30V - WS3K-MSO - - - WaveSurfer 3000 Series - -
RS Stock No. 668-7167
Mfr. Part No.TDP1000
BrandTektronix
MYR23,398.44
Each
units
Differential, High Voltage 1:5, 1:50 1GHz 30V - TDP1000 - - - TDP - 350ps
RS Stock No. 174-8877
Mfr. Part No.PP017-1
BrandLeCroy
MYR890.51
Each
units
Passive 1:10 250MHz 1.5kV - - 1 CAT II - PP017 CAT II 300 Vrms 1.4ns
RS Stock No. 712-1141
Mfr. Part No.P5122
BrandTektronix
MYR1,578.00
Each
units
High Voltage, Passive 1:100 200MHz - - P5122 - CAT II 600 V ac, 1000 V ac TPS2000 CAT II 1000 V ac, CAT II 600 V ac 2.2ns
RS Stock No. 878-7613
Mfr. Part No.ZD500
BrandLeCroy
MYR19,132.27
Each
units
Active, Differential 1:1 650MHz 18V ProBus ZD500 2 - - ZD - 650ps
RS Stock No. 898-6769
Mfr. Part No.TA058
MYR2,218.46
Each
units
Active, Differential 1:10 50MHz 600V - - 2 CAT I 600 Vrms, ±700 V - 600 Vrms, CAT I ±700 V -
RS Stock No. 825-1209
Mfr. Part No.68.9556-28
MYR514.82
1 Set
Set(s)
Passive 1:10 500MHz - BNC 68.9556-28 1 CAT III, CAT IV 600 V, 1000 V SET Isoprobe CAT III 1000 V, CAT IV 600 V -
RS Stock No. 752-7353
Mfr. Part No.THDP0100
BrandTektronix
MYR18,788.46
Each
units
Differential, High Voltage 1:100, 1:1000 100MHz 6kV BNC THDP0100 - CAT I, CAT III 1000 V, 2300 V THD CAT I 2300 V, CAT III 1000 V 3.5ps
RS Stock No. 825-1212
Mfr. Part No.68.9433-28
MYR356.71
1 Set
Set(s)
Passive 1:10 500MHz - BNC 68.9433-28 1 CAT III 300V SET Isoprobe CAT III 300 V -
RS Stock No. 672-1706
Mfr. Part No.ZS1000
BrandLeCroy
MYR5,990.64
Each
units
Active 1:10 1GHz - ProBus ZS1000 - - - ZS - -
RS Stock No. 898-6788
Mfr. Part No.TA112
MYR4,443.44
Each
units
Active 1:10 1GHz 33V BNC - 2 - 20V - - -
RS Stock No. 134-6157
Mfr. Part No.N2142A
MYR278.31
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. 136-8332
Mfr. Part No.CP030-3M
BrandLeCroy
MYR19,941.81
Each
units
- - 10MHz 300V ProBus CP030-3M 1 CAT I 300V CP030 CAT I ≤35ns
RS Stock No. 518-0987
Mfr. Part No.99.00173
MYR328.90
1 Set
Set(s)
Passive 1:10 250MHz - BNC 99.00173 - CAT II, CAT III 600 V, 1000 V - CAT II 1000 V, CAT III 600 V 1.2ns
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