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 Minimum Bandwidth Maximum Conductor Size
RS Stock No. 208-9831
Mfr. Part No.10010
BrandTestec
TWD885.00
Each
units
Passive 10x 150MHz 600V - TT-LF 212 - CAT I 600V LF CAT I 600 V 2.3ns - -
RS Stock No. 898-6750
Mfr. Part No.TA044
TWD28,338.00
Each
units
Active, Differential 1:100, 1:1000 70MHz 5kV - - 2 CAT I 2500 Vrms, 7000V ac/dc - CAT I 7000 V ac/dc, 2500 Vrms 5ns - -
RS Stock No. 481-0823
Mfr. Part No.P2220
BrandTektronix
TWD5,505.00
Each
units
Passive 1:1, 1:10 200MHz - - P2220 - CAT II 150 V, 300V TPS2000 CAT II 15 V, CAT II 300V - - -
RS Stock No. 209-7860
Mfr. Part No.P6243
BrandTektronix
TWD99,969.00
Each
units
Active 1:10 1GHz - BNC P6243 - - - - - 350ps - -
RS Stock No. 825-1203
Mfr. Part No.68.9559-23
BrandStaubli
TWD2,962.00
1 Set
Set(s)
Passive 1:100 500MHz - BNC 68.9559-23 1 CAT I, CAT III, CAT IV 600 V, 1000 V, 3540V SET Isoprobe CAT I 3540 V, CAT III 1000 V, CAT IV 600V - - -
RS Stock No. 384-888
Mfr. Part No.VPS210-G
BrandFluke
TWD9,446.00
Each
units
Passive 1:10 200MHz - - VPS210 5 CAT II, CAT III 30 V, 600 V, 1000V ScopeMeter 190 CAT II 1000 V, CAT II 3 V, CAT III 600V - - -
RS Stock No. 733-6141
Mfr. Part No.N2790A
TWD62,481.00
Each
units
Differential, High Voltage 1:50, 1:500 100MHz 1.4kV BNC N2790A - CAT II, CAT III 600 V, 1000V N CAT II 1000 V, CAT III 600V 3.5ns - -
RS Stock No. 825-1212
Mfr. Part No.68.9433-28
BrandStaubli
TWD3,216.00
1 Set
Set(s)
Passive 1:10 500MHz - BNC 68.9433-28 1 CAT III 300V SET Isoprobe CAT III 300V - - -
RS Stock No. 800-3004
Mfr. Part No.TPP0051
BrandTektronix
TWD1,126.00
Each
units
Passive 1:10 50MHz - BNC TPP0051 1 CAT II 300V - CAT II 300V 7ns - -
RS Stock No. 733-6154
Mfr. Part No.N2893A
TWD163,290.00
Each
units
AC/DC - DC to 100 MHz - - N2893A - CAT I 300V - CAT I 300 V - - -
RS Stock No. 796-6702
Mfr. Part No.P6015A
BrandTektronix
TWD92,850.00
Each
units
High Voltage 1:1000 75MHz 20kV - P6015A 1 - - - - 4ns - -
RS Stock No. 825-1196
Mfr. Part No.68.9554-28
BrandStaubli
TWD3,594.00
1 Set
Set(s)
Passive 1:10 250MHz - BNC 68.9554-28 1 CAT III, CAT IV 600 V, 1000V SET Isoprobe CAT III 1000 V, CAT IV 600V - - -
RS Stock No. 796-2696
Mfr. Part No.TCP0020
BrandTektronix
TWD118,107.00
Each
units
AC/DC - 50MHz - - TCP0020 - CAT II 150 V, 300 V TCP CAT II 150 V, CAT II 300 V - - -
RS Stock No. 702-3895
Mfr. Part No.N2870A
TWD9,658.00
Each
units
Passive 1:1 35MHz - BNC N2870A - CAT II 55V N287XA CAT II 55V - - -
RS Stock No. 733-6148
Mfr. Part No.N2796A
TWD89,164.00
Each
units
Active 1:10 2GHz - - N2796A - - - N - 175ps - -
RS Stock No. 734-5022
Mfr. Part No.P5202A
BrandTektronix
TWD65,059.00
Each
units
Differential, High Voltage 1:20, 1:200 100MHz 640V - P5202A - CAT I, CAT II 300 V, 450V P52XXA CAT I 45 V, CAT II 300V - - -
RS Stock No. 384-878
Mfr. Part No.VPS210-R
BrandFluke
TWD9,446.00
Each
units
Passive 1:10 200MHz - - VPS210 5 CAT II, CAT III 30 V, 600 V, 1000V ScopeMeter 190 CAT II 1000 V, CAT II 3 V, CAT III 600V - - -
RS Stock No. 922-5270
Mfr. Part No.PP026-1
TWD15,831.00
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. 702-7910
Mfr. Part No.11060A
TWD1,264.00
Each
units
Surface Mount Device - - - - 11060A - - - - - - - -
RS Stock No. 661-3295
Mfr. Part No.P6316
BrandTektronix
TWD25,390.00
Each
units
Logic, Passive - - - - P6316 - - - - - - - -