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. 898-6769
Mfr. Part No.TA058
MYR2,014.61
Each
units
Active, Differential 1:10 50MHz 600V - - 2 CAT I ±700 V, 600 Vrms - CAT I ±700 V, 600 Vrms -
RS Stock No. 825-1209
Mfr. Part No.68.9556-28
BrandStaubli
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 -
New
RS Stock No. 201-1874
Mfr. Part No.RT-ZHD15
MYR9,583.19
Each
units
High Voltage 50:1/500:1 100MHz - BNC RT-ZHD - - - - - -
RS Stock No. 174-8872
Mfr. Part No.HVD3206A-6M
MYR16,918.25
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. 702-3899
Mfr. Part No.N2871A
MYR1,640.61
Each
units
Passive 1:10 200MHz - BNC N2871A - CAT I, CAT II 300 V, 400 V N2870A CAT I 400 V, CAT II 300 V -
RS Stock No. 752-7357
Mfr. Part No.THDP0200
BrandTektronix
MYR12,606.87
Each
units
Differential, High Voltage 1:50, 1:500 200MHz 1.5kV BNC THDP0200 - CAT II, CAT III 600 V, 1000 V THD CAT II 1000 V, CAT III 600 V 1.8ps
RS Stock No. 773-3574
Mfr. Part No.VPS510-B
BrandFluke
MYR1,278.00
Each
units
Passive 1:10 500MHz - BNC VPS510 1 CAT III 300V 190 II CAT III 300V 0.7ns
RS Stock No. 734-5026
Mfr. Part No.P5205A
BrandTektronix
MYR8,365.00
Each
units
Differential, High Voltage 1:50, 1:500 100MHz 1kV - P5205A - CAT II 1000V P52XXA CAT II 1000 V -
RS Stock No. 922-5270
Mfr. Part No.PP026-1
MYR2,224.31
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. 661-3292
Mfr. Part No.TDP0500
BrandTektronix
MYR24,013.08
Each
units
Differential, High Voltage 1:5, 1:50 500MHz 30V - TDP0500 - - - TDP - 700ps
RS Stock No. 747-1862
Mfr. Part No.THP0301-Y
BrandTektronix
MYR1,227.34
Each
units
Passive 1:10 300MHz - BNC THP0301-Y - CAT III 300V THP CAT III 300 V -
RS Stock No. 384-888
Mfr. Part No.VPS210-G
BrandFluke
MYR1,246.00
Each
units
Passive 1:10 200MHz - - VPS210 5 CAT II, CAT III 30 V, 600 V, 1000 V ScopeMeter 190 CAT II 1000 V, CAT II 3 V, CAT III 600 V -
RS Stock No. 146-6612
BrandRS PRO
MYR145.63
Each
units
Passive 1:1 25MHz 400V BNC - 1 CAT I 400V - CAT I 400 V 14ns