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. 448-4351
Mfr. Part No.15120
BrandTestec
TWD18,237.00
Each
units
Active, Differential 1:100, 1:1000 100MHz 1kV BNC TT-SI 9110 - CAT III 1000 V ac, 1400 V ac/dc SI CAT III 1000 V ac, CAT III 1400 V 3.5ns
RS Stock No. 224-1219
Mfr. Part No.15101
BrandTestec
TWD10,038.00
Each
units
Active, Differential 1:10, 1:100 25MHz 700V BNC TT-SI 9001 - CAT III 1000 V ac, 1400 V ac/dc SI CAT III 1000 V ac, CAT III 1400 V 14ns
RS Stock No. 224-1225
Mfr. Part No.SI-9002
BrandTestec
TWD12,340.00
Each
units
Active, Differential 1:20, 1:200 25MHz 1kV - TT-SI 9002 - CAT III 1000 V ac, 1400 V ac/dc SI CAT III 1000 V ac, CAT III 1400 V 14ns
RS Stock No. 781-0801
Mfr. Part No.TCP312A
BrandTektronix
TWD79,512.00
Each
units
Current - 100MHz - BNC TCP312A 1 CAT II 150 V, 300 V TCP300 CAT II 150 V, CAT II 300 V 3.5ns
RS Stock No. 512-6438
Mfr. Part No.TT-SI 9101
BrandTestec
TWD26,298.00
Each
units
Active, Differential 1:10, 1:100 100MHz 1kV BNC TT-SI 9101 - CAT III 1000V ac SI CAT III 1000 V ac 3.5ns
RS Stock No. 734-5026
Mfr. Part No.P5205A
BrandTektronix
TWD58,573.00
Each
units
Differential, High Voltage 1:50, 1:500 100MHz 1kV - P5205A - CAT II 1000V P52XXA CAT II 1000 V -
RS Stock No. 752-7357
Mfr. Part No.THDP0200
BrandTektronix
TWD75,914.00
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. 752-7353
Mfr. Part No.THDP0100
BrandTektronix
TWD128,443.00
Each
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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. 898-6832
Mfr. Part No.TA061
TWD9,925.00
Each
units
Passive 1:10 1.5GHz 12V SMA - 1 - 12V - - 240ps
RS Stock No. 781-0807
Mfr. Part No.TCP0030A
BrandTektronix
TWD156,146.00
Each
units
Current - 120MHz - BNC TCP0030A 1 CAT II 150 V, 300 V TCP CAT II 150 V, CAT II 300 V 2.92ns
RS Stock No. 726-0041
Mfr. Part No.TPP0201
BrandTektronix
TWD3,126.00
Each
units
Passive 1:10 200MHz 300V BNC TPP0201 - CAT I, CAT II 300 V, 300 V ac, 400 V ac TPP CAT I 400 V ac, CAT II 300 V, CAT II 300 V ac 2.3ns
RS Stock No. 712-1141
Mfr. Part No.P5122
BrandTektronix
TWD11,622.00
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. 725-6604
Mfr. Part No.P6139B
BrandTektronix
TWD18,423.00
Each
units
Passive 1:10 500MHz - BNC P6139B - CAT II 300V - CAT II 300 V -
RS Stock No. 715-8746
Mfr. Part No.TPP0101-PK10
BrandTektronix
TWD17,738.00
1 Pack of 10
Pack(s)
Passive 1:10 100MHz 300V BNC TPP0101 - CAT I, CAT II 300 V, 300 V ac, 400 V ac TPP CAT I 400 V ac, CAT II 300 V, CAT II 300 V ac 3.5ns
RS Stock No. 209-7860
Mfr. Part No.P6243
BrandTektronix
TWD84,253.00
Each
units
Active 1:10 1GHz - BNC P6243 - - - - - 350ps
RS Stock No. 898-6750
Mfr. Part No.TA044
TWD28,186.00
Each
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Active, Differential 1:100, 1:1000 70MHz 5kV - - 2 CAT I 2500 Vrms, 7000 V ac/dc - CAT I 7000 V ac/dc, 2500 Vrms 5ns
RS Stock No. 208-9831
Mfr. Part No.10010
BrandTestec
TWD885.00
Each
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Passive 10x 150MHz 600V - TT-LF 212 - CAT I 600V LF CAT I 600 V 2.3ns
RS Stock No. 797-3390
Mfr. Part No.TPP0500B
BrandTektronix
TWD22,864.00
Each
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Passive 1:10 500MHz 300V Hook Clip TPP0500B 1 CAT II 300V TPP0 CAT II 300 V -
RS Stock No. 825-1203
Mfr. Part No.68.9559-23
TWD2,904.00
1 Set
Set(s)
Passive 1:100 500MHz - BNC 68.9559-23 1 CAT I, CAT III, CAT IV 600 V, 1000 V, 3540 V SET Isoprobe CAT I 3540 V, CAT III 1000 V, CAT IV 600 V -
RS Stock No. 716-7419
Mfr. Part No.VPS420-R
BrandFluke
TWD11,007.00
Each
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Passive 1:100 150MHz - - VPS420 R 1 CAT III 2000V ScopeMeter 190 CAT III 2000 V -