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. 796-2687
Mfr. Part No.TCP202A
BrandTektronix
MYR17,298.03
Each
units
AC/DC - 50MHz - - TCP202 - CAT I 300V TCP CAT I 300 V -
RS Stock No. 715-8743
Mfr. Part No.TPP0201-PK10
BrandTektronix
MYR3,582.83
1 Pack of 10
Pack(s)
Passive 1:10 200MHz 300V BNC TPP0201 - CAT I, CAT II 300 V, 300 V ac, 400V ac TPP CAT I 400 V, CAT II 300 V, CAT II 300V 2.3ns
RS Stock No. 898-6744
Mfr. Part No.TA041
MYR1,609.06
Each
units
Active, Differential 1:10, 1:100 25MHz 700V - - 2 CAT III ±700V, 700 V - CAT III ±700V, 700 V -
RS Stock No. 726-0038
Mfr. Part No.TPP0200
BrandTektronix
MYR441.52
Each
units
Passive 1:10 200MHz 300V BNC TPP0200 - CAT II 300V TPP CAT II 300V -
RS Stock No. 811-1246
Mfr. Part No.VPS420-V
BrandFluke
MYR1,627.00
Each
units
Passive 1:100 150MHz 300V - VPS420 - CAT III, CAT IV 600 V, 1000V VPS420 CAT III 1000 V, CAT III 2000 V, CAT IV 1200 V, CAT IV 600V -
RS Stock No. 224-1219
Mfr. Part No.15101
BrandTestec
MYR2,098.70
Each
units
Active, Differential 1:10, 1:100 25MHz 700V BNC TT-SI 9001 - CAT III 1000 V ac, 1400V ac/dc SI CAT III 1000 V, CAT III 1400V 14ns
RS Stock No. 481-0823
Mfr. Part No.P2220
BrandTektronix
MYR867.85
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. 714-0039
Mfr. Part No.10073D
MYR2,308.96
Each
units
Passive 1:10 500MHz - BNC 10073D - CAT II 400V - CAT II 400V 700ps
RS Stock No. 209-7860
Mfr. Part No.P6243
BrandTektronix
MYR16,052.80
Each
units
Active 1:10 1GHz - BNC P6243 - - - - - 350ps
RS Stock No. 734-5013
Mfr. Part No.P5100A
BrandTektronix
MYR3,488.89
Each
units
Passive 1:100 500MHz 1kV - P5100A - CAT II 1000V ac 5000 CAT II 1000V 700ps
RS Stock No. 898-6804
Mfr. Part No.TA167
MYR1,175.13
Each
units
AC/DC - 20kHz - - - - - - - - -
RS Stock No. 726-0041
Mfr. Part No.TPP0201
BrandTektronix
MYR424.85
Each
units
Passive 1:10 200MHz 300V BNC TPP0201 - CAT I, CAT II 300 V, 300 V ac, 400V ac TPP CAT I 400 V, CAT II 300 V, CAT II 300V 2.3ns
RS Stock No. 818-6802
Mfr. Part No.1146B
MYR3,796.11
Each
units
AC/DC - 100kHz - - 1146B - CAT II, CAT III 300 V, 600 V - CAT II 600 V, CAT III 300 V -
RS Stock No. 781-0801
Mfr. Part No.TCP312A
BrandTektronix
MYR13,721.20
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. 725-6604
Mfr. Part No.P6139B
BrandTektronix
MYR3,481.60
Each
units
Passive 1:10 500MHz - BNC P6139B - CAT II 300V - CAT II 300V -
RS Stock No. 212-039
Mfr. Part No.P01120043A
MYR2,021.42
Each
units
AC/DC Current - DC → 100kHz - BNC to Banana Plug E3N - CAT IV, CAT lll 300 V, 600V E CAT III 600V, CAT IV 300 V -
RS Stock No. 799-9042
Mfr. Part No.P01120047
MYR2,568.07
Each
units
AC/DC - DC → 100kHz - - E3N - CAT III, CAT IV 300 V, 600 V E CAT III 600 V, CAT IV 300 V -
RS Stock No. 733-6145
Mfr. Part No.N2791A
MYR3,677.88
Each
units
Differential 1:10, 1:100 25MHz 700V BNC N2791A - CAT II 1000V ac N CAT II 1000V 14ns
RS Stock No. 733-6148
Mfr. Part No.N2796A
MYR9,553.82
Each
units
Active 1:10 2GHz - - N2796A - - - N - 175ps
RS Stock No. 781-0810
Mfr. Part No.TCP305A
BrandTektronix
MYR12,818.31
Each
units
Current - 50MHz - BNC TCP305A 1 CAT II 150 V, 300 V TCP300 CAT II 150 V, CAT II 300 V 7ns