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. 799-9042
Mfr. Part No.P01120047
SGD745.33
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. 725-6604
Mfr. Part No.P6139B
BrandTektronix
SGD962.17
Each
units
Passive 1:10 500MHz - BNC P6139B - CAT II 300V - CAT II 300V -
RS Stock No. 796-2696
Mfr. Part No.TCP0020
BrandTektronix
SGD5,530.34
Each
units
AC/DC - 50MHz - - TCP0020 - CAT II 150 V, 300 V TCP CAT II 150 V, CAT II 300 V -
RS Stock No. 796-2683
Mfr. Part No.TCP303
BrandTektronix
SGD6,535.87
Each
units
AC/DC - 15MHz - - TCP303 - CAT I, CAT II, CAT III 300 V, 600 V TCP CAT I 600 V, CAT II 600 V, CAT III 300 V -
RS Stock No. 796-2687
Mfr. Part No.TCP202A
BrandTektronix
SGD5,114.27
Each
units
AC/DC - 50MHz - - TCP202 - CAT I 300V TCP CAT I 300 V -
RS Stock No. 499-627
Mfr. Part No.TCPA400
BrandTektronix
SGD5,200.96
Each
units
AC/DC - DC → 2 MHz - - TCPA400 - CAT I, CAT II, CAT III 300 V, 600 V TCP CAT I 600 V, CAT II 600 V, CAT III 300 V -
RS Stock No. 799-9008
Mfr. Part No.P01120057A
SGD1,170.71
Each
units
AC - 50kHz - - D38N - CAT III, CAT IV 300 V, 600 V D CAT III 600 V, CAT IV 300 V -
RS Stock No. 481-0823
Mfr. Part No.P2220
BrandTektronix
SGD279.85
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. 898-6750
Mfr. Part No.TA044
SGD1,188.75
Each
units
Active, Differential 1:100, 1:1000 70MHz 5kV - - 2 CAT I 2500 V, 7000V ac/dc - CAT I 7000V, 2500 V 5ns
RS Stock No. 224-1219
Mfr. Part No.15101
BrandTestec
SGD607.11
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. 702-7910
Mfr. Part No.11060A
SGD61.83
Each
units
Surface Mount Device - - - - 11060A - - - - - -
RS Stock No. 752-7357
Mfr. Part No.THDP0200
BrandTektronix
SGD4,152.94
Each
units
Differential, High Voltage 1:50, 1:500 200MHz 1.5kV BNC THDP0200 - CAT II, CAT III 600 V, 1000V THD CAT II 1000 V, CAT III 600V 1.8ps
RS Stock No. 781-0807
Mfr. Part No.TCP0030A
BrandTektronix
SGD7,940.11
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. 733-6139
Mfr. Part No.N2795A
SGD1,922.55
Each
units
Active 1:10 1GHz - - N2795A - - - N - 350ps
RS Stock No. 878-7613
Mfr. Part No.ZD500
SGD6,941.76
Each
units
Active, Differential 1:1 650MHz 18V ProBus ZD500 2 - - ZD - 650ps
RS Stock No. 919-5087
Mfr. Part No.VPS41
BrandFluke
SGD272.00
Each
units
Passive 1:10 40MHz - - - - - - - - -
RS Stock No. 734-5026
Mfr. Part No.P5205A
BrandTektronix
SGD3,033.90
Each
units
Differential, High Voltage 1:50, 1:500 100MHz 1kV - P5205A - CAT II 1000V P52XXA CAT II 1000V -
RS Stock No. 224-1225
Mfr. Part No.SI-9002
BrandTestec
SGD561.30
Each
units
Active, Differential 1:20, 1:200 25MHz 1kV - TT-SI 9002 - CAT III 1000 V ac, 1400V ac/dc SI CAT III 1000 V, CAT III 1400V 14ns
RS Stock No. 878-7604
Mfr. Part No.CP030A
SGD8,320.97
Each
units
AC/DC - 50MHz - - CP030A - CAT I 300V CP CAT I 300 V -
RS Stock No. 415-455
Mfr. Part No.VPS212-R
BrandFluke
SGD359.00
Each
units
Passive 1:10 200MHz - - VPS212 5 CAT II, CAT III 30 V, 600 V, 1000V ScopeMeter 190 CAT II 1000 V, CAT II 3 V, CAT III 600V -