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. 796-6702
Mfr. Part No.P6015A
BrandTektronix
TWD109,469.00
Each
units
High Voltage 1:1000 75MHz 20kV - P6015A 1 - - - - 4ns
RS Stock No. 818-6802
Mfr. Part No.1146B
TWD28,156.00
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. 733-6141
Mfr. Part No.N2790A
TWD65,456.00
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
TWD3,411.00
1 Set
Set(s)
Passive 1:10 500MHz - BNC 68.9433-28 1 CAT III 300V SET Isoprobe CAT III 300V -
RS Stock No. 668-7167
Mfr. Part No.TDP1000
BrandTektronix
TWD192,809.00
Each
units
Differential, High Voltage 1:5, 1:50 1GHz 30V - TDP1000 - - - TDP - 350ps
RS Stock No. 830-3212
Mfr. Part No.WS3K-MSO
TWD78,153.00
Each
units
- - 500MHz 30V - WS3K-MSO - - - WaveSurfer 3000 Series - -
RS Stock No. 898-6826
Mfr. Part No.TA150
TWD6,262.00
Each
units
Passive 1:10 350MHz - BNC - 1 CAT II - - - 1ns
RS Stock No. 797-3396
Mfr. Part No.TPP0250
BrandTektronix
TWD12,884.00
Each
units
Passive 1:10, 1:2 250MHz - - TPP0250 - - - TPP0 CAT II 300V -
RS Stock No. 726-0035
Mfr. Part No.TPP0100
BrandTektronix
TWD2,297.00
Each
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Passive 1:10 100MHz 300V BNC TPP0100 - CAT II 300V TPP CAT II 300V -
RS Stock No. 745-0708
Mfr. Part No.PPE5KV
TWD38,275.00
Each
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High Voltage, Passive 1:100 400MHz - BNC PPE5KV - CAT I - PEE CAT I -
New
RS Stock No. 215-0974
Mfr. Part No.PR250SA
TWD8,345.00
Each
units
Passive 1x/10x 250MHz 300V BNC PR250SA - - - - - -
RS Stock No. 702-3918
Mfr. Part No.N2876A
TWD18,425.00
Each
units
Passive 1:100 1.5GHz - BNC N2876A - CAT I 21V N2870A CAT I 21V -
RS Stock No. 898-6836
Mfr. Part No.TA062
TWD11,202.00
Each
units
Passive 1:10 1.5GHz 12V BNC - 1 - 12V - - 240ps
RS Stock No. 499-627
Mfr. Part No.TCPA400
BrandTektronix
TWD128,477.00
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. 512-6078
Mfr. Part No.TT-SI 9010
BrandTestec
TWD35,822.00
Each
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Active, Differential 1:100, 1:1000 70MHz 5kV BNC TT-SI 9010 - CAT I, CAT II 2500 V ac, 7000V ac/dc SI CAT I 2500 V, CAT II 7000V 5ns
RS Stock No. 738-9366
Mfr. Part No.ZD1000
TWD222,816.00
Each
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Active, Differential 1:1 1.2GHz 10V - ZD1000 - - - ZD - 375ps
RS Stock No. 898-6820
Mfr. Part No.TA133
TWD6,712.00
Each
units
Passive 1:10 500MHz - BNC - 1 CAT II - - - 700ps
New
RS Stock No. 215-0972
Mfr. Part No.PR2000B
TWD5,159.00
Each
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Passive 100x 200MHz 300V BNC PR2000B - - - - - -
RS Stock No. 744-4680
Mfr. Part No.PP011-1
TWD12,625.00
Each
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Passive 1:10 500MHz 400V BNC PP011-1 - CAT I, CAT II 300 V ac, 400V ac - CAT I 400 V, CAT II 300V -
RS Stock No. 146-6615
BrandRS PRO
TWD1,510.00
Each
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Passive 1:1, 1:10 15 MHz, 150MHz 600V BNC - 2 CAT I 600V - CAT I 600V 2.3 ns, 24ns