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. 179-9559
BrandRS PRO
TWD1,347.00
Each
units
Passive 10:1 150MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <2.33ns
New
RS Stock No. 201-7876
Mfr. Part No.P2056 Dual Pack
TWD5,774.00
Each (In a Pack of 2)
units
Passive 10:1 500MHz - BNC P2056 Dual Pack - - - - - -
RS Stock No. 801-4886
Mfr. Part No.DXC200
TWD41,842.00
Each
units
Passive 1:1 50MHz 500V - DXC200 2 - - - - 7 ns, 35 ns
RS Stock No. 773-3570
Mfr. Part No.VPS510-R
BrandFluke
TWD8,493.00
Each
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Passive 1:10 500MHz - BNC VPS510 1 CAT III 300V 190 II CAT III 300V 0.7ns
RS Stock No. 733-6145
Mfr. Part No.N2791A
TWD26,042.00
Each
units
Differential 1:10, 1:100 25MHz 700V BNC N2791A - CAT II 1000V ac N CAT II 1000 V ac 14ns
RS Stock No. 201-1877
Mfr. Part No.RT-ZS10
TWD60,919.00
Each
units
- 10:1 1GHz - BNC RT-ZS - - - - - -
RS Stock No. 898-6826
Mfr. Part No.TA150
TWD6,164.00
Each
units
Passive 1:10 350MHz - BNC - 1 CAT II - - - 1ns
RS Stock No. 201-1881
Mfr. Part No.RT-ZS60
TWD239,668.00
Each
units
- 10:1 6GHz - BNC RT-ZS - - - - - -
RS Stock No. 575-585
Mfr. Part No.P2221
BrandTektronix
TWD5,505.00
Each
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Passive 1:1, 1:10 200MHz - - P2221 - CAT II 150 V, 300 V - CAT II 15 V, CAT II 300 V -
RS Stock No. 123-6478
BrandRS PRO
TWD17,421.00
Each
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Differential, High Voltage 1:10, 1:100 50MHz 1.5kV - - 1 - - - - -
RS Stock No. 702-3906
Mfr. Part No.N2874A
TWD17,567.00
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Passive 1:10 1.5GHz - BNC N2874A - CAT I 8.5V N2870A CAT I 8.5V -
RS Stock No. 134-6157
Mfr. Part No.N2142A
TWD2,242.00
Each
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Passive 1:1, 1:10 75MHz - BNC 1000/3000 X-Series 1 CAT II 150 Vrms, 300 Vrms InfiniiVision CAT II 150 Vrms, CAT II 300 Vrms -
RS Stock No. 724-0924
Mfr. Part No.PP007-WS
TWD16,031.00
Each
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Passive 1:10 500MHz 400V BNC PP007-WS - CAT I, CAT II 300 V, 400 V PP CAT I 400 V, CAT II 300 V -
RS Stock No. 174-8878
Mfr. Part No.PP018-1
TWD12,246.00
Each
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Passive 1:10 500MHz 700V - - 1 CAT II - PP018 CAT II 300 Vrms 0.7ns
RS Stock No. 146-6615
BrandRS PRO
TWD1,486.00
Each
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Passive 1:1, 1:10 15 MHz, 150 MHz 600V BNC - 2 CAT I 600V - CAT I 600 V 2.3 ns, 24 ns
RS Stock No. 801-4880
Mfr. Part No.PP066
TWD75,460.00
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Passive 1:10, 1:20 7.5GHz 15V BNC, SMA PP066 - - - - - 47ps
RS Stock No. 667-2608
Mfr. Part No.U1562A
TWD6,251.00
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Passive 1:100 300MHz - - U1562A - CAT III 600V - CAT III 600 V -
RS Stock No. 898-6747
Mfr. Part No.TA042
TWD18,582.00
Each
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Active, Differential 1:100, 1:1000 100MHz 1kV - - 2 CAT III 1000 Vrms, 1400 V ac/dc - CAT III 1400 V ac/dc, 1000 Vrms 3.5ns
RS Stock No. 201-1882
Mfr. Part No.RT-ZZ80
TWD80,156.00
Each
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- 10:1 8GHz - BNC, SMA adapter RT-ZZ80 - - - - - -
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Mfr. Part No.RT-ZD40
TWD273,734.00
Each
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- 10:1 4.5GHz - BNC RT-ZD - - - - - -