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. 898-6744
Mfr. Part No.TA041
R 5,138.63
Each
units
Active, Differential 1:10, 1:100 25MHz 700V - - 2 CAT III ±700 V, 700 Vrms - CAT III ±700 V, 700 Vrms -
RS stock no. 898-6741
Mfr. Part No.TA043
R 8,748.32
Each
units
Active, Differential 1:10, 1:100 100MHz 700V - - 2 CAT III 500 Vrms, 700 V ac/dc - CAT III 700 V ac/dc, 500 Vrms 3.5ns
RS stock no. 898-6769
Mfr. Part No.TA058
R 6,487.55
Each
units
Active, Differential 1:10 50MHz 600V - - 2 CAT I ±700 V, 600 Vrms - CAT I ±700 V, 600 Vrms -
RS stock no. 898-6766
Mfr. Part No.TA057
R 5,138.88
Each
units
Active, Differential 1:20, 1:200 25MHz 1kV - - 2 CAT III ±1400 V, 1000 Vrms - CAT III ±1400 V, 1000 Vrms -
RS stock no. 898-6747
Mfr. Part No.TA042
R 7,990.07
Each
units
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. 898-6820
Mfr. Part No.TA133
R 2,829.35
Each
units
Passive 1:10 500MHz - BNC - 1 CAT II - - - 700ps
RS stock no. 898-6757
Mfr. Part No.TA046
R 16,260.63
Each
units
Active, Differential 1:10 800MHz 30V - - 1 - ±30V - - -
RS stock no. 174-9601
Mfr. Part No.TA375
R 327.06
Each
units
Passive 1:1, 1:10 100MHz - Hook Clip TA375 1 - - - - 35ns
RS stock no. 898-6826
Mfr. Part No.TA150
R 2,639.47
Each
units
Passive 1:10 350MHz - BNC - 1 CAT II - - - 1ns
RS stock no. 898-6781
Mfr. Part No.TA222
R 14,713.68
Each
units
Active 1:10 1.5GHz 20V BNC, SMA adapter - 2 - 20V - - -
RS stock no. 898-6785
Mfr. Part No.TA223
R 27,188.74
Each
units
Active 1:10 2.5GHz 20V BNC Adapter, SMA - 2 - 20V - - -
RS stock no. 136-5310
Mfr. Part No.PicoConnect 442
R 2,397.73
Each
units
Differential 1:25 10MHz 1kV D9 Connector PicoConnect 442 1 CAT III 1000V PicoConnect CAT III 1000 V -
RS stock no. 898-6836
Mfr. Part No.TA062
R 4,628.45
Each
units
Passive 1:10 1.5GHz 12V BNC - 1 - 12V - - 240ps
RS stock no. 898-6753
Mfr. Part No.TA045
R 14,064.91
Each
units
Active, Differential 1:10 200MHz 60V - - 2 CAT I ±60V - CAT I ±60V -
RS stock no. 898-6832
Mfr. Part No.TA061
R 4,357.84
Each
units
Passive 1:10 1.5GHz 12V SMA - 1 - 12V - - 240ps
RS stock no. 898-6788
Mfr. Part No.TA112
R 13,166.98
Each
units
Active 1:10 1GHz 33V BNC - 2 - 20V - - -
RS stock no. 136-5311
Mfr. Part No.PicoConnect 441
R 555.53
Each
units
Differential 1:1 15MHz - D9 Connector PicoConnect 441 1 CAT III 1000V PicoConnect CAT III 1000 V -
RS stock no. 898-6750
Mfr. Part No.TA044
R 12,160.08
Each
units
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. 174-9604
Mfr. Part No.TA386
R 516.69
Each
units
Passive 1:1, 1:10 200MHz - Hook Clip TA386 1 - - - - 35ns
RS stock no. 136-5316
Mfr. Part No.TA301
R 2,652.76
Each
units
Current - 20kHz - D9 Connector TA301 1 CAT II 150V TA300 CAT II 150 V -