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. 179-9560
BrandRS PRO
$61.71
Each
units
Passive 10:1 100MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <3.5ns
RS Stock No. 146-6618
BrandRS PRO
$96.42
Each
units
Passive 1:10 300MHz 1.5kV BNC - 1 CAT I, CAT II 300 V, 600 V - CAT I 600 V, CAT II 300 V 1.2ns
RS Stock No. 146-6617
BrandRS PRO
$105.54
Each
units
Passive 1:1, 1:10 20 MHz, 250 MHz 600V BNC - 2 CAT I 600V - CAT I 600 V 1.4 ns, 18 ns
RS Stock No. 179-9558
BrandRS PRO
$91.95
Each
units
Passive 10:1 350MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <1ns
RS Stock No. 146-6612
BrandRS PRO
$32.53
Each
units
Passive 1:1 25MHz 400V BNC - 1 CAT I 400V - CAT I 400 V 14ns
RS Stock No. 179-9561
BrandRS PRO
$60.31
Each
units
Passive 10:1 100MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <3.5ns
RS Stock No. 146-6619
BrandRS PRO
$278.08
Each
units
Miniature 1:10 500MHz 500V BNC - 1 CAT I, CAT II 400 Vrms, 500 Vrms - CAT I 500 Vrms, CAT II 400 Vrms <0.7ns
RS Stock No. 179-9557
BrandRS PRO
$283.18
Each
units
Passive 10:1 500MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <1ns
RS Stock No. 179-9556
BrandRS PRO
$90.55
Each
units
Passive 1:1 and 10:1 Switchable 350MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <35ns
RS Stock No. 179-9565
BrandRS PRO
$865.30
Each
units
Active 1:10, 1:100 25MHz 700V BNC - - CAT III - - - 14ns
RS Stock No. 146-6622
BrandRS PRO
$73.52
Each
units
Passive 1:100 300MHz 1.5V BNC - 1 CAT I 1500V - CAT I 1500 V 1.2ns
RS Stock No. 179-9559
BrandRS PRO
$65.73
Each
units
Passive 10:1 150MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <2.33ns
RS Stock No. 146-6616
BrandRS PRO
$59.74
Each
units
Passive 1:1, 1:10 20 MHz, 250 MHz 600V BNC - 1 CAT I 600V - CAT I 600 V 1.4 ns, 18 ns
RS Stock No. 179-9566
BrandRS PRO
$2,613.38
Each
units
Differential 1:100, 1:1000 70MHz 5kV BNC - 1 CAT I - - CAT I 5000 Vrms 5ns
RS Stock No. 146-6615
BrandRS PRO
$78.59
Each
units
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. 179-9563
BrandRS PRO
$87.23
Each
units
Passive 10:1 200MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <1.75ns
RS Stock No. 179-9564
BrandRS PRO
$80.42
Each
units
Passive 10:1 200MHz - BNC - 1 CAT II 400 Vrms RS-TP CAT II 400Vrms <1.75ns
RS Stock No. 146-6621
BrandRS PRO
$1,397.59
Each
units
Active 1:10 1.2GHz 40V BNC - 1 - - - - 291ps
RS Stock No. 146-6626
BrandRS PRO
$14.72
Each
units
PC Oscilloscope Probe Kit - - - BNC - - - - - - -
RS Stock No. 146-6614
BrandRS PRO
$46.93
Each
units
Passive 1:1, 1:10 15 MHz, 150 MHz 600V BNC - 1 CAT I 600V RS-LF Series CAT I 600 V 2.3 ns, 24 ns
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