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. 898-6766
Mfr. Part No.TA057
$526.50
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. 898-6750
Mfr. Part No.TA044
$1,250.66
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. 811-1246
Mfr. Part No.VPS420-V
BrandFluke
$473.00
Each
units
Passive 1:100 150MHz 300V - VPS420 - CAT III, CAT IV 600 V, 1000 V VPS420 CAT III 1000 V, CAT III 2000 V, CAT IV 1200 V, CAT IV 600 V -
RS Stock No. 811-1259
Mfr. Part No.VPS420-B
BrandFluke
$463.54
Each
units
Passive 1:100 150MHz 1kV - VPS420 - CAT III, CAT IV 600 V, 1000 V VPS420 CAT III 1000 V, CAT III 2000 V, CAT IV 1200 V, CAT IV 600 V -
RS Stock No. 224-1225
Mfr. Part No.SI-9002
BrandTestec
$725.98
Each
units
Active, Differential 1:20, 1:200 25MHz 1kV - TT-SI 9002 - CAT III 1000 V ac, 1400 V ac/dc SI CAT III 1000 V ac, CAT III 1400 V 14ns
RS Stock No. 729-6643
Mfr. Part No.CP-3101R
BrandPINTEK
$62.61
Each
units
Passive 1:10 100MHz 300V - CP-3101R - CAT I, CAT II 300 V, 600 V CP CAT I 600 V, CAT II 300 V 3.5ns
RS Stock No. 825-1206
Mfr. Part No.68.9557-28
$172.92
1 Set
Set(s)
Passive 1:10 300MHz - BNC 68.9557-28 1 CAT III, CAT IV 600 V, 1000 V SET Isoprobe CAT III 1000 V, CAT IV 600 V -
RS Stock No. 811-1252
Mfr. Part No.VPS420-G
BrandFluke
$473.00
Each
units
Passive 1:100 150MHz 1kV - VPS420 - CAT III, CAT IV 600 V, 1000 V VPS420 CAT III 1000 V, CAT III 2000 V, CAT IV 1200 V, CAT IV 600 V -
RS Stock No. 384-888
Mfr. Part No.VPS210-G
BrandFluke
$473.00
Each
units
Passive 1:10 200MHz - - VPS210 5 CAT II, CAT III 30 V, 600 V, 1000 V ScopeMeter 190 CAT II 1000 V, CAT II 3 V, CAT III 600 V -
RS Stock No. 800-3004
Mfr. Part No.TPP0051
BrandTektronix
$49.94
Each
units
Passive 1:10 50MHz - BNC TPP0051 1 CAT II 300V - CAT II 300 V 7ns
RS Stock No. 726-0035
Mfr. Part No.TPP0100
BrandTektronix
$90.20
Each
units
Passive 1:10 100MHz 300V BNC TPP0100 - CAT II 300V TPP CAT II 300 V -
RS Stock No. 481-0823
Mfr. Part No.P2220
BrandTektronix
$254.80
Each
units
Passive 1:1, 1:10 200MHz - - P2220 - CAT II 150 V, 300 V TPS2000 CAT II 15 V, CAT II 300 V -
RS Stock No. 825-1196
Mfr. Part No.68.9554-28
$159.71
1 Set
Set(s)
Passive 1:10 250MHz - BNC 68.9554-28 1 CAT III, CAT IV 600 V, 1000 V SET Isoprobe CAT III 1000 V, CAT IV 600 V -
RS Stock No. 366-9141
Mfr. Part No.TT-HVP15 HF
BrandTestec
$440.65
Each
units
Passive 1:1000 50MHz 10kV BNC TT-HVP15 HF - CAT I - HVP - 7ns
RS Stock No. 825-1215
Mfr. Part No.68.9434-23
$112.96
1 Set
Set(s)
Passive 1:100 500MHz - BNC 68.9434-23 1 CAT III 300V SET Isoprobe CAT III 300 V -
RS Stock No. 716-7419
Mfr. Part No.VPS420-R
BrandFluke
$463.54
Each
units
Passive 1:100 150MHz - - VPS420 R 1 CAT III 2000V ScopeMeter 190 CAT III 2000 V -
RS Stock No. 224-1219
Mfr. Part No.15101
BrandTestec
$652.85
Each
units
Active, Differential 1:10, 1:100 25MHz 700V BNC TT-SI 9001 - CAT III 1000 V ac, 1400 V ac/dc SI CAT III 1000 V ac, CAT III 1400 V 14ns
RS Stock No. 715-8743
Mfr. Part No.TPP0201-PK10
BrandTektronix
$93.185
Each (In a Pack of 10)
units
Passive 1:10 200MHz 300V BNC TPP0201 - CAT I, CAT II 300 V, 300 V ac, 400 V ac TPP CAT I 400 V ac, CAT II 300 V, CAT II 300 V ac 2.3ns
RS Stock No. 733-6132
Mfr. Part No.N2889A
$238.19
Each
units
Passive 1:1, 1:10 350MHz - BNC N2889A - CAT I, CAT II 150 V ac, 300 V ac N28XXA/B CAT I 15 V ac, CAT I 300 V ac, CAT II 15 V ac, CAT II 300 V ac 1 ns, 35 ns
RS Stock No. 825-1212
Mfr. Part No.68.9433-28
$112.70
1 Set
Set(s)
Passive 1:10 500MHz - BNC 68.9433-28 1 CAT III 300V SET Isoprobe CAT III 300 V -
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