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. 726-0041
Mfr. Part No.TPP0201
BrandTektronix
HK$736.92
Each
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. 851-3100
Mfr. Part No.PP020-1
HK$2,557.25
Each
units
Passive 1:10 500MHz - BNC PP020-1 - CAT I, CAT III 600 Vrms, 1500 V PP020 CAT I 1500 V, CAT III 600 Vrms 0.7ns
RS Stock No. 726-0035
Mfr. Part No.TPP0100
BrandTektronix
HK$563.23
Each
units
Passive 1:10 100MHz 300V BNC TPP0100 - CAT II 300V TPP CAT II 300 V -
RS Stock No. 898-6820
Mfr. Part No.TA133
HK$1,688.50
Each
units
Passive 1:10 500MHz - BNC - 1 CAT II - - - 700ps
RS Stock No. 667-2608
Mfr. Part No.U1562A
HK$1,464.32
Each
units
Passive 1:100 300MHz - - U1562A - CAT III 600V - CAT III 600 V -
RS Stock No. 796-6718
Mfr. Part No.P6247
BrandTektronix
HK$56,856.80
Each
units
Differential 1:1, 1:10 1GHz 25V BNC P6247 1 - - - - 350ps
RS Stock No. 512-5003
Mfr. Part No.MX9030-Z
BrandMetrix
HK$3,078.75
Each
units
Differential, Gripper 1:1, 1:20, 1:200 30MHz - - MX 9030-Z 5 CAT IV 600V - CAT IV 600 V 11.7ns
RS Stock No. 702-3899
Mfr. Part No.N2871A
HK$2,447.98
Each
units
Passive 1:10 200MHz - BNC N2871A - CAT I, CAT II 300 V, 400 V N2870A CAT I 400 V, CAT II 300 V -
RS Stock No. 724-0933
Mfr. Part No.PP008-1
HK$3,378.54
Each
units
Passive 1:10 500MHz 400V BNC PP008-1 - CAT I, CAT II 300 V ac, 400 V ac PP CAT I 400 V ac, CAT II 300 V ac -
RS Stock No. 714-0035
Mfr. Part No.10074D
HK$1,926.28
Each
units
Passive 1:10 150MHz - BNC 10074D - CAT I, CAT II 400 V, 500 V - CAT I 500 V, CAT II 400 V 2.33ns
RS Stock No. 879-3851
Mfr. Part No.DOX-MSO3LA
BrandMetrix
HK$6,581.20
Each
units
Logic - 20MHz - - DOX-MSO3LA 1 CAT I 300V DOX3000 CAT I 300 V -
RS Stock No. 174-8870
Mfr. Part No.HVD3106A-6M
HK$25,172.52
Each
units
Differential 1:50, 1:500 80MHz 6kV - - 1 CAT III - HVD3000A CAT III 1000 Vrms 4.4ns
RS Stock No. 825-1209
Mfr. Part No.68.9556-28
BrandStaubli
HK$765.74
1 Set
Set(s)
Passive 1:10 500MHz - BNC 68.9556-28 1 CAT III, CAT IV 600 V, 1000 V SET Isoprobe CAT III 1000 V, CAT IV 600 V -
RS Stock No. 179-9566
BrandRS PRO
HK$12,976.72
Each
units
Differential 1:100, 1:1000 70MHz 5kV BNC - 1 CAT I - - CAT I 5000 Vrms 5ns
RS Stock No. 174-8871
Mfr. Part No.HVD3206A
HK$24,367.92
Each
units
Differential 1:50, 1:500 120MHz 2kV - - 1 CAT I, CAT III 1000 Vrms, 1500 V dc, 2000 V HVD3000A CAT I 2000 V, CAT III 1000 Vrms, CAT III 1500 V dc 2.9ns
RS Stock No. 415-465
Mfr. Part No.VPS212-G
BrandFluke
HK$2,448.29
Each
units
Passive 1:10 200MHz - - VPS212 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. 825-1196
Mfr. Part No.68.9554-28
BrandStaubli
HK$906.46
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. 146-6109
Mfr. Part No.045
BrandRed Pitaya
HK$584.44
Each
units
- - - - - 045 - - - - - -
RS Stock No. 898-6788
Mfr. Part No.TA112
HK$7,923.12
Each
units
Active 1:10 1GHz 33V BNC - 2 - 20V - - -
RS Stock No. 898-6750
Mfr. Part No.TA044
HK$7,241.28
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
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