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. 512-5019
Mfr. Part No.MTX1032-B
BrandMetrix
HK$4,269.91
Each
units
Differential 1:1, 1:10, 1:100 30MHz - BNC MTX 1032-B 4 CAT I, CAT II, CAT III 600V - CAT I, CAT II, CAT III 600 V 11.7ns
RS Stock No. 224-1225
Mfr. Part No.SI-9002
BrandTestec
HK$3,202.06
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. 898-6744
Mfr. Part No.TA041
HK$2,899.82
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. 734-5013
Mfr. Part No.P5100A
BrandTektronix
HK$4,804.45
Each
units
Passive 1:100 500MHz 1kV - P5100A - CAT II 1000V ac 5000 CAT II 1000 V ac 700ps
RS Stock No. 898-6741
Mfr. Part No.TA043
HK$4,948.02
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. 224-1219
Mfr. Part No.15101
BrandTestec
HK$3,085.44
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. 898-6747
Mfr. Part No.TA042
HK$4,123.84
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. 481-0823
Mfr. Part No.P2220
BrandTektronix
HK$1,266.75
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. 661-3292
Mfr. Part No.TDP0500
BrandTektronix
HK$36,502.28
Each
units
Differential, High Voltage 1:5, 1:50 500MHz 30V - TDP0500 - - - TDP - 700ps
RS Stock No. 575-585
Mfr. Part No.P2221
BrandTektronix
HK$1,314.45
Each
units
Passive 1:1, 1:10 200MHz - - P2221 - CAT II 150 V, 300 V - CAT II 15 V, CAT II 300 V -
RS Stock No. 752-7353
Mfr. Part No.THDP0100
BrandTektronix
HK$31,043.59
Each
units
Differential, High Voltage 1:100, 1:1000 100MHz 6kV BNC THDP0100 - CAT I, CAT III 1000 V, 2300 V THD CAT I 2300 V, CAT III 1000 V 3.5ps
RS Stock No. 752-7357
Mfr. Part No.THDP0200
BrandTektronix
HK$19,260.94
Each
units
Differential, High Voltage 1:50, 1:500 200MHz 1.5kV BNC THDP0200 - CAT II, CAT III 600 V, 1000 V THD CAT II 1000 V, CAT III 600 V 1.8ps
RS Stock No. 773-3574
Mfr. Part No.VPS510-B
BrandFluke
HK$1,740.00
Each
units
Passive 1:10 500MHz - BNC VPS510 1 CAT III 300V 190 II CAT III 300V 0.7ns
RS Stock No. 898-6769
Mfr. Part No.TA058
HK$3,835.03
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
HK$3,185.70
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. 661-3295
Mfr. Part No.P6316
BrandTektronix
HK$5,673.07
Each
units
Logic, Passive - - - - P6316 - - - - - -
RS Stock No. 801-4877
Mfr. Part No.PP005A
BrandLeCroy
HK$2,940.00
Each
units
Passive 1:10 500MHz 500V BNC PP005A 1 CAT I, CAT II 300 V, 600 V - CAT I 600 V, CAT II 300 V -
RS Stock No. 734-5029
Mfr. Part No.P5200A
BrandTektronix
HK$10,442.75
Each
units
Differential, High Voltage 1:50, 1:500 50MHz 1kV - P5200A - CAT II 1000V P52XXA CAT II 1000 V -
RS Stock No. 518-0987
Mfr. Part No.99.00173
HK$517.18
1 Set
Set(s)
Passive 1:10 250MHz - BNC 99.00173 - CAT II, CAT III 600 V, 1000 V - CAT II 1000 V, CAT III 600 V 1.2ns
RS Stock No. 702-3902
Mfr. Part No.N2873A
HK$3,510.21
Each
units
Passive 1:10 500MHz - BNC N2873A - CAT I, CAT II 300 V, 400 V N2870A CAT I 400 V, CAT II 300 V -
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