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
New
RS Stock No. 201-1873
Mfr. Part No.RT-ZHD07
TWD77,122.00
Each
units
High Voltage 25:1/250:1 200MHz - BNC RT-ZHD - - - - - -
RS Stock No. 733-6132
Mfr. Part No.N2889A
TWD5,568.00
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. 177-1275
Mfr. Part No.T3PP300
TWD3,345.00
Each
units
Passive 1:1, 1:10 300MHz - - - - - - T3DSO - -
RS Stock No. 733-6139
Mfr. Part No.N2795A
TWD43,978.00
Each
units
Active 1:10 1GHz - - N2795A - - - N - 350ps
RS Stock No. 851-3090
Mfr. Part No.PP019-1
TWD6,559.00
Each
units
Passive 1:10 250MHz - BNC PP019-1 - CAT I, CAT III 600 Vrms, 1500 V PP019 CAT I 1500 V, CAT III 600 Vrms 1.4ns
RS Stock No. 123-6479
BrandRS PRO
TWD32,461.00
Each
units
Differential, High Voltage 1:50, 1:500 70MHz 1.5kV - - 1 - - - - -
RS Stock No. 174-8873
Mfr. Part No.HVD3605A
TWD149,065.00
Each
units
Differential 1:200, 1:2000 100MHz 600V - - 1 CAT I, CAT III 1000 Vrms, 1500 V dc, 6000 Vrms, 8485 V HVD3000A CAT I 6000 Vrms, CAT I 8485 V, CAT III 1000 Vrms, CAT III 1500 V dc 4.3ns
New
RS Stock No. 201-1886
Mfr. Part No.RT-ZI10C
TWD11,397.00
Each
units
Passive 10:1 500MHz - BNC RT-ZI10C - - - - - -
RS Stock No. 146-6612
BrandRS PRO
TWD978.00
Each
units
Passive 1:1 25MHz 400V BNC - 1 CAT I 400V - CAT I 400 V 14ns
RS Stock No. 922-5255
Mfr. Part No.PP023-1
TWD13,490.00
Each
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Passive 1:10 500MHz - BNC PP023 1 CAT I, CAT II 400 Vrms, 500 Vrms - CAT I 500 Vrms, CAT II 400 Vrms 700ps
RS Stock No. 898-6836
Mfr. Part No.TA062
TWD10,962.00
Each
units
Passive 1:10 1.5GHz 12V BNC - 1 - 12V - - 240ps
RS Stock No. 179-9556
BrandRS PRO
TWD1,650.00
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. 518-0971
Mfr. Part No.99.00170
BrandStaubli
TWD1,813.00
1 Set
Set(s)
Passive 1:10 450MHz - BNC 99.00170 - CAT II, CAT III 600 V, 1000 V - CAT II 1000 V, CAT III 600 V 1ns
New
RS Stock No. 201-1882
Mfr. Part No.RT-ZZ80
TWD73,703.00
Each
units
- 10:1 8GHz - BNC, SMA adapter RT-ZZ80 - - - - - -
RS Stock No. 745-0705
Mfr. Part No.PPE4KV
TWD22,483.00
Each
units
Passive 1:100 400MHz - BNC PPE4KV - CAT I - PEE CAT I -
RS Stock No. 898-6781
Mfr. Part No.TA222
TWD34,812.00
Each
units
Active 1:10 1.5GHz 20V BNC, SMA adapter - 2 - 20V - - -
RS Stock No. 801-4880
Mfr. Part No.PP066
TWD75,460.00
Each
units
Passive 1:10, 1:20 7.5GHz 15V BNC, SMA PP066 - - - - - 47ps
RS Stock No. 863-3740
Mfr. Part No.ZS4000
TWD175,959.00
Each
units
Active 1:10 4GHz 8V ProBus ZS4000 1 - - ZS - -
RS Stock No. 918-6866
Mfr. Part No.HVD3206-6M
TWD119,340.00
Each
units
Differential 1:50, 1:500 80MHz 1kV - HVD3206-6M 2 CAT I, CAT III 1000 Vrms, 1500 V dc, 2000 (DC + Peak AC) V - Cat I 2000 (DC + Peak AC) V, Cat III 1000 Vrms, Cat III 1500 V dc 4.4ns
RS Stock No. 146-6623
BrandRS PRO
TWD2,294.00
Each
units
Passive 1:100 300MHz ± 700V BNC - 1 CAT I 2500V - CAT I 2500 V 1.2ns