Features a high input resistance of 10 MΩ to address a wide range of measurement needs with low probe loading.
The Keysight N2140A is an extremely low-cost passive probe that provides a switchable 10:1 / 1:1 attenuation and up to 200 MHz bandwidth. It features a high input resistance of 10 MΩ (switchable to 1 MΩ) to address a wide range of measurement needs with low probe loading.
The probe can be adjusted for both low-frequency compensation and high-frequency compensation. For the best measurements, you should compensate your probe to match its characteristics to the oscilloscope. This probe is compatible with Keysight InfiniiVision Series oscilloscopes with 1 MΩ input.
| Key Features |
| Bandwidth DC to 200 MHz |
| Cable length 1.3 m |
| Switchable 1:1 or 10:1 attenuation ratio |
| Input resistance of 1 MΩ (1:1) or 10 MΩ (10:1) |
| Maximum input of 150 Vrms CAT II (1:1) or 300 Vrms CAT II (10:1) |
| 100 pf (1:1) of 15 pf (10:1) input capacitance |
| Compatible with Keysight InfiniiVision Series oscilloscopes with 1 MΩ input |
| Specifications |
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| Switchable Passive Probes |
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| Series Overview |
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| Model | Bandwidth | Attenuation
Ratio
| Input
Impedance¹ ³
| Compensation
Range²
| Notes |
| N2142A | 6 MHz
70 MHz
| 1:1
10:1
| 1 MΩ // 100 pF +
10 MΩ // 15 pF +
| N/A
15 - 30 pF
| Low-cost 2-pack, recommended for InfiniiVision EDUX1000 X-Series |
| N2140A | 6 MHz
200 MHz
| 1:1
10:1
| 1 MΩ // 100 pF +
10 MΩ // 15 pF +
| N/A
15 - 30 pF
| Low-cost 2-pack, recommended for InfiniiVision EDUX1000 X-Series |
| N2889A | 10 MHz
350 MHz
| 1:1
10:1
| 1 MΩ // 60 pF +
10 MΩ // 11 pF +
| N/A
10 - 35 pF
| The most general-purpose passive probe |
Notes:
¹ Input impedance when terminated into oscilloscopes with 1-MΩ input terminations. For higher-bandwidth Infiniium oscilloscopes with 50-Ω input terminations only, the E2697A high impedance adapter can be purchased (includes 10073D 500-MHz passive probe) to provide a 1-MΩ input termination.
² For proper probe compensation (flatness), the oscilloscope’s input capacitance must be within the specified compensation range of the probe.
³ Capacitance at the probe tip of 1:1 probes is the specified probe capacitance plus the capacitance of the oscilloscope when terminated into 1-MΩ.
