The N2874A passive probe offers DC to 1.5 GHz and 10:1 attenuation factor to measure fast edges in high speed applications more accurately. This probe needs 50 Ω input on the oscilloscope.
Compact 2.5-mm probe head diameter, low input capacitance, and various fine-pitch probe tip accessories make the Keysight N2870A Series passive probes ideal for probing densely populated IC components or surface-mount devices used in today’s high-speed digital applications.
The sharp probe tip is spring loaded to help engineers keep the probe from slipping off the device under test. Insulating IC caps keep the small probe tip centered on the IC lead and keep it from shorting adjacent leads. Standard flat blade ground connector and self-adhesive copper ground pad help reduce ground inductance while offering easy ground access. Optional probe tip accessories provide specialized capabilities for demanding applications.
Compatible with Keysight InfiniiVision and Infiniium Series oscilloscopes with 50 Ω input. Recommended for measuring 50 Ω transmission line or signals with low source impedance (<50 Ω).
| Key Features |
| 1.5 GHz bandwidth |
| 10:1 attenuation ratio |
| 2 pF input capacitance |
| 500 Ω input resistance (when terminated into 50 Ω scope input) |
| 8.5V CAT I maximum input voltage |
| Specifications |
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N2870A Series
Passive Probes
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| Model Overview |
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| Model Number | Bandwidth
(–3 dB)
| Attenuation Ratio | Input C | Input R
(Scope and Probe)
| Max Input Voltage
(AC RMS)
| Scope Input Coupling | Scope Comp Range |
| N2870A | 35 MHz | 1:1 | 39 pF (+oscilloscope) | 1 MΩ | 30 Vrms mains isolated, 60 Vdc | 1 MΩ | - |
| N2871A | 200 MHz | 10:1 | 9.5 pF | 10 MΩ | 400 V mains isolated² 300 V CAT II | 1 MΩ | 10-25 pF |
| N2872A | 350 MHz | 10:1 | 9.5 pF | 10 MΩ | 400 V mains isolated² 300 V CAT II | 1 MΩ | 10-25 pF |
| N2873A | 500 MHz | 10:1 | 9.5 pF | 10 MΩ | 400 V mains isolated ¹ ² 300 V CAT II | 1 MΩ | 10-25 pF |
| N2874A | 1.5 GHz | 10:1 | 1.8 pF | 500 Ω | 8.5 V mains isolated | 50 Ω | - |
| N2875A | 500 MHz | 20:1 | 5.6 pF | 20 MΩ | 400 V mains isolated ² 300 V CAT II | 1 MΩ | 7-20 pF |
| N2876A | 1.5 GHz | 100:1 | 2.2 pF | 5 kΩ | 21 V mains isolated | 50 Ω | - |
Note:
¹ 300 Vrms, 400 V (dc + peak ac) mains isolated; 0 V transient overvoltage with InfiniiVision 6000X, Infiniium S and 9000 Series.
² Maximum pulse rating = 1,650 V (step 0 V to 1,650 V), mains isolated, no overshoot permitted, not applicable to InfiniiVision 6000X, Infiniium S and 9000 Series.
