The 702921 is a 1 kV, 400 MHz high voltage differential probe that boasts excellent gain accuracy (±0.7%), superior common mode rejection ratio (70 dB CMRR at 1 MHz), and low overshoot.
When connected to high-definition DLM3000HD and DLM5000HD Yokogawa oscilloscopes, the probe is automatically powered, fully recognized, and is configured to prevent setup errors.
With a wide range of optional accessories to support diverse measurement needs, the 702921 is ideal for measuring high voltage, high frequency, floating signals in inverters, motors, and power supply designs that incorporate not only silicon but also wide bandgap power electronic devices such as silicon carbide (SiC) and gallium nitride (GaN).
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![]() 701978 |
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| Bandwidth | DC to 400 MHz | DC to 150 MHz | DC to 150 MHz | DC to 50 MHz | |||
| Attenuation ratio | 50:1 / 500:1 | 100:1 / 1000:1 | 50:1 / 500:1 | 100:1 / 1000:1 | 50:1 / 500:1 | 100:1 / 1000:1 | |
| DC gain accuracy | ±0.7% | ±2 to ±3% | |||||
| Differential voltage | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1400 V (DC + ACpeak) | ±1500 V (DC + ACpeak) | ±7000 V (DC + ACpeak) 5000 Vrms |
| Maximum input voltage | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1000 V (DC + ACpeak) | ±2000 V (DC + ACpeak) | ±1400 V (DC + ACpeak) or 1000 Vrms |
±1500 V (DC + ACpeak) | ±7000 V (DC + ACpeak) or 5000 Vrms |
| CMRR (typical) | 80 dB (60 Hz) 50 dB (10 MHz) 30 dB (100 MHz) 20 dB (400 MHz) |
80 dB (60 Hz) 50 dB (1 MHz) |
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| Noise (typical) | 250 mVrms | 500 mVrms | 250 mVrms | 500 mVrms | 300 mVrms | 700 mVrms | |
| Impedance (typical) | 6 MΩ | 5 pF (to ground) 12 MΩ | 2.5 pF (between +/- terminals) |
4 MΩ | 5 pF (to ground) | 4.1 MΩ | 5 pF (to ground) | 52 MΩ | 10 pF (to ground) | |||
| Measurement category | CAT II 1000 V CAT III 600 V |
CAT II 1000 V | CAT III 1000 V | CAT III 1000 V CAT O 5000 Vrms |
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| Interface | Yokogawa DLM Series | BNC | Yokogawa DLM Series | BNC | |||