F-55A Profile:
F-55A is an EMI monitoring current probe manufactured by FCC (Fischer Custom Communications, Inc.) and authorized to be sold by EUTTEST Shenzhen. The F-55A is used for laboratory and field testing. It is capable of measuring pulse transients with a rise time of 800 picoseconds and a pulse width of 3 microseconds. The probe has a small outer diameter of about 71 mm and an inner diameter of 32 mm. its transmission impedance is 0.1 Ω from 100 kHz to 500 MHz. it can operate up to 350 amps DC-400 Hz, 10 amps continuous wave and 100 amps peak pulse.
F-55A Main technical parameters:
| Current Probe Model | F-55A |
| manufacturer | FCC |
| agent | EUTTEST |
| Available frequency range | 1kHz-500MHz |
| Internal Ring Diameter. | 32mm |
| Outer ring diameter. | 71mm |
| Height. | 19 mm |
| Typical ZtΩ. Calibrate the probe with a 50Ω+j0Ω load impedance. | 0.1 |
| Typical dBΩ. | -20 |
| Connectors. | Type-N, N Female, 50 Ohm |
| Insertion impedance. | <1 ohm |
| Additional Shunt Capacitor Size: -0.5mm | <1.5 pf |
| 额定功率电流值: | 350 A (DC - 400 Hz); |
| Peak pulse current | 100A; Depends on pulse width and pulse repetition rate. |
| Shielding effect of magnetic fields. | 10 kHz - 400 MHz: >42 dB isolaton |
| Shielding effect of electric fields: | 10 kHz - 400 MHz: > 45 dB isolation |
| Targeted impacts. | 10 kHz - 30 MHz: < 1.0 dB, 30 MHz - 400 MHz: < 2.5 dB |
| Matching calibration test fixtures. | fcc-mpcf-3-32/71/19 |
Transmission Impedance Curve of F-55A