Pomona Modular Passive Voltage Oscilloscope Probes Part Probe Number Ratio 6491 6493 6494 6495 6496 6497 6498 6499 6500 1:1 10:1 10:1 10:1 10:1 10:1 100:1 1:1 10:1 1:1 10:1 Maximum Input Voltage CAT II¹ 55 V 300 V 300 V 300 V 300 V 300 V 1000 V 55 V 300 V 55 V 300 V Recommended Bandwidth MHz System Probe Input (-3dB) Scope Bandwidth Risetime (ns) Resistance (MΩ) MHz (Probe) (System) 60 30 < 12 1 60 150 < 2.4 10 60 150 < 2.4 10 100 250 < 1.4 10 350 350 <1 10 350 350 <1 10 09 500 400 < 0.9 50 60 20 < 18 1 150 < 2.4 10 100 30 < 12 1 250 < 1.4 10 Probe Input Capacitance (pF) < 39.5 < 12.5 < 12.5 < 12.5 < 14.5 < 14.5 75 < 7.5 < 78 < 13 < 80 < 13 Compensation Readout Range (pF) Actuator² 15 - 40 15 - 40 10 - 35 10 - 35 10 - 35 10 - 50 15 - 40 NA 10 - 35 1 Rating: Per IEC 61010-031. Maximum voltage allowed on the low or ground connection including shell and housing must not exceed 30 V. 2 Any oscilloscope that uses the Tektronix® style range actuator Cable Length No Yes No No Yes No 4ft (1.2m) 4ft (1.2m) 4ft (1.2m) 4ft (1.2m) 4ft (1.2m) 4ft (1.2m) 6 6ft (2m) 6.6ft No 4ft (1.2m) No 4ft (1.2m)