Passive Oscilloscope Probes

General-Purpose Passive Probes

Passive oscilloscope probes are a practical choice for general-purpose measurements in electronics design, servicing and testing. Available in different attenuation ratios and bandwidths, they connect a circuit to an oscilloscope while adding some resistance and capacitance to the measurement point.

Probe Tip Capacitance and Circuit Loading

Check the probe’s tip capacitance as well as its bandwidth and attenuation. Capacitance can load the circuit, particularly at higher frequencies. You can estimate capacitive reactance using X₍C₎ = 1 ÷ (2πfC), where f is frequency in hertz and C is capacitance in farads. For example, 10 pF gives about 1.6 kΩ at 10 MHz and 160 Ω at 100 MHz. This is an estimate; the probe’s actual input impedance also depends on its design.

Check Voltage Ratings and Probe Type

Check the maximum input voltage for the selected attenuation setting. The limit may differ between 1× and 10× settings and may vary with frequency. Always follow the probe and oscilloscope specifications, including any CAT rating or frequency derating. For high-frequency or high-impedance circuits, consider an active probe, which may offer lower input capacitance. Check its specifications and oscilloscope compatibility.

← Oscilloscope Probe Loading Calculator

SKU	Brand	Attenuation	Bandwidth	Input Impedance	Input Capacitance	Compensation	Max. Voltage to Earth	Operation Temp	Cable Length	Stock	Price
Sensepeek 6013	Sensepeek	10X	100MHz	1 MΩ	13.9 pF	9 pF – 54 pF	300V RMS CAT II	-20℃ - 50℃	1.2m	5+	£53.00
Sensepeek 6014	Sensepeek	10X	200MHz	1 MΩ	13.9 pF	9 pF – 54 pF	300V RMS CAT II	-20℃ - 50℃	1.2m	5+	£61.00
Sensepeek 6023	Sensepeek	10X	350MHz	1 MΩ	12.7 pF	9 pF – 54 pF	300V RMS CAT II	-20℃ - 50℃	1.2m	4	£79.00
Sensepeek6024	Sensepeek	10X	500MHz	1 MΩ	9 pF	9 pF – 54 pF	300V RMS CAT II	-20℃ - 50℃	1.2m	5+	£96.00
PVP2150Low stock	Rigol	1X, 10X	35 MHz, 150MHz	1 MΩ, 10 MΩ	1X: 50 pF ± 20 pF, 10X: 10 pF ± 5 pF	10 pF - 25 pF	1X: 150V RMS CAT II, 10X: 300V RMS CAT II	0℃ - 50℃	1.2m	2	£33.00
PVP2350	Rigol	1X, 10X	35 MHz, 350MHz	1 MΩ, 10 MΩ	1X: 50 pF ± 20 pF, 10X: 10 pF ± 5 pF	10 pF - 25 pF	1X: 150V RMS CAT II, 10X: 300V RMS CAT II	0℃ - 50℃	1.2m	5+	£43.00
RP3500ALow stock	Rigol	10X	500MHz	10 MΩ	13pF ± 3pF	6 pF - 24 pF	300V RMS CAT II	0℃ - 50℃	1.4m	1	£160.00
RP5600A	Rigol	10X	600MHz	10 MΩ	12pF ± 1pF	6 pF - 26 pF	300V RMS CAT II	0℃ - 50℃	1.4m	On Backorder	£300.00
RP6150A	Rigol	10X	1.5GHz	500 Ω ± 10 Ω	1.6pF	N/A	7V CAT I	0℃ - 50℃	1.45m	On Backorder	£266.00
RT-ZP05M	Rohde & Schwarz	10X	500MHz	10 MΩ	10 pF	N/A	300V RMS CAT II	0℃ - 40℃	1.3m	On Backorder	Call Us
RT-ZP10	Rohde & Schwarz	10X	500 MHz	10 MΩ	9.5 pF	5 pF - 20 pF	300V RMS CAT II	0℃ - 50℃	1.3m	On Backorder	Call Us
RT-ZP11	Rohde & Schwarz	10X	700MHz	10 MΩ	9.5 pF	5 pF - 20 pF	300V RMS CAT II	0℃ - 50℃	1.3m	On Backorder	Call Us
RT-ZP1X	Rohde & Schwarz	1X	38MHz	1 MΩ	39 pF	N/A	55V RMS CAT II	0℃ - 50℃	1.3m	On Backorder	Call Us
RT-ZPMMCX	Rohde & Schwarz	25X	700MHz	14.9 MΩ	4 pF	7 pF – 20 pF	30V RMS	-40℃ - 60℃	1.2m	On Backorder	Call Us
Sensepeek7008	Sensepeek	10X	1.5GHz	500 Ω	0.35 pF	N/A	30V RMS	0℃ - 50℃	1.2m	5+	£149.00
Sensepeek7009	Sensepeek	10X	1.5GHz	500 Ω	0.35 pF	N/A	30V RMS	0℃ - 50℃	1.2m	4	£149.00
Sensepeek7010	Sensepeek	10X	3GHz	500 Ω	0.35 pF	N/A	30V RMS	0℃ - 50℃	1.2m	On Backorder	£220.00
Sensepeek7011	Sensepeek	10X	3GHz	500 Ω	0.35 pF	N/A	30V RMS	0℃ - 50℃	1.2m	3	£220.00
Sensepeek7012	Sensepeek	10X	6GHz	333 Ω	0.35 pF	N/A	30V RMS	0℃ - 50℃	1.2m	3	£300.00
Sensepeek7013	Sensepeek	10X	6GHz	333 Ω	0.35 pF	N/A	30V RMS	0℃ - 50℃	1.2m	5	£300.00
PB470	Siglent	1X, 10X	70MHz	1 MΩ, 10 MΩ	1X: 85 pF-120 pF, 10X: 18.5 pF-22.5 pF	10 pF - 35 pF	1X: 150V RMS CAT II, 10X: 300V RMS CAT II	-10℃ - 55℃	1.3m	4	£14.00
PB925	Siglent	10X	250MHz	10 MΩ	16 pF	10 pF - 35 pF	600 V CAT III, 1000 V CAT II	0℃ - 50℃	1.2m	On Backorder	£88.00
pp215Low stock	Siglent	1X, 10X	100MHz	1 MΩ, 10 MΩ	1X: 85 pF-120 pF, 10X: 18.5 pF-22.5 pF	10 pF - 35 pF	1X: 150V RMS CAT II, 10X: 300V RMS CAT II	-10℃ - 55℃	1.3m	2	£26.00
PP510Low stock	Siglent	1X, 10X	100MHz	1 MΩ, 10 MΩ	1X: 85 pF-120 pF, 10X: 18.5 pF-22.5 pF	10 pF - 35 pF	1X: 150V RMS CAT II, 10X: 300V RMS CAT II	-10℃ - 55℃	1.3m	1	£18.00
SP3050A	Siglent	10X	500MHz	10 MΩ	11 pF	8 pF - 20 pF	400V RMS CAT II	0℃ - 50℃	1.2m	On Backorder	£94.00
SP3150A	Siglent	10X	500MHz	10 MΩ	10 pF	10 pF - 20 pF	400V RMS CAT II	0℃ - 50℃	1.3m	On Backorder	£94.00
SP5050A	Siglent	10X	500MHz	10 MΩ	12 pF	12 pF~22 pF	300V RMS CAT II	0℃ - 50℃	1.3m	On Backorder	£82.00
SP6150A	Siglent	10X	1.5 GHz	500 Ω ± 10 Ω	1.8 pF	N/A	8.5 V	0℃ - 50℃	1.3m	On Backorder	£199.00