Since 1991 we have been supplying the world with test and measurement equipment. At Pico we realize that your choice of test accessories can be almost as important as your choice of test equipment. Here you can purchase a variety of test and measurement accessories quickly and securely online.

100 MHz 1400 V differential oscilloscope probe 100:1/1000:1

The TA042 is an active differential probe suitable for high common-mode voltage measurement applications up to ±1400 V  (DC + peak AC). It is capable of acquiring higher speed signals of up to 100 MHz.

This differential probe extends the functionality of standard single-ended input oscilloscopes to allow a safe and accurate method of making high-voltage differential measurements. Applications include making safe measurements in power circuit applications and acquisition of low speed balanced differential signals found in serial communications buses.

The TA042 is an active probe and therefore requires power to function. Four AA batteries are included as standard. Not included as standard but available as optional extras, the PS008 power supply and TA059 Probus power adapter are also available to purchase.

1400V active differential scope probe
Title Language Issue Size Updated All products All languages All documents Status
TA042 100 MHz 1400 V Differential Probe User’s Guide English 1 264 KB Jun 19 2014 English open
Choosing the right Pico Technology active differential probe English 1 700 KB May 17 2016 English open

Accessories for the 100 MHz 1400 V differential oscilloscope probe 100:1/1000:1

Product Price Quantity
Probus power adaptor for active differential probes
9 V AC power adaptor
TA042 active differential probe specifications
Bandwidth DC to 100 MHz (–3 dB) 
Attenuation 100:1/1000:1
Rise Time 3.5 ns
Accuracy ±2%
Input impedance 4 MΩ ∥ 7 pF each side to ground
Input voltage
Max differential voltage input (100:1)
Max differential voltage input (1000:1)
± 140 V (DC + peak AC) or 140 V RMS
±1400 V (DC + peak AC) or 1000 V RMS
Common mode range ±1400 V (DC + peak AC) or 1000 V RMS
(100:1 and 1000:1) 
Absolute max. voltage
(differential or common mode)
±1400 V (DC + peak AC) or 1000 V RMS CAT III (1/100 & 1/1000) 
Output voltage
Swing (into 50 kΩ load) ±7V
Offset (typical) <±5 mV
Noise (typical)  0.9 mV RMS
Source impedance (typical)  50 Ω
CMRR (typical) 80 dB @ 60 Hz; 50 dB @ 1 MHz
Ambient operating temperature
–10 to 40 °C
Ambient storage Temperature  –30 to 70 °C
Power requirements 
Standard 4xAA cells or 6 V DC / 200 mA mains adaptor
or regulated 9 V DC / 120 mA mains adaptor
Option Power leads 
Length of input leads 30 cm
Length of BNC lead 90 cm
Weight 500 g
Dimension (LxWxH) 207 mm x 83 mm x 38 mm