TA042 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 powered by either four AA batteries, included, or the TA531 USB to DC Jack power lead, also included as standard. The TA531 is intended for use with generic USB wall chargers (not included).

1400V active differential scope probe
In stock. Available for despatch.
Title Language Issue Size Updated All products All languages All documents Status
Choosing the right Pico Technology active differential probe English 4 1 MB Nov 10 2020 english open
TA041 TA042 TA043 TA044 TA057 Differential Probes User’s Guide English 4 416 KB Dec 01 2023 english open
TA042 and TA043 EU Declaration of Conformity English 1 748 KB Jan 03 2024 english open
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 ±1.4 V into 1 MΩ
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 4 AA cells or 5 V USB to DC Power cable (TA531)
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