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High Voltage Differential Probe
THDP0400 Model Datasheet
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- High Voltage Differential Probes
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Overview
The Tektronix THDP0400 high voltage differential probe enables safe measurement of floating differential voltages up to ±2000 V. It is well suited for testing IGBT, SiC, and GaN power devices, as well as applications such as motor drives and power converters.
The probe provides up to 400 MHz bandwidth with selectable attenuation settings, enabling accurate measurement of fast-switching signals in medium- to high-voltage differential applications.
The THDP0400 model includes a range of standard accessories to simplify connection to the device under test (DUT). Like all probes in the THDP series, it features the TekVPI® interface, allowing seamless connection to 4, 5, and 6 Series B MSO oscilloscopes for both manual and automated measurements.
Key features
400 MHz bandwidth for high-speed signal measurements
Differential voltage range up to ±2 kV
Common-mode voltage up to ±2 kV
Selectable attenuation: 50X, 100X, 250X, 500X
DC gain accuracy: ±1%
Switchable attenuation settings for measurement flexibility
Safety certified as per UL 61010-031 and IEC 61010-031 standards
CAT Rating: 1000 V CAT III
Key applications
Floating differential measurements
Power Semi Si, SiC, GaN Validation and Characterization
Switching power supply design
Industrial and automotive motor drive designs
Power converter design and service
Specifications
All specifications are typical and apply to all models unless noted otherwise.
Probe overview
Characteristic | Description | |||
|---|---|---|---|---|
Bandwidth | 400 MHz | |||
Probe range and attenuation | 2 kV: 500X | 1 kV: 250X | 400 V: 100X | 200 V: 50X |
Rise time | 0.9 ns | 0.9 ns | 1 ns | 1 ns |
Noise (AC RMS) | 265 mV | 265 mV | 225 mV | 225 mV |
Noise (AC RMS at 20 MHz) | 55 mV | 55 mV | 45 mV | 45 mV |
DC balance (input referred) | ±2 V | ±1 V | ±1 V | ±500 mV |
Maximum measurable differential Voltage (DC + peak AC) | ±2000 V | ±1000 V | ±400 V | ±200 V |
Maximum Common mode Voltage to Earth | ±2000 Vpk; 1400 V RMS | |||
Max Non-Destruct differential input Voltage to Earth | 6000 Vpk (as defined in IEC 61010-031); 2000 V RMS | |||
Derates with frequency. Refer to Input Voltage derating curve. | ||||
DC gain accuracy | ±1% | |||
Common mode voltage | ±2000 Vpk | |||
CMRR | DC: 80 dB | |||
100 kHz: 70 dB | ||||
1 MHz: 70 dB | ||||
10 MHz: 50 dB | ||||
50 MHz: 45 dB | ||||
100 MHz: 35 dB | ||||
400 MHz: 28 dB | ||||
Input impedance | Each input to ground: 5 MΩ || 5 pF | |||
Differential input impedance: 10 MΩ || 2.5 pF | ||||
CAT rating | 1000V CAT III | |||
Propagation delay | 13 ns ±0.5 ns | |||
Probe cable length | 2 meters | |||
Supported oscilloscopes | 4 Series B, 5 Series B, and 6 Series B MSO instruments | |||
Environmental requirements
Characteristic | Operating | Non-operating |
|---|---|---|
Temperature | 0° C TO +50° C | -40°C TO +71°C |
Humidity | 80% relative humidity (% RH) at up to +31°C, decreasing linearly to 40% at +50°C. Units to be powered up at least 30 minutes prior to testing. | 5% to 95% RH (Relative Humidity) at up to +40°C, noncondensing. |
Altitude | Up to 3,000 meters | Up to 15,240 meters |
Ordering information
Select the appropriate instrument and options for your measurement needs.
Model overview
Model | Description |
|---|---|
THDP0400 | 400 MHz high voltage differential probe |
THDP0400KIT | Standard accessory kit (includes items in standard accessory list) |
Standard accessories
The following table lists the accessories that are shipped with the probe.
Accessory | Description | Part number |
|---|---|---|
| Probe tip adapters; 4mm to 0.8mm, black (qty. 2) | 013-0436-XX |
| Spring tips; fine (qty. 4) | 214-5586-XX |
| Hook clamps; red and black (qty. 2) | 344-0703-XX |
| Rotating grip jaw clamps (qty. 2) | 344-0704-XX |
| 2-footed holder; black (qty. 2) | 352-1192-XX |
| Safety alligator clips; small (qty. 2) | 344-0705-XX |
Recommended accessories
The following table lists optional accessories.
Accessory | Description | Part number |
|---|---|---|
| Transit hard case | 016-2177-XX |
| EMI noise suppression kit | 276-0914-XX |
| 3D positioner with steel base, 200 mm span width and universal probe holder | 352-1193-XX |
| 4 mm Coupler f-f (red), 30V AC / 60V DC | 133-0698-XX |
| BNC-male to dual 4 mm sockets, fully insulated | 133-0699-XX |
