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IWATSU ON PROBE SS-350 dynamic resistor IWATSU Catalog
IWATSU ON PROBE SS-350 dynamic resistor (Rds ON voltage) test solution
  • IWATSU ON PROBE SS-350 dynamic resistor (Rds ON voltage) test solution

IWATSU ON PROBE SS-350 dynamic resistor (Rds ON voltage) test solution

Brand: IWATSU

Origin: Japan

Isolated Voltage Probe. Detailed specifications are available in the product datasheet.
Overview

current collapse remains one of the biggest concerns for many engineers about GaN power transistors, making evaluation very challenging due to instrument limitations.

engineers can conveniently create a repeatable and reliable dual-pulse evaluation system using the IWATSU SS-350 probe

,

can reliably measure the dynamic on-voltage drop (also known as dynamic Rds on) of wide bandgap devices. This solution is currently the optimal global solution for evaluating dynamic on-resistance.


Reliably measures the dynamic conduction voltage drop (also known as dynamic Rds on) of wide bandgap devices. The SS-350 is a professional probe that can

measure switch-to-switch voltage (ON voltage) when switching devices like MOSFETs are turned on By limiting (clamping) the high voltage generated when the switching device turns off, it can measure low conduction voltage more accurately.


Main features:

  • Maximum input voltage 2,000Vpeak

  • clamping voltage 1.5V/2.5V/5.5V

  • IWATSU The DS-8000 series can be used to set clamping voltage, offset voltage, and

power supply *This product is only compatible with IWATSU DS-8000 series oscilloscopes



Best application:

  • Temperature Dependence Assessment

  • of On-Resistance of SiC Devices Assessment

  • of the Increasing On-Resistance of GaN Device Current Failures Detecting the Impact

  • of Abnormal Temperature Rise in Conduction Voltage Measuring the Increase in On-Voltage Caused by Overcurrent State

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Specifications

Specifications: Basic performance


Signal input section
Connector Φ 4 mm banana plug
Input range -20 V peak to +2,000 V peak
Cable length 30 cm
Clamping voltage +1.5 V / +2.5 V / +5.5 V
Signal output section
Connector BNC
Output impedance 50 Ω ±1%
Cable length 2 m
Attenuation ratio 5:1 (50 Ω output termination)


Output voltage ・Clamp voltage ±1.5 V selection: signal amplitude 0 V to +1.0 V (output voltage 0 V to +0.2 V)
・Clamp voltage ±2.5 V selection: signal amplitude 0 V to +2.0 V (output voltage 0 V to +0.4 V)
・Clamp voltage ±5.5 V selection: signal amplitude 0 V to +5.0 V (output voltage 0 V to +1 V)
Offset adjustment Adjustable to ±0.4 V or higher
Probe power connector
Connector Circular 6-pin
Cable length 2 m
Power supply Provided by the probe power port of the DS-8000 series oscilloscope
Probe control Clamp voltage and offset voltage can be set from the DS-8000 series oscilloscope

* The DS-8000 series can be used when the following conditions are met.
- Software version 7.1 or later
- For 4-channel computers, the FE1 version must be 1 or later; for 8-channel computers, the FE1 and FE2 versions must be 1 or later.

Dimensions and weight


Size 60 mm (width) × 28 mm (height) × 115 mm (depth) mm (excluding protruding parts)
Mass Approx. 350 g

Environmental characteristics


Guaranteed performance temperature 10°C ~ 35°C
Operating temperature 0°C ~ 40°C

SS-350 Operating Instructions


Application examples


Example of on-state voltage characteristics at the start of GaN device switching

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Expand IWATSU ON PROBE SS-350 dynamic resistor

* Specifications are subject to change without notice.