ZTH 749 - Wärmewiderstandsmessplatz

ZTH 749 - Wärmewiderstandsmessplatz

Features

  • Laststrom 3 x 10 bis 400 A bei einer Spannung von bis zu 15 V, verwendbar als 3 Einzelquellen oder eine Summenquelle
  • Geeignet für SCR, Dioden, IGBT- und MOSFET Einfach- und Mehrfachmodule
  • Aufnahme der Abkühlkurven von bis zu 6 Bauteilen, inklusive Foster Approximation, zur Berechnung von ZTH- Ersatzschaltbildern
  • Bietet ZTH- Kurzzeitmessungen (ab 100 ms) bis zu Langzeitmessungen > 10 Sekunden
  • Mit diversen Temperaturmess­eingängen, zur automatischen Ermittlung von TK- Kennlinien
  • Integrierter PC für Systemkontrolle, Datenspeicherung und graphische Analysen
  • Steuerung eines externen Heiz-/ Kühlaggregats

Data Sheet

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Description

The test system ZTH 749 is designed to measure the thermal resistance within power semiconductors devices.

The measurement of the temperature increase in a pn- junction is enabled by the relatively defined temperature behaviour of the forward voltage at small current densities.

This temperature coefficient is typically in a range of -2 mV/K and the variance is small for sample DUTs taken from the same production run.

By measuring the junction temperature curve after load pulse, the RTH and Z**TH **parts of the power package can be calculated.

The test system is controlled by an industrial PC running a Windows based user friendly software package that allows fast operator understanding.

Test configurations are programmed at the PC which provides real-time displays via monitor.

The pre-selected test parameters and subsequent test results are automatically saved to the PC for further review and analysis. The stored data can also be exported into an csv-file.

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Data Sheet PDF