Tj Measurement Toolkit

The Tj Measurement Tookit is an optional add-on to the SpikeSafe Pulsed Source Measure Unit. It simplifies and automates junction temperature measurement for LED or laser devices using JEDEC’s Electrical Test Method (ETM).

Make accurate junction temperature measurements of LEDs, Lasers or VCELs

  • Measure devices in lab setting
  • Measure devices in-situ for example temperature chambers
  • Supports single devices
  • Support arrays of devices (ensembles)

Kit requires optional BIAS source is purchased with the Vektrex SMU or SMU High Current.

Supported Current Source: SpikeSafe Pulsed Source Measure Unit

Junction Temperature Cross Section
Junction Temperature Cross Section

The Tj Measurement Toolkit Includes:

BIAS SourceIntegrated secondary programmable bias current source control.
Control Panel Software UpgradeHeating current parameters
Measure current parameters
Vf capture graphs
Auto conversion of time to square-root-of-time
Projection of Vf cooling trends to y-axis intercept
ExcelIncludes template that calculates TJ using the y-axis intercept and Vf characterization data generated by Vektrex-developed control panel software application.
InstructionsDetailed instructions to quickly measure junction temperature of LEDs, Lasers, and Luminaires using Vektrex SMU or SMU High Current and JEDEC Electrical Test Method
Expert SupportExpert support is included to get you up and making accurate measurements quickly

Read our LEDS Magazine article to learn more about simplifying your junction temperature Measurement Techniques. 

For more information about junction temperature techniques: junction temperature measurement