AC measurement of trr and tON, tOFF

AC measurement of trr and tON, tOFF

TA37 is designed to be used together with either UNIMET 1037 or UNIMET 2020. TA37.TIM extension allows to measure AC parameters such as trr, tON and tOFF. The measurement methods of trr (reverse recovery time) comply with MIL-STD-750, method 4031.4 condition A and condition B. Measurement method for tON and tOFF is according to MIL-STD-750, method 3472-2.

Download the manual here

UNIMET 1037 allows fast and simple drag & drop test application development. Detachable TA37 can be used as well with UNIMET 2020. 


  • Small footprint, easy to move
  • Fully automated measurement (cursors are automatically set)
  • Connection to any type of standard handler via TCP/IP, IOs or RS232
  • Lightweight design
  • PicoScope 6000E series for capturing the waveforms


  • Bipolar transistors
  • Field Effect Transistors
  • IGBTs
  • Diodes

Tested parametres


  • Reverse recovery times (trr) Condition A (method 4031.4 MIL-STD-750)
  • Reverse recovery times (trr) Condition B (method 4031.4 MIL-STD-750)


  • tON
  • tOFF
  • trise
  • tfall
  • tdelay



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