Vertical Manual Actuator (VMA)

The Vertical Manual Actuator (VMA) features improved thermal, electrical, and mechanical performance that will lower your cost of test.

If you would like a copy of the Maintenance & Inspection Guide for this product, please contact You also may contact your regional sales representative or distributor as well.


Single-Latch Clamshell Design

  • Provides simple latching and actuation
  • Latches before engaging package
  • Turning knob actuates device

Vertical Actuation of Contacts

  • More consistent package contact
  • Improved coplanarity
  • Reduced X-Y movement on package

Versatile Leadbacker

  • Easy to replace when changing between various SO and QFP device packages
  • Fixed hard-stops ensure proper actuation

Better Airflow to Package

  • Center holes in leadbacker and knob ensure better temperature control





10,000+ insertions


-55°C to 155°C