Multitest Kelvin contactor suits high-power test

Aimed at high-power IC test applications up to 500 A, the ecoAmp Kelvin contactor from Multitest provides maximum loop inductance of 4.5 nH for lead pitches down to 0.5 mm and can be used from −60°C to +175°C. The contactor accommodates QFP, SO, TO, and DPAK devices and power modules, such as MOSFETs and IGBTs, found in automotive, industrial, energy, and motor-control applications.

The ecoAmp is designed specifically to meet the requirements of high-voltage and high-current testing. In order to achieve equal current symmetry over I/Os within the contactor, the contacting resistance must be held low and stable. Resistance stability is influenced by the contact spring itself and the condition of the device pin.

With a cantilever spring and hard gold coating, ecoAmp provides typical contact resistance of 30 mΩ. Other electrical specifications include a maximum peak current of 160 A at 1% duty cycle and maximum continuous current of 8 A. In addition, ecoAmp is optimized to withstand high thermal stress during testing and has a lifespan of 1 million insertions.

Base price: approximately $5206 (€3980).

Multitest product web page