Vektrex PSMU-PRF-05-10us Precision Source Measure Unit

Overview

The Vektrex PSMU-PRF-05-10us is a precision 500mA source measure unit designed for pulsed current delivery with nanosecond to microsecond rise and fall times. The unit is optimized for accurate LED, VCSEL, and laser diode photometric and electrical measurements. A precision hardware-controlled timing system with synchronized source and measure capabilities enables precise measurement capture aligned with pulsed light measurements.

Key Features

• 500mA output current with 200ns to 3 µs rise and fall times
• Integrated low-noise digitizer with voltage ranges to 400V
• 1 µs pulse width accuracy with configurable pulse durations
• Multiple operational modes: DC, Continuous Pulse, Single Pulse, Sweep, Burst, and Repetitive Burst
• Programmable load tuning for impedance and cable compensation
• Optional BIAS current module for junction temperature and thermal resistance measurements
• Gentle ramp-up with SpikeSafe load protection and real-time monitoring

Applications

• LED characterization and testing
• VCSEL photometric measurements
• Laser diode electrical and optical testing
• Component thermal characterization