Source Measure Units

A Source Measure Unit (SMU) is a high-performance instrument that integrates the functions of a precision power source, a digital multimeter, and an electronic load within a single unit. SMUs are specifically developed for tasks where the simultaneous, high-accuracy sourcing and measurement of voltage and current are essential.

In contrast to standard power supplies that only deliver energy, an SMU provides tight control and instant feedback. This enables engineers to analyse and test components with superior precision, making them vital tools in semiconductor fabrication, battery technology research, materials science, and electronic design verification.

Why Choose a Source Measure Unit?

  • Four-Quadrant Capability: Seamlessly source and absorb power to evaluate both active and passive devices in one test cycle.
  • Precision Accuracy: Output and monitor voltage and current with superior resolution, reaching down to microamp or picoamp levels.
  • All-in-One Functionality: Combines a DC power supply, 6.5-digit DMM, and electronic load into a single, high-efficiency instrument.
  • Dynamic Response: Features rapid feedback loops and quick settling times, perfect for transient characterisation and high-speed testing.

Core Applications

  • Semiconductor Analysis: Generating I-V curves for diodes, FETs, and integrated circuits with laboratory-grade precision.
  • Nanotech & Materials Science: Evaluating low-resistance samples and nanotubes where detecting ultra-low currents is mandatory.
  • Renewable Energy Research: Assessing the performance of high-intensity LEDs, solar cells, and micro-scale energy harvesters.
  • Precision Sensor Testing: Supplying stable bias voltages while simultaneously recording low-level output signals from sensitive transducers.
CategoryImageChannelsDC VoltageDC CurrentPulsed CurrentCurrent Res.Current RangeVoltage Res.Voltage RangeTrigger Int.Price From
Siglent SMM3000X Series Source Measure UnitsSMM3312X TelonicUK2, 1±210 V±3.03 A±10.5 A10 fA10 nA - 3 A100 nV200 mV - 200 V10 μs£4,069.00