Siglent SMM3311X source measure unit
Details
Please note: the images show the SMM3312X, which is visually identical to the SMM3311X, only with 2 channels rather than 1.
The Siglent SMM3311X is a single-channel precision source measure unit (SMU) that simultaneously outputs and measures voltage and current. It combines a current source, voltage source, voltmeter, and ammeter in one instrument, making it well-suited for semiconductor characterisation, component testing, and materials research.
With ±210V/3.03A DC output capability, 6½-digit resolution (2,100,000 count), and 10fA/100nV minimum programming and measurement resolution, the SMM3311X delivers performance comparable to instruments at significantly higher price points. Pulse mode supports ±10.5A with a minimum pulse width of 50µs, enabling accurate characterisation of power semiconductors such as GaN and SiC devices. The SMU also supports remote control, making it accessible both through a web browser and the display.
Model overview
| Model | SMM3311X | SMM3312X |
|---|---|---|
| Channels | 1 | 2 |
| Price |
Specifications
| Display resolution | 2,100,000 counts, 6½ digits |
| Max. voltage | 210 V |
| Max. current | 3.03 A |
| Max. power | 31.8 W |
| Voltage accuracy | 0.015% + 225 µV |
| Current accuracy | 0.1% + 100 pA |
| Supports pulse mode | Yes |
| Voltage resolution | 100 nV |
| Current resolution | 10 fA |
| Protection | OPP, OCP, OVP, OTP |
| Interfaces | USB Host, USB Device, LAN, Digital I/O |
| Display | 5" TFT touchscreen (800 × 480) |
| Dimensions | 490 x 261 x 103 mm |
| Weight | 4.8 kg |
Accessories
The Siglent SMM3311X comes by default with:
- 1x Power cord
- 1x USB cable
- 1x Output test cord
- 1x Calibration certificate
Pros and cons
- Great price-performance ratio
- High resolution
- Low output power
Downloads
| Siglent SSM3000X user manual |  (5.14 MB) | Download |
| Siglent SSM3000X datasheet | (1.57 MB) | Download |
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