SPD3303C Series Programmable DC Power Supplies

  • 3 independent high precision outputs: two 32 V /3.2 A, one 2.5 V / 3.3 V / & 5 V / 3.2 A, total 220 W power
  • 4 digit voltage and 3 digit current display, min resolution: 10 mV, 10 mA
  • Three output modes: independent, series and parallel
  • 100/120/220/230 V compatible design, to meet the needs of various power grids

Product Overview

The SIGLENT SPD3303C Programmable DC Power Supply is a LED display screen and programmable linear DC power supply that is both lightweight and feature-packed. It has three independent outputs: two sets of adjustable voltage / current and a fixed set of selectable voltages; 2.5, 3.3, and 5 V. In addition, the SPD3303C DC power supply has outputs that are short-circuit and overload protected. Total power is 220 W. It has three available operation modes; independent, series and parallel modes. The SPD3300C has a high performance-to-price ratio and can be used in various types of production, education and research environments.

Channel Output Display Resolution Setting Accuracy Readback Accuracy Price
SPD3303C CH1: Voltage 0 to 32 V
Current 0 to 3.2 A
CH2: Voltage 0 to 32 V
Current 0 to 3.2 A
CH3: Voltage 2.5/3.3/5.0 V
Current 3.2 A
LED display:
4 digit voltage display,
3 digit current display
10 mV,
10 mA
± (0.5% of reading + 3 digits)
± (0.5% of reading + 3 digits)
± (0.5% of reading + 3 digits)
± (0.5% of reading + 3 digits)
$299 Buy Now

Key Features

  • Smart temperature controlled fan, effectively reduces the fan noise
  • Save/Recall 5 group system set-ups, supports data storage expansion
  • Connected to PC via USB Device, support SCPI command, to meet the control and communication needs

“Based upon my years as a calibration laboratory manager I can say that this is every bit as good as lab supplies costing twice as much or more. A great addition to my home work bench.”

Need more information? Call us now 877-515-5551

Product Characteristics

Design Features View more

Design Features

The SPD3303C power supply exhibits high resolution, 10 mV/10 mA, providing the user with excellent settability and read back accuracy. In addition, it maintains its ability to change output voltage or current in small increments while fully meeting the power requirements of the load.

Intelligent fan for temperature control, effectively reduces noise.

Series/parallel/independent output modes View more

Series/parallel/independent output modes

Series/parallel/independent output modes

Series-parallel function combines two power supplies into one and makes it very convenient for many applications. The SPD3303C has three independent outputs which can be controlled separately and also be turned on or off separately or at the same time.

USB Remote Interface View more

Series/parallel/independent output modes

USB Remote Interface

USB Device. Can be controlled by remote PC. Comes with EasyPower software.

Supports SCPI commands.

Save/Recall Interface View more

Series/parallel/independent output modes

Save/Recall Interface

The SPD3000C programmable linear DC power supply provides five groups of local storage system parameters and has support for external memory expansion. With this feature the local or external memory can be stored, recalled ,or deleted, making it easy to return to your desired settings.

Standard Accessories

USB Cable

USB Cable

Quick Start Guide-SPD3303C

Support and Resources

Application Notes

Power Supply Design: Load Step Response with a SIGLENT DC Electronic Load

Download PDF Building a power supply that can handle various loads without oscillating can be a challenge. Computational models and computer simulations can help get your design headed in the right direction, but physical testing is essential to proving the performance of your design. One method of quickly determining stability is to use a load … Continued

Programming Example: Identification String (*IDN?) return with LabVIEW 2018

Download PDF This LabVIEW VI (version 2018) provides a simple platform to begin creating LabVIEW programs. You can download the VI here: VISA_IDN.ZIP In this example, the user can: Select the connected instruments from the VISA Resource List drop down menu: NOTE: USB devices will automatically appear. For LAN connections, you will need to add … Continued

Programming Example: List connected VISA compatible resources using PyVISA

Download PDF PyVISA is a software library that enables Python applications to communicate with resources (typically instruments) connected to a controlling computer using different buses, including: GPIB, RS-232, LAN, and USB. This example scans and lists the available resources. It requires PyVISA to be installed (see the PyVISA documentation for more information) *** ***** Here … Continued