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3-Digit DC Test Power Supply NICE-
POWER SPS-E305 30V 5A 150W for
Electronic Component Testing
NICE-POWER SPS-E305 is a compact 3-Digit DC Test Power Supply developed for bench-level Electronic Component Testing, component evaluation, and small electronic circuit verification. With a 0-30V adjustable DC output, up to 5A adjustable current, and 150W rated power, it allows users to establish different electrical conditions for components and small test circuits. The Encoder Adjustment provides controlled voltage and current adjustment, while the 3-digit display provides a direct numerical reference during testing.
For electronics engineers, technicians, educators, and development users, the SPS-E305 can serve as a practical adjustable DC source when individual components or small circuit sections need to be evaluated separately from a complete system. Its compact mini design also makes it suitable for workbenches where multiple instruments or component test setups are used together.
Key Features
Adjustable 0-30V DC Test Output
The SPS-E305 provides an adjustable output from 0 to 30V, giving users flexibility when establishing DC test conditions for electronic components. Different voltage levels can be selected according to the requirements of the component or circuit being evaluated, making the power supply suitable for a variety of low-voltage Electronic Component Testing tasks.
0-5A Adjustable Current Capability
The output current can be adjusted from 0 to 5A. This allows users to establish different current conditions when evaluating electronic components and small circuits. The adjustable current setting can be useful when comparing component behavior under different operating conditions within the rated limits of the device under test.
150W Rated DC Test Power
With a rated output power of 150W, the SPS-E305 provides practical capacity for individual component testing as well as small electronic assemblies. The available output range allows users to select appropriate voltage and current combinations for test procedures while keeping the connected device within its specified operating conditions.
3-Digit Display for Test Parameter Monitoring
The integrated 3-digit display provides a convenient numerical reference while setting and checking the power supply output. During Electronic Component Testing, users can observe the selected voltage and current settings without relying only on the position of the adjustment control.
Encoder Adjustment for Repeated Testing
The Encoder Adjustment design is particularly useful for test work that requires frequent changes to voltage or current. Instead of relying on a fixed output value, users can adjust the test conditions as they move between different components, samples, or stages of an evaluation procedure.
10mV Voltage Setting Resolution
The voltage setting resolution is 10mV, allowing users to make relatively fine changes to the DC output when testing electronic components. This can be useful when a test requires comparison between nearby voltage levels or when gradually changing the supply condition during component evaluation.
1mA Current Setting Resolution
The 1mA current setting resolution provides fine control of the current setting. For Electronic Component Testing, this allows users to make smaller changes when establishing different current conditions for a device or circuit under evaluation.
Constant Voltage and Constant Current Operation
The SPS-E305 supports constant voltage and constant current operation for controlled DC power delivery. This gives users a practical operating mode for test procedures where the required test condition is based primarily on a controlled voltage or current level.
Low-Ripple Output for Component Evaluation
The SPS-E305 specifies voltage ripple of ≤60 mVp-p / ≤10 mVrms and current ripple of ≤10 mArms. The specified ripple performance provides a controlled DC source for bench-level component and circuit evaluation, particularly when users need a consistent supply condition while comparing test samples.
Compact Mini Form Factor
The compact SPS-E305 is designed for space-conscious electronics workbenches. Its approximately 18.5 × 10 × 7.8 cm size allows it to be placed near component fixtures, test boards, meters, oscilloscopes, and other laboratory equipment without requiring a large dedicated bench area.
Applications
Individual Electronic Component Evaluation
The SPS-E305 can provide adjustable DC power when evaluating individual electronic components under selected voltage and current conditions. Users can establish a test point, observe component behavior, and then change the supply setting for additional measurements.
Component Parameter Comparison
When multiple components of the same type need to be compared, the adjustable DC output allows users to establish consistent test conditions across different samples. This can support basic comparative evaluation during development, incoming inspection, or troubleshooting.
Diode and LED Component Testing
Suitable diode and LED components can be evaluated using controlled DC voltage and current conditions within their specified operating range. The adjustable output allows users to establish different test conditions when observing component response.
Transistor Testing
For appropriate low-voltage transistor testing setups, the SPS-E305 can provide an adjustable DC source for the surrounding test circuit. Voltage and current settings can be changed as the user evaluates the component under different operating conditions.
Passive Component Circuit Testing
The SPS-E305 can supply DC power to suitable test circuits containing resistors, capacitors, and other passive components. This makes it useful when the objective is to evaluate component behavior as part of a small circuit rather than as an isolated device.
Component Selection and Screening
The adjustable output can be used during basic component screening procedures where different samples need to be evaluated under defined DC conditions. Users can maintain a similar test setup while changing components for comparison.
Prototype Component Verification
During the development of electronic prototypes, individual components or circuit sections often need to be checked before the complete system is assembled. The SPS-E305 provides an adjustable DC source for these early-stage verification tasks.
Electronic Repair and Troubleshooting
For electronics repair work, the SPS-E305 can provide an adjustable DC source for checking individual components and small circuit sections. Its compact size makes it practical for service benches where space and accessibility are important.
Repeated Component Testing
Electronic development and production-related evaluation may require the same test procedure to be repeated across multiple components. The Encoder Adjustment and adjustable voltage and current settings make it possible to establish and modify test conditions efficiently during repeated bench procedures.
Component Behavior Under Different Supply Conditions
The 0-30V adjustable output allows users to change the applied supply voltage when evaluating how a suitable component or circuit responds to different DC conditions. This can help with basic characterization and operating-condition comparison within the component's specifications.
Small Circuit Section Verification
The SPS-E305 can power a small section of an electronic circuit while users independently examine a component or group of components. This approach can be useful when troubleshooting a specific portion of a prototype rather than powering the entire system.
Electronics Education and Laboratory Training
The combination of a 3-digit display, Encoder Adjustment, adjustable voltage and current, and compact form factor makes the SPS-E305 suitable for educational exercises involving basic electronic components, DC circuits, and component response measurements.
Quality Check and Terms of Service
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Package includes: 1 × DC Power Supply
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1 × Power Cord
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1 × Output Test Lead
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1 × User Manual
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Has passed CE & FCC Certification.
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All DC power supplies and accessories are inspected before shipment to ensure good quality.
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Customer support: Contact us with any questions, and we'll respond within 24 hours.
Technical Specifications
| Parameter |
Specification |
| Model |
SPS-E305 |
| Product Type |
3-Digit DC Test Power Supply |
| Output Voltage |
0-30V |
| Output Current |
0-5A |
| Rated Power |
150W |
| Adjustment Method |
Encoder Adjustment |
| Display |
3-Digit Display |
| Input Voltage |
AC100-240V |
| Voltage Setting Resolution |
10mV |
| Current Setting Resolution |
1mA |
| Voltage Readback Resolution |
10mV |
| Current Readback Resolution |
1mA |
| Voltage Setting Accuracy |
≤0.05% + 10mV |
| Current Setting Accuracy |
≤0.01% + 10mA |
| Voltage Readback Accuracy |
≤0.05% + 10mV |
| Current Readback Accuracy |
≤0.01% + 10mA |
| Voltage Load Regulation |
≤0.3% + 10mV |
| Current Load Regulation |
≤0.1% + 2.5mA |
| Voltage Line Regulation |
≤0.01% + 2.5mV |
| Current Line Regulation |
≤0.1% + 2.5mA |
| Voltage Ripple |
≤60 mVp-p / ≤10 mVrms |
| Current Ripple |
≤10 mArms |
| Rise Time, No Load |
≤200ms |
| Rise Time, Full Load |
≤300ms |
| Fall Time, Full Load |
≤300ms |
| Fall Time, No Load |
≤15S |
| Dynamic Response |
≤200ms |
| Efficiency |
≥85% |
| Rated Operating Temperature |
0-40°C |
| Size |
About 18.5 × 10 × 7.8 cm |
| Net Weight |
About 0.7KG |
| Package Size |
23 × 19 × 11 cm |
| Package Weight |
1.1KG |
Why Choose NICE-POWER SPS-E305?
NICE-POWER SPS-E305 is designed around the practical requirements of Electronic Component Testing, where different components may require different DC test conditions. Its 0-30V adjustable voltage range and 0-5A adjustable current capability allow users to change test parameters rather than working with a fixed DC source.
The 3-Digit DC Test Power Supply format provides a direct numerical reference during bench work, while the Encoder Adjustment makes repeated voltage and current changes more convenient. The 10mV voltage setting resolution and 1mA current setting resolution further support controlled adjustment when comparing components or checking a circuit at different operating points.
With its 150W rated power and compact mini form factor, the SPS-E305 can fit into component evaluation benches, electronics repair stations, educational laboratories, and prototype development environments. It is a practical choice for users who need an Adjustable DC Power Supply for component evaluation without requiring a larger bench power system.