UNBWT1015 Standard Power Supply

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The UNOWT 15W Series is an open-frame switching power supply for industrial equipment (15W class, standard product). It features a compact board size of 2 inches x 3.4 inches, complies with the safety standard 62368-1, and conforms to PSE Appendix Table 8 (100V standard). Five models are available with outputs ranging from DC3.3V to 24.0V.

Based on the same board design, you can choose from three types: board only, with chassis, or with chassis + cover. Depending on the internal mounting method of the equipment and requirements for electric shock and contact protection, it is possible to change only the enclosure specification later. In addition, a built-in trimmer potentiometer on the board allows the output voltage to be adjusted within a range of ±10%.

Enclosure Options (3 Types)

You can select the enclosure specification by the suffix code of the model number. Electrical specifications are the same.

The model number consists of "symbol indicating a UNIFIVE developed product + series code + input voltage + output power + function symbol".

Key Features

1) Output voltage adjustable within ±10%

Using the onboard trimmer potentiometer (VR1), the output voltage can be adjusted within ±10% of the rated value. This allows for fine adjustment to account for voltage drops on the load side and final tuning on the actual device, expanding the range in which the standard model can be adopted as-is.

2) Operating temperature -10 to +70°C, supports 6 mounting directions

The operating temperature range is -10 to +70°C, and the storage temperature range is -30 to +75°C. The mounting direction supports six orientations (A to F), including the standard position, allowing flexible placement according to the internal layout of the equipment. Under natural convection, the load factor is 100% at -10 to +50°C, 70% at +60°C, and 40% at +70°C.

Note: The allowable load factor varies depending on the combination of ambient temperature, mounting orientation, and cooling conditions (natural convection / forced air cooling). For derating curves based on your actual operating conditions, please contact our sales representative.

3) Compact 2-inch × 3.4-inch board

The board dimensions are 87.5 × 50.0 mm (3.44 × 1.97 inches), with a component height of 17.4 mm or less from the top side and 3.0 mm or less from the bottom side. There are two mounting holes (φ3.50 mm). As a 15 W-class control power supply, it is designed for easy installation in limited spaces inside equipment.

4) Specifications for Installation Environments of Industrial Equipment

The overvoltage category supports OVC III (altitude 2,000m), and the operating altitude is up to 5,000m. It also complies with the dust protection requirements of PSE Appendix Table 8.

5) Compliant with Energy Efficiency Level VI and LPS Support

Energy Efficiency Level VI (ErP/DoE) compliant, and conforms to EU Commission Regulation 2019/1782 and U.S. DOE 10 CFR Part 429 and 430. It also supports LPS (Limited Power Source), making it easier to meet requirements in secondary-side circuit design.

6) Equipped with 3 Protection Circuits and Up to 5-Year Warranty

This product is equipped with three types of protection circuits: Short Circuit Protection (SCP), Over Voltage Protection (OVP), and Over Current Protection (OCP). In addition, it comes with a warranty of up to 5 years, making it easy to incorporate into maintenance plans for industrial equipment intended for long-term operation. For details regarding warranty terms and conditions, please contact our sales department.

List of Representative Models

Output port: CN2 / The output voltage can be adjusted within a ±10% range using a semi-fixed resistor.
The above model numbers are without chassis (board only). With chassis: UNBWT1015, with chassis + cover: UNSWT1015.
Measurement conditions: Measurements are performed using an oscilloscope with a bandwidth of 100MHz. The output is bypassed at the connector with a 0.1uF ceramic disk capacitor and a 100uF low-ESR electrolytic capacitor to simulate system load. The cable length during ripple measurement is 150mm.

Common Specifications

Note: The acquired safety standards vary depending on the model. For certification status of specific models, please contact our sales department.

External Dimensions and Connector Specifications

Dimensional tolerance: ±0.5mm. For dimensions and detailed drawings of the chassis version (UNBWT1015), please contact our sales department.

Main Applications

This product can be widely used as a control power supply built into industrial equipment. Leveraging its 15W class rating, compact board design, and wide operating temperature range, it is suitable for the following applications.

• Power supply for control circuits in industrial and manufacturing equipment
• Semiconductor manufacturing equipment and peripheral devices
• Power supply for sensors and measurement units
• Built-in use in control panels and distribution boards
• Auxiliary power supply for FA equipment and conveyor systems
• Equipment used in high-altitude locations or environments with large temperature fluctuations

If higher output is required, we can provide higher wattage open-frame power supplies.

Semi-Custom Support

Output voltage and current, connector type and position, chassis shape, and the addition of harnesses can be semi-customized to match your equipment. Because we use standard products as a base, specifications can be optimized while reducing development time and initial costs compared to full custom solutions.

For specification confirmation, quotations, or sample requests, please feel free to contact our sales team. You can view customization examples on the Customization Examples page.

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