HOLYBRO UBEC 12A (3S-14S)

HOLYBRO UBEC 12A (3–14S) – Adjustable Power Supply for Servos and Electronic Components

The HOLYBRO UBEC 12A is a high-performance synchronous DC-DC step-down regulator designed to provide reliable power for servos, receivers, and other electronic components in UAVs and other unmanned systems. The UBEC supports a wide input voltage range of 3S to 14S LiPo and converts the battery voltage into a stable, adjustable output voltage.

The output voltage can be configured via the integrated DIP switches to 6.0 V, 7.2 V, 8.0 V, or 9.2 V. This allows the UBEC to be flexibly adapted to different servos, receivers, and peripheral devices. With a continuous output current of up to 12 A and a short-term peak current of up to 24 A, it is also suitable for applications with higher power requirements.

Efficient DC-DC Voltage Regulation

The UBEC uses a highly efficient DC-DC regulator with an efficiency of over 90%. The high input voltage from the flight battery is efficiently reduced and stabilized to the selected output voltage.

This allows sensitive electronic components to be supplied with a constant voltage suitable for the respective device, regardless of the battery voltage used by the main system.

Adjustable Output Voltage

Four different output voltages can be selected using the integrated DIP switches. This allows the power supply to be configured according to the requirements of the connected components.

• 6.0 V
• 7.2 V
• 8.0 V
• 9.2 V

3S to 14S Input Voltage

The HOLYBRO UBEC 12A supports a wide input voltage range of 3S to 14S. This makes it suitable for a wide range of UAV and robotics platforms, from conventional multicopters to high-performance systems using high-voltage batteries.

• Input Voltage: 3S–14S
• Input Connector: XT30

Up to 12 A Continuous Current

The UBEC provides a continuous output current of up to 12 A. Short-term load peaks of up to 24 A can be supported. This makes the power supply suitable for multiple servos or other components with higher current requirements.

• Continuous Current: 12 A
• Peak Current: 24 A

Four Servo Outputs

For direct servo power supply, the UBEC provides four parallel-connected pin header outputs. This allows multiple servos to be centrally supplied with the selected output voltage.

The four outputs are connected in parallel and share the total available output capacity of the UBEC.

XT30 Output for High-Power Loads

In addition to the servo connections, the UBEC features an XT30 output. This can be used for electronic components with higher current requirements or devices that require a separate power connection.

Comprehensive Protection Features

The HOLYBRO UBEC 12A features several integrated protection functions designed to protect both the module and connected components under critical operating conditions.

• Overcurrent protection
• Output short-circuit protection
• Overtemperature protection
• Undervoltage shutdown

Metal Housing for Improved Heat Dissipation

The UBEC is enclosed in a robust metal housing. The housing supports efficient dissipation of heat generated during operation while also helping to reduce electromagnetic interference.

Efficient heat dissipation is particularly important at higher output currents to ensure reliable operation of the power supply.

Features

• Synchronous DC-DC step-down regulator
• 3S to 14S input voltage range
• Efficiency of over 90%
• Adjustable output voltage via DIP switches
• Selectable 6.0 V / 7.2 V / 8.0 V / 9.2 V output
• Up to 12 A continuous output current
• Up to 24 A peak current
• Four parallel-connected servo outputs
• XT30 output for higher-current loads
• Overcurrent protection
• Short-circuit protection
• Overtemperature protection
• Undervoltage shutdown
• Robust metal housing
• Efficient heat dissipation
• Reduced electromagnetic interference

Technical Specifications

• Product Type: UBEC / DC-DC Voltage Regulator
• Input Voltage: 3S–14S
• Input Connector: XT30
• Output Voltage: 6.0 V / 7.2 V / 8.0 V / 9.2 V
• Voltage Selection: DIP switches
• Continuous Current: 12 A
• Peak Current: 24 A
• Efficiency: over 90%
• Servo Outputs: 4 × parallel-connected pin headers
• High-Current Output: XT30
• Dimensions: 48 × 33.6 × 16.3 mm
• Weight: 47.8 g

Package Contents

• 1 × HOLYBRO UBEC 12A Power Module
• 1 × XT30 18 AWG Cable
• 1 × DuPont 3-Pin Cable

Flexible Power Supply for UAV and Robotics Systems

The HOLYBRO UBEC 12A provides a compact and powerful solution for supplying servos, receivers, and other electronic components with a stable regulated voltage independently of the main battery voltage. Its wide 3S to 14S input voltage range allows the module to be integrated into a variety of different platforms.

The adjustable output voltage, 12 A continuous output current, four servo connections, and additional XT30 output make the UBEC particularly suitable for UAVs, UGVs, robotics platforms, and custom unmanned systems.