Holybro UBEC 12A (3-14S)
by Holybro

The Holybro UBEC 12A (3-14S) (SKU: 15026) is a high-current synchronous step-down DC-DC voltage regulator engineered to convert high-voltage battery power into a stable, regulated rail for UAV avionics, high-torque servos, gimbals, and auxiliary payloads. Operating across a wide 3S to 14S LiPo input range via a pre-wired XT30 power lead, it achieves over 90% power transfer efficiency while delivering 12A of continuous current and up to 24A peak burst capacity.

Output voltage is configurable between 6.0V, 7.2V, 8.0V, and 9.2V via onboard DIP switches, setting the selected rail simultaneously across four parallel servo header pin outputs and a dedicated high-current XT30 output port. Housed in a shielded metal enclosure with integrated mounting holes to accelerate heat dissipation and suppress electromagnetic interference (EMI), the module incorporates multi-layer safeguards against over-current, output short-circuit, overheating, and low-voltage cutoff.

Key Features

• Wide 3S–14S LiPo Input Range: Accepts high-voltage battery configurations from 3S up to 14S LiPo through a pre-wired XT30 input connector.

• High-Current 12A Continuous / 24A Burst Output: Supplies up to 12A continuous and 24A peak current to reliably drive multiple digital servos, heavy-duty retracts, and camera gimbals without voltage sag.

• DIP-Switch Selectable Output Voltage: Onboard DIP switches allow rapid selection between 6.0V, 7.2V, 8.0V, and 9.2V regulated outputs to match standard or high-voltage electronics.

• High-Efficiency Synchronous Regulation (>90%): High-efficiency DC-DC converter architecture achieves over 90% transfer efficiency, minimizing thermal loss and extending battery endurance.

• Dual-Interface Parallel Outputs: Combines four parallel 3-pin servo header outputs with a high-current XT30 output socket (all sharing the selected output voltage).

• Metal EMI-Shielded Housing: Anodized metal casing dissipates heat rapidly, reduces electromagnetic interference near sensitive flight sensors, and includes two integrated mounting holes for secure airframe installation.

• Comprehensive Circuit Protection: Integrated safeguards protect connected hardware against over-current, output short-circuits, overheating, and low-voltage cutoff.

Technical Specifications

• Brand / Manufacturer: Holybro

• Model Identifier: UBEC 12A (3-14S)

• Manufacturer SKU / Part Number: 15026

• Regulator Topology: Synchronous Step-Down DC-DC Switching Regulator

• Transfer Efficiency: > 90%

• Input Voltage Range: 3S – 14S LiPo

• Input Connector: Pre-Wired XT30 Male Connector

• Output Voltage Options: 6.0V / 7.2V / 8.0V / 9.2V DC (Selectable via onboard DIP switches)

• Continuous Output Current: 12A

• Peak Burst Output Current: 24A

• Output Connectors:

  • 4-Channel Parallel Header Pin Outputs (Servo / Receiver rails)

  • 1x XT30 Output Port (High-current devices)

• Built-In Protections: Over-Current, Output Short-Circuit, Overheat (Thermal), and Low-Voltage Cutoff

• Enclosure & Mounting: Shielded Metal Housing with Dual Integrated Mounting Holes

• Dimensions: 48.0 mm x 33.6 mm x 16.3 mm

• Net Weight: 47.8 grams

What Is Included

• (1) Holybro UBEC 12A (3-14S) Power Module (SKU: 15026)

• (1) XT30 18AWG Cable

• (1) DuPont 3-Pin Cable