HobbyWing UBEC 25A (6-25.2V)
by HobbyWing

The Hobbywing UBEC 25A HV (Model: 30606000) is an external high-voltage switching-mode DC-DC regulator engineered for large-scale RC helicopters, giant-scale fixed-wing aircraft, and heavy-lift UAV platforms. Designed to step down battery voltages across a wide 3S to 18S LiPo range (9V to 80V DC), this UBEC delivers a continuous output current of 25A with short-duration peak capacity up to 50A.

Built with a rugged aluminum alloy case for efficient heat dissipation and electromagnetic interference (EMI) reduction, the UBEC 25A HV features an integrated dual-battery backup power system. If the primary high-voltage battery supply drops or fails, the unit seamlessly draws power from a secondary 1S to 2S backup battery (3V to 9V DC) to maintain continuous power to receivers and flight control servos. With BEC shoot-through protection, selectable output voltages (5.2V, 6.0V, 7.4V, 8.4V), an external power switch, and 8 parallel output ports, it offers complete power protection for mission-critical aircraft.

Key Features

• 3S to 18S High Voltage Input Range: Accepts main power inputs from 9V to 80V DC (3S–18S LiPo) to handle high-voltage aircraft power systems.

• High Output Current Capability: Delivers 25A continuous current and up to 50A peak burst current with over 90% conversion efficiency.

• Integrated Backup Power Redundancy: Secondary 1S to 2S LiPo battery port automatically powers receivers and servos if the main battery supply fails.

• Selectable Output Voltages: Jumper-adjustable voltage options (5.2V, 6.0V, 7.4V, 8.4V) support both standard and high-voltage (HV) digital servos.

• BEC Shoot-Through Protection: Prevents high main-pack voltage from flowing directly into receivers and electronic equipment in the event of internal BEC damage.

• Aluminum Alloy Heatsink Case: Fully encased metal body accelerates thermal cooling and shields internal circuitry against electromagnetic noise.

• 8 Parallel Output Headers: Vertical 3-pin pin header array allows multiple servo lead connections to distribute heavy current loads evenly.

• Comprehensive Safety Circuitry: Built-in safeguards protect against over-current, output short-circuit, thermal overheating, and low voltage.

Technical Specifications

• Brand / Manufacturer: Hobbywing

• Model Identifier: UBEC 25A HV

• Manufacturer SKU / Part Number: 30606000

• Regulator Circuit Type: Switch-Mode DC-DC Regulator

• Continuous Current: 25A

• Peak Burst Current: 50A

• Main Power Supply Input Voltage: 3S – 18S LiPo (9.0V – 80.0V DC)

• Backup Power Supply Input Voltage: 1S – 2S LiPo (3.0V – 9.0V DC)

• Adjustable Output Voltages: 5.2V / 6.0V / 7.4V / 8.4V DC

• Conversion Efficiency: Exceeds 90%

• Main Power Input Wires: Red 16AWG (270mm) x1 / Black 16AWG (270mm) x1

• Backup Power Input Wires: Yellow 16AWG (150mm) x1 / Black 16AWG (150mm) x1

• Output Interface: 3P Vertical Pin Header Array (8 parallel output channels)

• Protection Features: BEC Shoot-Through, Over-Current, Output Short-Circuit, Over-Heat, Low-Voltage Cutoff

• Dimensions: 55.0 mm x 40.2 mm x 17.6 mm

• Net Weight: 74.0 grams

What Is Included

• (1) Hobbywing UBEC 25A HV Voltage Regulator Unit (Model: 30606000)

• (1) External Power Switch Module

• (4) 100mm 60-Strand PVC Output Wires with 3P-JR Male Connectors

• (1) User Instruction Manual