Hobbywing UBEC 3A 5A Peak DC-DC Step-Down Regulator – 2–6S LiPo / 5–18S NiMH, Switchable 5V/6V Output, Lightweight External BEC for RC Airplanes, Helicopters, Drones & FPV Systems

The Hobbywing UBEC 3A Max 5A Step-Down Regulator is a compact, lightweight, and highly efficient external BEC designed to provide stable and reliable power for your receivers, servos, and flight controllers. With support for a wide input range (5.5V–26V) and selectable 5V or 6V outputs, this UBEC is perfect for RC airplanes, helicopters, drones, and FPV builds that require dependable voltage regulation.

✅ Stable Power Delivery

Delivering 3A continuous current and up to 5A peak, this UBEC ensures your servos and onboard electronics receive clean, consistent voltage, even during demanding flight conditions. Its switch-mode DC-DC design maintains high efficiency while minimizing heat output.

✅ Flexible Voltage Options

Easily switch between 5V or 6V output via a jumper cap, giving you the ability to power a variety of RC systems and servos. This flexibility makes it compatible with both standard and high-voltage electronic setups.

✅ Wide Input Compatibility

Supporting 2–6S LiPo packs or 5–18S NiMH/NiCd batteries, the UBEC is ideal for high-voltage RC aircraft and multicopters. It ensures that sensitive electronics like receivers and gyros receive stable power, even from large-capacity battery systems.

✅ Built-In Protection & Noise Reduction

Equipped with thermal shutdown, overload, and reverse polarity protection, the UBEC keeps your electronics safe from unexpected failures. The addition of a magnetic ring and shielding reduces electrical noise, ensuring smoother signal transmission for RC receivers and flight controllers.

✅ Compact & Lightweight

Weighing only 11g and measuring 43 × 17 × 7mm, the Hobbywing UBEC 3A is small enough for tight RC builds while still providing powerful performance. Its lightweight design ensures minimal impact on flight dynamics.

✅ Technical Specifications

Output Voltage: 5V / 6V (jumper selectable)

Output Current: 3A continuous, 5A peak

Input Voltage: 5.5–26V (2–6S LiPo, 5–18S NiMH/NiCd)

Efficiency: >90%

Ripple: <50mVp-p (@2A/12V input)

Size: 43 × 17 × 7mm

Weight: 11g

Protection: Overheat, Overload, Reverse Polarity

Connector: JR-style servo plug