EMAX ES09MD HV Digital Metal Gear Micro Servo

Stop cooking budget servos on direct 2S LiPo bus power or suffering mid-flight cyclic flutter. The EMAX ES09MD HV digital micro servo delivers high-voltage performance and dual-bearing precision for demanding 450 helicopter swashplates, fixed-wing linkages, and pan-tilt mechanisms. Backed by our 10 years of experience in the manufacturing and delivery of commercial FPV systems, we know how PWM jitter, stripped geartrains, and voltage drops ruin flight controller PID stabilization. Packing a 21T spline, metal gears, and 3.1 kg.cm of stall torque at 8.4V into a featherweight 13.5g case, this digital actuator gives you razor-sharp response without requiring bulky external step-down regulators.

Key Highlights

• Direct High-Voltage Operation: Runs natively from 6.0V up to 8.4V, generating up to 3.1 kg.cm stall torque and 0.12 sec/60° transit speed without an external BEC.
• Dual Ball Bearing (2BB) Support: Dual-bearing output assembly eliminates slop and shaft play for consistent centring.
• Durable Metal Geartrain: Reinforced metal internal gears and a 21T output spline withstand high cyclic loads and aggressive surface deflections.
• Extended PWM Pulse Travel: Provides 90° ± 8° operating travel across 1000–2000 µsec, expanding to 175° ± 10° across the full 500–2500 µsec pulse width range.

Why You Want It

Because stripping nylon servo gears on an aggressive cyclic roll or sending your aircraft into the turf due to voltage sag is an expensive hobbyist headache. The EMAX ES09MD HV handles direct 8.4V bus lines with a 9.5mA idle draw, delivering 3.1 kg.cm of high-voltage holding torque when your gyro demands instant correction. Yes, we obviously want your money, but we would much rather you spend your flight sessions ripping clean lines instead of fishing stripped plastic gear teeth out of your airframe.

Specifications

• Weight: 13.5 ± 1 g
• Operating Voltage: 6.0V – 8.4V
• Operating Speed (at no load): 0.17 sec/60° (6.0V) | 0.12 sec/60° (8.4V)
• Running Current (at no load): 200mA Max (6.0V & 8.4V)
• Stall Torque: 2.3 kg.cm Max (6.0V) | 3.1 kg.cm Max (8.4V)
• Maximum Current: 0.65A Max (6.0V) | 0.9A Max (8.4V)
• Idle Current: 9.5mA (6.0V & 8.4V)
• Bearing: 2BB (Dual Ball Bearing)
• Gear Type: Metal
• Output Gear Spline: 21T (Ø4.95 ± 0.05 mm)
• Connector Wire Gauge & Length: JR, 250 ± 8 mm (without connector)
• Control System: PWM
• Neutral Position: 1500 µsec
• Pulse Width Range: 500–2500 µsec
• Operating Travel: 90° ± 8° (1000–2000 µsec) | 175° ± 10° (500–2500 µsec)
• Rotating Direction: Counter Clockwise / Pulse Traveling 1500 to 1900 µsec
• Extreme Angle: 360°
• Operating Temperature Range: -10°C to 50°C
• Storage Temperature Range: -20°C to 60°C
• Dimensions: 23.20 × 12.00 × 24.50 mm (27.60 mm total height with spline, 32.00 mm mounting ear span)

FAQ

What pulse width range and travel does the EMAX ES09MD HV support?

The EMAX ES09MD HV operates on a standard 1000–2000 µsec PWM pulse for 90° ± 8° of travel, and extends to a maximum travel of 175° ± 10° when driven across a 500–2500 µsec pulse width range.

What’s in the Box*

• 1× EMAX ES09MD HV Digital Micro Servo with JR Lead (250mm)
• Accessory Pack: Data unavailable (the manufacturer blueprint focuses strictly on raw engineering dimensions, though standard horn and screw packs are typically provided in retail packaging).

Disclaimer

All technical specifications are pulled directly from the manufacturer engineering drawing (V1.2). Supplying over 8.4V or binding linkages past mechanical travel limits will release the magic smoke and void your warranty.

Still Here?

Your control surfaces will not eliminate their own slop. Add the EMAX ES09MD HV to your cart and lock in high-voltage digital precision today.