Hitec HDS-577

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	HDS-577
Category	Hobby
Performance
Torque	6.0V 46.00 oz-in 4.8V 42.00 oz-in Below Average
Speed	6.0V 0.10 sec/60° 4.8V 0.12 sec/60° Average
Physical
Weight	0.63 ozAbove Average
Dimensions	L 1.10 in W 0.51 in H 1.10 in
Drivetrain
Motor Type	Brushed
Gears	Plastic
Control & Signal
Modulation	Digital
Pulse Cycle	20 ms
Pulse Width	900-2100 µs
Neutral Position	1500 µs
Dead Band	1 µs
Electrical & Environment
Operating Voltage	4.8–6 V

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Below Average Stronger than 28% of 262 Digital Mini servos at 4.8V
Speed	Average Faster than 53% of 263 Digital Mini servos at 4.8V
Weight	Above Average Lighter than 83% of 466 Digital Mini servos

Performance Analysis

Shaft Power	0.65–0.85 W
Power Density	1.378 W/in³ More power-dense than 41% of 440 Digital Mini servos
Torque Density	2.3464 oz-in/g Stronger than 47% of 258 Digital Mini servos
Torque-to-Volume Ratio	68.06 oz-in/in³ Denser torque than 41% of 262 Digital Mini servos
Speed-to-Weight	0.46555 (1/sec·g) Faster than 76% of 259 Digital Mini servos
Speed-Torque Trade-off	5.04 Better balanced than 29% of 261 Digital Mini servos
Torque Gain per Volt	7.94%/V More voltage-responsive (torque) than 2% of 232 Digital Mini servos
Speed Gain per Volt	16.67%/V More voltage-responsive (speed) than 54% of 235 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 34% of 351 Digital Mini servos
Dead-Band-to-Pulse-Width Ratio	0.0008 3rd-highest dead-band-to-pulse-width ratio of 77 Digital Mini servos