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Technical Specifications
Last Updated: 2026-10-22| Identity | |
| Brand |  |
| Product Number | 33045S |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
17.00 oz-in
1.22 kg-cm
0.1 N-m
4.8V
14.00 oz-in
1.01 kg-cm
0.1 N-m
Below Average
|
| Speed |
6.0V
0.12 sec/60°
500.0 deg/s
83.3 RPM
4.8V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Below Average
|
| Running Current |
4.8V0.100 A100 mATop 10% |
| Stall Current | ≤0.44 A≤440 mATop 10% |
| Physical | |
| Weight | 0.28 oz7.9 gAbove Average |
| Dimensions |
L 0.92 in W 0.38 in H 0.88 in L 23.4 mm W 9.7 mm H 22.4 mm |
| Case Material | Plastic |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Karbonite |
| Gear Spline/Teeth | 15 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Rotational Range | 191° |
| Mechanical Limit | 191° |
| Pulse Cycle | 20 ms |
| Pulse Width | 790-2405 µs |
| Neutral Position | 1500 µs |
| Dead Band | 5 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.008 A8 mA |
| Connectivity | |
| Wire Length | 250 mm9.84 in |
| Origin | |
| Country of Origin | China |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Below Average Stronger than 25% of 160 Analog Micro servos at 4.8V |
| Speed | Below Average Faster than 30% of 160 Analog Micro servos at 4.8V |
| Weight | Above Average Lighter than 66% of 336 Analog Micro servos |
| Running Current | Top 10% Lower draw than 93% of 31 Analog Micro servos at 4.8V |
| Stall Current | Top 10% Lower draw than 98% of 48 Analog Micro servos |
Performance Analysis
| Shaft Power | 0.18–0.26 W |
| Power Density | 0.851 W/in³ More power-dense than 50% of 322 Analog Micro servos |
| Torque Density | 1.7722 oz-in/g Stronger than 28% of 160 Analog Micro servos |
| Torque-to-Volume Ratio | 45.51 oz-in/in³ Denser torque than 37% of 160 Analog Micro servos |
| Speed-to-Weight | 0.90416 (1/sec·g) Faster than 49% of 160 Analog Micro servos |
| Speed-Torque Trade-off | 1.96 Better balanced than 32% of 159 Analog Micro servos |
| Current-per-Torque Ratio | 0.0314 A/oz-in More efficient than 73% of 38 Analog Micro servos |
| Idle-to-Running Current Ratio | 0.080 Lower idle draw than 35% of 24 Analog Micro servos |
| No-Load vs Stall Current Spread | 4.40 Narrower current spread than 41% of 23 Analog Micro servos |
| Torque Gain per Volt | 17.86%/V More voltage-responsive (torque) than 66% of 101 Analog Micro servos |
| Speed Gain per Volt | 13.88%/V More voltage-responsive (speed) than 35% of 101 Analog Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 78% of 174 Analog Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0031 Finer dead band than 76% of 42 Analog Micro servos |
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Reviews (6)
Includes 1 review aggregated from around the web.
There are very few reviews for this servo on the web. The one customer review gives 5 stars, calling it a reliable feather-weight servo for small planes that ran without trouble from ESC-based BEC power. The reviewer had one unit wag in a rudder during big 3D moves in strong prop wash, and Hitec replaced it without question.
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Ignacio
August 31, 2020Application(s): Robot
Comments: They do the job poorly. Lot of jitter and noise without even a high load.
Mark
September 30, 2014Application(s): 3dhs 41"edge ailerons
Comments: Both servos seamed to be functioning fine however when I measured the throws 1 was 20% less then the other. I tried them on a wye to see if it was radio or receiver related (same outcome)I went back to seperate channels and mixed out 20% from the one and still had my full 1.5 inches of travel (problem solved) however this should not have been necessary and must indicate 2 different pot readings from what I see the pot quality control must be poor.
Georg
September 26, 2014Application(s): Tail servo on 2m TD glider
Comments: Got the jitters with less than 10 hours of use, clearly a potentiometer problem. Servo was not stressed at all during use :_(
Randino
May 16, 2012Application(s): EPP foamie
Comments: The potentiometers failed on all 3 of mine, starting with ailerons on around the 40th flight. I rotated the servo horns one notch and used sub-trim so that neutral would be in a different spot on the POT, but the new spot is already starting to get jittery.
Gary Parker
January 13, 2012Application(s): Small to medium gliders and power planes where thin servos are necessary
Comments: These are quite good. They are thin. But the torque is not high. They are fairly resistant to stripping, but they will strip. They are noisy. Overall, quite good for applications where a thin, light servo is required, but not amazing or anything.