JR MN48

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*Based on known specs.

Technical Specifications

Last Updated: 2026-09-14

Identity
Brand
Product Number	JSP20040
Category	Hobby
Discontinued	Yes
Performance
Torque	4.8V48.00 oz-inAbove Average
Speed	6.0V 0.15 sec/60° 4.8V 0.18 sec/60° Below Average
Physical
Weight	0.80 ozAverage
Dimensions	L 1.30 in W 0.58 in H 1.02 in
Drivetrain
Gears	Plastic
Rotation/Support	Single Bearing
Control & Signal
Modulation	Analog
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal)

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 79% of 77 Analog Mini servos at 4.8V
Speed	Below Average Faster than 14% of 77 Analog Mini servos at 4.8V
Weight	Average Lighter than 38% of 161 Analog Mini servos

Performance Analysis

Shaft Power	0.49 W
Power Density	0.641 W/in³ More power-dense than 34% of 158 Analog Mini servos
Torque Density	2.1164 oz-in/g Stronger than 62% of 77 Analog Mini servos
Torque-to-Volume Ratio	62.41 oz-in/in³ Denser torque than 79% of 77 Analog Mini servos
Speed-to-Weight	0.24495 (1/sec·g) Faster than 21% of 77 Analog Mini servos
Speed-Torque Trade-off	8.64 Better balanced than 87% of 77 Analog Mini servos
Speed Gain per Volt	16.68%/V More voltage-responsive (speed) than 56% of 58 Analog Mini servos
Voltage Range Width	1.2 V Wider voltage range than 66% of 88 Analog Mini servos