Part comparison

Hitec D645MW vs Hitec D955TW

A side-by-side comparison of source-backed specifications within the same subcategory.

12 shared specs3 scored

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HitecHitec D645MWD645MW

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HitecHitec D955TWD955TW

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Directional spec summary

Counts across 3 numeric specifications with a clear higher-or-lower direction.

Part A leads

Tied

Part B leads

These are metric-by-metric differences, not an overall performance score. Check the values below.

Specifications

12 specifications compared side by side.

Hitec D645MW / Hitec D955TW
Compare bySpecification	AHitecHitec D645MW	BHitecHitec D955TW
Performance3
Stall torque	1.265 Nm	2.844 Nm1.579 Nm higher
Stall torque @ 7.4V	12.9 kg·cm	29 kg·cm16.1 kg·cm higher
Speed @ 7.4V	0.17 s/60°	0.12 s/60°0.05 s/60° lower
Electrical1
Nominal voltage	7.4 V	7.4 V
Mechanical & integration4
Motor kind	Rc servo	Rc servo
Drive principle	servo actuator	servo actuator
Architecture	Rc servo module	Rc servo module
Gear materialUse-dependent	Metal	Titanium
Control & communication3
Communication interfaces	PWM	PWM
Control modes	PWM servo	PWM servo
Servo signal	PWM	PWM
Other specifications1
PWM pulse center	1500 µs	1500 µs

AHitecHitec D645MW

BHitecHitec D955TW

Performance3

Stall torque

Part A1.265 Nm

Part B2.844 Nm1.579 Nm higher

Stall torque @ 7.4V

Part A12.9 kg·cm

Part B29 kg·cm16.1 kg·cm higher

Speed @ 7.4V

Part A0.17 s/60°

Part B0.12 s/60°0.05 s/60° lower

Electrical1

Nominal voltage

Part A7.4 V

Part B7.4 V

Mechanical & integration4

Motor kind

Part ARc servo

Part BRc servo

Drive principle

Part Aservo actuator

Part Bservo actuator

Architecture

Part ARc servo module

Part BRc servo module

Gear materialUse-dependent

Part AMetal

Part BTitanium

Control & communication3

Communication interfaces

Part APWM

Part BPWM

Control modes

Part APWM servo

Part BPWM servo

Servo signal

Part APWM

Part BPWM

Other specifications1

PWM pulse center

Part A1500 µs

Part B1500 µs

Product sources

Product sources used by this comparison

Hitec D645MWNo public source

Hitec D955TWNo public source