Part comparison

Hitec D645MW vs Hitec DB777WP

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 DB777WPDB777WP

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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 DB777WP
Compare bySpecification	AHitecHitec D645MW	BHitecHitec DB777WP
Performance3
Stall torque	1.265 Nm0.186 Nm higher	1.079 Nm
Stall torque @ 7.4V	12.9 kg·cm1.9 kg·cm higher	11 kg·cm
Speed @ 7.4V	0.17 s/60°	0.06 s/60°0.11 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	Steel
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 DB777WP

Performance3

Stall torque

Part A1.265 Nm0.186 Nm higher

Part B1.079 Nm

Stall torque @ 7.4V

Part A12.9 kg·cm1.9 kg·cm higher

Part B11 kg·cm

Speed @ 7.4V

Part A0.17 s/60°

Part B0.06 s/60°0.11 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 BSteel

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 DB777WPNo public source