What are the names of these screws?

Hi. The longer two screws are PA2*8(2×8mm). The another is KM2*4(2×4mm). Hope it helps you.

How would the motor respond to a 5V pulse from a momentary push button?

Hi. Servo provides 500~2500 usec pulse signal under 5V voltage. The servo will directly rotate to the angle corresponding to the pulse value. Hope you have a good experience with our products.

Has anyone used these for model train N scale Peco switches?

Hello. There is no prescribed use equipment, and multiple assemblies and combinations can be cited. But need to meet the required voltage conditions. When you are using the servo, the voltage needs to reach 4.8-6V, connect the signal to the servo.

Do these have wires to connect to a battery pack?

To go to a battery pack, 5V or 4.5V, you may cut off the red wire from the 3-pin female connector and go to the plus of the battery. The orange or yellow wire must go to a PWM signal, usually from an Arduino using analogWrite. Black or brown wire goes to Arduino ground AND battery negative.

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Smraza 10 Pcs SG90 9G Micro Servo Motor Kit for RC Robot Arm/Hand/Walking Helicopter Airplane Car Boat Control with Cable, Mini Servos for Arduino Project

Product ID: 256693810

Details

Brand
Smraza
Item weight
0.16 Kilograms
Material
Plastic
Model name
S51
Number of Items
10

🔋Wide 4.8-6V operating voltage

⏱️Ultra-fast 0.08s/60° speed

⚙️Metal gears for durability

Description

⚡ Power your projects with precision and speed — don’t get left behind!

ROBUST TORQUE RANGE - Delivers 1.9 kg/cm stall torque across a full 180° range, giving your builds powerful and precise motion control.
LIGHTNING FAST RESPONSE - Achieve rapid 0.08 seconds per 60° rotation for ultra-smooth, real-time control in RC planes, cars, and robotic arms.
PLUG PLAY COMPATIBILITY - Seamlessly integrates with Arduino and Raspberry Pi via simple 3-pin PWM hookup—perfect for DIY pros and makers.
PRECISION METAL GEAR POWER - Upgraded metal pinion gear and shaft resist wear and heat, ensuring long-lasting performance in your micro-robotics projects.
VERSATILE MULTI PROJECT USE - Ideal for fixed-wing planes, gliders, micro-robots, boats, and compact RC mechanisms—expand your creative horizons effortlessly.

The Smraza 10 Pcs SG90 9G Micro Servo Motor Kit features upgraded metal gears for enhanced durability, ultra-fast 0.08s/60° rotation speed, and a wide operating voltage range of 4.8V to 6.0V. Designed for seamless Arduino and Raspberry Pi integration, these mini servos deliver 1.9 kg/cm stall torque across a 180° range, making them perfect for RC vehicles, robotic arms, and DIY electronics projects.

Specifications

ASIN	B07L2SF3R4
Best Sellers Rank	#75,488 in Toys ( See Top 100 in Toys ) #61 in RC Vehicle Servos
Brand Name	Smraza
Customer Reviews	4.5 4.5 out of 5 stars (1,065)
Included Components	SG90 9G Micro Servo Metal Geared Motor Ki
Item Type Name	servomotor
Item Weight	0.16 Kilograms
Manufacturer	Smraza
Material Type	Plastic
Model Name	S51
Number of Items	10
Part Number	S51-4-U-F
Unit Count	10 Count

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