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 SG90 9G Micro Servo Motor Kit Metal Gear for Arduino RC Plane 10 Pcs | 180°, 1.9kg·cm torque @6V, 0.08s/60° speed, 4.8–6V,metal motor gear & metal shaft for RC Airplane Robot Arm DIY

Product ID: 98268803

Details

Brand
Smraza
Item Weight
0.16 kg
Manufacturer
Smraza
Number of Items
10

🔋Wide 4.8-6V operating voltage

⏱️Ultra-fast 0.08s/60° response

⚙️Metal gears resist wear & heat

R809

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Description

⚡ Gear up your DIY game with precision power and speed!

LIGHTNING FAST RESPONSE - Achieve rapid 0.08 seconds per 60° rotation for ultra-smooth, precise control in your RC planes and robots.
PLUG PLAY COMPATIBILITY - Seamlessly integrates with Arduino, Raspberry Pi, JR/FUTABA receivers via simple 3-pin PWM hookup—perfect for pros and makers.
ROBUST TORQUE PERFORMANCE - Delivers 1.9 kg/cm stall torque ensuring strong, reliable movement across a full 180° sweep.
PRECISION METAL GEAR POWER - Upgraded metal pinion gear & shaft for unmatched durability and heat resistance—no more plastic gear failures.
VERSATILE MULTI PROJECT READY - Ideal for micro-robots, RC helicopters, robotic arms, and DIY builds—10-pack ensures you never run out mid-project.

The Smraza SG90 9G Micro Servo Motor Kit features upgraded metal gears and shafts for enhanced durability and heat resistance, delivering a fast 0.08s/60° running speed and strong 1.9 kg/cm torque across a 180° range. Compatible with Arduino, Raspberry Pi, and popular RC receivers, this 10-pack is perfect for micro-robots, RC planes, and precision DIY projects requiring reliable, high-performance servo motors.

Specifications

ASIN	B07L2SF3R4
Best Sellers Rank	#47,021 in Toys & Games ( See Top 100 in Toys & Games ) #25 in RC Servos
Brand Name	Smraza
Customer Reviews	4.5 4.5 out of 5 stars (1,306)
Item Weight	0.16 kg
Manufacturer	Smraza
Number of Items	10
Part Number	S51-4-U-F
Unit Count	10 Count

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TrustScore 4.5 | 7,300+ reviews

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R809

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Received my product in pristine condition. Great service overall.

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