ZZ MartsCMP-SW-12III

Tactile Push Button Switch 21mm Long Shaft (SW-12III) – Extra Long Stem Momentary Switch (Pack of 20)

Ultra Long 21mm Shaft Length
Momentary Push Button Operation
4-Pin Through-Hole PCB Mount
Ideal for Deep Panel Installations
Smooth and Responsive Tactile Feedback
Durable Plastic Body with Metal Contacts
Perfect for Thick Enclosures and Control Panels

Rs.200.00

Price includes tax. Delivery calculated at checkout.

Why our price is lower

We import directly and supply the trade from two shops in Karachi and Lahore. There is no middleman between the container and you. Same product, fewer hands.

In stock, ready to ship

Limited stock

1 year service warranty Void if burnt or physically damaged Claim it at either shop, or send it back — we handle the manufacturer for you. Invoice included with every order.

Will this fit my setup?

Check the voltage your existing wiring or adaptor supplies.
Measure the space, door thickness or bracket spacing before ordering.
Confirm it works with the recorder, panel or app you already use.
Still not sure? Send a photo of the old part, the door or the existing setup. We will tell you what fits - usually within minutes during shop hours.

Free delivery on orders over Rs 5,000
2-3 working days to Karachi, Lahore and Islamabad · 3-5 elsewhere
Cash on delivery available nationwide
Order before 4pm for same-day delivery in Karachi and Lahore · prepaid orders only
Save 4% when you pay by card or bank deposit · use code PREPAID4
Free collection from our Karachi or Lahore shop

Genuine product
7-day returns
Secure checkout
Trading since 2005

Not sure this is the right one? Ask us on WhatsApp - we will tell you straight.

Product details

Product Description

The Tactile Push Button Switch 21mm Long Shaft (SW-12III) is an extra-long actuator tactile switch, designed for applications where maximum button reach is required.

With its 21mm actuator height, this switch is ideal for very deep panels, thick enclosures, industrial equipment, and custom-built electronic systems. It allows reliable operation even when the switch must extend through long front panels or protective casings.

This momentary tactile push button activates only when pressed, making it suitable for signal input, control interfaces, and user-operated electronic devices. The 4-pin through-hole design ensures secure mounting on PCBs and stable electrical performance.

Due to its extra-long shaft, this switch is widely used in industrial electronics, DIY electronics, Arduino projects, and custom control systems, especially where standard-height switches are too short.

This 21mm tactile switch is one of the longest standard tactile switches available, making it highly useful for specialized electronic applications.