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

Name: Tactile Push Button Switch 21mm Long Shaft (SW-12III) – Extra Long Stem Momentary Switch
SKU: 31734
Availability: InStock

Key Features

• 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

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~~₨100.00~~ ₨10.00

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Categories: Micro Touch Tact Switches, Tact Switches & Ports Tags: 21mm tactile switch, 6x6 tactile switch long stem, extra long tactile push button, long actuator tactile switch, long shaft tactile switch 21mm, tactile switch for deep panel

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Description
Specification

Description

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.

Technical Specifications

Product Type: Tactile Push Button Switch

Model: SW-12III

Actuator Length: 21mm

Switch Size: 6 × 6 mm Base

Number of Pins: 4 Pin

Operation Type: Momentary (Push Button)

Contact Type: Normally Open (NO)

Mounting Type: Through-Hole PCB

Material: Plastic Body with Metal Contacts

Color: Black

Application: Electronic Switching

🎯 Applications

Deep Panel Electronics

Industrial Control Systems

Arduino & Microcontroller Projects

DIY Electronics

Control Boxes

Embedded Systems

Custom Electronic Enclosures

Repair & Maintenance Work

Consumer Electronics

Frequently Asked Questions (FAQs)

Q1: When should I use a 21mm tactile switch?
Use this switch when working with very thick panels or deep enclosures where standard tactile switches cannot reach.

Q2: Is this switch momentary or locking?
This is a momentary push button switch, meaning it works only while pressed.

Q3: Can this be used in Arduino projects?
Yes, it is fully compatible with Arduino and other microcontroller-based circuits.

Q4: How many pins does this tactile switch have?
It features 4 pins for stable PCB mounting.

Q5: What makes extra-long tactile switches useful?
They allow easy operation through deep housings and thick panels, improving usability and accessibility.

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