Key Switch

Product Overview: Type 30 Key Switch (Pran Electronics)

The Type 30 Key Switch, manufactured by Pran Electronics Pvt. Ltd. (an ISO 9001:2015 certified company based in Vadodara, India), is a professional-grade, high-reliability tactile key switch. Known for its 30+ year design history, it is a high-quality equivalent to the ITW Series 60 and Stelvio Micro switches (Code 500/501).

This switch is widely regarded for its "soft touch" positive tactile feel and is a staple in medical, industrial, and precision weighing applications where long-term durability is non-negotiable.

Key Specifications

Feature	Details
Model Series	Type 30 (Available as Low Profile 30-10X and Standard 30-200)
Switch Type	SPST (Single Pole, Single Throw) Momentary
Contact Rating	20mA @ 35V DC
Operating Life	250,000 Cycles minimum
Contact Material	Silver Plated (High Conductivity)
Pin Configuration	4-Pin (Internal bridges allow use as jumpers in PCB layout)
Operating Temp	-30°C to +85°C

Design Variants & Customization

One of the standout features of the Type 30 series is its modularity. It is available in two main body styles with a wide array of interchangeable knobs (keycaps).

1. Low Profile (30-10X)

Designed for sleek, flat-panel interfaces.

Compact dimensions.

Available in various color codes (Black, Grey, Green, Blue, Red).

2. Standard (30-200)

A taller base designed for use with secondary knobs.

Supports multiple knob sizes for different ergonomic needs:

Rectangular: 8x6mm

Round: 7mm Diameter

Square: 10x10mm or 12.5x12.5mm

Why It’s a Preferred Choice

High Reliability: With a 250k cycle rating, it significantly outlasts standard consumer-grade tact switches. It is frequently specified for medical instruments where failure is not an option.

PCB Layout Efficiency: The 4-pin design is internally bridged in pairs. This allows PCB designers to use the switch itself to "jump" a trace, simplifying complex routing without adding extra components.

Tactile Signature: Unlike the "sharp" click of a 6x6mm tact switch, the Type 30 offers a more refined, "soft-touch" positive feedback that feels premium to the end user.

Global Compatibility: Because it is a 1:1 equivalent to international standards (ITW/Stelvio), it is an ideal drop-in replacement for maintenance or for localizing production in India.