Standard Key switch

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Key Switch-standard

Standard Key switch

Precision Engineering by Pran Electronics Pvt. Ltd.

Short description: Standard Key switch

Size:
10x10x15mm height
Function:
Momentary ON (Non Lock), SPST switch
Rating:
20 mA, 35 V DC
Part code:
30-200
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Data Sheet
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The Type 30-200 is the flagship “Standard” variant within the Type 30 family. While the 30-100 series focuses on low-profile applications, the 30-200 is designed for traditional panel interfaces that require a taller profile, specific knob attachments, and a more robust mechanical presence.

Known as a high-quality equivalent to the ITW Series 60 and Stelvio Micro Code 501, this switch is a staple in the Indian and international electronics markets for its “Soft Touch” positive tactile feedback and exceptional longevity.

Feature Details
Model Number 30-200 (Standard Height)
Base Dimensions 10mm x 10mm x 12mm (Base only)
Total Height 15.0mm (to top of plunger)
Switching Type SPST (Single Pole, Single Throw) Momentary
Contact Rating 20mA @ 35V DC
Mechanical Life 250,000 Cycles minimum
Dielectric Strength 500V AC for 1 minute
Operating Force 130gf (Refined tactile feel)

Why the 30-200 is a “Standard” Choice

  • The “Soft Touch” Signature: Unlike the harsh “click” of miniature tact switches, the 30-200 offers a smooth, controlled resistance with a clear, soft-bottoming tactile feel. This makes it ideal for precision instruments where user comfort is prioritized.

  • Modular Knob Compatibility: The 30-200 is engineered to host a wide variety of interchangeable keycaps (knobs). This allows a single PCB design to support different aesthetics—from round 7mm caps to large 12.5mm square buttons—simply by changing the plastic cap.

  • PCB Jumper Capability: The 4-pin layout features internal bridging between pairs (Pin 1-2 and Pin 3-4). This allows the switch to act as a “trace jumper” on the PCB, simplifying routing in complex single-layer board designs.

  • Exceptional Environmental Resistance: Rated for operation between -30°C and +85°C, the 30-200 is built for industrial environments where temperature fluctuations are common.

Physical Construction

The switch is built with high-grade materials to ensure it doesn’t “fatigue” over years of use:

  • Housing: High-temperature, flame-retardant thermoplastic.

  • Contacts: High-conductivity Phosphor Bronze, heavily Silver Plated to prevent oxidation and ensure low contact resistance (< 20mΩ).

  • Terminals: Solder-coated for excellent “wetting” during manual or wave soldering.

Common Applications

  • Electronic Weighing Scales: Used as the primary “Tare” or “Mode” buttons.

  • Medical Diagnostic Tools: Patient monitors and laboratory analysis equipment.

  • Industrial Controllers: PLC input panels and machine calibration buttons.

  • Test & Measurement: High-end multimeters, signal generators, and oscilloscopes.

  • Elevator/Signaling Panels: Internal control boards for signaling and logic input.

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