Highly Reliable Environmental Adaptability Solutions

1. Core Product Positioning

The G306A series is a sealed microswitch designed specifically for harsh environments, combining three key technical advantages: long-stroke structure, customized resistor integration, and IP67 protection rating. Its unique sliding contact mechanism features a large contact design, ensuring a 200,000-cycle electrical lifespan while enabling silent operation. It is primarily used in fields such as automotive electronics, industrial automation, and smart home appliances, where weather resistance and reliability are critical.

2. Key Technical Features

Sealed and Weather-Resistant Design

The fully sealed structure is certified to IEC IP67 standards (excluding terminal areas), effectively resisting dust ingress and high-pressure water jets.

Wide temperature range support: continuous operation from -40°C to +85°C, with contact resistance change rate <5% in high-temperature environments.

Gold-plated contacts combined with an inert gas-sealed chamber significantly reduce the risk of electrochemical corrosion in humid environments.

Long-stroke mechanical structure

Operating stroke reaches 10.15mm (standard 00# handle), representing over a 40% increase compared to traditional microswitches.

Dual spring reset system ensures stable contact pressure within a linear speed range of 1–500 mm/s

Optimized lever ratio design keeps operating force between 150–200 gf, balancing tactile feedback and protection against accidental activation

Electrical performance advantages

Initial contact resistance ≤200 mΩ (terminal type), with resistance increase of no more than 15% after 100,000 cycles of life testing

Built-in resistance customization capability: Supports series connection of 1Ω to 20Ω resistors in the COM-NC/NC-NO circuit (e.g., A001 scheme)

Enhanced insulation design: Terminal-to-terminal withstand voltage AC 500V, live parts to metal housing withstand voltage AC 1000V/1 min

III. Customized Selection Guide

1. Terminal interface solutions

Welded terminals (S-type): Suitable for direct wiring scenarios, supporting customization for 22# to 29# AWG wires

PCB terminals (P/K-type):

P-type: Standard 2.54mm pitch through-hole terminals

K-type: Extended pins (5.0mm) suitable for thick PCB焊接

Directional output terminals:

E-type (bottom lead-out) saves horizontal space

G/F-type (left/right lead-out) optimizes cable routing

2. Contact Configuration Logic

Code    Type    Circuit Characteristics Description

A    SPDT    COM common terminal can switch between NO/NC connections

B    SPST-NO    Normally open type, conducts only when actuated

C    SPST-NC    Normally closed type, breaks the circuit when actuated

3. Mechanical Structure Customization

Mounting Post Configuration:

Φ2.95×1.5mm (light load)

Φ2.95×2.5mm (standard)

Φ2.95×5.0mm (impact-resistant)

No mounting post (Type A): Surface mount, height 11.2±0.3mm

With mounting pillar:

Handle selection:

00# Receiver type: Low operating force (150gf), suitable for precision control

03# Extended arm: Stroke up to 15.5mm, for deep cavity triggering

4. Reliability verification data

Lifetime testing

Mechanical lifetime: After completing 300,000 cycles at 30 cycles per minute, operating force decay <10%

Electrical life: After 200,000 cycles at 20 cycles per minute with a 0.1A load at 30VDC, contact resistance remains ≤250mΩ

Environmental adaptability

Humidity and heat test: Maintains insulation resistance >500MΩ after 500 hours in a +85°C/95%RH environment

Vibration test: No momentary disconnection occurs at 55 Hz/1.5 mm amplitude (complies with MIL-STD-202G standard)

5. Typical application scenarios

New energy vehicles

Charging gun locking mechanism: Uses SPDT contacts to achieve dual signal feedback for charging status

Battery compartment waterproof switch: IP67 protection combined with an internal 5.1 Ω resistor (A002 solution) to suppress arcing

Industrial automation

Robotic arm limit detection: 03# handle with long-stroke design to accommodate ±0.5 mm assembly tolerance

Explosion-proof cabinet access control: Certified for AC 1000 V withstand voltage, ensuring safety in hazardous areas

Smart Home

Dishwasher door control switch: High-temperature resistant (85°C) sealed structure prevents steam penetration

Washing machine water level sensor: Custom 400 mm lead wire (standard 300 mm) extends detection range.

6. Safety Performance

Withstand Voltage: Between terminals of the same polarity: AC 500V, cc. Between terminals and non-conductive metal parts: AC 1000V, 50/60Hz, 1 minute.

Insulation Resistance: Greater than or equal to 1000MΩ (DC 500V insulation resistance tester).