1. Product Overview & Purpose

️· Product: D2S Subminiature Basic Switch - a small, versatile switch designed for a variety of applications.
️· Document Purpose: This document provides technical specifications, dimensions, operating characteristics, cautions for correct use, and application guidelines. It’s essentially a comprehensive reference guide.
️· Important Disclaimer: The document stresses that application examples are for reference only and that users must verify equipment functions and safety before use. It also explicitly warns against using the document for direct operation.

2. Key Features & Variations

️· Multiple Lever Types: The switch comes in several lever configurations:
- Hinge roller lever
- Hinge lever
- Stainless-steel lever
- Polyacetal resin roller
️· Operating Force & Release Force: Specified in Newtons (N) and kilograms force (kgf·cm).
️· Overtravel: Defined distance for proper function.
️· Movement Differential: Defines the amount the lever can move before the contacts engage.
️· Free Position (FP): Specifies the position for free movement.
️· Operating Position (OP): Defines the activation point.

3. Technical Specifications & Performance

️· Operating Range for Micro Loads: The document provides a range of current (mA) values for both Micro Load and Normal Load types.
️· Reliability Considerations: A specific reliability level (60% or λ 60) is stated, indicating the estimated malfunction rate, linked to the minimum applicable load.
️· Operating Characteristics: Listed for different models (D2S-01, D2S-5, D2S-10).

4. Usage Precautions & Correct Use

️· Soldering: Recommendations for soldering temperature, duration, and avoiding solder flow onto the switch body.
️· Mounting: Instructions for secure mounting with proper screw torque (0.23-0.26 N·m).
️· Micro Load Usage: Strong warning against using the switch inappropriately for micro loads and the need for contact protection circuits.

5. Dimensions & Drawings

️· Detailed dimensional diagrams are included showing the physical specifications of each lever type.
️· Various operating characteristics are presented with numerical data.

6. Important Warnings & Disclaimers

️· Safety: A crucial disclaimer emphasizes the importance of verifying functions and safety in real-world applications.
️· Critical Systems: A very strong warning is given against using the switch in safety-critical systems (nuclear, railroad, aviation, medical, etc.) without a thorough safety assessment and margin of safety. Double safety mechanisms are strongly recommended.
️· OMRON Contact: A link is provided for contacting OMRON.

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