Overall Structure & Series Overview

The documents appear to be excerpts from a Tyco Electronics catalog detailing various DIP (Dual In-line Package) switches. The focus is on different series offering varying pitch, profile, and electrical characteristics. The catalog pages span across A1 to A6, referencing part numbers, dimensions, electrical specs, and materials for different DIP switch models.

1. GDH Series (Half Pitch .050" Terminal Spacing)

️· Description: GDH series are half-pitch DIP switches with .050" terminal spacing.
️· Part Numbers: The documentation lists several part numbers, with the general format `1-1437590-X` or `2-1437590-X` for Tyco and `2-1437590-X` for Alcoswitch. They vary based on the number of poles (2, 3, 4, 6, 8, 6, 8, 10).
️· Dimensions: The length of the switch varies based on the number of poles. The document provides dimensions and references "Dim. M." (likely a dimension related to the switch's length or spacing).
️· Electrical Specs (Typical Performance Characteristics):
- Non-switching current rating: 100 mA @ 50 VDC
- Switching current rating: 25 mA @ 24 VDC
- Contact resistance: 100 milliohms max.
- Insulation resistance: 100 Megohms min. @ 100 VDC
- Dielectric strength: 300 VAC, 1 minute
- Actuation force: 60-600 grams max.
- Life expectancy: 1,000 cycles min.

2. MGDH Series (Half Pitch .050" Terminal Spacing, .067" High)

️· Description: MGDH series are half-pitch DIP switches with .050" terminal spacing and a lower profile (.067" high).
️· Part Numbers: Document lists part numbers in the `7-1437590-X` format.
️· Dimensions: Provides dimensions with tolerances. References "STROKE" and ".022 TYP.".
️· Material Specifications:
- Contacts: Copper alloy, gold-plated over nickel.
- Case Material: UL 94V-0 rated.
- Actuator Material: High-temperature polyester.
️· Electrical Specifications: Similar to GDH series (refer to GDH specs).

Key Differences Between GDH and MGDH:

️· Height: MGDH is specifically designed to be a lower-profile switch (.067" high) compared to the GDH.
️· Part Numbering: Different prefix in the part numbers.
️· Materials: Detail about materials is mentioned in MGDH specification.



Additional Notes

️· Alcoswitch: The documents reference Alcoswitch as an alternative manufacturer/supplier for some of the GDH models.
️· Tolerances: Dimensions are provided with tolerances (e.g., "+/- 0.020") indicating acceptable variations in manufacturing.
️· Catalog Excerpts: These are likely excerpts from a larger catalog, so not all aspects of the DIP switches are detailed.
️· Catalog Date: Document states the catalog was issued in 2004.