LY-25-1 Equivalent & Substitute Parts

Part Overview

The LY-25-1 is a magnetic reed switch manufactured by Coto Technology, designed for applications requiring contactless magnetic actuation. This component features a SPST-NO (Single Pole Single Throw - Normally Open) configuration with wire leads for direct circuit integration. The LY-25-1 is classified as an obsolete product with 945 units currently in stock. Due to its obsolete status, identifying equivalent substitute components is necessary to ensure continued availability and support for legacy systems and new designs requiring compatible alternatives.

Substiute Parts

LY-25-1

Coto TechnologyIn Stock: 1038LY-25-1 Datasheet

Current PartRFQ

MPS45WGW

C&KIn Stock: 1245MPS45WGW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LY-25-1 is determined by matching the following critical parameters:

1. Component Type: Reed Switch with magnetic actuation
2. Electrical Configuration: SPST-NO output type
3. Actuator: Magnet-based operation
4. Termination: Wire Leads connection method
5. Environmental Compliance: RoHS and REACH status alignment

The MPS45WGW substitute part from C&K meets these core substitution criteria. Both components operate as magnetic reed switches with SPST-NO switching configurations and wire lead terminations. Differences exist in packaging format (Flange Mount versus Rectangular Wire Leads), operating temperature range, and switching distance specifications, which must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: MPS45WGW (C&K)

The MPS45WGW qualifies as a direct substitute for the LY-25-1 based on functional equivalence in switching type (SPST-NO), actuation method (magnetic), and termination style (wire leads). Both components maintain equivalent compliance certifications including RoHS/ROHS3 compliance and REACH unaffected status.

Key Selection Factors:

1. Product Status: The MPS45WGW is an active product, ensuring continued manufacturer support, availability, and supply chain continuity compared to the obsolete LY-25-1.

2. Compliance Alignment: Both components satisfy RoHS and REACH regulatory requirements with identical export classification (EAR99).

3. Operational Temperature: The MPS45WGW operates across an expanded temperature range (-40°C ~ 100°C) compared to the LY-25-1 (-20°C ~ 85°C), providing broader environmental performance capability.

4. Package Configuration: Physical differences exist between the Rectangular Wire Leads package of the LY-25-1 and the Flange Mount package of the MPS45WGW. Application mechanical requirements must be assessed during integration.

5. Switching Distance Parameters: The MPS45WGW specifies Must Operate at 25.40mm and Must Release at 33.02mm. These parameters should be verified against system magnet positioning and application requirements.

Frequently Asked Questions (FAQ)

Q: Can MPS45WGW directly replace LY-25-1 in existing designs? A: Functional substitution is supported for SPST-NO magnetic switching applications. However, the packaging difference (Flange Mount versus Rectangular Wire Leads) requires mechanical re-evaluation. Switching distance specifications for MPS45WGW must be confirmed compatible with application magnet placement.

Q: What are the primary differences between these two reed switches? A: Core switching functionality (SPST-NO, magnetic actuation, wire leads) is equivalent. Differences include package format, operating temperature range (MPS45WGW covers -40°C to 100°C versus LY-25-1's -20°C to 85°C), and specified switching distances (25.40mm operate, 33.02mm release for MPS45WGW).

Q: Is compliance documentation equivalent between LY-25-1 and MPS45WGW? A: Both components maintain equivalent regulatory compliance with RoHS certification (LY-25-1 RoHS Compliant, MPS45WGW ROHS3 Compliant), REACH unaffected status, and EAR99 export classification.

Q: How does packaging affect component selection? A: LY-25-1 uses Rectangular Wire Leads packaging, while MPS45WGW uses Flange Mount configuration. Application mechanical constraints, PCB layout, and magnet positioning requirements must be evaluated to ensure physical compatibility.

Q: What should be assessed before implementing MPS45WGW as a substitute? A: Verify mechanical clearance for Flange Mount package integration, confirm magnetic field strength compatibility with specified 25.40mm operating distance, and validate application temperature requirements within the -40°C to 100°C MPS45WGW operating range.

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