M83504/12-003 Equivalent & Substitute Parts Reference

Part Overview

The M83504/12-003 is a DIP slide switch manufactured by Grayhill Inc., configured as a single-pole single-throw (SPST) device with three positions. This switch is rated for 25mA at 24VDC and features a through-hole mounting design with gold-plated copper alloy contacts. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

M83504/12-003

Grayhill Inc.In Stock: 985M83504/12-003 Datasheet

Current PartRFQ

90B03ST

Grayhill Inc.In Stock: 561690B03ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M83504/12-003 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Circuit configuration (SPST)
• Number of positions (3)
• Current rating (25mA)
• Voltage rating (24VDC)
• Contact material and finish (Copper Alloy, Gold)

Mechanical Compatibility Parameters:

• Actuator type (Slide, Standard)
• Mounting type (Through Hole)
• Pitch spacing (0.100" / 2.54mm)
• Height above board (0.195" / 4.95mm)
• Operating temperature range (-40°C to 85°C)
• Mechanical and electrical life ratings (2,000 Cycles)

The substitute part 90B03ST maintains identical electrical and mechanical specifications while offering improved product status and regulatory compliance. Both parts belong to the Grayhill 90B series and share the same base design architecture.

Parameter Comparison

Engineering Selection Recommendations

The 90B03ST serves as the direct functional equivalent to the M83504/12-003 across all electrical and mechanical parameters. Selection between these parts is determined by product lifecycle and regulatory requirements:

For M83504/12-003 (Obsolete Status): This part number is no longer in active production. Existing inventory of 946 pieces is available for immediate use in legacy system maintenance or field replacements where the specific part number is required for documentation purposes.

For 90B03ST (Active Status): This part is the recommended selection for new designs, production runs, and long-term component sourcing. The 90B03ST maintains full electrical and mechanical compatibility while offering:

• Active product status with ongoing manufacturer support
• ROHS3 compliance, meeting current environmental regulations
• Higher inventory availability (5,540 pieces in stock)
• Tube packaging suitable for automated assembly processes

Both parts share identical electrical performance, mechanical dimensions, and environmental specifications. The choice between them depends on project requirements for product status, regulatory compliance, and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 90B03ST be used as a direct replacement for M83504/12-003 in existing designs?

A: Yes. The 90B03ST is electrically and mechanically identical to the M83504/12-003. All electrical parameters (25mA, 24VDC, SPST, 3-position), mechanical dimensions (0.195" height, 0.100" pitch, through-hole mounting), and environmental specifications (-40°C to 85°C operating range) are equivalent. No circuit modifications or PCB layout changes are required.

Q: What is the difference between M83504/12-003 and 90B03ST?

A: The primary differences are product status and regulatory compliance. M83504/12-003 is obsolete and RoHS non-compliant, while 90B03ST is an active product with ROHS3 compliance. Functionally and mechanically, both parts are identical.

Q: Why should I transition from M83504/12-003 to 90B03ST?

A: The M83504/12-003 is obsolete and no longer manufactured. Transitioning to 90B03ST ensures long-term component availability, compliance with current environmental regulations (ROHS3), and access to manufacturer technical support. The 90B03ST also has significantly higher inventory levels.

Q: Are there any packaging differences between these parts?

A: Yes. The M83504/12-003 uses standard packaging, while the 90B03ST is supplied in tube packaging. Tube packaging is optimized for automated assembly processes and provides better protection during handling and storage.

Q: Will the 90B03ST work in applications originally designed for M83504/12-003?

A: Yes. The 90B03ST is fully compatible with all applications designed for the M83504/12-003. Identical electrical ratings (25mA, 24VDC), circuit configuration (SPST), mechanical dimensions, and environmental specifications ensure drop-in compatibility without design modifications.

Q: What is the mechanical life expectancy of the 90B03ST?

A: The 90B03ST has a mechanical life rating of 2,000 cycles, identical to the M83504/12-003. This specification applies to the slide actuator mechanism under normal operating conditions within the specified temperature range.

Q: Are both parts suitable for washable applications?

A: Yes. Both the M83504/12-003 and 90B03ST are rated as washable and feature tape seal protection, making them suitable for applications requiring cleaning or exposure to moisture.