Equivalent & Substitute Parts for Grayhill 76RSC03ST DIP Switch

Part Overview

The Grayhill 76RSC03ST is a rocker-actuated DIP switch featuring SPDT (Single Pole Double Throw) circuit configuration with 3 positions. This component is rated for 150mA at 30VDC and is designed for through-hole mounting applications. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement planning.

Substiute Parts

76RSC03ST

Grayhill Inc.In Stock: 103476RSC03ST Datasheet

Current PartRFQ

76RSC04ST

Grayhill Inc.In Stock: 110176RSC04ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76RSC03ST is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration (SPDT)
• Current rating (150mA)
• Voltage rating (30VDC)
• Actuator type (Rocker)
• Mounting type (Through Hole)
• Pitch (0.100" / 2.54mm)
• Height above board (0.267" / 6.78mm)
• Contact material (Copper Alloy)
• Contact finish (Gold)
• Operating temperature range (-40°C to 85°C)
• Mechanical and electrical life (2,000 Cycles)

Allowable Variation Parameters:

• Number of positions (3 vs. 4)
• Overall length
• Packaging format
• Product status (Obsolete vs. Active)

The 76RSC04ST qualifies as a substitute based on matching all mandatory parameters. The primary difference is the number of positions (4 vs. 3) and corresponding length adjustment, which does not affect electrical or mechanical compatibility in applications requiring SPDT functionality.

Parameter Comparison

Engineering Selection Recommendations

The 76RSC04ST is the qualified substitute for the obsolete 76RSC03ST based on electrical and mechanical parameter equivalence. Both components share identical electrical ratings (150mA, 30VDC), circuit configuration (SPDT), actuator characteristics, and mounting specifications.

Compliance Considerations:

• The 76RSC03ST carries RoHS Compliant certification
• The 76RSC04ST carries ROHS3 Compliant certification, representing enhanced compliance status
• Both components are REACH Unaffected and classified under ECCN EAR99

Availability and Status:

• The 76RSC03ST is obsolete with limited remaining inventory (980 Pcs)
• The 76RSC04ST is active production with current inventory (1,020 Pcs)

Physical Accommodation: The 76RSC04ST is 0.200" (5.08mm) longer than the 76RSC03ST due to the additional position. PCB layout verification is required to confirm adequate clearance in the component mounting area.

Frequently Asked Questions (FAQ)

Q: Can the 76RSC04ST directly replace the 76RSC03ST in existing designs?

A: Electrical and mechanical compatibility is confirmed across all critical parameters. Physical board space must accommodate the increased length (0.780" vs. 0.580"). Functional verification is required if the application uses position-specific switching logic.

Q: What is the significance of the position count difference?

A: The 76RSC03ST provides 3 selectable positions; the 76RSC04ST provides 4 selectable positions. Both maintain identical SPDT circuit behavior. The additional position does not affect electrical performance in applications utilizing only 3 positions.

Q: Are there packaging differences between these parts?

A: The 76RSC03ST is packaged with tape seal; the 76RSC04ST is supplied in tube packaging. Both use identical PC pin termination and pitch specifications.

Q: How do the RoHS certifications differ?

A: The 76RSC03ST holds RoHS Compliant status; the 76RSC04ST holds ROHS3 Compliant status. ROHS3 represents current regulatory compliance. Both are acceptable for RoHS-regulated applications.

Q: What is the impact of the obsolete status of the 76RSC03ST?

A: Obsolete status indicates discontinued production. The 76RSC04ST is in active production, ensuring long-term availability and supply chain stability for new designs and ongoing procurement.

Q: Are the electrical life and mechanical life ratings identical?

A: Yes. Both components are rated for 2,000 mechanical cycles and 2,000 electrical cycles, indicating equivalent operational durability.

Q: What mounting considerations apply to both parts?

A: Both components use through-hole mounting with 0.100" (2.54mm) pitch and identical height above board (0.267" / 6.78mm). Standard PCB hole sizing and spacing apply to both.