76MPSB04S DIP Switch Piano Actuator Equivalent & Substitute Parts

Part Overview

The 76MPSB04S is a 4-position DIP switch manufactured by Grayhill Inc., featuring a piano actuator with SPST (Single Pole Single Throw) circuit configuration. This component is rated for 150mA at 30VDC and is designed for through-hole, right-angle mounting applications. The part is currently classified as obsolete, making identification of functionally equivalent substitutes essential for ongoing design support and production continuity. The 76MPSB04S remains available in inventory (833 pcs), but active alternatives should be evaluated for new designs and long-term supply assurance.

Substiute Parts

76MPSB04S

Grayhill Inc.In Stock: 85476MPSB04S Datasheet

Current PartRFQ

76PSB04ST

Grayhill Inc.In Stock: 231676PSB04ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 76MPSB04S is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Circuit type (SPST), number of positions (4), current rating (150mA), and voltage rating (30VDC) must remain identical. These parameters define the functional electrical behavior within the application circuit.

Mechanical Specifications: Actuator type (piano), actuator level (raised), mounting configuration (through-hole, right-angle), pitch (0.100"/2.54mm), and height above board (0.301"/7.65mm) must match to ensure physical compatibility with PCB layouts and enclosure designs.

Material and Environmental Specifications: Contact material (copper alloy), contact finish (gold), body material (thermoplastic), operating temperature range (-40°C to 85°C), and washability must be maintained to preserve reliability and environmental performance.

Compliance and Lifecycle: RoHS3 compliance, MSL rating (1), and REACH unaffected status must be preserved for regulatory and supply chain continuity.

The 76PSB04ST meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The 76PSB04ST is a direct functional and mechanical equivalent to the 76MPSB04S. All critical electrical, mechanical, and environmental parameters are identical. The primary distinction is product lifecycle status: the 76MPSB04S is obsolete, while the 76PSB04ST is active and currently in production.

For New Designs: Use 76PSB04ST. Active product status ensures long-term availability, ongoing manufacturer support, and supply chain continuity.

For Existing Designs Using 76MPSB04S: The 76PSB04ST provides drop-in compatibility. No circuit redesign, PCB layout modification, or firmware changes are required. The components are electrically and mechanically interchangeable.

Packaging Consideration: The 76MPSB04S is supplied with tape seal packaging, while the 76PSB04ST is supplied in tube packaging. This difference affects handling and storage procedures but does not impact electrical or mechanical performance. Verify packaging requirements for your assembly process.

Compliance and Regulatory: Both parts maintain ROHS3 compliance, MSL rating 1, and REACH unaffected status. No regulatory or environmental compliance issues arise from substitution.

Frequently Asked Questions (FAQ)

Q: Can 76PSB04ST replace 76MPSB04S in existing assemblies?

A: Yes. All electrical specifications (SPST circuit, 4 positions, 150mA, 30VDC), mechanical dimensions (through-hole right-angle mounting, 0.100" pitch, 0.301" height), and material properties (copper alloy contacts with gold finish) are identical. The components are functionally and mechanically interchangeable.

Q: What is the difference between 76MPSB04S and 76PSB04ST?

A: The parts are electrically and mechanically identical. The primary difference is product status: 76MPSB04S is obsolete, while 76PSB04ST is active. Secondary difference is packaging: 76MPSB04S uses tape seal; 76PSB04ST uses tube packaging.

Q: Why is 76MPSB04S marked as obsolete?

A: Obsolescence indicates the manufacturer has discontinued active production. The 76PSB04ST serves as the active production equivalent within the same Grayhill 76 series.

Q: Are there any performance differences between these parts?

A: No. Mechanical life (2,000 cycles), electrical life (2,000 cycles), operating temperature range (-40°C to 85°C), and all electrical ratings are identical.

Q: Does packaging affect component performance?

A: No. Tape seal and tube packaging are storage and handling formats only. They do not affect electrical performance, mechanical function, or reliability. Verify packaging compatibility with your assembly equipment and procedures.

Q: Are both parts RoHS3 compliant?

A: Yes. Both 76MPSB04S and 76PSB04ST are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity level) and REACH unaffected status.

Q: Can I use 76PSB04ST in designs currently specified for 76MPSB04S?

A: Yes. No design changes are required. The 76PSB04ST is a direct substitute suitable for immediate implementation in existing designs.