76MPSB12S DIP Switch Piano Actuator Equivalent & Substitute Parts

Part Overview

The 76MPSB12S is a 12-position DIP switch manufactured by Grayhill Inc., featuring a piano actuator mechanism 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, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

76MPSB12S

Grayhill Inc.In Stock: 83276MPSB12S Datasheet

Current PartRFQ

76PSB12ST

Grayhill Inc.In Stock: 576876PSB12ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 76MPSB12S is based on strict electrical and mechanical parameter matching within the Grayhill 76 series DIP switch family. The primary substitute, 76PSB12ST, maintains identical specifications across all critical functional parameters: 12-position SPST configuration, 150mA/30VDC electrical ratings, piano actuator mechanism, through-hole right-angle mounting, 0.100" pitch, and gold-plated copper alloy contacts. Both parts operate within the same temperature range (-40°C to 85°C) and deliver equivalent mechanical and electrical life cycles (2,000 cycles each).

The substitution is valid based on the following key parameters:

• Identical circuit topology (SPST, 12 positions)
• Matching electrical ratings (150mA, 30VDC)
• Identical physical form factor (height, pitch, mounting orientation)
• Equivalent contact material and finish specifications
• Identical operating temperature and lifecycle ratings
• Equivalent compliance certifications (ROHS3, REACH Unaffected)

The only difference between these parts is packaging format and product status: 76MPSB12S is supplied in tape seal packaging and is obsolete, while 76PSB12ST is supplied in tube packaging and maintains active product status.

Parameter Comparison

Engineering Selection Recommendations

The 76PSB12ST is a direct functional equivalent to the 76MPSB12S and is suitable for substitution in all applications where the original part was specified. The substitute maintains active product status with Grayhill Inc., ensuring continued availability and supply chain stability. Both parts carry identical compliance certifications: ROHS3 compliance and REACH unaffected status, confirming regulatory equivalence for applications subject to environmental and hazardous substance restrictions.

The primary distinction between these parts is packaging format: the original 76MPSB12S uses tape seal packaging, while the 76PSB12ST is supplied in tube packaging. This packaging difference does not affect electrical performance, mechanical compatibility, or functional characteristics. Selection between these parts should be based on packaging requirements and inventory availability rather than technical performance criteria.

For new designs and production applications, the 76PSB12ST is the recommended choice due to its active product status, which ensures long-term availability and manufacturer support. For legacy system repairs or applications where existing inventory of 76MPSB12S remains available, continued use of the original part is technically valid until depletion.

Frequently Asked Questions (FAQ)

Q: Can the 76PSB12ST be used as a direct replacement for the 76MPSB12S in existing circuit board designs?

A: Yes. The 76PSB12ST is a direct functional equivalent with identical electrical ratings (150mA, 30VDC), circuit configuration (SPST, 12 positions), physical dimensions, mounting specifications, and contact materials. No circuit modifications or board redesign is required.

Q: What is the difference between tape seal and tube packaging for these DIP switches?

A: Tape seal packaging uses adhesive-backed carrier tape for automated pick-and-place assembly, while tube packaging uses a plastic tube for manual or bulk handling. Both packaging formats contain identical components with no functional differences. Packaging selection depends on assembly process requirements and handling procedures.

Q: Are the operating temperature ranges identical between these parts?

A: Yes. Both the 76MPSB12S and 76PSB12ST operate across the identical temperature range of -40°C to 85°C, ensuring equivalent thermal performance in all environmental conditions.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, confirming equivalent regulatory status for applications subject to environmental and hazardous substance restrictions.

Q: What is the mechanical and electrical life expectancy for these switches?

A: Both parts are rated for 2,000 mechanical cycles and 2,000 electrical cycles, providing identical operational lifespan under specified conditions.

Q: Why is the 76MPSB12S classified as obsolete if the 76PSB12ST is functionally identical?

A: Product status reflects manufacturer production and support decisions rather than technical performance. The 76PSB12ST maintains active status, ensuring continued availability and manufacturer support. The 76MPSB12S remains technically valid but is no longer actively manufactured or supported by Grayhill Inc.

Q: Are there any restrictions on using the 76PSB12ST in applications originally designed for the 76MPSB12S?

A: No restrictions exist. All electrical, mechanical, and environmental specifications are identical. The substitute is suitable for all applications where the original part was specified.