Grayhill 76MSB04S DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 76MSB04S is a 4-position DIP switch with rocker actuator, rated for 150mA at 30VDC, designed for through-hole PCB mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support, design updates, and inventory management. The substitute part 76SB04ST provides electrical and mechanical equivalence while maintaining active product status.

Substiute Parts

76MSB04S

Grayhill Inc.In Stock: 88776MSB04S Datasheet

Current PartRFQ

76SB04ST

Grayhill Inc.In Stock: 77176SB04ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 76MSB04S with the 76SB04ST is based on strict electrical and mechanical parameter equivalence. Both components share identical specifications across all critical selection criteria:

Electrical Parameters (Must Match):

• Circuit type: SPST
• Current rating: 150mA
• Voltage rating: 30VDC
• Contact material and finish: Copper alloy with gold plating

Mechanical Parameters (Must Match):

• Number of positions: 4
• Actuator type: Rocker with raised level
• Mounting method: Through-hole PCB
• Pitch spacing: 0.100" (2.54mm)
• Height above board: 0.315" (8.00mm)
• Termination style: PC pin

Environmental & Reliability Parameters (Must Match):

• Operating temperature: -40°C to +85°C
• Mechanical life: 2,000 cycles
• Electrical life: 2,000 cycles
• Moisture sensitivity level: 1 (Unlimited)

The primary distinction between these parts is product status and packaging format, not functional capability.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Production Continuity:

The 76SB04ST is the appropriate selection for applications currently using or specifying the 76MSB04S. The substitute part maintains active product status with Grayhill Inc., ensuring long-term availability and supply chain stability. All electrical performance characteristics, mechanical dimensions, and environmental ratings are identical between the two components.

Compliance Considerations:

Both parts carry ROHS3 compliance certification and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution. No compliance barriers exist for substitution.

Packaging Difference:

The primary distinction is packaging format: the 76MSB04S ships in tape seal packaging, while the 76SB04ST is supplied in tube packaging. This difference does not affect component functionality or PCB mounting compatibility. Packaging selection should be based on assembly process requirements and inventory management practices.

Supply Chain Impact:

Given the obsolete status of the 76MSB04S, transition to the 76SB04ST is recommended for all new production orders, design revisions, and long-term inventory planning to avoid future supply discontinuation.

Frequently Asked Questions (FAQ)

Q: Can the 76SB04ST be used as a direct replacement for the 76MSB04S in existing PCB designs?

A: Yes. The 76SB04ST is electrically and mechanically equivalent to the 76MSB04S. All critical parameters including circuit configuration, current and voltage ratings, actuator type, mounting dimensions, pitch spacing, and height above board are identical. No PCB layout modifications are required.

Q: What is the difference between the tape seal and tube packaging?

A: Tape seal packaging uses adhesive-backed carrier tape for automated pick-and-place assembly systems. Tube packaging uses a plastic tube container for manual or bulk handling. Both contain the same component. Packaging selection depends on assembly equipment compatibility and handling procedures.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are rated for 150mA at 30VDC with SPST circuit configuration, 2,000 mechanical and electrical cycles, and identical contact material and finish specifications. Electrical performance is equivalent.

Q: Why is the 76MSB04S listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this part number. The 76SB04ST represents the current active equivalent in the Grayhill 76 series DIP switch product line.

Q: Do both parts meet current regulatory compliance requirements?

A: Yes. Both the 76MSB04S and 76SB04ST carry ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory standards for electronic components.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to +85°C, providing equivalent thermal performance for industrial and commercial applications.

Q: Are there any mechanical life or reliability differences?

A: No. Both parts specify 2,000 mechanical cycles and 2,000 electrical cycles with identical moisture sensitivity level (MSL 1, Unlimited), ensuring equivalent reliability performance.