Grayhill 76PSB09T DIP Switch Equivalent & Substitute Parts

Part Overview

The Grayhill 76PSB09T is a 9-position DIP switch with SPST (Single Pole Single Throw) circuit configuration, rated for 150mA at 30VDC. This component features a piano-style actuator with raised level, through-hole right-angle mounting, and gold-plated copper alloy contacts. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

76PSB09T

Grayhill Inc.In Stock: 111276PSB09T Datasheet

Current PartRFQ

76PSB10T

Grayhill Inc.In Stock: 446076PSB10T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76PSB09T is determined by the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Grayhill Inc. (Series 76 family)
• Circuit Configuration: SPST
• Current Rating: 150mA minimum
• Voltage Rating: 30VDC minimum
• Actuator Type: Piano with raised level
• Mounting Configuration: Through hole, right angle
• Pitch: 0.100" (2.54mm)
• Contact Material and Finish: Copper alloy with gold plating
• Operating Temperature Range: -40°C to 85°C
• Termination Style: PC Pin

Variable Parameters Allowing Substitution:

• Number of Positions: The 76PSB09T (9-position) may be substituted with higher position-count variants within the same series, provided all other electrical and mechanical parameters remain constant. A higher position count does not compromise functionality in applications requiring fewer positions.

The Grayhill 76PSB10T qualifies as a direct substitute based on this logic.

Parameter Comparison

Engineering Selection Recommendations

The Grayhill 76PSB10T is the qualified substitute for the obsolete 76PSB09T based on the following factors:

Product Status Consideration: The 76PSB09T is classified as obsolete, while the 76PSB10T maintains active production status with significantly higher inventory availability (4,424 units in stock versus 1,086 units for the main part). This ensures long-term procurement viability.

Compliance Enhancement: The 76PSB10T carries ROHS3 compliance certification, representing an advancement over the RoHS Compliant designation of the 76PSB09T. This provides improved environmental and regulatory alignment for new designs and ongoing production.

Electrical and Mechanical Equivalence: All critical electrical parameters (current rating, voltage rating, circuit configuration) and mechanical specifications (actuator type, mounting configuration, pitch, contact materials) are identical between the two parts. The 2,000-cycle mechanical and electrical life ratings are equivalent.

Position Count Consideration: The 10-position configuration of the 76PSB10T accommodates applications requiring 9 positions without functional compromise. The additional position provides design flexibility for future modifications without requiring component substitution.

Dimensional Compatibility: The length difference of 0.100" (2.54mm) between the two parts reflects the single additional switch position. This dimensional change must be evaluated within the context of specific PCB layout constraints. The identical pitch, height above board, and mounting configuration ensure compatibility with standard through-hole footprints designed for the 76 series.

Frequently Asked Questions (FAQ)

Q: Can the 76PSB10T directly replace the 76PSB09T in existing designs?

A: The 76PSB10T is electrically and mechanically equivalent to the 76PSB09T for all critical parameters. The primary consideration is the 0.100" (2.54mm) length increase due to the additional switch position. PCB layout must accommodate this dimensional change. If the original design has spatial constraints that cannot tolerate the increased length, physical compatibility must be verified before implementation.

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

A: The 76PSB09T provides 9 independent switch positions, while the 76PSB10T provides 10 positions. In applications utilizing fewer than 10 positions, the additional position in the 76PSB10T remains unused without affecting circuit performance. The electrical and mechanical characteristics of each individual position are identical between the two parts.

Q: Are there any compliance differences between these parts?

A: The 76PSB09T carries RoHS Compliant certification, while the 76PSB10T carries ROHS3 Compliant certification. ROHS3 represents an updated compliance standard. Both parts are REACH Unaffected and carry EAR99 ECCN classification. The 76PSB10T's enhanced compliance status is advantageous for new designs and long-term regulatory alignment.

Q: What packaging differences exist between the main part and substitute?

A: The 76PSB09T is supplied with standard packaging (indicated as "-" in the specification), while the 76PSB10T is supplied in tube packaging. Tube packaging is standard for active production components and facilitates automated assembly processes. This packaging difference does not affect component functionality or electrical performance.

Q: How do the mechanical and electrical life ratings compare?

A: Both the 76PSB09T and 76PSB10T are rated for 2,000 mechanical cycles and 2,000 electrical cycles. These ratings are identical and indicate equivalent durability and operational lifespan under specified conditions.

Q: Is the pitch and mounting configuration identical?

A: Yes. Both parts feature 0.100" (2.54mm) pitch spacing, through-hole right-angle mounting, and PC pin termination style. The identical mounting configuration ensures compatibility with standard DIP switch footprints designed for the Grayhill 76 series.

Q: What is the contact material specification for both parts?

A: Both the 76PSB09T and 76PSB10T utilize copper alloy contacts with gold plating. This contact material and finish specification is identical between the two parts, ensuring equivalent electrical performance and contact reliability.