Grayhill 76RSB09LT DIP Switch Rocker SPST Equivalent & Substitute Parts

Part Overview

The Grayhill 76RSB09LT is a 9-position DIP switch with rocker actuator, rated for 150mA at 30VDC, designed for through-hole mounting applications. This component features a flush, recessed rocker actuator with gold-plated copper alloy contacts and position identification markings. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives from the active product line to ensure design continuity and procurement availability.

Substiute Parts

76RSB09LT

Grayhill Inc.In Stock: 103276RSB09LT Datasheet

Current PartRFQ

76RSB10LT

Grayhill Inc.In Stock: 109976RSB10LT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76RSB09LT is determined by the following critical parameters that must remain constant across equivalent parts:

Mandatory Matching Parameters:

• Manufacturer: Grayhill Inc.
• Series: 76
• Circuit Configuration: SPST
• Current Rating: 150mA
• Voltage Rating: 30VDC
• Actuator Type: Rocker
• Actuator Level: Flush, Recessed
• Contact Material: Copper Alloy with Gold Finish
• Mounting Type: Through Hole
• Pitch: 0.100" (2.54mm)
• Operating Temperature Range: -40°C to 85°C
• Mechanical Life: 2,000 Cycles
• Electrical Life: 2,000 Cycles

Variable Parameters Allowing Substitution:

• Number of Positions: The 76RSB09LT (9 positions) can be substituted with parts having different position counts within the same series, provided all other electrical and mechanical parameters remain identical. Position count variation affects board layout and physical dimensions but does not alter electrical performance characteristics.

The Grayhill 76RSB10LT qualifies as a substitute based on matching all mandatory parameters while differing only in position count (10 vs. 9) and resulting length dimension.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Grayhill 76RSB10LT

The 76RSB10LT is the recommended substitute for the obsolete 76RSB09LT based on the following engineering criteria:

1. Electrical Equivalence: All electrical parameters are identical, including current rating (150mA), voltage rating (30VDC), contact material (copper alloy with gold finish), and operating temperature range (-40°C to 85°C). The SPST circuit configuration and mechanical/electrical life ratings (2,000 cycles each) are preserved.

2. Mechanical Compatibility: The actuator type (rocker), actuator level (flush, recessed), mounting method (through hole), and pitch spacing (0.100"/2.54mm) are identical. Height above board (0.292"/7.41mm) remains constant.

3. Product Status Advantage: The 76RSB10LT holds active product status with confirmed inventory availability (1,008 pieces), whereas the 76RSB09LT is obsolete. This ensures long-term procurement viability and supply chain continuity.

4. Regulatory Compliance: Both parts maintain RoHS compliance, MSL Level 1 (unlimited moisture sensitivity), and identical ECCN/HTSUS classifications, ensuring no regulatory complications in substitution.

5. Design Consideration: The primary design difference is the increased position count (10 vs. 9) and resulting length increase (1.080" vs. 0.980", or 27.43mm vs. 24.89mm). PCB layout must accommodate the additional 0.100" (2.54mm) length dimension. This dimensional change does not affect electrical performance or functional compatibility within the circuit.

Frequently Asked Questions (FAQ)

Q: Can the 76RSB10LT directly replace the 76RSB09LT in existing designs?

A: Electrical and functional replacement is direct. The 76RSB10LT provides identical electrical performance and mechanical interface characteristics. However, PCB layout must be verified to accommodate the increased length (0.100" longer). If board space is constrained, physical redesign may be required.

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

A: Position count (9 vs. 10) determines the number of independent switch settings available. The 76RSB10LT provides one additional configuration position. This affects only the application's configuration flexibility, not the electrical or mechanical performance of individual switch elements.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical RoHS compliance status, MSL Level 1 rating, and regulatory classifications (ECCN: EAR99, HTSUS: 8536.50.9065). Substitution introduces no compliance complications.

Q: Why is the 76RSB09LT classified as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The 76RSB10LT represents the active equivalent within the Grayhill 76 series, ensuring continued availability and support.

Q: What are the critical parameters that must match for substitution?

A: Substitution requires matching of manufacturer (Grayhill Inc.), series (76), circuit type (SPST), current rating (150mA), voltage rating (30VDC), actuator type and level (rocker, flush/recessed), contact material and finish (copper alloy, gold), mounting type (through hole), pitch (0.100"/2.54mm), and operating temperature range (-40°C to 85°C). Position count and resulting length are the only allowable variables.

Q: Is testing required before substitution?

A: Substitution decisions should be based on the parameter equivalence documented in this reference. Verification of PCB layout accommodation for the dimensional change is an engineering design requirement, not a testing requirement.