Equivalent & Substitute Parts for 76PRB09ST

Part Overview

The 76PRB09ST is a 9-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, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement planning. The 76PRB series remains in active production with compatible variants available.

Substiute Parts

76PRB09ST

Grayhill Inc.In Stock: 100776PRB09ST Datasheet

Current PartRFQ

76PRB10ST

Grayhill Inc.In Stock: 78276PRB10ST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 76PRB09ST is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Circuit type: SPST
• Current rating: 150mA minimum
• Voltage rating: 30VDC minimum

Mechanical Parameters (Non-Negotiable):

• Actuator type: Piano configuration
• Mounting: Through hole, right angle orientation
• Pitch: 0.100" (2.54mm) standard spacing
• Contact material and finish: Copper alloy with gold plating

Environmental Parameters:

• Operating temperature range: -40°C to 85°C
• Mechanical and electrical life: 2,000 cycles minimum

The 76PRB10ST qualifies as a substitute based on identical electrical ratings, actuator configuration, mounting style, pitch, contact materials, and environmental specifications. The primary difference is the number of positions (10 versus 9), which represents a functional expansion rather than a compatibility limitation in applications where additional switch positions are acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The 76PRB10ST is the qualified substitute for the 76PRB09ST. Both components share identical electrical performance specifications (150mA, 30VDC, SPST), mechanical configuration (piano actuator, through-hole right-angle mounting, 0.100" pitch), and environmental operating parameters (-40°C to 85°C, 2,000-cycle life).

Procurement Advantage:

The 76PRB10ST holds active product status with documented inventory availability (704 units), whereas the 76PRB09ST is obsolete. Selection of the 76PRB10ST ensures long-term supply chain continuity and compliance with current RoHS3 standards.

Design Consideration:

The 76PRB10ST provides one additional switch position and measures 0.100" (2.54mm) longer than the 76PRB09ST. PCB layout must accommodate the increased length of 1.080" (27.43mm) versus 0.980" (24.89mm). Applications requiring exactly 9 positions must evaluate whether the additional 10th position creates functional or design conflicts.

Compliance Status:

Both parts are RoHS compliant and REACH unaffected. The 76PRB10ST carries enhanced ROHS3 certification, meeting current regulatory requirements for new designs and procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can the 76PRB10ST replace the 76PRB09ST in existing designs?

A: Yes, provided the PCB layout accommodates the increased component length (1.080" versus 0.980"). All electrical and mechanical interface parameters are identical. The additional 10th position does not create incompatibility; it expands functional capability.

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

A: The 76PRB09ST provides 9 independent switch positions; the 76PRB10ST provides 10. In applications using all 9 positions of the original design, the 10th position on the substitute remains unused. No electrical or mechanical conflict results from this difference.

Q: Are there any compliance differences between these parts?

A: The 76PRB09ST is RoHS compliant. The 76PRB10ST is ROHS3 compliant, representing enhanced regulatory alignment. Both are REACH unaffected. For new designs and procurement, the 76PRB10ST meets current compliance requirements.

Q: What is the impact of the length difference on PCB design?

A: The 76PRB10ST is 0.100" (2.54mm) longer than the 76PRB09ST. PCB footprints must be verified to ensure adequate clearance. If the original design has minimal spacing constraints, layout modification may be required.

Q: Is the 76PRB10ST available for immediate procurement?

A: Yes. The 76PRB10ST is in active production status with 704 units in current inventory, compared to the obsolete 76PRB09ST. This ensures supply chain reliability for new orders and ongoing production.

Q: Are the electrical ratings identical between these parts?

A: Yes. Both components are rated for 150mA at 30VDC with SPST circuit configuration. Contact material (copper alloy with gold finish), operating temperature range (-40°C to 85°C), and mechanical/electrical life (2,000 cycles) are identical.

Q: What packaging is available for the 76PRB10ST?

A: The 76PRB10ST is supplied in tube packaging, suitable for automated assembly and standard component handling procedures.