Grayhill 61R32 Rotary Encoder Optical 32PPR - Equivalent & Substitute Parts

Part Overview

The Grayhill 61R32 is an optical rotary encoder with 32 pulses per revolution (PPR), providing quadrature (incremental) output. This vertical-orientation encoder is designed for panel and PCB through-hole mounting applications requiring precise rotational position feedback. The part is currently in active production status with 909 units in stock. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

61R32

Grayhill Inc.In Stock: 99161R32 Datasheet

Current PartRFQ

EM14A0D-C24-L032N

Bourns Inc.In Stock: 1184EM14A0D-C24-L032N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Grayhill 61R32 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Encoder Type: Optical
• Output Type: Quadrature (Incremental)
• Pulses per Revolution: 32 PPR
• Supply Voltage: 5V
• Actuator Type: 1/4" Dia Flatted End
• Mounting Type: Panel, PCB Through Hole
• Orientation: Vertical
• Termination Style: PC Pin
• Detent: No
• Built-in Switch: No

The Bourns EM14A0D-C24-L032N meets all mandatory matching parameters and is classified as a direct substitute. Both parts share identical functional specifications for encoder operation, electrical interface, mechanical mounting, and actuator configuration. Differences in rotational life rating and compliance certifications do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (Grayhill 61R32): Select the Grayhill 61R32 for applications requiring extended rotational life specifications. This part is rated for 10 million cycles minimum and carries RoHS Compliant certification with REACH Unaffected status, suitable for applications with stringent environmental compliance requirements and extended operational life expectations.

Substitute Part Selection (Bourns EM14A0D-C24-L032N): The Bourns EM14A0D-C24-L032N is functionally equivalent and suitable for direct substitution in applications where the rotational life requirement is 1 million cycles or less. This part carries ROHS3 Compliant certification and is REACH Affected, requiring compliance verification for specific end-use applications. Both parts are in active production status, ensuring continued availability.

Compliance Considerations: Both parts meet the ECCN EAR99 classification and share the same HTSUS code (8543.70.4500). Selection between these parts should account for regional regulatory requirements, particularly regarding REACH compliance obligations in European markets.

Frequently Asked Questions (FAQ)

Q: Can the Bourns EM14A0D-C24-L032N replace the Grayhill 61R32 in all applications?

A: The Bourns part is functionally equivalent for applications requiring up to 1 million rotational cycles. Applications requiring 10 million cycle durability must use the Grayhill 61R32. Verify rotational life requirements in your application specifications before substitution.

Q: What is the difference in rotational life between these two encoders?

A: The Grayhill 61R32 is rated for 10 million cycles minimum, while the Bourns EM14A0D-C24-L032N is rated for 1 million cycles minimum. This represents a tenfold difference in specified operational life. Select based on your application's expected number of rotational cycles.

Q: Are there packaging differences between these parts?

A: The Grayhill 61R32 is supplied in standard packaging, while the Bourns EM14A0D-C24-L032N is supplied in bulk packaging. Both parts use identical PC Pin termination and mounting configurations. Verify packaging requirements for your assembly process.

Q: What is the significance of REACH Affected versus REACH Unaffected status?

A: REACH Unaffected status (Grayhill 61R32) indicates the part is not subject to REACH substance restrictions. REACH Affected status (Bourns EM14A0D-C24-L032N) requires compliance verification with REACH regulations, particularly for applications in European Union markets. Consult regional regulatory requirements for your end application.

Q: Are both parts currently available?

A: Yes. The Grayhill 61R32 has 909 units in stock, and the Bourns EM14A0D-C24-L032N has 1081 units in stock. Both parts are in active production status.

Q: Do these encoders require any special handling or moisture protection?

A: The Grayhill 61R32 carries Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions. The Bourns part lists MSL as Not Applicable. Both parts can be handled using standard component storage practices.