Grayhill 63R50 Rotary Encoder Optical 50PPR - Equivalent & Substitute Parts

Part Overview

The Grayhill 63R50 is an optical rotary encoder with 50 pulses per revolution (PPR), providing quadrature (incremental) output. This vertical-mount encoder is designed for PCB through-hole applications requiring precise rotational position feedback. The part is currently in active production status with 844 units in stock. Alternative models within the 63R series are available to accommodate different resolution requirements while maintaining compatibility with the same mechanical and electrical interface specifications.

Substiute Parts

63R50

Grayhill Inc.In Stock: 87863R50 Datasheet

Current PartRFQ

63R32

Grayhill Inc.In Stock: 105863R32 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the Grayhill 63R series are qualified based on the following criteria:

Mechanical Compatibility:

• Identical actuator type (1/4" Dia Flatted End)
• Same mounting configuration (PCB, Through Hole)
• Matching orientation (Vertical)
• Identical termination style (PC Pin)

Electrical Compatibility:

• Same supply voltage (5V)
• Identical output type (Quadrature/Incremental)
• Same encoder technology (Optical)

Reliability & Compliance:

• Minimum rotational life of 300M cycles
• ROHS3 compliance
• MSL rating of 1 (Unlimited)
• REACH Unaffected status

Variable Parameter:

• Pulses per Revolution (PPR) may differ based on application resolution requirements

The 63R32 substitute part maintains all mechanical, electrical, and compliance specifications while offering a different PPR rating (32 instead of 50).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (63R50): The 63R50 is the specified component for applications requiring 50 pulses per revolution resolution. This part is in active production with adequate inventory (844 units) and carries full ROHS3 and REACH compliance certifications suitable for regulated industries.

Substitute Selection (63R32): The 63R32 provides an alternative when lower resolution (32 PPR) is acceptable for the application. This substitute maintains identical mechanical mounting, electrical interface, and compliance certifications. The 63R32 has higher inventory availability (1006 units), which may be advantageous for supply chain considerations. Selection between 63R50 and 63R32 depends solely on the rotational resolution requirement of the end application.

Compliance & Reliability: Both parts meet ROHS3 compliance and carry unlimited moisture sensitivity rating (MSL 1), indicating suitability for standard industrial environments without special handling. Both parts specify 300M minimum rotational life cycles, meeting durability requirements for continuous-duty applications.

Frequently Asked Questions (FAQ)

Q: Can the 63R32 be used as a direct replacement for the 63R50?

A: The 63R32 is mechanically and electrically compatible with the 63R50 in terms of mounting, voltage, and interface. However, the 63R32 provides 32 pulses per revolution instead of 50. Substitution is valid only if the application can function with the lower resolution output.

Q: What is the primary difference between these two encoders?

A: The only difference between the 63R50 and 63R32 is the pulses per revolution (PPR) specification. All other parameters—mechanical mounting, electrical supply, output type, compliance ratings, and reliability specifications—are identical.

Q: Are both parts currently available?

A: Yes. The 63R50 has 844 units in stock, and the 63R32 has 1006 units in stock. Both are active production parts from Grayhill Inc.

Q: Do these encoders require special handling or storage?

A: Both encoders carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard industrial storage and handling practices apply.

Q: What mounting configuration do these encoders use?

A: Both the 63R50 and 63R32 use PCB through-hole mounting with vertical orientation and PC pin termination. The actuator is a 1/4" diameter flatted end shaft.

Q: Are these parts compliant with environmental regulations?

A: Yes. Both the 63R50 and 63R32 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What supply voltage do these encoders require?

A: Both encoders operate on a 5V supply voltage. No voltage conversion or special power conditioning is required.