Grayhill 63RS32 Rotary Encoder Optical 32PPR - Equivalent & Substitute Parts

Part Overview

The Grayhill 63RS32 is an optical rotary encoder with 32 pulses per revolution (PPR), providing quadrature (incremental) output. This component is designed for vertical PCB mounting applications requiring precise rotational position feedback. The encoder features a 1/4" diameter flatted end actuator and operates at 5V supply voltage.

The 63RS32 is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). With 740 units in current inventory, this part remains readily available. Substitute parts are identified based on identical electrical specifications, mechanical compatibility, and functional equivalence to ensure direct replacement capability without circuit redesign.

Substiute Parts

63RS32

Grayhill Inc.In Stock: 79163RS32 Datasheet

Current PartRFQ

63R32

Grayhill Inc.In Stock: 105863R32 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Grayhill 63RS32 are identified through strict parameter matching across the following critical criteria:

Electrical Compatibility:

• Encoder type: Optical
• Output configuration: Quadrature (Incremental)
• Resolution: 32 PPR
• Supply voltage: 5V

Mechanical Compatibility:

• Actuator geometry: 1/4" diameter flatted end
• Mounting interface: PCB through-hole
• Orientation: Vertical
• Termination: PC pin

Functional Requirements:

• Detent function: None required
• Integrated switch: None required
• Rotational life minimum: 300M cycles

Regulatory & Environmental:

• RoHS compliance status
• MSL rating: 1 (Unlimited)
• REACH compliance status

Parts meeting all parameters in these categories are classified as direct substitutes. No parameter deviation is permitted for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - Grayhill 63RS32: The 63RS32 is the specified part number with active product status and confirmed RoHS compliance. Current inventory of 740 units supports immediate procurement. This part is suitable for applications requiring standard packaging with through-hole PCB termination.

Substitute Selection - Grayhill 63R32: The 63R32 provides complete functional and electrical equivalence to the 63RS32. All critical parameters—encoder type, resolution, supply voltage, mechanical interface, and regulatory compliance—are identical. The 63R32 carries ROHS3 compliance, which exceeds the RoHS requirement of the main part. The primary distinction is packaging format (bulk) and higher current inventory (1006 units).

Selection Criteria:

• Choose 63RS32 when standard packaging is specified or preferred
• Choose 63R32 when bulk packaging is acceptable and higher inventory availability is advantageous
• Both parts are interchangeable at the functional and electrical level
• No circuit modifications are required when substituting between these part numbers

Frequently Asked Questions (FAQ)

Q: Can the 63R32 directly replace the 63RS32 in existing designs?

A: Yes. The 63R32 is a direct functional substitute. All electrical specifications (5V supply, 32 PPR quadrature output), mechanical interfaces (1/4" flatted end actuator, vertical PCB through-hole mounting), and regulatory certifications (RoHS, REACH, MSL 1) are identical. No circuit redesign or board layout modification is required.

Q: What is the difference between the 63RS32 and 63R32?

A: The primary difference is packaging. The 63RS32 is supplied in standard packaging, while the 63R32 is supplied in bulk packaging. All functional, electrical, and mechanical specifications are identical. The 63R32 also carries ROHS3 compliance, which is a higher standard than the RoHS compliance of the 63RS32.

Q: Are there any compatibility concerns when switching between these part numbers?

A: No compatibility concerns exist. Both parts share identical encoder type (optical), output type (quadrature incremental), resolution (32 PPR), supply voltage (5V), actuator type (1/4" flatted end), mounting type (PCB through-hole), orientation (vertical), and termination style (PC pin). Rotational life specifications (300M cycles minimum) are also identical.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection depends on packaging requirements and inventory availability. The 63R32 offers higher current inventory (1006 units versus 740 units) and bulk packaging, which may be advantageous for high-volume production. The 63RS32 is appropriate when standard packaging is specified.

Q: Are both parts RoHS compliant?

A: Yes. The 63RS32 is RoHS compliant, and the 63R32 is ROHS3 compliant. ROHS3 represents a higher compliance standard and is fully compatible with RoHS requirements. Both parts meet regulatory requirements for lead-free manufacturing and restricted substance limitations.

Q: What is the moisture sensitivity level for these encoders?

A: Both the 63RS32 and 63R32 carry MSL 1 (Unlimited) rating. This indicates unlimited shelf life under normal storage conditions with no moisture sensitivity constraints. No special desiccant packaging or storage environment controls are required.

Q: Can these encoders be used interchangeably in applications requiring 32 PPR quadrature output?

A: Yes. Both encoders provide identical 32 PPR quadrature (incremental) output. Applications requiring this specific resolution and output format can use either part number without functional degradation or performance variation.