Grayhill 63RS100 Rotary Encoder Optical 100PPR: Equivalent & Substitute Parts

Part Overview

The Grayhill 63RS100 is an optical rotary encoder with 100 pulses per revolution (PPR), delivering quadrature incremental output. This encoder features a 1/4" diameter flatted end actuator, PCB through-hole mounting in vertical orientation, and operates at 5V supply voltage. The 63RS100 maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The encoder delivers 300 million cycles minimum rotational life, making it suitable for precision motion control and position feedback applications requiring moderate resolution.

Substitute encoders from the Grayhill 63R series become necessary when application requirements differ in resolution (pulses per revolution), inventory availability, or when design modifications require alternative PPR specifications while maintaining mechanical and electrical compatibility.

Substiute Parts

63RS100

Grayhill Inc.In Stock: 93063RS100 Datasheet

Current PartRFQ

63R32

Grayhill Inc.In Stock: 105863R32 Datasheet

SimilarRFQ

63R64

Grayhill Inc.In Stock: 138963R64 Datasheet

SimilarRFQ

63RS64

Grayhill Inc.In Stock: 95263RS64 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the Grayhill 63R series maintain identical electrical and mechanical specifications with the exception of pulses per revolution (PPR). The substitution logic is based on the following invariant parameters:

Invariant Parameters (Must Match for Substitution):

• Encoder Type: Optical
• Output Type: Quadrature (Incremental)
• Voltage - Supply: 5V
• Actuator Type: 1/4" Dia Flatted End
• Mounting Type: PCB, Through Hole
• Orientation: Vertical
• Termination Style: PC Pin
• Rotational Life: 300M cycles minimum
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Series: 63R

Variable Parameter (Differentiates Substitutes):

• Pulses per Revolution: 32, 64, or 100

The 63RS100 encoder is substitutable with 63R32, 63R64, and 63RS64 when application requirements permit resolution changes. All substitute parts share identical mechanical form factors, electrical interfaces, and reliability specifications. Selection among these alternatives depends solely on the required resolution for position feedback in the target application.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts (63R32, 63R64, 63RS64) maintain Active product status and full ROHS3 compliance, ensuring regulatory and supply chain continuity. The 63RS100 and its substitutes are manufactured by Grayhill Inc. within the same 63R series, guaranteeing mechanical interchangeability and identical electrical interface characteristics.

Selection between the 63RS100 (100 PPR), 63RS64 or 63R64 (64 PPR), and 63R32 (32 PPR) is determined by the application's resolution requirements for rotational position feedback. Higher PPR values deliver finer angular resolution; lower PPR values reduce signal processing complexity. All variants support identical supply voltage (5V), mounting configuration (PCB through-hole vertical), and actuator geometry (1/4" flatted end).

Inventory availability across all four part numbers is confirmed: 63RS100 (894 units), 63R32 (1006 units), 63R64 (1336 units), and 63RS64 (928 units). Component selection may be influenced by stock levels and lead time requirements without compromising mechanical or electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the 63RS100 be directly replaced with the 63R32 or 63R64?

A: Direct mechanical and electrical replacement is possible. The 63R32, 63R64, and 63RS64 share identical mounting footprints, supply voltage requirements, actuator dimensions, and termination styles. The primary difference is pulses per revolution (PPR). Substitution requires verification that the application's firmware or signal processing logic can accommodate the alternative resolution. No hardware modifications are necessary.

Q: What is the difference between 63R64 and 63RS64?

A: Both 63R64 and 63RS64 deliver 64 pulses per revolution with identical electrical and mechanical specifications. The designation difference reflects Grayhill's internal product coding; both are functionally equivalent for substitution purposes. Selection between them may be based on inventory availability or supplier preference.

Q: How does pulses per revolution affect application performance?

A: Pulses per revolution determines angular resolution. The 63RS100 (100 PPR) provides 3.6 degrees per pulse; 63R64 (64 PPR) provides 5.625 degrees per pulse; 63R32 (32 PPR) provides 11.25 degrees per pulse. Applications requiring fine position feedback should use higher PPR values. Applications with lower resolution requirements can use lower PPR encoders, reducing signal processing overhead.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 63RS100, 63R32, 63R64, and 63RS64 are all ROHS3 compliant with MSL 1 (unlimited moisture sensitivity). All parts meet identical environmental and regulatory standards.

Q: What is the rotational life specification for these encoders?

A: All encoders in this substitution group (63RS100, 63R32, 63R64, 63RS64) specify a minimum rotational life of 300 million cycles, ensuring equivalent reliability and service life across all alternatives.

Q: Can these encoders be used in applications requiring different supply voltages?

A: No. All substitute parts operate exclusively at 5V supply voltage. Applications requiring alternative supply voltages require evaluation of different encoder series outside the 63R family.