Grayhill 61S100-2 Rotary Encoder Optical 100PPR Equivalent & Substitute Parts

Part Overview

The Grayhill 61S100-2 is an optical rotary encoder with 100 pulses per revolution (PPR) in quadrature (incremental) output configuration. This vertical-mount encoder is designed for PCB through-hole applications with a 1/4" diameter flatted end actuator and detent mechanism. The part is currently in active production status with 893 units in stock.

Substitute parts become necessary when the primary part number is unavailable, when alternative PPR resolutions better match application requirements, or when cross-manufacturer compatibility is required for supply chain flexibility.

Substiute Parts

61S100-2

Grayhill Inc.In Stock: 95861S100-2 Datasheet

Current PartRFQ

62F22-01-P-L

Grayhill Inc.In Stock: 121062F22-01-P-L Datasheet

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62S11-M0-P

Grayhill Inc.In Stock: 87162S11-M0-P Datasheet

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62S22-M0-P

Grayhill Inc.In Stock: 72162S22-M0-P Datasheet

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HRPG-AD32#13R

Broadcom LimitedIn Stock: 788HRPG-AD32#13R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the 61S100-2 is based on strict parameter matching across the following critical dimensions:

Mandatory Matching Parameters:

• Encoder Type: Optical (all substitutes must be optical)
• Output Type: Quadrature (Incremental) (all substitutes must be quadrature)
• Voltage - Supply: 5V (all substitutes must operate at 5V)
• Actuator Type: 1/4" Dia Flatted End (all substitutes must have identical mechanical interface)
• Mounting Type: PCB, Through Hole (all substitutes must support PCB mounting)
• Orientation: Vertical (all substitutes must be vertically oriented)
• Termination Style: PC Pin (all substitutes must use PC pin termination)
• Detent: Yes (all substitutes must include detent mechanism)
• Built-in Switch: No (all substitutes must not include built-in switch)

Variable Parameters (Allowed to Differ):

• Pulses per Revolution (PPR): 16, 32, or 100 PPR are available
• Manufacturer: Grayhill Inc. or Broadcom Limited
• Series designation
• Rotational Life specification
• RoHS compliance level (RoHS3 or RoHS Compliant)

The substitute parts listed below maintain all mandatory parameters while offering alternative PPR resolutions and cross-manufacturer options.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (100 PPR Resolution): The 61S100-2 remains the primary choice when 100 pulses per revolution resolution is required. This part offers the highest rotational life specification (10M cycles) among available options and maintains active production status.

Alternative Selection (32 PPR Resolution): The 62S11-M0-P (Grayhill) and HRPG-AD32#13R (Broadcom) both provide 32 PPR resolution. These parts are suitable for applications where lower resolution is acceptable. The 62S11-M0-P maintains single-manufacturer sourcing within the Grayhill product line. The HRPG-AD32#13R provides cross-manufacturer flexibility through Broadcom supply. Both parts carry ROHS3 compliance certification.

Alternative Selection (16 PPR Resolution): The 62F22-01-P-L and 62S22-M0-P both provide 16 PPR resolution. These parts are suitable for applications requiring the lowest resolution among available options. Both are Grayhill products with ROHS3 compliance and equivalent inventory availability.

Compliance Considerations: All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification identical to the main part. All substitute parts carry Moisture Sensitivity Level 1 (Unlimited) rating. The primary difference in compliance is RoHS status: the 61S100-2 carries RoHS Compliant designation, while all substitutes carry ROHS3 Compliant designation. Both designations satisfy RoHS requirements.

Rotational Life Trade-off: The 61S100-2 specifies 10M cycle minimum rotational life, while all substitute parts specify 1M cycle minimum. Applications requiring extended operational life should prioritize the 61S100-2 when available.

Frequently Asked Questions (FAQ)

Q: Can the 62S11-M0-P (32 PPR) be used as a direct replacement for the 61S100-2 (100 PPR)?

A: The 62S11-M0-P is mechanically and electrically compatible with the 61S100-2 in terms of mounting, power supply, and signal format. However, the PPR resolution differs significantly. The 62S11-M0-P provides 32 pulses per revolution versus 100 pulses per revolution on the 61S100-2. This affects position resolution and encoder accuracy. Use the 62S11-M0-P only if your application can function with lower resolution output.

Q: What is the difference between the Grayhill 62S22-M0-P and 62F22-01-P-L?

A: Both parts provide 16 PPR resolution and are fully compatible in all mechanical and electrical parameters. The primary difference is series designation (62S versus 62F) and packaging specification (Bulk for both). Both parts are Grayhill products with identical performance characteristics for 16 PPR applications.

Q: Can I use the Broadcom HRPG-AD32#13R instead of a Grayhill encoder?

A: Yes. The HRPG-AD32#13R maintains all mandatory mechanical and electrical parameters: 5V supply, 1/4" flatted end actuator, PCB through-hole mounting, vertical orientation, PC pin termination, detent mechanism, and quadrature output. The HRPG-AD32#13R provides 32 PPR resolution. Cross-manufacturer substitution is valid when PPR resolution requirements align.

Q: Why does the 61S100-2 specify 10M rotational life while substitutes specify 1M?

A: The 61S100-2 is rated for 10 million cycle minimum rotational life, while the 62-series and HRPG-series parts are rated for 1 million cycle minimum. This specification difference reflects different design or testing standards between product lines. For applications requiring extended operational life beyond 1M cycles, the 61S100-2 is the appropriate selection.

Q: Are all these parts RoHS compliant?

A: Yes. The 61S100-2 carries RoHS Compliant designation. All substitute parts carry ROHS3 Compliant designation. Both compliance levels satisfy RoHS requirements. All parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: What PPR options are available as substitutes?

A: Three PPR resolutions are available: 16 PPR (62F22-01-P-L, 62S22-M0-P), 32 PPR (62S11-M0-P, HRPG-AD32#13R), and 100 PPR (61S100-2 primary part). Selection depends on application resolution requirements.

Q: Can I interchange parts within the same PPR resolution?

A: Yes, within the same PPR resolution. For 16 PPR applications, the 62F22-01-P-L and 62S22-M0-P are interchangeable. For 32 PPR applications, the 62S11-M0-P and HRPG-AD32#13R are interchangeable. All mechanical, electrical, and functional parameters match within each PPR group.