Grayhill 62D18-02-P Rotary Encoder Optical 20PPR Equivalent & Substitute Parts

Part Overview

The Grayhill 62D18-02-P is an optical rotary encoder with 20 pulses per revolution (PPR), delivering quadrature incremental output. This vertical-mount encoder features a 1/4" diameter flatted end actuator, integrated detent mechanism, and built-in switch functionality. The component operates at 5V supply voltage with PC pin termination for PCB through-hole mounting.

The 62D18-02-P maintains Active product status with 682 units in current inventory. Substitute parts become necessary when application requirements demand alternative resolution specifications, inventory constraints occur, or design modifications require different pulse-per-revolution ratings while maintaining core functional compatibility.

Substiute Parts

62D18-02-P

Grayhill Inc.In Stock: 77962D18-02-P Datasheet

Current PartRFQ

62N30-P

Grayhill Inc.In Stock: 82662N30-P Datasheet

SimilarRFQ

62S22-M5-P

Grayhill Inc.In Stock: 141762S22-M5-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 62D18-02-P are qualified based on strict parameter alignment across the following critical dimensions:

Mandatory Matching Parameters:

• Encoder Type: Optical
• Output Type: Quadrature (Incremental)
• Voltage - Supply: 5V
• Actuator Type: 1/4" Dia Flatted End
• Detent: Yes
• Built in Switch: Yes
• Mounting Type: PCB, Through Hole
• Orientation: Vertical
• Termination Style: PC Pin
• Rotational Life (Cycles Min): 1M

Variable Parameter (Resolution):

• Pulses per Revolution: Substitutes may differ from 20 PPR

The 62D18-02-P qualifies two substitute parts from the Grayhill optical encoder family. Both alternatives maintain identical mechanical, electrical, and operational characteristics while offering different resolution specifications. Substitution is valid when application firmware or system design accommodates alternative pulse-per-revolution values without requiring hardware modification.

Parameter Comparison

Engineering Selection Recommendations

62D18-02-P (Primary Selection)

The 62D18-02-P remains the primary component choice when 20 PPR resolution is specified in system design. Active product status ensures continued availability and supply chain stability. RoHS Compliant certification satisfies environmental regulatory requirements. MSL Level 1 classification permits unlimited shelf life without moisture control measures.

62S22-M5-P (Substitute - 16 PPR)

The 62S22-M5-P qualifies as a direct substitute when system design accommodates 16 PPR resolution. This alternative offers higher current inventory (1309 units) compared to the main part. ROHS3 Compliant status provides enhanced environmental compliance. Identical mechanical and electrical parameters ensure PCB-level compatibility without design modification.

62N30-P (Substitute - 12 PPR)

The 62N30-P functions as a substitute when application requirements permit 12 PPR resolution. This option provides the highest available inventory (755 units). ROHS3 Compliant certification meets current environmental standards. All mechanical mounting and electrical interface parameters match the primary part exactly.

Compliance Considerations

All three parts maintain Active product status, ensuring manufacturer support and continued production. REACH Unaffected status applies uniformly across the family. EAR99 export classification and 8543.70.4500 HTSUS code remain consistent, simplifying procurement and logistics documentation.

Frequently Asked Questions (FAQ)

Q: Can the 62S22-M5-P (16 PPR) directly replace the 62D18-02-P (20 PPR) without PCB modification?

A: Yes. Both parts share identical mechanical mounting specifications, electrical supply voltage, actuator geometry, and termination style. PCB-level compatibility is maintained. System firmware or software must accommodate the 16 PPR resolution change.

Q: What is the primary difference between the three substitute options?

A: Pulses per revolution (PPR) represents the only functional difference. The 62D18-02-P delivers 20 PPR, the 62S22-M5-P delivers 16 PPR, and the 62N30-P delivers 12 PPR. All other parameters—encoder type, output format, voltage, mechanical form factor, and lifecycle specifications—remain identical.

Q: Are there packaging differences between the main part and substitutes?

A: The 62D18-02-P ships in standard packaging. The 62S22-M5-P and 62N30-P ship in Bulk packaging. This distinction affects only procurement and logistics; component functionality and PCB integration remain unchanged.

Q: Do RoHS Compliant and ROHS3 Compliant certifications affect substitution compatibility?

A: No. Both certifications satisfy RoHS Directive requirements. ROHS3 Compliant represents a more recent certification standard. All three parts meet environmental compliance requirements for industrial and commercial applications.

Q: What is the rotational life specification, and does it apply equally to all three parts?

A: All three parts specify 1M (1 million) minimum rotational cycles. This lifecycle rating applies uniformly across the 62D18-02-P, 62S22-M5-P, and 62N30-P, ensuring equivalent mechanical durability and operational longevity.

Q: Can I use the 62N30-P (12 PPR) in an application originally designed for 20 PPR?

A: Direct substitution requires system design accommodation for 12 PPR resolution. Mechanical and electrical interfaces are fully compatible. Application firmware must process the lower resolution output without functional degradation.

Q: What does MSL Level 1 (Unlimited) mean for storage and handling?

A: MSL Level 1 classification indicates unlimited shelf life without moisture control requirements. All three parts carry this rating, permitting standard warehouse storage conditions without desiccant packaging or humidity monitoring.