Grayhill 62C1818-02-P Rotary Encoder Optical 20PPR - Equivalent & Substitute Parts

Part Overview

The Grayhill 62C1818-02-P is an optical rotary encoder with 20 pulses per revolution (PPR), providing quadrature incremental output. This component is designed for panel and PCB through-hole mounting in vertical orientation with integrated detent and built-in switch functionality. The part is currently in active production status with 649 units available in new original inventory. Substitute parts may be required due to inventory constraints, application-specific resolution requirements, or supply chain considerations.

Substiute Parts

62C1818-02-P

Grayhill Inc.In Stock: 73162C1818-02-P Datasheet

Current PartRFQ

62C2222-02-P

Grayhill Inc.In Stock: 96762C2222-02-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 62C1818-02-P is determined by strict adherence to the following core parameters:

Fixed Parameters (Must Match Exactly):

• Manufacturer: Grayhill Inc.
• Series: 62C
• Encoder Type: Optical
• Output Type: Quadrature (Incremental)
• Supply Voltage: 5V
• Actuator Type: Concentric
• Detent: Yes
• Built-in Switch: Yes
• Mounting Type: Panel, PCB Through Hole
• Orientation: Vertical
• Termination Style: PC Pin
• Rotational Life: 1M cycles minimum
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Variable Parameter (Allows Substitution):

• Pulses per Revolution: 20 PPR (primary specification; substitutes may differ)

The 62C2222-02-P qualifies as a substitute based on matching all fixed parameters while providing an alternative resolution specification of 16 PPR instead of 20 PPR.

Parameter Comparison

Engineering Selection Recommendations

Both the 62C1818-02-P and 62C2222-02-P are active production components manufactured by Grayhill Inc. within the 62C series. Both parts maintain full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

The primary distinction between these parts is the pulses per revolution specification: 20 PPR for the 62C1818-02-P and 16 PPR for the 62C2222-02-P. All other electrical, mechanical, and environmental parameters are identical. Selection between these parts depends solely on the resolution requirement of the target application.

Both parts share identical mounting characteristics (panel and PCB through-hole), orientation (vertical), termination style (PC pin), and operational specifications (5V supply, 1M cycle rotational life, integrated detent and switch). The 62C2222-02-P currently maintains higher inventory availability at 914 units compared to 649 units for the 62C1818-02-P.

Frequently Asked Questions (FAQ)

Q: Can the 62C2222-02-P directly replace the 62C1818-02-P in all applications?

A: Direct replacement is possible only if the application can function with 16 PPR resolution instead of 20 PPR. All other mechanical, electrical, and environmental specifications are identical. Applications requiring exactly 20 PPR resolution cannot use the 62C2222-02-P as a substitute.

Q: What is the difference in resolution between these two encoders?

A: The 62C1818-02-P provides 20 pulses per revolution, while the 62C2222-02-P provides 16 pulses per revolution. This represents a 20% reduction in resolution. The impact on application performance depends on the specific control or measurement requirements of the system.

Q: Are the mounting footprints identical between these parts?

A: Yes. Both parts feature identical mounting specifications: panel and PCB through-hole mounting, vertical orientation, and PC pin termination style. Physical installation procedures are identical.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the 62C1818-02-P and 62C2222-02-P are ROHS3 compliant and REACH unaffected. Both parts meet current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the supply voltage requirement for both encoders?

A: Both parts operate at 5V supply voltage. No voltage adjustment or additional power conditioning is required when substituting between these parts.

Q: Are the electrical output characteristics identical?

A: Yes. Both parts provide quadrature incremental output with identical signal characteristics. The difference is only in the number of pulses generated per complete revolution.

Q: What is the rotational life specification for both parts?

A: Both parts are rated for a minimum of 1 million (1M) rotational cycles, providing identical mechanical durability specifications.

Q: Do both encoders include the same built-in features?

A: Yes. Both parts include detent functionality and a built-in switch. These features are identical in both the 62C1818-02-P and 62C2222-02-P.