Grayhill 62S18-H9-P Rotary Encoder Optical 20PPR Equivalent & Substitute Parts

Part Overview

The Grayhill 62S18-H9-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 part is Active status and ROHS3 compliant, suitable for PCB through-hole mounting applications requiring precise rotational feedback at 5V supply voltage.

Substitute parts become necessary when specific PPR requirements differ from the 20PPR specification, when inventory constraints occur, or when alternative resolution levels are required for system integration while maintaining mechanical and electrical compatibility.

Substiute Parts

62S18-H9-P

Grayhill Inc.In Stock: 109162S18-H9-P Datasheet

Current PartRFQ

62N30-P

Grayhill Inc.In Stock: 82662N30-P Datasheet

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62S22-M5-P

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

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 62S18-H9-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
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Variable Parameter (Substitution Basis):

• Pulses per Revolution (PPR): 12, 16, or 20

The substitute parts 62S22-M5-P (16PPR) and 62N30-P (12PPR) maintain identical mechanical, electrical, and compliance specifications while offering alternative resolution options. All three parts are manufactured by Grayhill Inc. and share the same series-level design architecture.

Parameter Comparison

Engineering Selection Recommendations

All three parts—62S18-H9-P, 62S22-M5-P, and 62N30-P—maintain Active product status and full ROHS3 compliance with REACH unaffected designation. Selection between these encoders is determined by application-specific PPR requirements:

62S18-H9-P (20PPR): Primary selection for applications requiring 20 pulses per revolution resolution.

62S22-M5-P (16PPR): Substitute selection for applications tolerating 16 pulses per revolution resolution. Identical mechanical and electrical interface.

62N30-P (12PPR): Substitute selection for applications tolerating 12 pulses per revolution resolution. Identical mechanical and electrical interface.

All parts share identical supply voltage (5V), actuator geometry (1/4" flatted end), mounting configuration (PCB through-hole vertical), and operational life rating (1M cycles minimum). Substitution is mechanically and electrically transparent provided the application firmware or signal processing accommodates the alternative PPR value.

Frequently Asked Questions (FAQ)

Q: Can 62S22-M5-P (16PPR) directly replace 62S18-H9-P (20PPR) in an existing design?

A: Direct mechanical and electrical replacement is possible. The 1/4" flatted end actuator, 5V supply, PC pin termination, and PCB through-hole mounting are identical. Application firmware or signal processing must accommodate the 16PPR output instead of 20PPR.

Q: What is the primary difference between these three substitute parts?

A: The sole difference is pulses per revolution: 62S18-H9-P provides 20PPR, 62S22-M5-P provides 16PPR, and 62N30-P provides 12PPR. All other mechanical, electrical, and compliance parameters are identical.

Q: Are these parts interchangeable from a compliance perspective?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. No compliance barriers exist to substitution.

Q: Does the built-in switch function differ between these encoders?

A: No. All three parts include an integrated switch with identical functionality and mounting configuration.

Q: What inventory status applies to these substitute parts?

A: 62S18-H9-P: 1074 Pcs in stock; 62S22-M5-P: 1309 Pcs in stock; 62N30-P: 755 Pcs in stock. All are new original parts.

Q: Can these parts be used interchangeably in rotational life applications?

A: Yes. All three parts specify 1M cycles minimum rotational life, ensuring equivalent operational durability.