Grayhill 25LR22-G Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The Grayhill 25LR22-G is a mechanical rotary encoder with 16 pulses per revolution (PPR) output in Gray Code (Absolute) format. This vertical-orientation encoder features a 1/4" diameter flatted end actuator, detent mechanism, and PC pin termination suitable for panel and PCB through-hole mounting applications. The product is Active status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when inventory constraints, lead time requirements, or procurement preferences necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

25LR22-G

Grayhill Inc.In Stock: 84825LR22-G Datasheet

Current PartRFQ

25LB22-G

Grayhill Inc.In Stock: 124125LB22-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 25LR22-G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 25LB22-G qualifies as a direct equivalent based on the following matching criteria:

Matching Parameters:

• Encoder Type: Mechanical
• Output Type: Gray Code (Absolute)
• Pulses per Revolution: 16 PPR
• Actuator Type: 1/4" Dia Flatted End
• Detent: Yes
• Built-in Switch: No
• Mounting Type: Panel, PCB Through Hole
• Orientation: Vertical
• Termination Style: PC Pin
• Rotational Life: 100K cycles minimum
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Both parts belong to the Grayhill 25L series and share identical functional specifications, making them interchangeable in applications requiring 16 PPR Gray Code absolute position encoding with mechanical detent operation.

Parameter Comparison

Engineering Selection Recommendations

Both the 25LR22-G and 25LB22-G are Active products with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications. Selection between these parts should be based on availability and procurement lead times, as they are functionally and mechanically equivalent. The 25LB22-G currently maintains higher inventory levels (1149 pcs vs. 827 pcs), which may provide supply chain advantages for high-volume production requirements. Both parts satisfy the same mechanical interface requirements, electrical output specifications, and environmental compliance standards.

Frequently Asked Questions (FAQ)

Q: Can the 25LB22-G directly replace the 25LR22-G in existing designs?

A: Yes. The 25LB22-G is a direct equivalent with identical electrical output (16 PPR Gray Code Absolute), mechanical actuator specifications (1/4" flatted end), mounting configuration (panel and PCB through-hole), termination style (PC pin), and detent operation. No design modifications are required.

Q: Are there differences in rotational life or durability between these parts?

A: No. Both parts specify 100K cycles minimum rotational life and are manufactured by Grayhill Inc. within the same 25L series.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 25LR22-G and 25LB22-G are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

Q: What is the difference between the part numbers 25LR22-G and 25LB22-G?

A: The part numbers differ in the second and third characters (LR vs. LB), but both parts share identical specifications for encoder type, output format, PPR rating, actuator geometry, mounting type, and orientation. The designation difference does not reflect functional or electrical variation.

Q: Can these encoders be used interchangeably in panel-mounted and PCB through-hole applications?

A: Yes. Both parts support dual mounting configurations: panel mounting and PCB through-hole mounting with PC pin termination.

Q: Is there a supply advantage to selecting one part over the other?

A: The 25LB22-G currently has higher inventory availability (1149 pcs) compared to the 25LR22-G (827 pcs), which may reduce lead times for procurement.