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Grayhill 25LB22-G-Z Rotary Encoder Mechanical 16PPR Equivalent & Substitute Parts
Part Overview
The Grayhill 25LB22-G-Z is an active 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 and is designed for panel and PCB through-hole mounting applications. The component delivers 100,000 minimum rotational life cycles and includes detent functionality. Finding equivalent or substitute parts becomes necessary when managing inventory optimization, addressing supply chain constraints, or standardizing component selections across production batches while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | 25LB22-G-Z |
| Manufacturer | Grayhill Inc. |
| Series | 25L |
| Encoder Type | Mechanical |
| Output Type | Gray Code (Absolute) |
| Pulses per Revolution | 16 |
| 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 (Cycles Min) | 100K |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS Code | 8543.70.4500 |
Substitute Part Grouping Explanation
Substitution eligibility for the 25LB22-G-Z is determined by strict equivalence across the following critical parameters:
Electrical Specifications: Output type (Gray Code Absolute), pulses per revolution (16 PPR), and encoder type (Mechanical) must be identical.
Mechanical Specifications: Actuator type (1/4" Dia Flatted End), detent presence (Yes), mounting type (Panel, PCB Through Hole), and orientation (Vertical) must match exactly.
Termination & Interface: Termination style (PC Pin) and built-in switch status (No) must be identical.
Reliability & Compliance: Rotational life minimum (100K cycles), RoHS3 compliance, MSL rating (1), and REACH status must be maintained.
The substitute part 25LB22-G meets all these criteria and is therefore a direct equivalent for the 25LB22-G-Z.
Parameter Comparison
| Parameter | 25LB22-G-Z (Main Part) | 25LB22-G (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Grayhill Inc. | Grayhill Inc. | Identical |
| Series | 25L | 25L | Identical |
| Encoder Type | Mechanical | Mechanical | Identical |
| Output Type | Gray Code (Absolute) | Gray Code (Absolute) | Identical |
| Pulses per Revolution | 16 | 16 | Identical |
| Actuator Type | 1/4" Dia Flatted End | 1/4" Dia Flatted End | Identical |
| Detent | Yes | Yes | Identical |
| Built-in Switch | No | No | Identical |
| Mounting Type | Panel, PCB Through Hole | Panel, PCB Through Hole | Identical |
| Orientation | Vertical | Vertical | Identical |
| Termination Style | PC Pin | PC Pin | Identical |
| Rotational Life (Cycles Min) | 100K | 100K | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| ECCN | EAR99 | EAR99 | Identical |
| HTSUS Code | 8543.70.4500 | 8543.70.4500 | Identical |
Engineering Selection Recommendations
The 25LB22-G serves as a direct equivalent substitute for the 25LB22-G-Z. Both components are manufactured by Grayhill Inc., maintain active product status, and carry identical electrical, mechanical, and compliance certifications. Selection between these parts may be based on inventory availability and packaging considerations. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99, ensuring regulatory consistency in applications requiring environmental and export compliance. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions for either component during storage or handling.
Frequently Asked Questions (FAQ)
Q: Can the 25LB22-G directly replace the 25LB22-G-Z in existing designs?
A: Yes. The 25LB22-G is a direct equivalent. All electrical specifications (16 PPR Gray Code Absolute output), mechanical characteristics (1/4" flatted end actuator, vertical orientation, detent function), mounting configuration (Panel, PCB Through Hole), and termination style (PC Pin) are identical. No circuit or mechanical redesign is required.
Q: What is the difference between the 25LB22-G-Z and 25LB22-G part numbers?
A: The provided data indicates both parts share identical specifications across all electrical, mechanical, and compliance parameters. The suffix variation (-Z versus no suffix) does not reflect differences in the core functional or physical characteristics documented in this reference.
Q: Are there any packaging differences between these substitute parts?
A: Both parts are supplied in Bulk packaging. Inventory levels differ (684 Pcs for 25LB22-G-Z versus 1149 Pcs for 25LB22-G), but packaging format remains consistent.
Q: Do these encoders require external power supply?
A: The Voltage - Supply parameter is not specified in the provided data. Consult the manufacturer's detailed datasheet for power supply requirements and electrical interface specifications.
Q: Are these mechanical encoders suitable for high-cycle applications?
A: Both parts are rated for a minimum of 100,000 rotational life cycles, supporting applications requiring extended operational durability within this cycle range.
Q: Do these parts meet environmental compliance standards?
A: Yes. Both the 25LB22-G-Z and 25LB22-G are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited moisture sensitivity), indicating no moisture-related handling restrictions.
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