Rotary Encoder Mechanical 16PPR 25BSP22-Q-1-16C

Part Overview

The 25BSP22-Q-1-16C is an active mechanical rotary encoder manufactured by Grayhill Inc. This component provides quadrature (incremental) output with 16 pulses per revolution and features a right-angle orientation with PCB through-hole mounting. The encoder is designed for applications requiring precise rotational position feedback with mechanical switching operation.

Alternative models may be required when application specifications demand different pulse-per-revolution resolution, different actuator configurations, or when inventory constraints necessitate component substitution while maintaining functional compatibility within the allowed parameter range.

Substiute Parts

25BSP22-Q-1-16C

Grayhill Inc.In Stock: 118725BSP22-Q-1-16C Datasheet

Current PartRFQ

25BP45-Q-2-08C

Grayhill Inc.In Stock: 87825BP45-Q-2-08C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 25BSP22-Q-1-16C is determined by the following critical parameters that must remain constant across alternative components:

Fixed Parameters (Non-Substitutable):

• Encoder Type: Mechanical
• Output Type: Quadrature (Incremental)
• Actuator Type: 1/4" Dia Flatted End
• Orientation: Right Angle
• Mounting Type: PCB, Through Hole
• Termination Style: PC Pin
• Rotational Life: 50K cycles minimum
• Series: 25

Variable Parameters (Allowable Variation):

• Pulses per Revolution: May vary based on application resolution requirements
• Manufacturer Part Number: Different model designations within the same series

The substitute part 25BP45-Q-2-08C shares all fixed parameters with the main part but differs in pulses per revolution (8 PPR versus 16 PPR). This substitution is valid only when the application can accommodate the lower resolution output.

Parameter Comparison

Engineering Selection Recommendations

Both the 25BSP22-Q-1-16C and 25BP45-Q-2-08C maintain active product status with identical compliance certifications. Selection between these components is determined by resolution requirements:

25BSP22-Q-1-16C Selection Criteria:

• Applications requiring 16 pulses per revolution resolution
• Systems where higher angular resolution is necessary for precise position feedback
• Designs where firmware or hardware is configured for 16 PPR quadrature decoding

25BP45-Q-2-08C Selection Criteria:

• Applications where 8 pulses per revolution resolution is sufficient
• Systems designed for lower resolution rotational feedback
• Designs where firmware or hardware is configured for 8 PPR quadrature decoding

Both components satisfy ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating. Mechanical rotational life is equivalent at 50K cycles minimum for both parts. PCB through-hole mounting and PC pin termination are identical, ensuring mechanical and electrical compatibility at the board interface level.

Frequently Asked Questions (FAQ)

Q: Can 25BP45-Q-2-08C be used as a direct replacement for 25BSP22-Q-1-16C?

A: Direct replacement is not possible without firmware or hardware modification. The 25BP45-Q-2-08C outputs 8 pulses per revolution while the 25BSP22-Q-1-16C outputs 16 pulses per revolution. Systems configured to decode 16 PPR will not function correctly with an 8 PPR encoder without reconfiguration of the signal processing logic.

Q: Are the physical mounting dimensions identical between these two encoders?

A: Both encoders share identical mounting specifications: PCB through-hole mounting type, right-angle orientation, and 1/4" diameter flatted-end actuator. Physical board-level installation is compatible.

Q: What is the difference in rotational life between these components?

A: Both components specify 50K cycles minimum rotational life. No difference exists in mechanical durability specifications.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the 25BSP22-Q-1-16C and 25BP45-Q-2-08C are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (unlimited). Compliance certifications are identical.

Q: What determines whether substitution is possible in my application?

A: Substitution is possible only if your application can operate with 8 pulses per revolution instead of 16 pulses per revolution. This requires that your signal processing firmware or hardware is capable of accepting the lower resolution output without loss of required functionality.

Q: Are there any electrical parameter differences between these encoders?

A: Both encoders are mechanical quadrature (incremental) output types with no specified supply voltage requirement. Electrical output characteristics are determined by the quadrature switching mechanism, which is identical in both components.