AMT303-V Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The AMT303-V is an incremental rotary encoder manufactured by CUI Devices, featuring 1024 pulses per revolution with commutation output in a right-angle chassis mount configuration. This encoder is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

The AMT303-V operates at 5V supply voltage with an open center actuator design (2mm to 8mm range) and terminal pin termination. Its obsolete status necessitates evaluation of active substitute models that maintain electrical and mechanical compatibility with existing applications.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 761AMT303-V Datasheet

Current PartRFQ

AMT313Q-V

CUI DevicesIn Stock: 1390AMT313Q-V Datasheet

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AMT313S-V

CUI DevicesIn Stock: 1125AMT313S-V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AMT303-V is determined by the following critical parameters:

• Encoder Type: Must be Incremental
• Voltage Supply: Must be 5V
• Actuator Type: Must be 2mm ~ 8mm Open Center
• Mounting Type: Must be Chassis Mount, Motors
• Orientation: Must be Right Angle
• Output Type: Must support Commutation output
• Termination Style: Terminal Pins or Connector acceptable with mechanical compatibility verification

The substitute parts AMT313Q-V and AMT313S-V meet these core electrical and mechanical requirements. Both are active products from CUI Devices in the AMT31 series, eliminating obsolescence concerns. The primary distinction between substitutes is termination style: AMT313Q-V uses terminal pins (matching the original), while AMT313S-V uses connector termination.

The AMT303-V specifies fixed 1024 PPR, while both substitutes feature programmable PPR capability. This represents a functional enhancement rather than a limitation, as programmable encoders can be configured to match the original 1024 PPR specification.

Parameter Comparison

Engineering Selection Recommendations

AMT313Q-V is the primary substitute for direct replacement applications. It maintains terminal pin termination identical to the AMT303-V, ensuring compatibility with existing wiring harnesses and PCB layouts. The part is active in production with ROHS3 compliance, providing long-term supply assurance. Programmable PPR functionality allows configuration to the original 1024 PPR specification.

AMT313S-V is suitable for applications where connector termination is acceptable or preferred. This variant offers the same electrical performance and programmable PPR capability as the AMT313Q-V but requires mechanical interface adaptation due to connector termination. ROHS3 compliance and active production status apply equally.

Both substitutes eliminate obsolescence risk associated with the AMT303-V while maintaining electrical compatibility across 5V supply, commutation output, right-angle orientation, and chassis mount configuration.

Frequently Asked Questions (FAQ)

Q: Can AMT313Q-V and AMT313S-V be used interchangeably with AMT303-V?

A: Both parts meet the core electrical and mechanical requirements for substitution. AMT313Q-V is the direct replacement due to matching terminal pin termination. AMT313S-V requires connector interface adaptation but is electrically equivalent.

Q: What is the impact of programmable PPR on substitution?

A: The AMT303-V operates at fixed 1024 PPR. Both substitutes feature programmable PPR, which must be configured to 1024 PPR during system setup to match the original specification. This represents a functional enhancement, not a limitation.

Q: Are there termination compatibility concerns?

A: AMT313Q-V uses terminal pins, matching the AMT303-V directly. AMT313S-V uses connector termination, requiring mechanical interface verification before implementation. Electrical performance is identical between both substitutes.

Q: What is the compliance status difference between RoHS and ROHS3?

A: The AMT303-V carries RoHS Compliant status. Both substitutes carry ROHS3 Compliant status, representing updated compliance certification. ROHS3 is a more recent standard iteration and does not prevent substitution.

Q: How does product status affect substitution decisions?

A: The AMT303-V is obsolete, creating supply and long-term support risk. Both AMT313Q-V and AMT313S-V are active products, ensuring ongoing availability and manufacturer support for the foreseeable future.