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 alternative models that maintain electrical and mechanical compatibility with existing applications.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 1033AMT303-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 strict alignment across the following critical parameters:

Mandatory Compatibility Parameters:

• Encoder Type: Incremental
• Voltage Supply: 5V
• Actuator Type: 2mm ~ 8mm Open Center
• Mounting Type: Chassis Mount, Motors
• Orientation: Right Angle
• Detent: No
• Built-in Switch: No
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Output Configuration: The AMT303-V specifies commutation output with 1024 PPR. Substitute parts must support commutation output type. The AMT313Q-V and AMT313S-V both feature programmable PPR capability, allowing configuration to match the 1024 PPR requirement of the original specification.

Termination Consideration: The AMT303-V uses terminal pin termination. The AMT313Q-V maintains terminal pin termination (direct match). The AMT313S-V uses connector termination, requiring interface adaptation in applications designed for terminal pin connections.

Parameter Comparison

Engineering Selection Recommendations

AMT313Q-V (Primary Substitute): The AMT313Q-V is the preferred substitute for the obsolete AMT303-V. Both parts maintain identical electrical specifications (5V supply, commutation output, incremental encoder type) and mechanical compatibility (right-angle orientation, chassis mount, open center actuator). The AMT313Q-V features programmable PPR configuration, enabling direct substitution at 1024 PPR. Termination style remains terminal pins, eliminating interface redesign requirements. The AMT313Q-V holds active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment.

AMT313S-V (Secondary Substitute with Interface Consideration): The AMT313S-V provides electrical and mechanical equivalence to the AMT303-V with one critical difference: connector termination replaces terminal pins. This substitution requires interface adaptation in applications originally designed for terminal pin connections. The AMT313S-V maintains all other compatibility parameters, including 5V supply, commutation output, and programmable PPR capability. Selection of this part is appropriate only when connector termination aligns with system redesign objectives or when connector-based interfaces are already present in the application.

Compliance and Availability: Both substitute parts exceed the regulatory requirements of the original AMT303-V, offering ROHS3 compliance (versus RoHS Compliant) and active product status. Current inventory levels support immediate procurement without lead-time constraints.

Frequently Asked Questions (FAQ)

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

A: Both parts satisfy the core electrical and mechanical requirements of the AMT303-V. The AMT313Q-V provides direct substitution without interface modification due to matching terminal pin termination. The AMT313S-V requires interface adaptation due to connector termination, making it suitable only when system redesign is feasible or connector interfaces are already implemented.

Q: What does "programmable PPR" mean for the AMT313Q-V and AMT313S-V?

A: Programmable PPR allows configuration of pulses per revolution through firmware or hardware settings. For substitution purposes, both parts can be configured to 1024 PPR, matching the fixed specification of the AMT303-V. Configuration procedures must be verified against the specific application controller or interface module.

Q: Are there any supply voltage differences between the AMT303-V and its substitutes?

A: No. All three parts operate at 5V supply voltage. No power supply modifications are required when substituting the AMT303-V with either the AMT313Q-V or AMT313S-V.

Q: Why is the AMT303-V classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The AMT313Q-V and AMT313S-V represent the active product line continuation from CUI Devices, offering equivalent functionality with enhanced programmability and improved regulatory compliance.

Q: What is the difference between terminal pin and connector termination?

A: Terminal pin termination uses individual wire connections soldered or crimped directly to the encoder pins. Connector termination uses a standardized connector interface. The choice affects PCB layout, wiring harness design, and assembly procedures. The AMT313Q-V maintains terminal pin compatibility with the original AMT303-V design.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both the AMT313Q-V and AMT313S-V are ROHS3 compliant, exceeding the RoHS compliance level of the original AMT303-V. This ensures compatibility with current manufacturing and environmental regulations.