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 compatible substitute parts 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 functional and mechanical compatibility.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 915AMT303-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

Substitute parts for the AMT303-V are identified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Criteria:

• 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

Substitution Logic: The AMT313Q-V and AMT313S-V are qualified substitutes because they maintain all core mechanical and electrical parameters. Both parts feature programmable pulses per revolution, which encompasses the fixed 1024 PPR specification of the AMT303-V. The primary distinction between substitutes is termination style: AMT313Q-V uses terminal pins (matching AMT303-V), while AMT313S-V uses connector termination.

Parameter Comparison

Engineering Selection Recommendations

AMT313Q-V Selection: The AMT313Q-V is the primary substitute for direct replacement applications. It maintains terminal pin termination identical to the AMT303-V, ensuring compatibility with existing connector designs. The part is currently active in production with ROHS3 compliance, providing long-term availability and regulatory alignment. Programmable pulses per revolution capability allows configuration to the required 1024 PPR specification.

AMT313S-V Selection: The AMT313S-V is suitable for applications where connector termination is acceptable or preferred. This part offers the same electrical and mechanical compatibility as AMT313Q-V but requires interface modification due to connector-based termination. Active product status and ROHS3 compliance apply equally.

Both substitutes provide superior regulatory compliance (ROHS3 vs. RoHS Compliant) and active product status, eliminating obsolescence risk associated with the AMT303-V.

Frequently Asked Questions (FAQ)

Q: Can AMT313Q-V and AMT313S-V be used interchangeably with AMT303-V? A: Both parts maintain the same electrical specifications (5V supply, incremental encoder type, commutation output) and mechanical parameters (right-angle orientation, chassis mount, open center actuator). The primary difference is termination style: AMT313Q-V uses terminal pins (matching AMT303-V), while AMT313S-V uses connector termination. Selection depends on existing connector compatibility.

Q: What is the significance of programmable pulses per revolution in the substitute parts? A: The AMT313Q-V and AMT313S-V feature programmable PPR, which can be configured to 1024 PPR to match the fixed specification of the AMT303-V. This flexibility provides functional equivalence while offering broader application support.

Q: Are there compliance differences between the main part and substitutes? A: The AMT303-V carries RoHS Compliant status, while both substitutes are ROHS3 Compliant. ROHS3 represents a more recent regulatory standard. Both parts maintain REACH Unaffected status. The substitutes provide enhanced regulatory alignment for new designs and long-term procurement.

Q: Why is the AMT303-V classified as obsolete? A: Obsolete status indicates the part is no longer in active production. The AMT313Q-V and AMT313S-V are active alternatives that provide equivalent functionality with improved availability and regulatory compliance.

Q: Does termination style affect electrical performance? A: Termination style affects physical interface compatibility but not electrical performance. Terminal pin termination (AMT313Q-V) requires direct soldering or pin-based connectors, while connector termination (AMT313S-V) uses a mated connector interface. Selection should align with existing PCB or harness design.