AMT303-V Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The AMT303-V is an incremental rotary encoder manufactured by CUI Devices, configured for 512 pulses per revolution with commutation output in counter-clockwise (CCW) orientation. This encoder features a right-angle mounting configuration with a 2mm to 8mm open center actuator and operates at 5V supply voltage. The product is classified as obsolete, necessitating identification of active alternative models that maintain functional and mechanical compatibility for ongoing applications and new designs.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 808AMT303-V Datasheet

Current PartRFQ

AMT313Q-V

CUI DevicesIn Stock: 1390AMT313Q-V Datasheet

SimilarRFQ

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 that must align across candidate parts:

• Encoder Type: Incremental (required match)
• Output Type: Commutation output capability (required match)
• Voltage - Supply: 5V operation (required match)
• Actuator Type: 2mm ~ 8mm Open Center (required match)
• Mounting Type: Chassis Mount, Motors (required match)
• Orientation: Right Angle (required match)
• Pulses per Revolution: 512 fixed or programmable to 512 (acceptable match)

The substitute parts AMT313Q-V and AMT313S-V satisfy these core compatibility criteria. Both are active CUI Devices incremental encoders with commutation output, 5V supply, matching actuator and mounting specifications, and right-angle orientation. The key distinction is that these substitutes feature programmable pulse-per-revolution settings, allowing configuration to 512 PPR to match the fixed specification of the AMT303-V.

Parameter Comparison

Engineering Selection Recommendations

Both AMT313Q-V and AMT313S-V are active products with current manufacturing status, providing supply chain continuity for applications currently using the obsolete AMT303-V. Both substitutes maintain full compliance with ROHS3 standards and REACH regulations, meeting modern environmental and regulatory requirements.

The primary distinction between the two substitutes is termination style: AMT313Q-V retains terminal pin termination matching the original AMT303-V, while AMT313S-V employs connector termination. Selection between these options depends on existing circuit board design and connector infrastructure. For direct mechanical and electrical replacement with minimal redesign, AMT313Q-V is the preferred substitute. For applications where connector-based termination is acceptable or preferred, AMT313S-V provides an equivalent functional alternative.

Both substitutes feature programmable pulse-per-revolution configuration, requiring firmware or hardware setup to establish 512 PPR operation to match the fixed specification of the AMT303-V.

Frequently Asked Questions (FAQ)

Q: Can AMT313Q-V and AMT313S-V directly replace AMT303-V without circuit modifications?

A: Both substitutes share identical electrical specifications (5V supply, commutation output, incremental encoder type) and mechanical mounting characteristics (right-angle orientation, chassis mount, 2mm–8mm open center actuator). AMT313Q-V maintains terminal pin termination identical to AMT303-V, enabling direct board-level replacement. AMT313S-V requires connector compatibility assessment due to its connector-based termination style.

Q: What is the functional difference between fixed 512 PPR and programmable PPR?

A: The AMT303-V provides fixed 512 pulses per revolution. The AMT313Q-V and AMT313S-V offer programmable PPR settings, allowing configuration to 512 PPR or alternative values depending on application requirements. For AMT303-V replacement, these substitutes must be programmed to 512 PPR during integration.

Q: Are there packaging differences between the substitute parts?

A: AMT313Q-V and AMT313S-V are supplied in box packaging. Packaging format does not affect functional or mechanical compatibility for component-level substitution.

Q: Do the substitute parts maintain the same RoHS compliance level?

A: The AMT303-V is RoHS Compliant. Both AMT313Q-V and AMT313S-V are ROHS3 Compliant, representing an enhanced compliance standard. This upgrade in certification status meets or exceeds the original product's environmental requirements.

Q: Which substitute should be selected for new designs?

A: For new designs, either AMT313Q-V or AMT313S-V is appropriate based on termination style requirements. Both are active products with established supply availability. Terminal pin termination (AMT313Q-V) is recommended for designs requiring direct compatibility with existing AMT303-V circuit layouts.