AMT303-V Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The AMT303-V is an incremental rotary encoder manufactured by CUI Devices, featuring 96 pulses per revolution with 12-pole commutation output in a right-angle chassis mount configuration. This encoder is designed for motor and chassis-mounted applications requiring precise rotational feedback at 5V supply voltage.

The AMT303-V is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this encoder specification remains functionally required.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 1224AMT303-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 strict alignment with the following critical parameters:

• Encoder Type: Incremental (required match)
• Voltage Supply: 5V (required match)
• Mounting Type: Chassis Mount, Motors (required match)
• Orientation: Right Angle (required match)
• Actuator Type: 2mm ~ 8mm Open Center (required match)
• Output Type: Commutation (required match)
• Termination Style: Compatible electrical interface

The substitute parts AMT313Q-V and AMT313S-V meet these core functional requirements. Both are active-status CUI Devices encoders with programmable pulses per revolution, allowing configuration to match the 96 PPR specification of the AMT303-V. Both maintain identical supply voltage, mounting configuration, orientation, and actuator specifications.

Parameter Comparison

Engineering Selection Recommendations

Both AMT313Q-V and AMT313S-V are suitable substitutes for the obsolete AMT303-V based on functional parameter alignment and active product status.

AMT313Q-V features terminal pin termination, matching the original AMT303-V termination style. This encoder is ROHS3 compliant and maintains full electrical and mechanical compatibility with the original specification when programmed to 96 PPR output.

AMT313S-V features connector termination instead of terminal pins. This encoder is also ROHS3 compliant and functionally equivalent when configured to 96 PPR. The connector termination style represents a design enhancement over the original terminal pin interface, offering improved mating reliability in production environments.

Both substitute parts carry REACH Unaffected and EAR99 export classification status, matching the regulatory profile of the original part. Selection between AMT313Q-V and AMT313S-V depends on termination style requirements within the target application.

Frequently Asked Questions (FAQ)

Q: Can AMT313Q-V and AMT313S-V be directly substituted for AMT303-V without design modification?

A: Both encoders match the critical functional parameters of the AMT303-V: incremental encoder type, 5V supply, right-angle chassis mount orientation, 2mm–8mm open center actuator, and commutation output. The primary design consideration is termination style. AMT313Q-V uses terminal pins (matching AMT303-V), while AMT313S-V uses a connector interface. If the application circuit is designed for terminal pin connections, AMT313Q-V provides direct substitution. If connector termination is acceptable or preferred, AMT313S-V is suitable.

Q: What is the significance of programmable pulses per revolution in the substitute parts?

A: The AMT303-V provides fixed 96 PPR output. The AMT313Q-V and AMT313S-V feature programmable PPR capability, allowing configuration to 96 PPR to match the original specification. This programmability provides design flexibility for future applications while maintaining compatibility with existing 96 PPR system requirements.

Q: Are there compliance or regulatory differences between the original and substitute parts?

A: The AMT303-V is RoHS Compliant. Both substitute parts are ROHS3 Compliant, representing an enhanced compliance standard. All three encoders maintain REACH Unaffected status and EAR99 export classification. The substitute parts meet or exceed the regulatory requirements of the original part.

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

A: Terminal pins provide direct solder or wire connection to the encoder output. Connector termination uses a mated connector interface. Terminal pin termination (AMT313Q-V) is appropriate for applications with existing terminal pin circuit designs. Connector termination (AMT313S-V) offers improved mating reliability and is preferred in high-volume production environments where connector repeatability is critical.

Q: Are both substitute parts currently available?

A: Yes. AMT313Q-V has 1349 pieces in stock. AMT313S-V has 1045 pieces in stock. Both are active-status products from CUI Devices.