AMT303-V Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The AMT303-V is an incremental rotary encoder manufactured by CUI Devices, configured for 400 pulses per revolution with commutation output in counter-clockwise (CCW) orientation. This component is designed for chassis mount and motor applications with a right-angle orientation and 5V supply voltage. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications. Substitute encoders must maintain electrical compatibility across output type, supply voltage, mounting configuration, and mechanical interface parameters.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 1075AMT303-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 of the following critical parameters:

Mandatory Matching 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

Flexible Parameters (Substitution Allowed):

• Output Type: Commutation (fixed output configuration acceptable)
• Pulses per Revolution: Programmable PPR acceptable as substitute for fixed 400 PPR
• Termination Style: Terminal Pins or Connector acceptable
• Product Status: Active status preferred for obsolete parts

The substitute parts AMT313Q-V and AMT313S-V maintain all mandatory electrical and mechanical parameters while offering programmable pulse-per-revolution configuration, enabling system flexibility without redesign of mounting or interface circuits.

Parameter Comparison

Engineering Selection Recommendations

Both AMT313Q-V and AMT313S-V are qualified substitutes for the obsolete AMT303-V based on maintained electrical and mechanical compatibility. Selection between the two substitute options depends on termination interface requirements:

AMT313Q-V Selection Criteria:

• Maintains terminal pin termination identical to AMT303-V
• Supports direct PCB or harness connection without adapter
• Programmable PPR configuration enables system flexibility
• Active product status ensures long-term availability
• ROHS3 compliance exceeds original RoHS requirement

AMT313S-V Selection Criteria:

• Connector-based termination provides modular interface
• Programmable PPR configuration enables system flexibility
• Active product status ensures long-term availability
• ROHS3 compliance exceeds original RoHS requirement
• Connector interface may require mechanical redesign of mounting bracket

Both substitutes maintain REACH compliance and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

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

A: Both parts are electrically and mechanically compatible substitutes. The primary difference is termination style: AMT313Q-V uses terminal pins (matching AMT303-V), while AMT313S-V uses a connector interface. Selection depends on your system's connection method.

Q: What is the advantage of programmable PPR in the substitute parts?

A: The AMT313Q-V and AMT313S-V offer programmable pulses per revolution, allowing configuration to 400 PPR or other values without component replacement. This flexibility is beneficial for system upgrades or multi-application platforms.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both AMT313Q-V and AMT313S-V are ROHS3 compliant, exceeding the RoHS compliance of the original AMT303-V.

Q: Will the substitute parts fit the existing mechanical mounting?

A: Yes. Both substitutes maintain identical actuator type (2mm ~ 8mm open center), mounting type (chassis mount, motors), and orientation (right angle) as the AMT303-V. Mechanical fit is preserved. The only consideration is termination interface: AMT313Q-V maintains pin termination, while AMT313S-V requires connector accommodation.

Q: Are there any electrical interface changes required?

A: No. Both substitutes operate at 5V supply voltage with commutation output type, maintaining full electrical compatibility with existing circuits designed for AMT303-V.

Q: What is the inventory status of these substitutes?

A: AMT313Q-V has 1349 pieces in stock; AMT313S-V has 1045 pieces in stock, both as new original components.