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 commutation output in a right-angle chassis mount configuration. This encoder is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar functionality.

The AMT303-V operates at 5V supply voltage with an open center actuator (2mm–8mm range) and terminal pin termination. Its primary application is in motor and chassis-mounted rotational sensing applications requiring fixed 96 PPR resolution.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 1262AMT303-V Datasheet

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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 for the AMT303-V is based on the following critical parameters that must remain consistent:

• Encoder Type: Incremental operation
• Voltage Supply: 5V
• Actuator Type: 2mm–8mm Open Center
• Mounting Type: Chassis Mount, Motors
• Orientation: Right Angle
• Output Type: Commutation output capability

The substitute parts AMT313Q-V and AMT313S-V maintain these core electrical and mechanical specifications. Both are active products from CUI Devices in the AMT31 series. The primary difference between substitutes is termination style: AMT313Q-V uses terminal pins (matching AMT303-V), while AMT313S-V uses a connector interface.

Both substitutes feature programmable pulses per revolution, allowing configuration to match the fixed 96 PPR of the original AMT303-V where system firmware supports this capability.

Parameter Comparison

Engineering Selection Recommendations

AMT313Q-V is the primary substitute for direct replacement of AMT303-V in existing designs. It maintains terminal pin termination, matching the original connector interface. Both parts share identical mechanical mounting, voltage supply, and actuator specifications. The AMT313Q-V is an active product with ROHS3 compliance, providing long-term availability and regulatory alignment superior to the obsolete AMT303-V.

AMT313S-V is suitable for new designs or redesigns where connector-based termination is acceptable. It provides the same electrical and mechanical compatibility as AMT313Q-V but uses a connector interface instead of terminal pins. This substitution requires harness or PCB redesign to accommodate the different termination style.

Both substitutes support programmable PPR configuration, enabling the fixed 96 PPR operation of the original AMT303-V through firmware or hardware configuration where supported by the host system.

Frequently Asked Questions (FAQ)

Q: Can AMT313Q-V directly replace AMT303-V without PCB modifications?

A: Yes. The AMT313Q-V maintains identical terminal pin termination, mounting type, orientation, and electrical specifications as the AMT303-V. Direct mechanical and electrical substitution is possible. Firmware configuration may be required to set the programmable PPR to 96 to match the original fixed specification.

Q: What is the key difference between AMT313Q-V and AMT313S-V?

A: The primary difference is termination style. AMT313Q-V uses terminal pins (matching AMT303-V), while AMT313S-V uses a connector interface. Both maintain identical electrical performance, mounting, and orientation. Selection depends on existing harness and PCB design compatibility.

Q: Why is the AMT303-V obsolete?

A: The AMT303-V is classified as obsolete by CUI Devices. The AMT31 series (AMT313Q-V and AMT313S-V) represents the current product line, offering programmable PPR flexibility and active manufacturing support.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both AMT313Q-V and AMT313S-V are ROHS3 compliant. The original AMT303-V is RoHS compliant. All three parts meet RoHS regulatory requirements.

Q: Can I configure AMT313Q-V or AMT313S-V to operate at 96 PPR like the AMT303-V?

A: Both substitute parts feature programmable pulses per revolution. Configuration to 96 PPR is possible where the host system supports programmable encoder setup. Consult the encoder datasheet and host system documentation for configuration procedures.

Q: What is the MSL rating for these encoders?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.