AMT303-V Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The AMT303-V is an incremental rotary encoder manufactured by CUI Devices with 192 pulses per revolution (PPR) and 6-pole commutation output in a right-angle orientation. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The encoder operates at 5V supply voltage with a 2mm to 8mm open center actuator and chassis mount configuration suitable for motor applications.

Substiute Parts

AMT303-V

CUI DevicesIn Stock: 929AMT303-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 selected based on the following critical parameters that must remain consistent:

• Encoder Type: Incremental
• Output Type: Commutation
• Supply Voltage: 5V
• Actuator Type: 2mm ~ 8mm Open Center
• Mounting Type: Chassis Mount, Motors
• Orientation: Right Angle
• Manufacturer: CUI Devices (same product family)
• RoHS Compliance: Required

The AMT313Q-V and AMT313S-V are qualified substitutes because they maintain these core electrical and mechanical specifications. Both parts feature programmable pulses per revolution, which provides functional equivalence to the fixed 192 PPR configuration of the AMT303-V when programmed to 192 PPR. The primary difference between substitute options is the termination style: AMT313Q-V uses terminal pins (matching the original), while AMT313S-V uses a connector interface.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the AMT303-V, the AMT313Q-V is the primary substitute due to identical termination style (terminal pins), ensuring direct compatibility with existing PCB layouts and connector designs. Both substitute parts are active products with current manufacturing support and ROHS3 compliance, providing long-term supply chain stability compared to the obsolete AMT303-V.

The AMT313S-V offers an alternative for designs that can accommodate connector-based termination, providing the same electrical functionality with a different physical interface. Selection between AMT313Q-V and AMT313S-V depends on the mechanical integration requirements of the target application.

Frequently Asked Questions (FAQ)

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

A: The AMT313Q-V provides direct replacement capability for terminal pin applications. The AMT313S-V requires connector accommodation in the design. Both maintain the same electrical specifications (5V supply, incremental output, commutation type) and mechanical form factor (right angle, 2mm-8mm actuator, chassis mount).

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

A: The AMT313Q-V and AMT313S-V feature programmable PPR configuration, allowing the encoder to be set to 192 PPR to match the fixed 192 PPR specification of the AMT303-V. This programmability provides functional equivalence while offering flexibility for future applications requiring different PPR values.

Q: Are there differences in RoHS compliance between the main part and substitutes?

A: The AMT303-V carries RoHS Compliant status, while both substitutes (AMT313Q-V and AMT313S-V) carry ROHS3 Compliant status. ROHS3 represents an updated compliance standard and is acceptable for applications requiring RoHS compliance.

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

A: The termination style differs: AMT313Q-V uses terminal pins (matching the AMT303-V), while AMT313S-V uses a connector interface. All other electrical and mechanical parameters remain identical.

Q: Why is the AMT303-V classified as obsolete?

A: The AMT303-V is no longer in active production. The AMT313 series (AMT313Q-V and AMT313S-V) represents the current generation of equivalent encoders from CUI Devices with enhanced features including programmable PPR configuration.