AMT303-V Rotary Encoder: Equivalent & Substitute Parts

Part Overview

The AMT303-V is an incremental rotary encoder manufactured by CUI Devices, configured for 1000 pulses per revolution with commutation output in counter-clockwise direction. The encoder features a right-angle orientation with a 2mm to 8mm open center actuator and operates at 5V supply voltage. This part 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: 792AMT303-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 of the AMT303-V is determined by the following critical parameters that must align across alternative models:

• Encoder Type: Incremental operation required
• Supply Voltage: 5V operation mandatory
• Actuator Type: 2mm to 8mm open center configuration
• Mounting Type: Chassis mount and motor mounting compatibility
• Orientation: Right angle form factor
• Output Type: Commutation output with compatible pole configuration
• Termination Style: Connection method compatibility

The substitute parts AMT313Q-V and AMT313S-V are qualified alternatives because they maintain identical specifications for encoder type, supply voltage, actuator type, mounting type, orientation, and output type. Both substitutes feature programmable pulses per revolution, which encompasses the fixed 1000 PPR specification of the AMT303-V. The primary distinction between substitutes is termination style: AMT313Q-V uses terminal pins (matching the original), while AMT313S-V uses a connector interface.

Parameter Comparison

Engineering Selection Recommendations

Both AMT313Q-V and AMT313S-V are active products with current manufacturing status, providing supply continuity for applications currently using the obsolete AMT303-V. Both substitutes maintain full compliance with RoHS3 and REACH regulations, meeting modern environmental and safety standards.

AMT313Q-V is the direct functional equivalent when terminal pin termination is required. The programmable pulses per revolution feature allows configuration to the 1000 PPR specification of the original part, maintaining signal resolution compatibility with existing system designs.

AMT313S-V provides identical functional specifications with connector-based termination. This variant is suitable for applications where connector interfaces are preferred or where system redesign accommodates the alternative termination method.

Selection between the two substitutes depends solely on termination interface requirements of the target application. Both parts satisfy the core electrical, mechanical, and compliance parameters of the AMT303-V.

Frequently Asked Questions (FAQ)

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

A: Both substitutes maintain identical encoder type, supply voltage, actuator configuration, mounting type, and orientation. The primary difference is termination style. AMT313Q-V uses terminal pins matching the original; AMT313S-V uses a connector. Selection depends on the termination interface required by your application.

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

A: The AMT313Q-V and AMT313S-V feature programmable PPR, allowing configuration to match the 1000 PPR specification of the AMT303-V. This ensures signal resolution compatibility with existing system designs and control algorithms.

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

A: The AMT303-V carries RoHS Compliant status, while both substitutes are ROHS3 Compliant, representing an updated compliance standard. Both substitutes maintain REACH Unaffected status identical to the original part. All three parts have MSL rating of 1 (Unlimited).

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

A: Obsolete status indicates the part is no longer in active production. The AMT313 series represents the current active product line from CUI Devices for this encoder category, providing equivalent functionality with modern compliance certifications.

Q: What is the inventory status of these parts?

A: The AMT303-V has 767 pieces available as new original stock. AMT313Q-V has 1349 pieces in stock, and AMT313S-V has 1045 pieces in stock, providing adequate supply for transition planning.

Q: Does termination style affect electrical performance?

A: Termination style affects physical integration and connection methodology but does not alter the electrical output characteristics, signal timing, or voltage specifications. Selection should be based on PCB layout and connector availability in your design.