AS5306A-ATST Rotary Encoder Magnetic 1280PPR Equivalent & Substitute Parts

Part Overview

The AS5306A-ATST is a magnetic rotary encoder manufactured by ams-OSRAM USA INC. that provides 1280 pulses per revolution with quadrature (incremental) output. This surface mount device operates within a 4.5V to 5.5V supply voltage range and utilizes an external magnet actuator for position sensing.

The AS5306A-ATST carries an Obsolete product status. Locating equivalent substitute components is necessary for ongoing production support, maintenance applications, and design continuity where this encoder is currently deployed.

Substiute Parts

AS5306A-ATST
ams-OSRAM USA INC.In Stock: 977AS5306A-ATST Datasheet
AS5306A-ATST
Current Part
AS5304A-ATSM
ams-OSRAM USA INC.In Stock: 3028AS5304A-ATSM Datasheet
AS5304A-ATSM
Similar

Key Parameters

Parameter Value
Encoder Type Magnetic
Output Type Quadrature (Incremental)
Pulses per Revolution 1280
Voltage - Supply 4.5V ~ 5.5V
Actuator Type External Magnet, Not Included
Mounting Type Surface Mount
Termination Style SMD (SMT) Tab
Detent No
Built in Switch No
RoHS Status RoHS Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the AS5306A-ATST is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

  • Encoder Type: Magnetic
  • Output Type: Quadrature (Incremental)
  • Pulses per Revolution: 1280
  • Voltage - Supply: 4.5V ~ 5.5V
  • Actuator Type: External Magnet, Not Included
  • Mounting Type: Surface Mount
  • Termination Style: SMD (SMT) Tab

The AS5304A-ATSM qualifies as a substitute part because it maintains identical specifications across all mandatory parameters. Differences in packaging format (Tape & Reel versus alternative packaging) and product status do not affect functional compatibility in applications where the AS5306A-ATST is currently specified.

Parameter Comparison

Parameter AS5306A-ATST (Main Part) AS5304A-ATSM (Substitute)
Manufacturer ams-OSRAM USA INC. ams-OSRAM USA INC.
Encoder Type Magnetic Magnetic
Output Type Quadrature (Incremental) Quadrature (Incremental)
Pulses per Revolution 1280 1280
Voltage - Supply 4.5V ~ 5.5V 4.5V ~ 5.5V
Actuator Type External Magnet, Not Included External Magnet, Not Included
Mounting Type Surface Mount Surface Mount
Termination Style SMD (SMT) Tab SMD (SMT) Tab
Detent No No
Built in Switch No No
RoHS Status RoHS Compliant RoHS Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours)
Product Status Obsolete Not For New Designs
Packaging SMD (SMT) Tab Tape & Reel (TR)

Engineering Selection Recommendations

The AS5304A-ATSM serves as a direct functional substitute for the AS5306A-ATST in applications requiring a 1280 PPR magnetic rotary encoder with quadrature output and 4.5V to 5.5V operation.

Both parts maintain RoHS Compliance and identical MSL ratings, ensuring compatibility with standard surface mount assembly processes and environmental requirements. The AS5304A-ATSM is available in Tape & Reel packaging format, which differs from the main part's packaging specification but does not affect electrical or mechanical performance.

Selection between these parts should be based on packaging availability and procurement requirements. The AS5304A-ATSM offers higher current inventory availability (2969 pieces) compared to the AS5306A-ATST (945 pieces).

Frequently Asked Questions (FAQ)

Q: Can the AS5304A-ATSM replace the AS5306A-ATST in existing designs?

A: Yes. Both encoders share identical electrical specifications, output characteristics, and mechanical mounting requirements. The AS5304A-ATSM is functionally equivalent for all applications currently using the AS5306A-ATST.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. The AS5306A-ATST uses standard SMD (SMT) Tab packaging, while the AS5304A-ATSM is supplied in Tape & Reel format. Electrical and mechanical specifications are identical.

Q: Are there any supply chain considerations?

A: The AS5304A-ATSM has significantly higher inventory availability (2969 pieces) versus the AS5306A-ATST (945 pieces). For production continuity, the AS5304A-ATSM may offer better long-term supply assurance.

Q: Do both parts require the same external magnet?

A: Yes. Both encoders use an external magnet actuator that is not included with the component. The same magnet specification applies to both parts.

Q: Are there any compliance differences?

A: No. Both parts maintain identical RoHS Compliance, REACH Unaffected status, and Moisture Sensitivity Level (MSL 3, 168 Hours) ratings.

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