AS5145B-HSST-500 Rotary Encoder Magnetic 4096PPR Equivalent & Substitute Parts

Part Overview

The AS5145B-HSST-500 is a surface-mount magnetic rotary encoder manufactured by ams-OSRAM USA INC. with 4096 pulses per revolution and quadrature (incremental) output. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The encoder operates across dual voltage ranges (3V–3.6V and 4.5V–5.5V) and meets automotive-grade specifications with AEC-Q100 qualification.

Substiute Parts

AS5145B-HSST-500

ams-OSRAM USA INC.In Stock: 800AS5145B-HSST-500 Datasheet

Current PartRFQ

AS5145B-HSSM

ams-OSRAM USA INC.In Stock: 6217AS5145B-HSSM Datasheet

SimilarRFQ

AS5145B-HSST

ams-OSRAM USA INC.In Stock: 18373AS5145B-HSST Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AS5145B-HSST-500 is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Encoder Type: Magnetic
• Output Type: Quadrature (Incremental)
• Pulses per Revolution: 4096
• Voltage Supply Range: 3V–3.6V, 4.5V–5.5V
• Mounting Type: Surface Mount
• Termination Style: SMD (SMT) Tab
• Grade: Automotive
• Qualification: AEC-Q100

Acceptable Variation:

• Product Status: Active alternatives are preferred to obsolete parts
• Packaging: Variation in packaging format (bulk vs. Tape & Reel) does not affect functional compatibility

The identified substitute parts AS5145B-HSSM and AS5145B-HSST satisfy all mandatory matching parameters and are classified as active products, making them suitable replacements for the obsolete AS5145B-HSST-500.

Parameter Comparison

Engineering Selection Recommendations

AS5145B-HSSM is the primary recommended substitute for AS5145B-HSST-500. This part maintains identical functional and electrical specifications while offering active product status and RoHS compliance. The AS5145B-HSSM is currently in production with substantial inventory availability (6188 pcs), ensuring supply chain continuity for new designs and production runs.

AS5145B-HSST serves as a secondary alternative with equivalent technical specifications. This variant is available in Tape & Reel packaging format and maintains active product status with higher inventory levels (18300 pcs). The packaging difference does not affect functional performance and may provide cost or logistics advantages depending on procurement volume requirements.

Both substitute parts carry identical automotive-grade certification (AEC-Q100) and moisture sensitivity ratings, confirming suitability for applications requiring the original AS5145B-HSST-500 specifications.

Frequently Asked Questions (FAQ)

Q: Can AS5145B-HSSM and AS5145B-HSST be used interchangeably with AS5145B-HSST-500?

A: Yes. Both substitute parts match all mandatory electrical and mechanical parameters: 4096 PPR magnetic quadrature output, dual voltage supply ranges (3V–3.6V and 4.5V–5.5V), surface-mount SMD termination, automotive grade, and AEC-Q100 qualification. The functional performance is identical.

Q: What is the difference between AS5145B-HSSM and AS5145B-HSST?

A: The primary difference is packaging format. AS5145B-HSST is supplied in Tape & Reel (TR) format, while AS5145B-HSSM packaging is not specified. Both parts are electrically and mechanically identical. Selection depends on procurement requirements and assembly process compatibility.

Q: Why is the original AS5145B-HSST-500 classified as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. Active alternatives (AS5145B-HSSM and AS5145B-HSST) are available from the same manufacturer with identical specifications, ensuring design continuity without functional compromise.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both AS5145B-HSSM and AS5145B-HSST are RoHS Compliant. The original AS5145B-HSST-500 RoHS status was not specified in available documentation.

Q: Do the substitute parts maintain AEC-Q100 automotive qualification?

A: Yes. Both substitute parts carry AEC-Q100 qualification and automotive-grade classification, matching the original part's automotive specifications.

Q: What is the moisture sensitivity level for these encoders?

A: All three parts (main and substitutes) have Moisture Sensitivity Level 3 (168 Hours), indicating identical handling and storage requirements during manufacturing and assembly.