SM91073AL-E Equivalent & Substitute Parts

Part Overview

The SM91073AL-E is a Pulse Transformer manufactured by Bourns, Inc., designed for 10 Base-T applications. This component is classified as Obsolete, which necessitates identification of suitable substitute parts for ongoing design requirements and procurement needs. The obsolete status requires engineers to evaluate compatible alternatives that maintain functional equivalence within the specified electrical and mechanical parameters.

Substiute Parts

SM91073AL-E
Bourns, Inc.In Stock: 4028SM91073AL-E Datasheet
SM91073AL-E
Current Part
SM91072AL-E
Bourns, Inc.In Stock: 3097SM91072AL-E Datasheet
SM91072AL-E
MFR Recommended

Key Parameters

Parameter SM91073AL-E
Manufacturer Bourns, Inc.
Packaging Tape & Reel (TR)
Description XFRMR PULSE 10 BASE-T
Product Status Obsolete
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS Code 8504.31.2000

Substitute Part Grouping Explanation

The SM91072AL-E is identified as a manufacturer-recommended substitute for the SM91073AL-E. Substitution compatibility is determined by the following criteria:

  • Manufacturer alignment: Both parts are manufactured by Bourns, Inc.
  • Regulatory compliance: Both parts maintain ROHS3 Compliant status and REACH Unaffected designation
  • Moisture sensitivity: Both parts share MSL 1 (Unlimited) classification
  • Trade classification: Both parts share identical HTSUS code 8504.31.2000
  • Application category: Both are pulse transformers for Base-T network applications
  • Packaging compatibility: The substitute is available in Cut Tape (CT) & Digi-Reel® format, suitable for automated assembly processes

Parameter Comparison

Parameter SM91073AL-E SM91072AL-E
Manufacturer Bourns, Inc. Bourns, Inc.
Product Status Obsolete Active
Packaging Tape & Reel (TR) Cut Tape (CT) & Digi-Reel®
Description XFRMR PULSE 10 BASE-T XFMR LAN 10/100 BASE-T 1:1 350UH
Transformer Type Not specified LAN 10/100 Base-T
Inductance Not specified 350µH
Turns Ratio (Primary:Secondary) Not specified 1:1
Mounting Type Not specified Surface Mount
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99
HTSUS Code 8504.31.2000 8504.31.2000

Engineering Selection Recommendations

The SM91072AL-E is the manufacturer-recommended substitute for the obsolete SM91073AL-E. Selection of this substitute is supported by:

  • Active product status: The SM91072AL-E maintains Active status, ensuring continued availability and manufacturer support
  • Regulatory compliance: Both parts maintain identical ROHS3 Compliant and REACH Unaffected designations, satisfying regulatory requirements
  • Certification: The SM91072AL-E carries AEC-Q200 automotive qualification, providing additional reliability assurance
  • Packaging flexibility: The substitute is available in Cut Tape (CT) & Digi-Reel® format, accommodating both manual and automated assembly workflows
  • Compliance consistency: Both parts share identical ECCN and HTSUS classifications, maintaining trade compliance alignment

Frequently Asked Questions (FAQ)

Q: Why is the SM91073AL-E classified as Obsolete? A: The SM91073AL-E has reached end-of-life status. The manufacturer recommends transitioning to the SM91072AL-E for new designs and ongoing procurement.

Q: What are the key differences between SM91073AL-E and SM91072AL-E? A: The primary differences are product status (Obsolete vs. Active), packaging format (Tape & Reel vs. Cut Tape & Digi-Reel®), and specified electrical parameters. The SM91072AL-E provides documented inductance (350µH), turns ratio (1:1), and operating temperature range (-40°C ~ 125°C).

Q: Are both parts compliant with current regulatory standards? A: Yes. Both the SM91073AL-E and SM91072AL-E are ROHS3 Compliant, REACH Unaffected, and classified under identical HTSUS code 8504.31.2000.

Q: What is the moisture sensitivity level for these parts? A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can the SM91072AL-E be used in automated assembly processes? A: Yes. The SM91072AL-E is available in Cut Tape (CT) & Digi-Reel® packaging, which is compatible with standard automated component placement equipment.

Q: Does the SM91072AL-E carry automotive qualification? A: Yes. The SM91072AL-E is qualified to AEC-Q200 automotive standards, providing additional reliability assurance for automotive applications.

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