ALAN-101 LAN Transformer Equivalent & Substitute Parts

Part Overview

The ALAN-101 is a 350µH LAN 10/100 Base-T Pulse Transformer manufactured by Abracon LLC, designed for 10/100 Mbps Ethernet applications. It features a 1CT:1CT turns ratio configuration in a surface mount package with external temperature rating capability (-40°C to 85°C). The part is currently discontinued at DiGi Electronics, making substitute sourcing necessary for ongoing production and maintenance applications.

Substiute Parts

ALAN-101

Abracon LLCIn Stock: 996ALAN-101 Datasheet

Current PartRFQ

ALAN-101-T

Abracon LLCIn Stock: 9255ALAN-101-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALAN-101 is determined by strict equivalence across the following critical parameters:

• Transformer Type: Must be LAN 10/100 Base-T
• Inductance: Must be 350µH
• Turns Ratio: Must be 1CT:1CT
• Mounting Type: Must be Surface Mount
• Physical Dimensions: Must match 0.450" L x 0.265" W (11.43mm x 6.73mm) and height ≤ 0.217" (5.51mm)
• Operating Temperature Range: Must support -40°C ~ 85°C
• Compliance: Must maintain ROHS3 compliance and MSL 2 rating

The ALAN-101-T qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is packaging format.

Parameter Comparison

Engineering Selection Recommendations

The ALAN-101-T is the direct equivalent for ALAN-101 applications. All electrical and mechanical parameters are identical, ensuring functional compatibility in LAN 10/100 Base-T transformer circuits. The ALAN-101-T maintains active product status with Abracon LLC and carries full ROHS3 compliance and MSL 2 certification.

The primary distinction between the two parts is packaging format: ALAN-101 is supplied in bulk packaging, while ALAN-101-T is supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical performance or mechanical fit on PCBs. Selection between these parts should be based on procurement requirements and assembly process compatibility.

Frequently Asked Questions (FAQ)

Q: Can ALAN-101-T replace ALAN-101 in existing designs?

A: Yes. The ALAN-101-T is electrically and mechanically identical to the ALAN-101. All critical parameters—inductance, turns ratio, operating temperature range, physical dimensions, and compliance certifications—are equivalent. Direct substitution is valid for PCB assembly and circuit operation.

Q: What is the difference between ALAN-101 and ALAN-101-T?

A: The parts are functionally identical. The suffix "-T" indicates Tape & Reel packaging format, whereas the base ALAN-101 is supplied in bulk packaging. This distinction affects only procurement and assembly handling, not electrical or mechanical performance.

Q: Are there any compatibility concerns with Tape & Reel packaging?

A: No. Tape & Reel packaging is standard for automated assembly processes and is fully compatible with pick-and-place equipment. The component itself is identical to the bulk-packaged version once removed from the carrier tape.

Q: Does the ALAN-101-T meet the same compliance requirements?

A: Yes. The ALAN-101-T carries identical ROHS3 compliance, REACH Unaffected status, and MSL 2 (1 Year) moisture sensitivity rating as the ALAN-101.

Q: Why is ALAN-101 discontinued?

A: The ALAN-101 is discontinued at DiGi Electronics. The ALAN-101-T remains in active production and is the recommended source for this transformer specification.