MIC2550ABML-TR Equivalent & Substitute Parts

Part Overview

The MIC2550ABML-TR is a USB 2.0 half-duplex transceiver IC manufactured by Microchip Technology, housed in a 16-MLF® (4x4) surface mount package. This component is classified as discontinued at DiGi Electronics, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and production continuity. The part operates across a 4V to 5.25V supply range with a 12Mbps data rate and 200mV receiver hysteresis, making it suitable for USB 2.0 interface applications requiring half-duplex transceiver functionality.

Substiute Parts

MIC2550ABML-TR

Microchip TechnologyIn Stock: 6023MIC2550ABML-TR Datasheet

Current PartRFQ

MIC2550AYML-TR

Microchip TechnologyIn Stock: 2383MIC2550AYML-TR Datasheet

Parametric EquivalentRFQ

MIC2551AYML-TR

Microchip TechnologyIn Stock: 843MIC2551AYML-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC2550ABML-TR is determined by strict alignment of the following critical parameters:

• Protocol: USB 2.0
• Type: Transceiver
• Number of Drivers/Receivers: 1/1
• Duplex: Half
• Data Rate: 12Mbps
• Receiver Hysteresis: 200 mV
• Voltage - Supply: 4V ~ 5.25V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-VQFN Exposed Pad, 16-MLF®
• Mounting Type: Surface Mount

The identified substitute parts MIC2550AYML-TR and MIC2551AYML-TR satisfy all electrical and mechanical parameters required for functional equivalence. Variations in packaging format (Cut Tape vs. Tape & Reel), product status, RoHS compliance, and moisture sensitivity level do not affect electrical interchangeability but may impact procurement, storage, and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

MIC2550AYML-TR is the primary substitute for the MIC2550ABML-TR. Both parts share identical electrical specifications and package geometry. The MIC2550AYML-TR carries Active product status, ensuring long-term availability and supply chain stability. It achieves ROHS3 compliance, meeting current regulatory requirements for new designs. The transition from Tape & Reel to Cut Tape packaging requires evaluation of assembly line compatibility and inventory management procedures.

MIC2551AYML-TR is a secondary equivalent option. While electrically and mechanically compatible, its Obsolete product status presents supply chain risk. The elevated Moisture Sensitivity Level (MSL 3, 168 hours) imposes stricter handling and storage requirements compared to the original part (MSL 1, unlimited). This part is suitable only when supply constraints necessitate its use and when storage conditions can accommodate the reduced moisture tolerance window.

For new designs or production continuity, MIC2550AYML-TR is the recommended selection based on Active status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can MIC2550AYML-TR be used as a direct replacement for MIC2550ABML-TR?

A: Yes. Both parts are electrically and mechanically identical. The primary differences are product status (Active vs. Discontinued), RoHS compliance (ROHS3 vs. non-compliant), and packaging format (Cut Tape vs. Tape & Reel). Pin configuration, electrical performance, and package dimensions are equivalent.

Q: What is the impact of changing from Tape & Reel to Cut Tape packaging?

A: Cut Tape packaging requires manual handling or alternative feeding mechanisms during assembly. Tape & Reel format is optimized for automated pick-and-place equipment. Verify that your assembly process supports Cut Tape format before transitioning to MIC2550AYML-TR.

Q: Why does MIC2551AYML-TR have a higher Moisture Sensitivity Level?

A: MSL 3 (168 hours) indicates stricter moisture exposure limits compared to MSL 1 (unlimited). Components with higher MSL ratings require baking before reflow soldering if exposed to ambient humidity for extended periods. This increases handling complexity and storage costs.

Q: Is MIC2551AYML-TR suitable for production use?

A: MIC2551AYML-TR is electrically compatible but carries Obsolete status, indicating discontinued manufacturing. Use only when MIC2550AYML-TR is unavailable and supply chain risk is acceptable. Verify long-term availability before committing to production designs.

Q: What are the RoHS compliance implications?

A: MIC2550ABML-TR is RoHS non-compliant. MIC2550AYML-TR and MIC2551AYML-TR are ROHS3 compliant. If your application or market requires RoHS compliance, transition to MIC2550AYML-TR or MIC2551AYML-TR. Verify that your complete bill of materials meets applicable RoHS requirements.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. All three parts operate identically across the specified voltage range (4V ~ 5.25V), temperature range (-40°C ~ 85°C), and data rate (12Mbps). Receiver hysteresis (200mV) and all electrical characteristics are identical.