MIC5239-5.0BMM Equivalent & Substitute Parts

Part Overview

The MIC5239-5.0BMM is a linear voltage regulator IC from Microchip Technology designed for positive fixed 5V output applications with 500mA current capacity. This device operates across a wide input voltage range up to 30V and includes integrated protection features for over-current, over-temperature, over-voltage, and reverse polarity conditions. The part is currently discontinued at DiGi Electronics, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

MIC5239-5.0BMM

Microchip TechnologyIn Stock: 1083MIC5239-5.0BMM Datasheet

Current PartRFQ

MIC5239-5.0YMM

Microchip TechnologyIn Stock: 2883MIC5239-5.0YMM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC5239-5.0BMM is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 5V fixed
• Maximum output current: 500mA
• Input voltage range: up to 30V maximum
• Voltage dropout characteristics: 0.35V @ 500mA (Typ)
• Quiescent current: 45 µA
• Protection feature set: Over Current, Over Temperature, Over Voltage, Reverse Polarity
• Operating temperature range: -40°C ~ 125°C
• Package type: 8-MSOP (0.118", 3.00mm Width)
• Mounting configuration: Surface Mount

The MIC5239-5.0YMM qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is packaging format (Bulk versus Tube) and product status (Discontinued versus Active).

Parameter Comparison

Engineering Selection Recommendations

The MIC5239-5.0YMM is the direct functional equivalent of the MIC5239-5.0BMM. Both parts share identical electrical specifications, performance characteristics, and physical package dimensions. Selection between these parts should be based on the following factors:

Product Status: The MIC5239-5.0YMM maintains Active status, ensuring continued availability and manufacturer support. The MIC5239-5.0BMM is Discontinued at DiGi Electronics, limiting future procurement options.

Regulatory Compliance: The MIC5239-5.0YMM is ROHS3 Compliant, meeting current environmental and regulatory requirements. The MIC5239-5.0BMM is RoHS non-compliant, which may present compliance challenges for new designs or applications subject to RoHS directives.

Packaging and Supply Chain: The MIC5239-5.0YMM is supplied in Tube packaging with significantly higher inventory availability (2800 Pcs versus 992 Pcs), supporting both prototype and production-volume requirements.

For new designs or production continuity, the MIC5239-5.0YMM is the appropriate selection. For existing applications currently using the MIC5239-5.0BMM, direct substitution with the MIC5239-5.0YMM is electrically and mechanically compatible without circuit modification.

Frequently Asked Questions (FAQ)

Q: Are the MIC5239-5.0BMM and MIC5239-5.0YMM electrically interchangeable?

A: Yes. Both parts deliver identical electrical performance across all specified parameters including output voltage, current capacity, dropout voltage, quiescent current, protection features, and operating temperature range. No circuit modifications are required for substitution.

Q: What is the difference between Bulk and Tube packaging?

A: Bulk packaging is used for component storage and handling in larger quantities without individual packaging. Tube packaging places components in protective plastic tubes, typically used for automated assembly processes and smaller order quantities. Both packaging formats contain the same component.

Q: Does the RoHS compliance difference affect circuit performance?

A: RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts function identically in circuit applications. However, RoHS3 compliance of the MIC5239-5.0YMM aligns with current regulatory requirements for many industries and markets.

Q: Can I use the MIC5239-5.0YMM as a direct replacement in existing PCB designs?

A: Yes. The MIC5239-5.0YMM is pin-compatible and package-compatible with the MIC5239-5.0BMM. No PCB layout modifications are necessary. The part can be directly substituted in existing designs without functional or mechanical impact.

Q: Why is the MIC5239-5.0BMM discontinued?

A: Product discontinuation decisions are made by manufacturers based on market demand, product lifecycle management, and supply chain optimization. The MIC5239-5.0YMM remains the active equivalent from Microchip Technology for this specification class.