MIC5239BM Equivalent & Substitute Parts

Part Overview

The MIC5239BM is a linear voltage regulator IC from Microchip Technology designed for positive adjustable output applications. It delivers 500mA output current with an adjustable output voltage range from 1.24V to 20V, suitable for general-purpose power management in surface-mount applications. The MIC5239BM is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

MIC5239BM

Microchip TechnologyIn Stock: 1062MIC5239BM Datasheet

Current PartRFQ

MIC5239YM

Microchip TechnologyIn Stock: 2970MIC5239YM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MIC5239BM is determined by strict equivalence across the following critical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Voltage specifications (Input Max: 30V, Output range: 1.24V–20V)
• Current rating (500mA output)
• Dropout voltage (0.35V @ 500mA typical)
• Package type (8-SOIC)
• Mounting type (Surface Mount)
• Protection features (Over Current, Over Temperature, Over Voltage, Reverse Polarity)
• Operating temperature range (-40°C ~ 125°C)

The MIC5239YM meets all these criteria and is classified as a direct substitute. Both parts share the same base product number (MIC5239) and are manufactured by Microchip Technology.

Parameter Comparison

Engineering Selection Recommendations

The MIC5239YM is the direct substitute for the discontinued MIC5239BM. Both parts are electrically and mechanically identical across all specified parameters. The MIC5239YM is currently in active product status with higher inventory availability (2952 pcs vs. 963 pcs). The MIC5239YM carries RoHS3 compliance, whereas the MIC5239BM is RoHS non-compliant. For new designs or procurement requiring regulatory compliance, the MIC5239YM is the appropriate selection. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the MIC5239YM directly replace the MIC5239BM in existing designs?

A: Yes. The MIC5239YM is electrically and mechanically equivalent to the MIC5239BM. Both parts share identical electrical specifications, output voltage range, current ratings, dropout voltage, and package dimensions (8-SOIC). No circuit modifications are required.

Q: What is the difference between the MIC5239BM and MIC5239YM?

A: The primary differences are product status and packaging. The MIC5239BM is discontinued and supplied in bulk packaging, while the MIC5239YM is active and supplied in tube packaging. The MIC5239YM also carries RoHS3 compliance versus the MIC5239BM's non-compliant status. All electrical and mechanical specifications are identical.

Q: Are there any compliance considerations when switching from MIC5239BM to MIC5239YM?

A: The MIC5239YM is RoHS3 compliant, making it suitable for applications requiring regulatory compliance. Both parts maintain REACH Unaffected status. If your application requires RoHS compliance, the MIC5239YM is the appropriate choice.

Q: What is the moisture sensitivity level difference between these parts?

A: The MIC5239BM has MSL 1 (Unlimited), while the MIC5239YM has MSL 2 (1 Year). This affects storage and handling requirements. The MIC5239YM requires controlled moisture storage conditions for up to one year from the date of manufacture.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the MIC5239BM and MIC5239YM operate across the identical temperature range of -40°C to 125°C, ensuring thermal compatibility in equivalent applications.