MIC39150-1.8BT Equivalent & Substitute Parts

Part Overview

The MIC39150-1.8BT is a linear voltage regulator IC from Microchip Technology designed for positive fixed 1.8V output applications with 1.5A current capacity in a TO-220-3 package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The regulator provides integrated protection features including over-current, over-temperature, and reverse polarity protection, with operational capability across -40°C to 125°C temperature range.

Substiute Parts

MIC39150-1.8BT

Microchip TechnologyIn Stock: 1138MIC39150-1.8BT Datasheet

Current PartRFQ

MIC39150-1.8WT

Microchip TechnologyIn Stock: 939MIC39150-1.8WT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MIC39150-1.8BT is determined by strict equivalence across the following critical parameters:

• Output voltage: 1.8V fixed
• Output current capacity: 1.5A minimum
• Maximum input voltage: 16V or greater
• Package type: TO-220-3 (through-hole mounting)
• Protection features: Over-current, over-temperature, and reverse polarity protection
• Operating temperature range: -40°C to 125°C minimum

The MIC39150-1.8WT qualifies as a direct substitute based on identical electrical specifications and package configuration. This part maintains all functional and electrical parameters while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MIC39150-1.8WT is the primary substitute for the obsolete MIC39150-1.8BT. Both parts are manufactured by Microchip Technology and provide identical electrical performance and mechanical compatibility. The MIC39150-1.8WT offers the advantage of active product status, ensuring continued availability and manufacturer support. Additionally, the MIC39150-1.8WT meets ROHS3 compliance requirements, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.

For applications requiring regulatory compliance with modern environmental standards, the MIC39150-1.8WT is the preferred selection. The tube packaging of the substitute part provides improved handling and storage characteristics compared to bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the MIC39150-1.8WT be used as a direct replacement for the MIC39150-1.8BT?

A: Yes. Both parts share identical electrical specifications, output voltage, current capacity, input voltage range, dropout voltage, package type, and protection features. The MIC39150-1.8WT is electrically and mechanically interchangeable with the MIC39150-1.8BT.

Q: What is the difference between the MIC39150-1.8BT and MIC39150-1.8WT?

A: The primary differences are product status, RoHS compliance, and packaging format. The MIC39150-1.8BT is obsolete and RoHS non-compliant, while the MIC39150-1.8WT is an active product with ROHS3 compliance. The MIC39150-1.8WT is supplied in tube packaging versus bulk packaging for the original part.

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

A: No. Both parts operate across the same temperature range (-40°C to 125°C) and maintain identical dropout voltage specifications (0.5V @ 1.5A). Thermal performance and electrical characteristics are equivalent.

Q: What packaging considerations apply to the substitute part?

A: The MIC39150-1.8WT is supplied in tube packaging, which provides organized component handling and storage. The TO-220-3 package remains unchanged, maintaining compatibility with existing PCB layouts and through-hole mounting requirements.

Q: Is the MIC39150-1.8WT suitable for new designs?

A: Yes. The MIC39150-1.8WT is an active product with current manufacturer support, making it appropriate for both legacy system maintenance and new design implementations.