MIC39151-1.65BT Equivalent & Substitute Parts

Part Overview

The MIC39151-1.65BT is a linear voltage regulator IC from Microchip Technology designed for positive fixed output applications. This device delivers 1.5A output current at a fixed 1.65V output voltage in a TO-220-5 package. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and production continuity. Equivalent parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

MIC39151-1.65BT

Microchip TechnologyIn Stock: 1159MIC39151-1.65BT Datasheet

Current PartRFQ

MIC39151-1.65WT

Microchip TechnologyIn Stock: 902MIC39151-1.65WT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC39151-1.65BT is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 1.65V fixed
• Output current capability: 1.5A minimum
• Maximum input voltage: 16V or greater
• Dropout voltage: 0.5V @ 1.5A or lower
• Package type: TO-220-5 (mechanical and thermal compatibility)
• Output configuration: Positive fixed output
• Protection features: Over current, over temperature, and reverse polarity protection
• Operating temperature range: -40°C to 125°C minimum

The MIC39151-1.65WT qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status and compliance certification, not functional capability.

Parameter Comparison

Engineering Selection Recommendations

The MIC39151-1.65WT is the qualified substitute for the obsolete MIC39151-1.65BT. Both parts are manufactured by Microchip Technology and share identical electrical specifications and TO-220-5 package configuration, enabling direct pin-for-pin replacement.

The MIC39151-1.65WT offers the additional advantage of active product status and ROHS3 compliance, making it the preferred choice for new designs and production continuity. The obsolete status of the MIC39151-1.65BT necessitates transition to the MIC39151-1.65WT for long-term supply chain reliability.

No circuit modifications are required when transitioning from MIC39151-1.65BT to MIC39151-1.65WT. PCB layout and thermal management considerations remain unchanged due to identical package specifications.

Frequently Asked Questions (FAQ)

Q: Can MIC39151-1.65WT be used as a direct replacement for MIC39151-1.65BT?

A: Yes. Both parts deliver identical electrical performance: 1.65V fixed output at 1.5A maximum current, 0.5V maximum dropout voltage, and -40°C to 125°C operating range. The TO-220-5 package ensures mechanical and thermal compatibility without PCB redesign.

Q: What is the difference between MIC39151-1.65BT and MIC39151-1.65WT?

A: The primary differences are product status and compliance certification. MIC39151-1.65BT is obsolete and RoHS non-compliant. MIC39151-1.65WT is active and ROHS3 compliant. Electrical specifications and package type are identical.

Q: Why is the MIC39151-1.65BT obsolete?

A: Microchip Technology has discontinued this part number. The MIC39151-1.65WT serves as the active replacement with equivalent functionality and improved compliance status.

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

A: No. Both parts use the TO-220-5 through-hole package with identical pin configuration, thermal characteristics, and mounting requirements. Existing thermal management solutions require no modification.

Q: What compliance certifications apply to each part?

A: MIC39151-1.65BT is RoHS non-compliant. MIC39151-1.65WT is ROHS3 compliant. Both parts are REACH unaffected and classified under ECCN EAR99.