MIC29312BT Equivalent & Substitute Parts

Part Overview

The MIC29312BT is a linear voltage regulator IC from Microchip Technology designed for positive adjustable output applications. This device delivers 3A output current with adjustable voltage regulation from 1.24V to 15V, housed in a TO-220-5 package for through-hole mounting. The MIC29312BT is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

MIC29312BT

Microchip TechnologyIn Stock: 2215MIC29312BT Datasheet

Current PartRFQ

MIC29312WT

Microchip TechnologyIn Stock: 9998MIC29312WT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC29312BT is determined by strict equivalence across the following critical parameters:

• Identical output configuration (Positive)
• Identical output type (Adjustable)
• Identical voltage output range (1.24V to 15V)
• Identical maximum output current (3A)
• Identical maximum input voltage (16V)
• Identical package type (TO-220-5)
• Identical mounting method (Through Hole)
• Identical protection features (Over Current, Over Temperature, Reverse Polarity)
• Identical control features (Enable)

The MIC29312WT meets all these criteria and is classified as a direct substitute. The primary distinction between these parts is product status and packaging format, not electrical or mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The MIC29312WT is the direct functional equivalent of the MIC29312BT. Both devices share identical electrical specifications and mechanical packaging. Selection between these parts should be based on the following factors:

For new designs or production requiring regulatory compliance, the MIC29312WT is the appropriate choice due to its Active product status and ROHS3 compliance certification. This part ensures long-term availability and meets current environmental standards.

For legacy system maintenance or applications where RoHS compliance is not required, the MIC29312BT remains functionally equivalent, though its Obsolete status indicates limited future availability.

Both parts are manufactured by Microchip Technology and utilize the same TO-220-5 package, ensuring direct pin-compatible substitution without circuit board modifications.

Frequently Asked Questions (FAQ)

Q: Can the MIC29312WT directly replace the MIC29312BT in existing designs?

A: Yes. The MIC29312WT is electrically and mechanically identical to the MIC29312BT. Both devices feature the same TO-220-5 package, identical pin configuration, and equivalent electrical performance. Direct substitution requires no circuit modifications.

Q: What is the difference between MIC29312BT and MIC29312WT?

A: The primary differences are product status and regulatory compliance. The MIC29312BT is classified as Obsolete and RoHS non-compliant. The MIC29312WT is Active and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Why is the MIC29312BT listed as Obsolete?

A: Obsolete status indicates that Microchip Technology has discontinued active production and support for this specific part number variant. The MIC29312WT represents the current production equivalent.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the TO-220-5 package with identical pinout and through-hole mounting configuration. They are fully interchangeable at the board level.

Q: Which part should be specified for new designs?

A: The MIC29312WT should be specified for new designs. It is the active production part with current regulatory compliance certifications and ensures long-term component availability.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by matching output configuration (Positive), output type (Adjustable), voltage range (1.24V to 15V output), maximum output current (3A), maximum input voltage (16V), and protection features (Over Current, Over Temperature, Reverse Polarity).