MIC39101-3.3BM-TR Equivalent & Substitute Parts

Part Overview

The MIC39101-3.3BM-TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed 3.3V output applications with 1A current capacity in an 8-SOIC surface mount package. This part is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing production and maintenance applications. The MIC39101 series provides regulated power management with integrated protection features including over-current, over-temperature, and reverse polarity protection.

Substiute Parts

MIC39101-3.3BM-TR

Microchip TechnologyIn Stock: 780MIC39101-3.3BM-TR Datasheet

Current PartRFQ

MIC39101-3.3YM-TR

Microchip TechnologyIn Stock: 3914MIC39101-3.3YM-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC39101-3.3BM-TR is based on strict equivalence of the following electrical and mechanical parameters:

• Output voltage fixed at 3.3V
• Output current rating of 1A
• Maximum input voltage of 16V
• Dropout voltage specification of 0.63V @ 1A
• 8-SOIC package with 0.154" (3.90mm) width
• Operating temperature range of -40°C ~ 125°C
• Identical protection features (Over Current, Over Temperature, Reverse Polarity)
• Enable control feature

The MIC39101-3.3YM-TR qualifies as a direct substitute based on matching all electrical specifications and package requirements. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and product status (Active versus Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The MIC39101-3.3YM-TR is the direct substitute for the discontinued MIC39101-3.3BM-TR. Both parts share identical electrical specifications and package geometry, ensuring pin-for-pin compatibility and functional equivalence in circuit applications.

The MIC39101-3.3YM-TR offers the advantage of active product status with current availability. Additionally, this substitute achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. The packaging format difference (Cut Tape & Digi-Reel® versus Tape & Reel) does not affect electrical performance or circuit integration.

The MSL rating difference (MSL 2 versus MSL 1) reflects standard moisture sensitivity classifications and does not impact functional substitution for applications within specified operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the MIC39101-3.3YM-TR be used as a direct replacement for the MIC39101-3.3BM-TR?

A: Yes. Both parts are electrically and mechanically equivalent with identical output voltage (3.3V), output current (1A), input voltage rating (16V), dropout voltage (0.63V @ 1A), and 8-SOIC package specifications. Pin configuration and functional behavior are identical.

Q: What is the difference between the Tape & Reel (TR) and Cut Tape & Digi-Reel® packaging formats?

A: Tape & Reel (TR) is a continuous reel format for automated assembly lines. Cut Tape & Digi-Reel® provides flexibility in quantity selection and is suitable for both manual and automated assembly. The electrical and mechanical specifications of the component remain unchanged regardless of packaging format.

Q: Does the RoHS compliance difference affect substitution?

A: The MIC39101-3.3YM-TR is ROHS3 compliant while the original part is RoHS non-compliant. For applications requiring RoHS compliance, the substitute part meets this requirement. For applications without RoHS requirements, both parts function identically.

Q: What does the MSL rating difference mean?

A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions. MSL 2 (1 Year) requires storage in controlled humidity conditions with a one-year shelf life from the date of manufacture. For standard operating conditions and proper storage practices, this difference does not affect functional substitution.

Q: Are there any circuit design considerations when substituting this part?

A: No circuit design changes are required. The MIC39101-3.3YM-TR maintains identical electrical characteristics, protection features (Over Current, Over Temperature, Reverse Polarity), and control features (Enable) as the original part. PCB layout and schematic integration remain unchanged.