MMBT3906M-TP PNP Bipolar Transistor Equivalent & Substitute Parts

Part Overview

The MMBT3906M-TP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 200 mA, collector-emitter breakdown voltage of 40 V, and operates across a temperature range of -55°C to 150°C. The component is packaged in SOT-883 surface mount configuration with 100 mW maximum power dissipation.

The MMBT3906M-TP currently holds obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring PNP transistor functionality within the specified electrical and mechanical parameters.

Substiute Parts

MMBT3906M-TP

Micro Commercial CoIn Stock: 816MMBT3906M-TP Datasheet

Current PartRFQ

MMBT3906L3-TP

Micro Commercial CoIn Stock: 913MMBT3906L3-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMBT3906M-TP are identified based on strict electrical and mechanical compatibility criteria. The following parameters define acceptable substitution:

Primary Substitution Criteria:

• Transistor Type: PNP (required match)
• Current - Collector (Ic) Max: 200 mA (required match)
• Voltage - Collector Emitter Breakdown (Max): 40 V (required match)
• Mounting Type: Surface Mount (required match)
• Base Product Number: MMBT3906 (same device family)

Secondary Compatibility Factors:

• Package / Case: SOT-883 or equivalent surface mount package
• RoHS Compliance: RoHS3 or RoHS Compliant status
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The MMBT3906L3-TP qualifies as a direct substitute based on matching transistor type, collector current rating, collector-emitter breakdown voltage, surface mount configuration, and base product number alignment. Both devices share the MMBT3906 base product designation and maintain electrical parameter equivalence within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

MMBT3906L3-TP Selection Basis:

The MMBT3906L3-TP is the manufacturer-recommended substitute for the obsolete MMBT3906M-TP. This recommendation is supported by the following engineering factors:

1. Electrical Equivalence: Both devices maintain identical collector current (200 mA), collector-emitter breakdown voltage (40 V), and transistor type (PNP) specifications, ensuring functional compatibility in existing circuit designs.

2. Product Status Advantage: The MMBT3906L3-TP holds active product status, providing assured long-term availability and supply chain continuity compared to the obsolete MMBT3906M-TP.

3. Compliance Alignment: Both parts maintain RoHS compliance (ROHS3 for the substitute represents current regulatory compliance standards) and identical MSL 1 moisture sensitivity ratings, supporting manufacturing process compatibility.

4. Package Compatibility: While the MMBT3906L3-TP uses DFN1006-3 packaging versus the SOT-883 of the main part, both are surface mount configurations suitable for automated assembly processes. PCB layout modifications may be required to accommodate the different package footprint.

5. Manufacturer Continuity: Both devices originate from Micro Commercial Co and share the MMBT3906 base product number, confirming device family alignment and design intent compatibility.

Frequently Asked Questions (FAQ)

Q: Can MMBT3906L3-TP directly replace MMBT3906M-TP without circuit modifications?

A: The MMBT3906L3-TP provides electrical equivalence for the MMBT3906M-TP based on matching collector current, collector-emitter breakdown voltage, and transistor type. However, the package change from SOT-883 to DFN1006-3 requires PCB layout modifications. Verify footprint compatibility with your PCB design before implementation.

Q: What is the significance of the product status change from Obsolete to Active?

A: The MMBT3906M-TP is classified as obsolete, indicating discontinued manufacturing and limited availability. The MMBT3906L3-TP maintains active status, confirming current production and reliable long-term supply. This transition supports design continuity and reduces supply chain risk.

Q: Are there electrical parameter differences between these devices?

A: The provided specifications confirm matching electrical parameters for collector current (200 mA), collector-emitter breakdown voltage (40 V), and transistor type (PNP). Both devices operate within the same electrical performance envelope for general-purpose switching and amplification applications.

Q: How do the packaging differences affect component selection?

A: The MMBT3906M-TP uses SOT-883 packaging while the MMBT3906L3-TP uses DFN1006-3 packaging. Both are surface mount configurations. The package change requires PCB footprint redesign and may affect thermal characteristics. Consult package datasheets for specific dimensional and thermal specifications.

Q: What compliance certifications apply to both devices?

A: Both the MMBT3906M-TP and MMBT3906L3-TP maintain RoHS compliance and MSL 1 (Unlimited) moisture sensitivity ratings. The substitute part carries ROHS3 certification, representing current regulatory standards. Both devices are classified under ECCN EAR99 for export control purposes.

Q: Is the MMBT3906L3-TP available in the same packaging format as the main part?

A: No. The MMBT3906M-TP is supplied in SOT-883 packaging, while the MMBT3906L3-TP is supplied in DFN1006-3 packaging. Both are surface mount configurations. The MMBT3906L3-TP is available in Tape & Reel (TR) format for automated assembly processes.