MMDT5401-7 Equivalent & Substitute Parts

Part Overview

The MMDT5401-7 is a dual PNP bipolar junction transistor (BJT) array manufactured by Diodes Incorporated, housed in a 6-pin SOT-363 surface mount package. This component is designed for general-purpose switching and amplification applications requiring dual PNP transistor functionality in a compact form factor.

The MMDT5401-7 is currently discontinued at DiGi Electronics. Locating equivalent substitute parts is necessary to maintain design continuity and ensure project completion when original inventory becomes unavailable. Substitute parts must maintain electrical and mechanical compatibility across all critical parameters including collector current rating, breakdown voltage, saturation characteristics, and package specifications.

Substiute Parts

MMDT5401-7

Diodes IncorporatedIn Stock: 812MMDT5401-7 Datasheet

Current PartRFQ

MMDT5401-7-F

Diodes IncorporatedIn Stock: 116454MMDT5401-7-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMDT5401-7 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Transistor configuration: Dual PNP (2 PNP)
• Maximum collector current: 200mA
• Collector-emitter breakdown voltage: 150V
• Saturation voltage: 500mV @ 5mA, 50mA
• Collector cutoff current: 50nA (ICBO)
• DC current gain (hFE): Minimum 60 @ 10mA, 5V
• Maximum power dissipation: 200mW
• Transition frequency: 300MHz
• Operating temperature range: -55°C to 150°C

Mechanical Parameters (Must Match):

• Package type: SOT-363 (6-TSSOP, SC-88)
• Mounting type: Surface Mount

Substitute parts must satisfy all electrical specifications and maintain identical package and mounting characteristics to ensure direct replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

The MMDT5401-7-F is a direct electrical and mechanical equivalent to the MMDT5401-7. All critical electrical parameters—collector current, breakdown voltage, saturation characteristics, current gain, power rating, and frequency response—are identical. Both components utilize the same SOT-363 package and surface mount configuration, enabling direct PCB substitution without layout modifications.

Product Status Consideration: The MMDT5401-7 is discontinued at DiGi Electronics, while the MMDT5401-7-F maintains active product status with significantly higher inventory availability (116,400 units versus 780 units). This availability differential makes the MMDT5401-7-F the preferred selection for new designs and ongoing production requirements.

Compliance Consideration: The MMDT5401-7-F carries ROHS3 compliance certification, whereas the original MMDT5401-7 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the MMDT5401-7-F satisfies compliance obligations while maintaining full electrical compatibility.

Packaging Consideration: The MMDT5401-7-F is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The original MMDT5401-7 is supplied in bulk packaging. Both packaging formats are compatible with standard surface mount assembly equipment; packaging selection depends on production volume and assembly methodology.

Frequently Asked Questions (FAQ)

Q: Can the MMDT5401-7-F replace the MMDT5401-7 in existing designs?

A: Yes. The MMDT5401-7-F is electrically and mechanically identical to the MMDT5401-7 across all specified parameters. Direct substitution is possible without circuit redesign or PCB modification. Both components share the same base product number (MMDT5401) and are manufactured by Diodes Incorporated.

Q: What is the difference between the MMDT5401-7 and MMDT5401-7-F?

A: The primary differences are product status, packaging format, and RoHS compliance. The MMDT5401-7 is discontinued and supplied in bulk; the MMDT5401-7-F is active and supplied in Tape & Reel format. The MMDT5401-7-F carries ROHS3 compliance certification. All electrical specifications are identical.

Q: Are there any performance differences between these parts?

A: No. Both parts meet identical electrical specifications for collector current (200mA), breakdown voltage (150V), saturation voltage (500mV @ 5mA, 50mA), current gain (60 @ 10mA, 5V), power dissipation (200mW), transition frequency (300MHz), and operating temperature range (-55°C to 150°C).

Q: Is the SOT-363 package compatible with existing PCB layouts?

A: Yes. Both the MMDT5401-7 and MMDT5401-7-F use the SOT-363 package (also designated 6-TSSOP or SC-88). This package is standardized and compatible with existing surface mount assembly processes and PCB footprints designed for SOT-363 components.

Q: What is the significance of the "-F" suffix in the MMDT5401-7-F part number?

A: The "-F" suffix indicates the packaging format (Tape & Reel) and RoHS compliance status. This designation distinguishes the part from bulk-packaged variants while maintaining the same electrical specifications and base product number.

Q: Can I use the MMDT5401-7-F in applications requiring RoHS compliance?

A: Yes. The MMDT5401-7-F carries ROHS3 compliance certification and is suitable for applications subject to RoHS regulatory requirements. The original MMDT5401-7 is RoHS non-compliant.

Q: What inventory considerations should I account for when selecting between these parts?

A: The MMDT5401-7 has limited inventory (780 units) and is discontinued. The MMDT5401-7-F has substantially higher availability (116,400 units) and active product status. For production continuity and supply chain reliability, the MMDT5401-7-F is the recommended selection.