MMBD4448DW-7 Equivalent & Substitute Parts

Part Overview

The MMBD4448DW-7 is a diode array containing 2 independent general-purpose rectifier diodes rated for 75 V DC reverse voltage and 250 mA average rectified current per diode. The device is packaged in a 6-TSSOP (SC-88, SOT-363) surface mount configuration and features fast recovery characteristics with a 4 ns reverse recovery time. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

MMBD4448DW-7

Diodes IncorporatedIn Stock: 749MMBD4448DW-7 Datasheet

Current PartRFQ

MMBD4448DW-7-F

Diodes IncorporatedIn Stock: 2110MMBD4448DW-7-F Datasheet

DirectRFQ

MMBD4448DW-TP

Micro Commercial CoIn Stock: 378031MMBD4448DW-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMBD4448DW-7 are qualified based on strict electrical and mechanical parameter matching. All substitute candidates must satisfy the following criteria:

Electrical Parameters (Required Match):

• Diode configuration: 2 Independent
• Voltage - DC Reverse (Vr) (Max): 75 V
• Current - Average Rectified (Io) (per Diode): 250 mA
• Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 150 mA
• Speed classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 4 ns
• Current - Reverse Leakage @ Vr: 2.5 µA @ 75 V
• Operating Temperature - Junction: -65°C to 150°C (maximum)

Mechanical Parameters (Required Match):

• Mounting Type: Surface Mount
• Package / Case: 6-TSSOP, SC-88, SOT-363
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitutes are grouped into two categories: direct manufacturer equivalents and parametric equivalents from alternative manufacturers. Both categories maintain identical electrical performance and physical form factor compatibility.

Parameter Comparison

Engineering Selection Recommendations

MMBD4448DW-7-F (Diodes Incorporated): This part is the direct manufacturer equivalent from Diodes Incorporated and maintains identical electrical specifications and package configuration. The primary distinction is product status: MMBD4448DW-7-F is active and available, whereas the original MMBD4448DW-7 is discontinued. This substitute is supplied in Tape & Reel (TR) packaging format and carries ROHS3 compliance certification, providing regulatory advantage over the original non-compliant part. Selection of this part eliminates supply chain discontinuity while maintaining full electrical and mechanical compatibility.

MMBD4448DW-TP (Micro Commercial Co): This part is a parametric equivalent from an alternative manufacturer and satisfies all electrical and mechanical requirements. The MMBD4448DW-TP is actively produced with significantly higher inventory availability (377,921 pieces in stock) compared to the Diodes Incorporated alternative. This part also carries ROHS3 compliance and is supplied in Tape & Reel (TR) packaging. The parametric equivalence is based on matching all critical electrical parameters: reverse voltage rating, rectified current capacity, forward voltage characteristics, recovery time specifications, and leakage current performance. Operating temperature range specification differs in format but maintains the same maximum junction temperature of 150°C.

Both substitutes are suitable for direct replacement in applications where the MMBD4448DW-7 was originally specified. Selection between them depends on supply chain preferences, inventory requirements, and manufacturer qualification procedures.

Frequently Asked Questions (FAQ)

Q: Can MMBD4448DW-7-F be used as a direct replacement for MMBD4448DW-7?

A: Yes. The MMBD4448DW-7-F is a direct manufacturer equivalent with identical electrical specifications and package configuration. The parts differ only in product status (active vs. discontinued) and packaging format (Tape & Reel vs. bulk). Full electrical and mechanical compatibility is maintained.

Q: What is the difference between MMBD4448DW-7-F and MMBD4448DW-TP?

A: Both parts meet identical electrical specifications and package requirements. The primary differences are manufacturer (Diodes Incorporated vs. Micro Commercial Co) and inventory availability. MMBD4448DW-TP has significantly higher stock levels. Both are ROHS3 compliant and supplied in Tape & Reel packaging.

Q: Are there any electrical performance differences between the three parts?

A: No. All three parts—MMBD4448DW-7, MMBD4448DW-7-F, and MMBD4448DW-TP—share identical electrical parameters: 75 V reverse voltage rating, 250 mA rectified current per diode, 1.25 V forward voltage at 150 mA, 4 ns reverse recovery time, and 2.5 µA reverse leakage current at 75 V.

Q: Does the packaging format (bulk vs. Tape & Reel) affect electrical performance?

A: No. Packaging format affects only supply chain logistics and handling procedures. Electrical and mechanical performance is independent of whether the part is supplied in bulk or Tape & Reel format.

Q: Is the MMBD4448DW-7 RoHS compliance status a concern for substitution?

A: The original MMBD4448DW-7 is RoHS non-compliant, while both substitutes (MMBD4448DW-7-F and MMBD4448DW-TP) are ROHS3 compliant. For applications subject to RoHS regulations, the compliant substitutes provide regulatory alignment. For legacy or non-regulated applications, compliance status does not affect electrical functionality.

Q: Can MMBD4448DW-TP be used in applications originally designed for MMBD4448DW-7?

A: Yes. The MMBD4448DW-TP is a parametric equivalent that satisfies all electrical and mechanical requirements. The part is pin-compatible, operates within identical voltage and current ranges, and is packaged in the same 6-TSSOP (SOT-363) form factor. Cross-manufacturer substitution is valid based on parameter equivalence.

Q: What is the significance of the 2 Independent diode configuration?

A: The 2 Independent configuration indicates that the package contains two separate diodes with independent cathode and anode connections. This configuration allows each diode to be used independently in circuit applications. All three parts maintain this configuration, ensuring functional compatibility.

Q: Are there any temperature range limitations when substituting these parts?

A: All three parts share the same maximum junction temperature of 150°C. The original MMBD4448DW-7 specifies -65°C to 150°C; MMBD4448DW-TP specifies 150°C maximum. Both substitutes operate within the same thermal envelope as the original part.