MMBD4448HCDW-7 Equivalent & Substitute Parts

Part Overview

The MMBD4448HCDW-7 is a general-purpose diode array manufactured by Diodes Incorporated, configured as a 2 Pair Common Cathode device rated for 80 V DC reverse voltage and 250 mA average rectified current per diode. The component is housed in a 6-TSSOP (SC-88, SOT-363) surface mount package and features fast recovery characteristics with a 4 ns reverse recovery time.

This part is currently discontinued at DiGi Electronics. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array configuration.

Substiute Parts

MMBD4448HCDW-7

Diodes IncorporatedIn Stock: 2914MMBD4448HCDW-7 Datasheet

Current PartRFQ

MMBD4448HCDW-7-F

Diodes IncorporatedIn Stock: 3277MMBD4448HCDW-7-F Datasheet

Parametric EquivalentRFQ

UMN11NTN

Rohm SemiconductorIn Stock: 313775UMN11NTN Datasheet

MFR RecommendedRFQ

MMBD4448HCQW-TP

Micro Commercial CoIn Stock: 4145MMBD4448HCQW-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMBD4448HCDW-7 are classified based on electrical and mechanical parameter compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

• Diode Configuration: 2 Pair Common Cathode (must match)
• Voltage - DC Reverse (Vr) (Max): 80 V (must match)
• Package / Case: 6-TSSOP, SC-88, SOT-363 (must match)
• Mounting Type: Surface Mount (must match)
• Current - Average Rectified (Io) (per Diode): 250 mA or higher (equal or greater capacity acceptable)

Secondary Parameters:

• Voltage - Forward (Vf) (Max) @ If: Within 1.25 V @ 150 mA specification
• Reverse Recovery Time (trr): 4 ns or faster
• Current - Reverse Leakage @ Vr: 100 nA @ 70 V or lower
• Operating Temperature - Junction: -65°C ~ 150°C or compatible range

Substitutes are grouped into two categories: Parametric Equivalents (identical electrical specifications and packaging) and Manufacturer Recommended Alternatives (functionally compatible with noted parameter variations).

Parameter Comparison

Engineering Selection Recommendations

MMBD4448HCDW-7-F (Diodes Incorporated)

This part is a direct parametric equivalent to the MMBD4448HCDW-7, offering identical electrical specifications and package configuration. The primary distinction is packaging format (Tape & Reel versus bulk) and active product status. MMBD4448HCDW-7-F is ROHS3 compliant, addressing regulatory requirements that the original part does not meet. This substitute is recommended for applications requiring direct replacement with no design modifications.

MMBD4448HCQW-TP (Micro Commercial Co)

This part maintains full electrical and mechanical compatibility with the MMBD4448HCDW-7, including 250 mA current rating, 80 V reverse voltage, and identical package configuration. The component is actively produced and ROHS3 compliant. This substitute is suitable for applications where cross-manufacturer sourcing is acceptable.

UMN11NTN (Rohm Semiconductor)

This part shares the same package configuration (6-TSSOP, SC-88, SOT-363), diode configuration (2 Pair Common Cathode), and 80 V reverse voltage rating. However, the current rating is reduced to 100 mA per diode, compared to 250 mA for the original part. UMN11NTN is classified as a manufacturer-recommended alternative and is suitable only for applications where the reduced current capacity meets design requirements. This part is actively produced and ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can MMBD4448HCDW-7-F be used as a direct replacement for MMBD4448HCDW-7?

A: Yes. MMBD4448HCDW-7-F is a parametric equivalent with identical electrical specifications, diode configuration, and package type. The difference is packaging format (Tape & Reel) and active product status. No design modifications are required.

Q: What is the key difference between MMBD4448HCQW-TP and the original MMBD4448HCDW-7?

A: MMBD4448HCQW-TP is manufactured by Micro Commercial Co rather than Diodes Incorporated. All electrical parameters and package specifications are identical. This is a cross-manufacturer equivalent suitable for applications where supplier diversification is acceptable.

Q: Can UMN11NTN replace MMBD4448HCDW-7 in all applications?

A: UMN11NTN is not a full replacement. While it shares the same package, diode configuration, and 80 V reverse voltage rating, the current capacity is reduced to 100 mA per diode compared to 250 mA. UMN11NTN is suitable only for applications where the lower current rating meets design requirements.

Q: Are all substitute parts RoHS compliant?

A: MMBD4448HCDW-7-F, MMBD4448HCQW-TP, and UMN11NTN are all ROHS3 compliant. The original MMBD4448HCDW-7 is RoHS non-compliant. Substitution with any of these alternatives addresses RoHS compliance requirements.

Q: Do all substitute parts use the same package footprint?

A: Yes. All substitute parts use the 6-TSSOP (SC-88, SOT-363) surface mount package. PCB layout and assembly processes require no modification.

Q: What is the operating temperature range for each substitute?

A: MMBD4448HCDW-7-F maintains the original range of -65°C ~ 150°C. MMBD4448HCQW-TP and UMN11NTN specify a maximum junction temperature of 150°C without a stated minimum. For applications requiring the full -65°C ~ 150°C range, MMBD4448HCDW-7-F is the appropriate choice.

Q: Are there inventory considerations when selecting a substitute?

A: Inventory levels vary by part and supplier. MMBD4448HCDW-7-F has 3,168 units in stock, MMBD4448HCQW-TP has 4,043 units, and UMN11NTN has 313,710 units available. Availability should be verified with the supplier for production requirements.