MBRB4030T4 Equivalent & Substitute Parts

Part Overview

The MBRB4030T4 is a Schottky rectifier diode manufactured by onsemi, rated for 30 V DC reverse voltage and 40 A average rectified current in a surface mount D2PAK package. This component is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this rectifier specification.

Substiute Parts

MBRB4030T4

onsemiIn Stock: 1081MBRB4030T4 Datasheet

Current PartRFQ

NRVBB4030T4G

onsemiIn Stock: 1804NRVBB4030T4G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBRB4030T4 are identified based on strict electrical and mechanical parameter matching within the Schottky rectifier diode category. The following parameters establish substitution eligibility:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 40 A
• Voltage - Forward (Vf) (Max) @ If: 550 mV @ 40 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 350 µA @ 30 V
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -65°C ~ 175°C
• Technology: Schottky

Parts meeting all specified parameters are classified as parametric equivalents and direct substitutes for circuit-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

The NRVBB4030T4G is a parametric equivalent to the MBRB4030T4, matching all critical electrical and mechanical specifications. Both components are classified as obsolete products within the onsemi SWITCHMODE™ Schottky rectifier series.

A key distinction exists in regulatory compliance status: the NRVBB4030T4G is ROHS3 compliant, whereas the MBRB4030T4 is RoHS non-compliant. For applications subject to RoHS directives or environmental compliance requirements, the NRVBB4030T4G provides equivalent electrical performance with improved regulatory standing.

Both parts share identical electrical characteristics, package configuration, and thermal operating range, supporting direct substitution at the circuit level.

Frequently Asked Questions (FAQ)

Q: Can the NRVBB4030T4G replace the MBRB4030T4 in existing designs?

A: Yes. The NRVBB4030T4G is a parametric equivalent with identical electrical specifications, forward voltage characteristics, reverse leakage current, switching speed, and D2PAK package configuration. Direct substitution is supported at the circuit level.

Q: What is the primary difference between these two parts?

A: The NRVBB4030T4G is ROHS3 compliant, while the MBRB4030T4 is RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are both parts available in the same package?

A: Yes. Both the MBRB4030T4 and NRVBB4030T4G use the TO-263-3 D2PAK (2 Leads + Tab) surface mount package with identical pinout and thermal characteristics.

Q: Do these parts have the same operating temperature range?

A: Yes. Both components operate across a junction temperature range of -65°C to 175°C.

Q: What is the moisture sensitivity level for these components?

A: Both parts are rated at MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are there any differences in reverse leakage current specifications?

A: No. Both parts specify 350 µA maximum reverse leakage current at 30 V.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Identical D2PAK package geometry, pinout, and thermal performance enable direct PCB-level interchangeability.