MBRB30100CT Equivalent & Substitute Parts

Part Overview

The MBRB30100CT is a Schottky diode array manufactured by SMC Diode Solutions, configured as a 1 Pair Common Cathode device rated for 100 V DC reverse voltage. The component is housed in a Surface Mount TO-263-3 D2PAK package with 2 leads plus tab configuration. This part is currently in Active product status with 24,415 pieces available in inventory.

Identification of equivalent and substitute parts becomes necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design requirements necessitate alternative sourcing options. The MBRB30100CT maintains compatibility with qualified substitute devices that meet or exceed the specified electrical and mechanical parameters within the same package family.

Substiute Parts

MBRB30100CT

SMC Diode SolutionsIn Stock: 24448MBRB30100CT Datasheet

Current PartRFQ

NTSB30100CTT4G

onsemiIn Stock: 9912NTSB30100CTT4G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRB30100CT is determined by strict adherence to the following critical parameters:

Electrical Compatibility Requirements:

• Diode Configuration: 1 Pair Common Cathode (pin-for-pin compatibility)
• Technology: Schottky (fast recovery characteristics)
• Voltage - DC Reverse (Vr) (Max): 100 V (minimum rating)
• Voltage - Forward (Vf) (Max) @ If: 850 mV @ 15 A (maximum forward voltage drop)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Compatibility Requirements:

• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB (identical footprint and lead configuration)

Regulatory Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The NTSB30100CTT4G manufactured by onsemi qualifies as a parametric equivalent substitute. This device maintains identical electrical specifications for diode configuration, technology, reverse voltage rating, forward voltage characteristics, recovery speed, and package form factor. The substitute part meets all mechanical and regulatory requirements for direct replacement in the same circuit application.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: MBRB30100CT (SMC Diode Solutions)

The MBRB30100CT is the recommended primary component for new designs and ongoing production. This part maintains Active product status with substantial inventory availability (24,415 pieces in stock). The device is ROHS3 compliant and REACH affected, meeting current regulatory requirements. The operating temperature range of -55°C to 150°C provides extended low-temperature performance suitable for demanding environmental applications.

Substitute Selection: NTSB30100CTT4G (onsemi)

The NTSB30100CTT4G qualifies as a direct parametric equivalent for applications where the MBRB30100CT becomes unavailable. This substitute maintains identical electrical performance across all critical parameters: diode configuration, Schottky technology, 100 V reverse voltage rating, 850 mV forward voltage at 15 A, and fast recovery characteristics. The D2PAK package footprint is identical, enabling direct PCB-level substitution without layout modifications.

Operational Considerations:

The NTSB30100CTT4G exhibits superior reverse leakage characteristics (500 µA @ 100 V versus 1 mA @ 100 V), resulting in lower standby current consumption. However, this substitute operates within a narrower temperature range (-40°C to 150°C), which may restrict use in applications requiring extended low-temperature performance below -40°C. The NTSB30100CTT4G carries Last Time Buy status, indicating limited future availability and unsuitability for long-term production commitments.

Compliance Status:

Both devices maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. The MBRB30100CT is REACH affected, while the NTSB30100CTT4G is REACH unaffected. Selection between these devices should account for supply chain compliance requirements specific to the end application and geographic market.

Frequently Asked Questions (FAQ)

Q: Can the NTSB30100CTT4G replace the MBRB30100CT in existing designs?

A: Yes, the NTSB30100CTT4G provides direct parametric equivalence for the MBRB30100CT. Both devices share identical diode configuration (1 Pair Common Cathode), Schottky technology, 100 V reverse voltage rating, 850 mV forward voltage at 15 A, fast recovery speed, and TO-263-3 D2PAK package footprint. No circuit modifications or PCB layout changes are required for substitution.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Reverse leakage current—the NTSB30100CTT4G exhibits 500 µA @ 100 V compared to 1 mA @ 100 V for the MBRB30100CT, resulting in lower standby power consumption; (2) Operating temperature range—the MBRB30100CT operates from -55°C to 150°C while the NTSB30100CTT4G operates from -40°C to 150°C; (3) Product status—the MBRB30100CT is Active with 24,415 pieces in stock, while the NTSB30100CTT4G is Last Time Buy with 9,898 pieces available; (4) Regulatory status—the MBRB30100CT is REACH affected while the NTSB30100CTT4G is REACH unaffected.

Q: Which part should be selected for new product designs?

A: The MBRB30100CT is the recommended selection for new designs. This part maintains Active product status with substantial inventory availability, ensuring long-term supply continuity. The extended operating temperature range (-55°C to 150°C) accommodates a broader range of environmental conditions. The NTSB30100CTT4G should be reserved for applications where the MBRB30100CT becomes unavailable or where the narrower temperature range (-40°C to 150°C) and superior reverse leakage characteristics provide specific design advantages.

Q: Are both parts pin-for-pin compatible?

A: Yes, both the MBRB30100CT and NTSB30100CTT4G are pin-for-pin compatible. Both devices utilize the TO-263-3 D2PAK package with 2 leads plus tab configuration. The identical pin assignment and package footprint enable direct PCB-level substitution without requiring layout modifications or design changes.

Q: What is the significance of the Last Time Buy status for the NTSB30100CTT4G?

A: Last Time Buy status indicates that onsemi has announced end-of-life for the NTSB30100CTT4G. This designation means that the manufacturer will not accept new orders beyond a specified cutoff date, and existing inventory will be depleted without replenishment. The NTSB30100CTT4G is suitable only for applications requiring immediate component availability or as a temporary substitute when the primary part is unavailable. Long-term production programs should not depend on this substitute.

Q: Do both parts meet current regulatory compliance requirements?

A: Yes, both the MBRB30100CT and NTSB30100CTT4G are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. The MBRB30100CT is REACH affected, while the NTSB30100CTT4G is REACH unaffected. Selection between these devices should account for supply chain compliance requirements specific to the end application and geographic market destination.

Q: What is the impact of the reverse leakage current difference on circuit performance?

A: The NTSB30100CTT4G exhibits lower reverse leakage current (500 µA @ 100 V) compared to the MBRB30100CT (1 mA @ 100 V). This difference results in reduced standby power consumption and lower heat generation during reverse bias operation. For applications with stringent power budget requirements or extended idle periods, the NTSB30100CTT4G may provide performance advantages. For most standard rectification applications, this difference is negligible.

Q: Can the MBRB30100CT be used in applications requiring operation below -40°C?

A: Yes, the MBRB30100CT is rated for operation down to -55°C junction temperature, making it suitable for cryogenic and extreme cold-weather applications. The NTSB30100CTT4G is limited to -40°C minimum junction temperature and is not appropriate for applications requiring extended low-temperature performance below -40°C.