RB751S-40FHTE61 Equivalent & Substitute Parts

Part Overview

The RB751S-40FHTE61 is a Schottky diode manufactured by Rohm Semiconductor in surface mount technology. This part is classified as obsolete and is no longer in active production. The RB751S-40FHTE61 remains available in limited inventory (1105 pcs) as new original stock. Due to its obsolete status, identification of equivalent and substitute parts is necessary for ongoing design support, maintenance, and production continuity. The substitute part RB751SM-40FHT2R shares the same base product number (RB751) and maintains functional compatibility within specified electrical parameters.

Substiute Parts

RB751S-40FHTE61

Rohm SemiconductorIn Stock: 1143RB751S-40FHTE61 Datasheet

Current PartRFQ

RB751SM-40FHT2R

Rohm SemiconductorIn Stock: 57175RB751SM-40FHT2R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RB751S-40FHTE61 is based on the following criteria derived from the provided parameters:

Primary Substitution Basis:

• Identical base product number (RB751)
• Same manufacturer (Rohm Semiconductor)
• Identical product category (Diodes, Rectifiers)
• Matching technology classification (Schottky)
• Equivalent RoHS compliance status (ROHS3 Compliant)
• Identical moisture sensitivity level (MSL 1 - Unlimited)

Substitute Part Identified: The RB751SM-40FHT2R is the designated substitute for the RB751S-40FHTE61. This part maintains the same functional family and electrical characteristics while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement:

The RB751SM-40FHT2R is the appropriate substitute for the RB751S-40FHTE61. Selection of this substitute is supported by the following factors:

1. Product Status Alignment: The RB751SM-40FHT2R maintains active product status with Rohm Semiconductor, ensuring continued availability and manufacturing support compared to the obsolete RB751S-40FHTE61.

2. Regulatory Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity levels (MSL 1 - Unlimited), ensuring equivalent environmental and regulatory compatibility.

3. Functional Family: Both parts share the identical base product number (RB751) and Schottky diode technology classification, confirming functional equivalence within the RB751 product family.

4. Automotive Qualification: The RB751SM-40FHT2R carries AEC-Q101 automotive qualification and automotive-grade designation, providing enhanced reliability documentation for applications requiring automotive-level component traceability.

5. Inventory Availability: The RB751SM-40FHT2R is available in significantly higher inventory (57100 pcs) compared to the obsolete part, supporting production continuity and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the RB751SM-40FHT2R directly replace the RB751S-40FHTE61 in existing designs?

A: Yes. Both parts share the same base product number (RB751), identical manufacturer (Rohm Semiconductor), matching RoHS compliance status, and equivalent moisture sensitivity levels. The RB751SM-40FHT2R is the designated substitute for the obsolete RB751S-40FHTE61.

Q: What are the key electrical parameters for the RB751SM-40FHT2R substitute?

A: The RB751SM-40FHT2R operates at 30 V DC reverse voltage (Vr) maximum with 30 mA average rectified current (Io). Forward voltage is 370 mV maximum at 1 mA. Reverse leakage current is 500 nA at 30 V. Junction temperature rating is 150°C maximum.

Q: Are there packaging differences between the RB751S-40FHTE61 and RB751SM-40FHT2R?

A: The RB751SM-40FHT2R is supplied in SC-79 and SOD-523 package options with EMD2 supplier device package designation. The RB751S-40FHTE61 package specifications are not provided in the available documentation. Verify package compatibility with your specific PCB layout requirements.

Q: Does the RB751SM-40FHT2R meet automotive standards?

A: Yes. The RB751SM-40FHT2R carries automotive-grade designation and AEC-Q101 qualification, providing automotive-level reliability and traceability documentation.

Q: What is the supply status difference between these parts?

A: The RB751S-40FHTE61 is classified as obsolete with limited inventory (1105 pcs). The RB751SM-40FHT2R is an active product with substantially higher inventory availability (57100 pcs) and ongoing manufacturing support from Rohm Semiconductor.

Q: Are both parts RoHS compliant?

A: Yes. Both the RB751S-40FHTE61 and RB751SM-40FHT2R are ROHS3 compliant and carry identical moisture sensitivity levels (MSL 1 - Unlimited).