NRVB2045EMFST3G Equivalent & Substitute Parts

Part Overview

The NRVB2045EMFST3G is an active Schottky rectifier diode manufactured by onsemi, rated for 45 V DC reverse voltage and 20 A average rectified current. This component is designed for surface mount applications in 5-DFN (5x6) packaging with 5 leads. The part is currently in active production status with 1774 units in stock.

Equivalent and substitute parts are identified when components share identical electrical specifications, mechanical compatibility, and packaging requirements. This reference enables circuit designers and procurement specialists to source alternative components when primary part availability is constrained or when design flexibility is required within the same electrical performance envelope.

Substiute Parts

NRVB2045EMFST3G

onsemiIn Stock: 1820NRVB2045EMFST3G Datasheet

Current PartRFQ

NRVB2045EMFST1G

onsemiIn Stock: 1638NRVB2045EMFST1G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NRVB2045EMFST3G are identified based on strict electrical and mechanical parameter matching. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Voltage - DC Reverse (Vr) (Max): 45 V
• Current - Average Rectified (Io): 20 A
• Voltage - Forward (Vf) (Max) @ If: 640 mV @ 20 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 400 µA @ 45 V
• Operating Temperature - Junction: -55°C to 150°C

Mechanical Parameters (Must Match Exactly):

• Package / Case: 8-PowerTDFN, 5 Leads
• Supplier Device Package: 5-DFN (5x6) (8-SOFL)
• Mounting Type: Surface Mount
• Technology: Schottky

Compliance Parameters (Must Match Exactly):

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

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes within the same design application.

Parameter Comparison

Engineering Selection Recommendations

Both NRVB2045EMFST3G and NRVB2045EMFST1G are active production components manufactured by onsemi with identical electrical and mechanical specifications. Selection between these parts is based on the following engineering considerations:

Product Status: Both components maintain active production status, ensuring long-term availability and supply chain stability.

Compliance Certifications: Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

Packaging and Handling: Both components are supplied in identical 5-DFN (5x6) surface mount packages with MSL 1 (Unlimited) moisture sensitivity rating, eliminating special storage or handling requirements.

Electrical Performance: Identical electrical characteristics across all specified parameters ensure direct functional interchangeability in circuit applications without design modification.

Inventory Availability: NRVB2045EMFST3G maintains higher inventory levels (1774 units) compared to NRVB2045EMFST1G (1546 units), which may influence procurement decisions based on lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can NRVB2045EMFST1G be used as a direct replacement for NRVB2045EMFST3G in existing designs?

A: Yes. Both parts share identical electrical specifications, mechanical packaging, and compliance certifications. No circuit design modifications are required for substitution.

Q: Are there any differences in thermal performance between these two part numbers?

A: No. Both components specify identical operating temperature ranges (-55°C to 150°C junction temperature) and identical forward voltage characteristics at rated current.

Q: Do these parts require different PCB footprints or solder reflow profiles?

A: No. Both parts use the identical 5-DFN (5x6) package with 5 leads and 8-PowerTDFN case designation. PCB layout and assembly processes remain unchanged.

Q: What is the significance of the different suffixes (ST3G vs. ST1G) in the part numbers?

A: The suffixes indicate different manufacturing date codes or tape reel configurations. The electrical and mechanical specifications remain identical across all suffix variations of the NRVB2045 base product number.

Q: Are moisture sensitivity precautions required for either part?

A: No. Both components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling procedures apply without special dry storage requirements.

Q: Can these Schottky diodes be used in high-frequency switching applications?

A: Yes. Both parts specify fast recovery characteristics (≤ 500ns for currents > 200mA), making them suitable for switching power supply and high-frequency rectification applications.

Q: What is the maximum reverse leakage current at rated voltage?

A: Both parts specify 400 µA maximum reverse leakage current at 45 V DC reverse voltage.