NRVB1240MFST3G Equivalent & Substitute Parts

Part Overview

The NRVB1240MFST3G is an active Schottky rectifier diode manufactured by onsemi, rated for 40 V DC reverse voltage and 12 A average rectified current in a surface mount 5-DFN (5x6) package. This component is designed for high-speed switching applications requiring fast recovery characteristics (≤500 ns). The part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1), making it suitable for standard manufacturing environments. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and packaging options while maintaining identical electrical and mechanical specifications.

Substiute Parts

NRVB1240MFST3G

onsemiIn Stock: 878NRVB1240MFST3G Datasheet

Current PartRFQ

NRVB1240MFST1G

onsemiIn Stock: 5097NRVB1240MFST1G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NRVB1240MFST3G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part NRVB1240MFST1G shares the identical base product number (NRVB1240) and maintains full parametric compatibility:

Critical Substitution Parameters:

• Voltage rating: 40 V DC reverse (Vr)
• Current rating: 12 A average rectified (Io)
• Forward voltage: 680 mV @ 12 A
• Recovery speed: Fast Recovery ≤500 ns, >200 mA
• Reverse leakage: 500 µA @ 40 V
• Package: 5-DFN (5x6) (8-SOFL), 8-PowerTDFN, 5 Leads
• Operating temperature range: -55°C to 150°C
• Compliance: ROHS3, REACH Unaffected, MSL 1

The primary difference between the main part and substitute is packaging format: NRVB1240MFST3G is supplied in standard packaging, while NRVB1240MFST1G is supplied in Tape & Reel (TR) format. Both parts are manufactured by onsemi and carry active product status.

Parameter Comparison

Engineering Selection Recommendations

Both NRVB1240MFST3G and NRVB1240MFST1G are active products from onsemi with full ROHS3 compliance and REACH unaffected status. Selection between these parts is based on supply chain requirements and packaging format:

NRVB1240MFST3G is appropriate for applications requiring standard packaging format with current inventory of 780 pieces available.

NRVB1240MFST1G is appropriate for high-volume production environments utilizing automated pick-and-place assembly, with significantly higher inventory availability (5047 pieces) in Tape & Reel format.

Both parts maintain identical electrical performance, thermal characteristics, and regulatory compliance. The choice between them does not affect circuit design, PCB layout, or thermal management strategies. Selection should be based on manufacturing process requirements and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can NRVB1240MFST1G be used as a direct replacement for NRVB1240MFST3G?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: NRVB1240MFST1G is supplied in Tape & Reel format while NRVB1240MFST3G is supplied in standard packaging. PCB footprint, electrical performance, and thermal characteristics are identical.

Q: What does the packaging format difference mean for assembly?

A: NRVB1240MFST1G in Tape & Reel format is designed for automated pick-and-place assembly equipment. NRVB1240MFST3G in standard packaging is suitable for manual handling or lower-volume assembly processes. The physical component dimensions and pinout remain unchanged.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts share identical specifications for voltage rating (40 V), current rating (12 A), forward voltage (680 mV @ 12 A), recovery speed (≤500 ns), reverse leakage (500 µA @ 40 V), and operating temperature range (-55°C to 150°C).

Q: Do both parts meet the same compliance standards?

A: Yes. Both NRVB1240MFST3G and NRVB1240MFST1G are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity level).

Q: Which part should be selected for new designs?

A: Selection depends on manufacturing volume and assembly process. For high-volume automated assembly, NRVB1240MFST1G (Tape & Reel) is standard practice. For lower volumes or manual assembly, either part is suitable based on availability and supply chain preference.

Q: Is the 5-DFN (5x6) package footprint identical for both parts?

A: Yes. Both parts use the identical 5-DFN (5x6) (8-SOFL) package with 8-PowerTDFN configuration and 5 leads. PCB layout and component placement are interchangeable.