NRVTS1245EMFST3G Equivalent & Substitute Parts

Part Overview

The NRVTS1245EMFST3G is a Schottky rectifier diode manufactured by onsemi, rated for 45 V DC reverse voltage and 12 A average rectified current in a surface mount 5-DFN package. This component is classified as Obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The part carries automotive-grade qualification (AEC-Q101) and is RoHS3 compliant, making it suitable for automotive and industrial applications requiring fast recovery rectification.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io)	12 A
Voltage - Forward (Vf) (Max) @ If	600 mV @ 12 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	50 µA @ 45 V
Technology	Schottky
Grade	Automotive
Qualification	AEC-Q101
Package / Case	8-PowerTDFN, 5 Leads
Supplier Device Package	5-DFN (5x6) (8-SOFL)
Operating Temperature - Junction	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the NRVTS1245EMFST3G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for:

Reverse voltage rating (45 V maximum)
Average rectified current capacity (12 A)
Forward voltage drop (600 mV @ 12 A)
Recovery speed classification (Fast Recovery ≤ 500ns, > 200mA)
Reverse leakage current (50 µA @ 45 V)
Package type and pin configuration (5-DFN, 5x6, 8-SOFL)
Automotive grade and AEC-Q101 qualification
Operating temperature range (-55°C ~ 175°C)
RoHS3 compliance status

The NRVTS1245EMFST1G meets all these criteria as a parametric equivalent, differing only in packaging format (Tape & Reel versus standard packaging) and product status (Last Time Buy versus Obsolete).

Parameter Comparison

Parameter	NRVTS1245EMFST3G	NRVTS1245EMFST1G	Match Status
Manufacturer	onsemi	onsemi	Identical
Technology	Schottky	Schottky	Identical
Voltage - DC Reverse (Vr) (Max)	45 V	45 V	Identical
Current - Average Rectified (Io)	12 A	12 A	Identical
Voltage - Forward (Vf) (Max) @ If	600 mV @ 12 A	600 mV @ 12 A	Identical
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Identical
Current - Reverse Leakage @ Vr	50 µA @ 45 V	50 µA @ 45 V	Identical
Grade	Automotive	Automotive	Identical
Qualification	AEC-Q101	AEC-Q101	Identical
Package / Case	8-PowerTDFN, 5 Leads	8-PowerTDFN, 5 Leads	Identical
Supplier Device Package	5-DFN (5x6) (8-SOFL)	5-DFN (5x6) (8-SOFL)	Identical
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Last Time Buy	Different
Packaging Format	Standard	Tape & Reel (TR)	Different

Engineering Selection Recommendations

The NRVTS1245EMFST1G is a direct parametric equivalent to the NRVTS1245EMFST3G for all electrical and mechanical specifications. Both parts share identical base product number (NRVTS1245) and are manufactured by onsemi with full automotive-grade qualification and AEC-Q101 certification.

Selection between these parts is determined by procurement and supply chain requirements:

NRVTS1245EMFST3G: Obsolete status indicates end-of-life. Use only for legacy system maintenance or existing inventory depletion.
NRVTS1245EMFST1G: Last Time Buy status indicates limited future availability. This part is suitable for new designs and ongoing production requiring extended component lifecycle.

Both parts maintain identical electrical performance, thermal characteristics, and compliance certifications. The primary distinction is packaging format (Tape & Reel for NRVTS1245EMFST1G) and product lifecycle status. Selection should align with production volume requirements and supply chain planning horizons.

Frequently Asked Questions (FAQ)

Q: Can NRVTS1245EMFST1G be used as a direct replacement for NRVTS1245EMFST3G in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical ratings (45 V, 12 A), forward voltage characteristics (600 mV @ 12 A), recovery speed, and package configuration (5-DFN, 5x6). They share the same base product number and carry identical AEC-Q101 automotive qualification.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and packaging format. NRVTS1245EMFST3G is Obsolete, while NRVTS1245EMFST1G is Last Time Buy. NRVTS1245EMFST1G is supplied in Tape & Reel format, whereas NRVTS1245EMFST3G uses standard packaging. All electrical and mechanical specifications are identical.

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

A: No. Both parts operate across the identical temperature range (-55°C ~ 175°C) and maintain the same reverse leakage current (50 µA @ 45 V), forward voltage drop, and fast recovery speed characteristics.

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

A: NRVTS1245EMFST1G is the appropriate choice for new designs. Although marked as Last Time Buy, it offers better supply chain continuity compared to the Obsolete NRVTS1245EMFST3G. Designers should plan component procurement accordingly given the Last Time Buy status.

Q: Are both parts RoHS3 compliant?

A: Yes. Both NRVTS1245EMFST3G and NRVTS1245EMFST1G are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), making them suitable for automotive and industrial applications without additional environmental restrictions.

Q: Does the Tape & Reel packaging affect electrical performance?

A: No. Tape & Reel packaging is a supply and handling format only. It does not affect the electrical characteristics, thermal performance, or reliability of the diode itself. The component specifications remain identical regardless of packaging format.

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