NRVB120LSFT1G Equivalent & Substitute Parts

Part Overview

The NRVB120LSFT1G is a Schottky rectifier diode manufactured by onsemi, rated for 20 V DC reverse voltage and 1 A average rectified current in a SOD-123FL surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter ranges for the same application category.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	450 mV @ 1 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	400 µA @ 20 V	—
Mounting Type	Surface Mount	—
Package / Case	SOD-123F	—
Operating Temperature - Junction	-55 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the NRVB120LSFT1G is determined by the following critical parameters:

Electrical Specifications:

Voltage - DC Reverse (Vr) (Max): 20 V minimum
Current - Average Rectified (Io): 1 A minimum
Voltage - Forward (Vf) (Max) @ If: ≤ 500 mV @ 1 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: ≤ 400 µA @ 20 V

Mechanical Specifications:

Mounting Type: Surface Mount
Package / Case: SOD-123F or compatible footprint
Operating Temperature - Junction: -55°C to 125°C minimum

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into three categories: MFR Recommended (active status with improved specifications), Parametric Equivalents (identical electrical and mechanical specifications), and Similar Parts (compatible specifications with minor variations in package or performance characteristics).

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Package	Temp Range [°C]	Automotive Grade
NRVB120LSFT1G	onsemi	Obsolete	20	1	450 @ 1A	400 @ 20V	SOD-123FL	-55 to 125	—
NRVB120VLSFT1G	onsemi	Active	20	1	300 @ 1A	15 @ 20V	SOD-123FL	-65 to 125	AEC-Q101
MBR120LSFT1G	onsemi	Active	20	1	450 @ 1A	400 @ 20V	SOD-123FL	-55 to 125	—
MBR120LSFT3G	onsemi	Active	20	1	450 @ 1A	400 @ 20V	SOD-123FL	-55 to 125	—
MBR1020VL-AU_R1_000A1	Panjit International Inc.	Active	20	1	340 @ 1A	600 @ 20V	SOD-123FL	-55 to 125	AEC-Q101
PMEG2010AEH,115	Nexperia USA Inc.	Active	20	1	430 @ 1A	200 @ 20V	SOD-123F	-40 to 150	AEC-Q100
PMEG2010BER,115	Nexperia USA Inc.	Active	20	1	450 @ 1A	50 @ 20V	SOD-123W	-40 to 150	—
PMEG2010EH,115	Nexperia USA Inc.	Active	20	1	500 @ 1A	200 @ 20V	SOD-123F	-40 to 150	AEC-Q100
PMEG2010ER,115	Nexperia USA Inc.	Active	20	1	340 @ 1A	1 @ 20V	SOD-123W	-40 to 150	—
RB051M-2YTR	Rohm Semiconductor	Active	20	3	460 @ 3A	900 @ 20V	SOD-123F	-40 to 125	—
SL02-GS08	Vishay General Semiconductor	Active	20	1.1	420 @ 1.1A	250 @ 20V	DO-219AB	-40 to 125	—

Engineering Selection Recommendations

MFR Recommended Substitute: NRVB120VLSFT1G

The NRVB120VLSFT1G is the manufacturer-recommended active replacement for the obsolete NRVB120LSFT1G. This part maintains identical voltage and current ratings while providing improved forward voltage characteristics (300 mV vs. 450 mV @ 1 A) and significantly reduced reverse leakage current (15 µA vs. 400 µA @ 20 V). The extended operating temperature range (-65°C to 125°C) and AEC-Q101 automotive qualification provide enhanced reliability for demanding applications. This part is the primary selection for direct replacement.

Parametric Equivalents: MBR120LSFT1G and MBR120LSFT3G

Both MBR120LSFT1G and MBR120LSFT3G are parametric equivalents manufactured by onsemi with identical electrical specifications to the original NRVB120LSFT1G. These parts maintain the same voltage rating (20 V), current rating (1 A), forward voltage (450 mV @ 1 A), and reverse leakage current (400 µA @ 20 V). The primary difference is packaging format: MBR120LSFT1G is supplied in Cut Tape (CT) & Digi-Reel®, while MBR120LSFT3G is supplied in Tape & Reel (TR). Both are active products with higher inventory availability than the original part.

Similar Parts with Compatible Specifications

The following parts meet the core electrical requirements (20 V, 1 A, fast recovery) with acceptable variations:

MBR1020VL-AU_R1_000A1 (Panjit): Meets all electrical specifications with improved forward voltage (340 mV @ 1 A). Includes AEC-Q101 automotive qualification. Higher reverse leakage current (600 µA @ 20 V) remains within acceptable limits for non-critical applications.
PMEG2010AEH,115 (Nexperia): Meets electrical specifications with forward voltage of 430 mV @ 1 A and reduced reverse leakage (200 µA @ 20 V). Includes AEC-Q100 automotive qualification. Extended maximum junction temperature (150°C) provides thermal margin. Package is SOD-123F (compatible footprint).
PMEG2010EH,115 (Nexperia): Meets electrical specifications with forward voltage at upper limit (500 mV @ 1 A). Includes AEC-Q100 automotive qualification. Extended maximum junction temperature (150°C). Package is SOD-123F (compatible footprint).
PMEG2010ER,115 (Nexperia): Meets electrical specifications with improved forward voltage (340 mV @ 1 A) and minimal reverse leakage (1 µA @ 20 V). Package is SOD-123W (different footprint; requires PCB layout verification).
SL02-GS08 (Vishay): Meets electrical specifications with slightly elevated current rating (1.1 A vs. 1 A). Forward voltage of 420 mV @ 1.1 A is acceptable. Package is DO-219AB (different footprint; requires PCB layout verification).

Parts Not Recommended for Direct Substitution

RB051M-2YTR (Rohm): Current rating of 3 A exceeds application requirements. Reverse leakage current of 900 µA @ 20 V is significantly elevated compared to the original specification. Not suitable for applications requiring low leakage performance.

Frequently Asked Questions (FAQ)

Q: Can I use NRVB120VLSFT1G as a direct replacement for NRVB120LSFT1G?

A: Yes. NRVB120VLSFT1G is the manufacturer-recommended active replacement. It maintains identical voltage (20 V) and current (1 A) ratings, operates within the same temperature range, and provides improved electrical performance with lower forward voltage and reverse leakage current. It is the preferred choice for new designs and obsolescence mitigation.

Q: What is the difference between MBR120LSFT1G and MBR120LSFT3G?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is packaging format: MBR120LSFT1G is supplied in Cut Tape (CT) & Digi-Reel®, while MBR120LSFT3G is supplied in Tape & Reel (TR). Selection depends on assembly equipment compatibility and procurement requirements.

Q: Can I substitute PMEG2010 series parts for the NRVB120LSFT1G?

A: PMEG2010 series parts (PMEG2010AEH,115, PMEG2010EH,115, PMEG2010ER,115) meet the core electrical requirements of 20 V, 1 A, and fast recovery. However, they use different package designations (SOD-123F or SOD-123W). Verify PCB footprint compatibility before selection. PMEG2010AEH,115 and PMEG2010EH,115 use SOD-123F (compatible with SOD-123FL). PMEG2010ER,115 uses SOD-123W (different footprint).

Q: What is the significance of the SOD-123FL versus SOD-123F package designation?

A: SOD-123FL and SOD-123F refer to the same physical package with identical footprints and pin configurations. The "L" designation in SOD-123FL indicates a specific lead finish or supplier variant. Parts specified as SOD-123F are mechanically and electrically compatible with SOD-123FL applications.

Q: Why does NRVB120VLSFT1G have lower forward voltage than the original NRVB120LSFT1G?

A: Forward voltage variation is a normal characteristic of Schottky diode manufacturing. NRVB120VLSFT1G represents an improved design iteration with optimized junction characteristics, resulting in lower forward voltage (300 mV vs. 450 mV @ 1 A). This improvement reduces power dissipation and heat generation in the application.

Q: Is AEC-Q101 or AEC-Q100 qualification required for my application?

A: AEC-Q101 and AEC-Q100 are automotive qualification standards. AEC-Q101 applies to discrete semiconductors including diodes. AEC-Q100 applies to integrated circuits. For automotive applications, select parts with appropriate qualification. NRVB120VLSFT1G (AEC-Q101), MBR1020VL-AU_R1_000A1 (AEC-Q101), PMEG2010AEH,115 (AEC-Q100), and PMEG2010EH,115 (AEC-Q100) carry automotive qualifications. Non-automotive applications do not require these certifications.

Q: Can I use RB051M-2YTR as a substitute?

A: RB051M-2YTR is not recommended for direct substitution. While it meets the 20 V voltage requirement, its 3 A current rating exceeds the 1 A specification of the original part. More significantly, its reverse leakage current of 900 µA @ 20 V is more than twice the original specification (400 µA @ 20 V), making it unsuitable for applications requiring low leakage performance.

Q: What is the impact of different maximum junction temperatures?

A: The original NRVB120LSFT1G specifies -55°C to 125°C. NRVB120VLSFT1G extends this to -65°C to 125°C, providing improved low-temperature performance. Nexperia PMEG2010 series parts specify -40°C to 150°C, offering extended high-temperature capability. Select based on application temperature requirements. Extended temperature ranges provide design margin but are not required for standard industrial applications operating within -40°C to 125°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed in this reference are RoHS3 compliant and have Moisture Sensitivity Level (MSL) of 1 (Unlimited), matching the original NRVB120LSFT1G specifications.

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