NRVUS2GA Equivalent & Substitute Parts

Part Overview

The NRVUS2GA is a general-purpose rectifier diode manufactured by onsemi, rated for 400 V DC reverse voltage and 1.5 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as "Not For New Designs," indicating it has been superseded in onsemi's product portfolio. Identifying equivalent and substitute parts is necessary for legacy system support, design continuity, and procurement flexibility when the primary part becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 1.5	V @ A
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the NRVUS2GA is determined by matching the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1.5 A
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C (or wider)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Within 1.15 V to 1.4 V @ 1.5 A
Reverse Recovery Time (trr): 50 ns to 150 ns
Current - Reverse Leakage @ Vr: 1 µA to 5 µA @ 400 V
Capacitance @ Vr, F: 20 pF to 50 pF @ 4 V, 1 MHz

All substitute parts listed meet or exceed the mandatory parameters. Variations in forward voltage, recovery time, and leakage current remain within acceptable engineering tolerances for general-purpose rectification applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	trr [ns]	Ir @ Vr [µA @ V]	Package	Product Status
NRVUS2GA	onsemi	400	1.5	1.3 @ 1.5	75	5 @ 400	DO-214AC (SMA)	Not For New Designs
US2GA	onsemi	400	1.5	1.3 @ 1.5	50	5 @ 400	DO-214AC (SMA)	Not For New Designs
S2GA-13-F	Diodes Incorporated	400	1.5	1.15 @ 1.5	—	5 @ 400	DO-214AC (SMA)	Active
BYG20GHE3_A/H	Vishay General Semiconductor - Diodes Division	400	1.5	1.4 @ 1.5	75	1 @ 400	DO-214AC (SMA)	Active
HS2GA	SURGE	400	1.5	1.3 @ 1.5	50	5 @ 400	DO-214AC (SMA)	Active
RS2GA	Taiwan Semiconductor Corporation	400	1.5	1.3 @ 1.5	150	5 @ 400	DO-214AC (SMA)	Active
RS2GA R3G	Taiwan Semiconductor Corporation	400	1.5	1.3 @ 1.5	150	5 @ 400	DO-214AC (SMA)	Discontinued at DiGi Electronics
RS2GAH	Taiwan Semiconductor Corporation	400	1.5	1.3 @ 1.5	150	5 @ 400	DO-214AC (SMA)	Active

Engineering Selection Recommendations

Primary Equivalent (Parametric Match): The US2GA (onsemi) is the closest parametric equivalent to the NRVUS2GA, with identical voltage and current ratings, forward voltage characteristics, and package specifications. The US2GA features improved reverse recovery time (50 ns versus 75 ns), resulting in faster switching performance. Both parts carry identical compliance certifications (ROHS3, REACH Unaffected, AEC-Q101 Automotive Grade). The US2GA is available in higher inventory quantities (39,800 pcs) compared to the NRVUS2GA (1,230 pcs).

Active Product Alternatives: For new designs or long-term procurement, the following active-status parts provide full electrical and mechanical compatibility:

S2GA-13-F (Diodes Incorporated): Active product status with superior forward voltage performance (1.15 V @ 1.5 A). Operating temperature range extends to -65°C. Suitable for applications requiring lower forward voltage drop and extended low-temperature operation.
BYG20GHE3_A/H (Vishay): Active product with avalanche technology, offering superior reverse leakage characteristics (1 µA @ 400 V versus 5 µA). Maintains AEC-Q101 automotive qualification. Appropriate for applications requiring minimal leakage current.
HS2GA (SURGE): Active product with identical electrical characteristics to US2GA, including 50 ns reverse recovery time. Available in 1,193 pcs inventory.
RS2GAH (Taiwan Semiconductor Corporation): Active product with AEC-Q101 automotive qualification. Highest inventory availability among active alternatives (15,824 pcs). Reverse recovery time of 150 ns is acceptable for standard rectification applications.

Discontinued or Legacy Status: The RS2GA R3G is discontinued at DiGi Electronics and should not be selected for new procurement activities.

Frequently Asked Questions (FAQ)

Q: Can the US2GA directly replace the NRVUS2GA in existing designs?

A: Yes. The US2GA meets all mandatory electrical parameters (400 V, 1.5 A, DO-214AC package) and operating temperature range (-55°C to 150°C). Both parts carry identical compliance certifications. The US2GA features faster reverse recovery time (50 ns versus 75 ns), which improves switching performance without introducing compatibility issues.

Q: What is the difference between the NRVUS2GA and S2GA-13-F?

A: Both parts are rated for 400 V and 1.5 A in DO-214AC packages. The S2GA-13-F offers lower forward voltage (1.15 V @ 1.5 A versus 1.3 V), reducing power dissipation. The S2GA-13-F is an active product from Diodes Incorporated, while the NRVUS2GA is marked "Not For New Designs." The S2GA-13-F extends the operating temperature range to -65°C.

Q: Why does the BYG20GHE3_A/H have lower reverse leakage current?

A: The BYG20GHE3_A/H employs avalanche technology, which inherently produces lower reverse leakage (1 µA @ 400 V) compared to standard rectifier technology (5 µA @ 400 V). This characteristic is beneficial in applications sensitive to leakage current but does not affect forward conduction performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, meeting environmental and hazardous substance restrictions.

Q: Which substitute part has the best availability?

A: The RS2GAH (Taiwan Semiconductor Corporation) offers the highest inventory availability at 15,824 pcs, followed by US2GA at 39,800 pcs. Both are active products with full electrical equivalence to the NRVUS2GA.

Q: Can I use RS2GA instead of RS2GAH?

A: Yes. Both RS2GA and RS2GAH are parametrically equivalent with identical electrical ratings. The RS2GAH carries AEC-Q101 automotive qualification, while RS2GA does not specify this certification. For automotive applications, RS2GAH is the preferred selection.

Q: What is the significance of the DO-214AC (SMA) package designation?

A: DO-214AC and SMA are equivalent package designations for the same surface mount form factor. All listed substitute parts use this identical package, ensuring mechanical and thermal compatibility without PCB layout modifications.

Q: Is the NRVUS2GA suitable for new design work?

A: No. The NRVUS2GA is classified as "Not For New Designs." For new applications, select from active-status alternatives such as S2GA-13-F, BYG20GHE3_A/H, HS2GA, or RS2GAH.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message