NRVRGF1G Equivalent & Substitute Parts

Part Overview

The NRVRGF1G is a general-purpose rectifier diode manufactured by onsemi, rated for 400 V DC reverse voltage and 1 A average rectified current in a surface mount SMA package. This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product portfolio. Identifying equivalent and substitute parts is necessary for applications requiring continued support, legacy system maintenance, or when the primary part becomes unavailable.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A
Reverse Recovery Time (trr)	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C

Substitute Part Grouping Explanation

Substitution of the NRVRGF1G is determined by matching the following critical electrical and mechanical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
Reverse Recovery Time (trr): 150 ns
Current - Reverse Leakage @ Vr: 5 µA @ 400 V
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters:

Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount

Parts meeting these specifications are classified as parametric equivalents or similar alternatives. Deviations in operating temperature range, capacitance, or product status are noted but do not disqualify substitution when electrical and mechanical parameters align.

Parameter Comparison

Parameter	NRVRGF1G (onsemi)	RGF1G (onsemi)	RS1GHE3_A/H (Vishay)
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V
Current - Average Rectified (Io)	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C	-65°C ~ 175°C	-55°C ~ 150°C
Capacitance @ Vr, F	8.5 pF @ 4V, 1MHz	8.5 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz
Product Status	Not For New Designs	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Qualification	AEC-Q101	Not specified	AEC-Q101

Engineering Selection Recommendations

RGF1G (onsemi): This part is a parametric equivalent to the NRVRGF1G, sharing identical electrical specifications and operating temperature range. Both parts carry "Not For New Designs" status from onsemi. The RGF1G is suitable for direct substitution in legacy applications where the NRVRGF1G is unavailable. Inventory availability is significantly higher for the RGF1G (74,767 pcs vs. 756 pcs).

RS1GHE3_A/H (Vishay General Semiconductor - Diodes Division): This part meets all critical electrical parameters and package requirements. The RS1GHE3_A/H carries Active product status and AEC-Q101 automotive qualification, making it suitable for new designs and applications requiring long-term availability. The operating temperature range is narrower (-55°C ~ 150°C vs. -65°C ~ 175°C), and capacitance is slightly higher (10 pF vs. 8.5 pF). These differences are within acceptable tolerances for general-purpose rectification applications. Packaging is supplied as Cut Tape (CT) rather than Tape & Reel (TR).

For applications requiring the widest operating temperature range and exact parameter matching, the RGF1G is preferred. For applications prioritizing long-term availability and active product support, the RS1GHE3_A/H is recommended.

Frequently Asked Questions (FAQ)

Q: Can the RGF1G replace the NRVRGF1G directly?

A: Yes. The RGF1G is a parametric equivalent with identical voltage rating (400 V), current rating (1 A), forward voltage drop (1.3 V @ 1 A), reverse recovery time (150 ns), and reverse leakage current (5 µA @ 400 V). Both parts use the DO-214AC (SMA) surface mount package and share the same operating temperature range (-65°C ~ 175°C). Direct substitution is supported.

Q: What are the differences between the RS1GHE3_A/H and the NRVRGF1G?

A: The RS1GHE3_A/H matches all critical electrical parameters but has a narrower operating temperature range (-55°C ~ 150°C vs. -65°C ~ 175°C) and slightly higher capacitance (10 pF vs. 8.5 pF @ 4V, 1MHz). The RS1GHE3_A/H is supplied in Cut Tape packaging rather than Tape & Reel. The RS1GHE3_A/H carries Active product status and AEC-Q101 qualification, whereas the NRVRGF1G is marked "Not For New Designs."

Q: Is the RS1GHE3_A/H suitable for applications requiring the full -65°C to 175°C temperature range?

A: No. The RS1GHE3_A/H is rated for -55°C ~ 150°C. Applications requiring operation below -55°C or above 150°C must use the NRVRGF1G or RGF1G.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel packaging supplies components on continuous tape wound on a reel, suitable for high-volume automated assembly. Cut Tape supplies components on tape segments, typically used for lower-volume orders or manual assembly. Both formats use the same DO-214AC (SMA) component package.

Q: Are all three parts RoHS3 compliant?

A: Yes. The NRVRGF1G, RGF1G, and RS1GHE3_A/H are all ROHS3 compliant.

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

A: The RS1GHE3_A/H is recommended for new designs. It carries Active product status and AEC-Q101 automotive qualification, ensuring long-term availability and manufacturer support. The NRVRGF1G and RGF1G are both marked "Not For New Designs" and should be reserved for legacy system maintenance and support.

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