NRVS3JB Equivalent & Substitute Parts Reference

Part Overview

The NRVS3JB is a general-purpose rectifier diode manufactured by onsemi, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AA (SMB) package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this component is already deployed.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 3 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	40	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the NRVS3JB is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Technology: Standard (for direct equivalence)

Secondary Compliance Criteria:

Automotive Grade and AEC-Q101 Qualification
RoHS3 Compliance
Operating Temperature Range: -55°C to 150°C minimum

Parts meeting all primary criteria are classified as parametric equivalents. Parts with reduced current rating (2 A instead of 3 A) or alternative technology (Avalanche vs. Standard) are classified as similar but not direct equivalents. Product status (Active vs. Discontinued) is noted for procurement planning but does not disqualify a part from functional substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Grade	AEC-Q101	Product Status
NRVS3JB	onsemi	600	3	1.15 @ 3 A	1.5	10 @ 600 V	DO-214AA (SMB)	Automotive	Yes	Not For New Designs
S3JB	HY Electronic (Cayman) Limited	600	3	1.1 @ 3 A	—	5 @ 600 V	DO-214AA (SMB)	Automotive	Yes	Active
AS3BJHM3_A/H	Vishay General Semiconductor - Diodes Division	600	2	1.05 @ 3 A	1.5	20 @ 600 V	DO-214AA (SMB)	Automotive	Yes	Active
S3JB R5G	Taiwan Semiconductor Corporation	600	3	1.15 @ 3 A	1.5	10 @ 600 V	DO-214AA (SMB)	—	—	Discontinued at DiGi Electronics
S3JBH	Taiwan Semiconductor Corporation	600	3	1.15 @ 3 A	1.5	10 @ 600 V	DO-214AA (SMB)	Automotive	Yes	Active
S3JBHE3-TP	Micro Commercial Co	600	3	1.15 @ 3 A	—	10 @ 600 V	DO-214AA (SMB)	Automotive	Yes	Active
S3JBHR5G	Taiwan Semiconductor Corporation	600	3	1.15 @ 3 A	1.5	10 @ 600 V	DO-214AA (SMB)	—	—	Discontinued at DiGi Electronics

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitution):

The following parts satisfy all primary substitution criteria and maintain automotive-grade qualification with AEC-Q101 certification:

S3JB (HY Electronic): Active product status with identical voltage and current ratings. Forward voltage is 50 mV lower (1.1 V vs. 1.15 V), and reverse leakage is reduced to 5 µA. Suitable for direct replacement in new procurement.
S3JBH (Taiwan Semiconductor Corporation): Active product with identical electrical specifications to NRVS3JB, including forward voltage (1.15 V), reverse recovery time (1.5 µs), and reverse leakage (10 µA). Maintains automotive grade and AEC-Q101 qualification.
S3JBHE3-TP (Micro Commercial Co): Active product with matching voltage, current, and forward voltage specifications. Automotive grade and AEC-Q101 qualified. Suitable for direct replacement.

Similar Part (Current Rating Reduction):

AS3BJHM3_A/H (Vishay General Semiconductor): Rated for 2 A average rectified current instead of 3 A. This part is not suitable for applications requiring the full 3 A rating. Avalanche technology differs from standard rectifier technology. Use only where 2 A maximum current is acceptable.

Discontinued Parts (Procurement Constraints):

S3JB R5G (Taiwan Semiconductor Corporation): Discontinued at DiGi Electronics. Electrical specifications match NRVS3JB exactly. Available inventory is limited (1,400 pcs). Use only if current active alternatives are unavailable.
S3JBHR5G (Taiwan Semiconductor Corporation): Discontinued at DiGi Electronics. Electrical specifications match NRVS3JB. Limited inventory (4,076 pcs). Use only if current active alternatives are unavailable.

Recommended Selection Priority:

S3JBH (Taiwan Semiconductor Corporation) — Active status, full specification match, automotive qualified
S3JBHE3-TP (Micro Commercial Co) — Active status, full specification match, automotive qualified
S3JB (HY Electronic) — Active status, improved reverse leakage performance, automotive qualified
Discontinued alternatives only if active parts are unavailable

Frequently Asked Questions (FAQ)

Q: Can the S3JB replace the NRVS3JB directly?

A: Yes. The S3JB meets all primary substitution criteria: 600 V reverse voltage, 3 A current rating, DO-214AA package, and automotive AEC-Q101 qualification. The lower forward voltage (1.1 V vs. 1.15 V) and reduced reverse leakage (5 µA vs. 10 µA) represent improved performance characteristics.

Q: Why is the AS3BJHM3_A/H listed as a similar part rather than an equivalent?

A: The AS3BJHM3_A/H has a maximum current rating of 2 A, not 3 A. This represents a 33% reduction in current capacity. It is suitable only for applications where the maximum required current does not exceed 2 A. Additionally, it uses Avalanche technology rather than standard rectifier technology.

Q: What is the difference between the discontinued parts (S3JB R5G, S3JBHR5G) and active alternatives?

A: Discontinued parts have identical electrical specifications but are no longer in active production. Inventory is limited and may become unavailable. Active alternatives (S3JBH, S3JBHE3-TP, S3JB) are currently manufactured and have assured long-term availability.

Q: Are all substitute parts automotive qualified?

A: The active parametric equivalents (S3JB, S3JBH, S3JBHE3-TP) carry automotive grade designation and AEC-Q101 qualification. The discontinued parts (S3JB R5G, S3JBHR5G) do not list grade or qualification in their specifications. The AS3BJHM3_A/H is automotive qualified but has reduced current rating.

Q: Can I use these parts interchangeably in existing designs?

A: Yes, for the parametric equivalents (S3JB, S3JBH, S3JBHE3-TP). All three maintain the same package (DO-214AA), voltage rating (600 V), current rating (3 A), and mounting type (surface mount). No PCB layout changes are required. The AS3BJHM3_A/H is not interchangeable due to reduced current rating.

Q: What is the significance of RoHS3 compliance?

A: All listed parts are RoHS3 compliant, indicating they meet Restriction of Hazardous Substances regulations. This is a standard requirement for electronic components in most markets and does not differentiate between substitute options.

Q: Why do some parts list "Vendor Undefined" for REACH status?

A: REACH status reflects regulatory compliance information provided by the manufacturer. "Vendor Undefined" indicates the manufacturer has not provided explicit REACH compliance documentation. This does not disqualify the part from use but may require additional verification from the supplier if REACH compliance documentation is required for your application.

Q: What is the operating temperature range consideration?

A: The NRVS3JB operates from -55°C to 150°C. All parametric equivalents maintain this range. The AS3BJHM3_A/H extends to 175°C, which is not a limiting factor for substitution but represents an extended capability not required for direct replacement.

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