RS3K V7G Equivalent & Substitute Parts

Part Overview

The RS3K V7G is a general-purpose fast recovery rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

The RS3K V7G serves applications requiring fast recovery characteristics (≤500 ns) with moderate current handling in compact surface mount form factors. Discontinuation status requires engineers to evaluate active alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

RS3K V7G

Taiwan Semiconductor CorporationIn Stock: 930RS3K V7G Datasheet

Current PartRFQ

RS3K

Taiwan Semiconductor CorporationIn Stock: 2820RS3K Datasheet

DirectRFQ

UFS580J/TR13

Microchip TechnologyIn Stock: 878UFS580J/TR13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RS3K V7G is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Voltage - DC Reverse (Vr) (Max): 800 V minimum
• Package / Case: DO-214AB, SMC (surface mount form factor)
• Mounting Type: Surface Mount
• Speed Classification: Fast Recovery ≤500ns, >200mA (Io)
• Current - Reverse Leakage @ Vr: 10 µA @ 800 V

Allowable Variation Parameters:

• Current - Average Rectified (Io): Equal or greater than 3 A
• Operating Temperature - Junction: Equal or greater than -55°C to 150°C range
• Reverse Recovery Time (trr): Equal or less than 500 ns

Substitute parts must maintain identical voltage and package specifications while meeting or exceeding current handling and thermal performance. Compliance certifications (RoHS, REACH) are evaluated based on product status and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Preferred):

The RS3K (base part number, active status) manufactured by Taiwan Semiconductor Corporation is the direct functional equivalent to the RS3K V7G. Both parts share identical electrical specifications: 800 V reverse voltage, 3 A average rectified current, 500 ns reverse recovery time, and 10 µA reverse leakage current. The RS3K is currently active with 2800 pieces in stock and maintains ROHS3 compliance. The primary difference is packaging format: RS3K is supplied in Tape & Reel (TR) configuration versus the discontinued V7G variant. This substitution requires no circuit redesign and maintains full regulatory compliance.

Alternative Substitute (Higher Current Rating):

The UFS580J/TR13 manufactured by Microchip Technology is a similar substitute suitable for applications where increased current capacity is beneficial. This part maintains the 800 V reverse voltage and DO-214AB package compatibility. The UFS580J/TR13 provides 5 A average rectified current (versus 3 A) and superior reverse recovery time of 60 ns (versus 500 ns), enabling improved switching performance in high-frequency applications. However, this part is RoHS non-compliant and operates to a maximum junction temperature of 175°C (versus 150°C for the RS3K V7G). Selection of UFS580J/TR13 requires verification of RoHS compliance requirements for the end application.

Inventory Availability:

RS3K (direct equivalent): 2800 pieces in stock UFS580J/TR13 (alternative): 786 pieces in stock

Frequently Asked Questions (FAQ)

Q: Can the RS3K directly replace the RS3K V7G in existing designs?

A: Yes. The RS3K is the direct equivalent with identical electrical specifications. The V7G designation indicates a packaging variant (bulk versus tape & reel). No circuit modifications are required. Verify that your assembly process accommodates tape & reel packaging if transitioning from bulk stock.

Q: What is the difference between RS3K V7G and RS3K?

A: Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical ratings (800 V, 3 A, 500 ns recovery time). The primary difference is packaging: RS3K V7G was supplied in bulk packaging and is discontinued; RS3K is the active equivalent supplied in Tape & Reel (TR) format. Electrical performance is identical.

Q: Can I use the UFS580J/TR13 as a substitute?

A: The UFS580J/TR13 is electrically compatible in the same DO-214AB package and maintains 800 V reverse voltage rating. However, three factors require evaluation: (1) The UFS580J/TR13 is RoHS non-compliant, which may conflict with end-product regulatory requirements; (2) It provides 5 A current capacity versus 3 A, which is acceptable for designs rated at 3 A; (3) It offers superior reverse recovery time (60 ns versus 500 ns), which improves switching performance but may require circuit validation in sensitive applications. Confirm RoHS compliance requirements before selection.

Q: Are there thermal considerations when substituting these parts?

A: The RS3K operates to -55°C to 150°C junction temperature. The UFS580J/TR13 extends to -55°C to 175°C. Both parts are rated for identical reverse leakage current (10 µA @ 800 V). If your application operates near the 150°C upper limit, the UFS580J/TR13 provides additional thermal margin. Verify that your thermal design accommodates the selected part's maximum junction temperature.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) packaging and bulk packaging contain identical die and electrical characteristics. The packaging format affects only procurement, handling, and assembly processes. Electrical specifications remain unchanged.

Q: What compliance certifications apply to each substitute?

A: RS3K V7G and RS3K: ROHS3 Compliant, REACH Unaffected. UFS580J/TR13: RoHS non-compliant, REACH Unaffected. All three parts are classified as EAR99 for export control purposes. Verify your end-product regulatory requirements before final selection.

Q: Can I mix RS3K and UFS580J/TR13 in the same design?

A: Yes, if the circuit design accommodates the UFS580J/TR13's superior reverse recovery time (60 ns versus 500 ns). Mixing parts with different recovery characteristics may introduce timing variations in switching circuits. Validate circuit behavior with the faster recovery device to ensure no unintended interactions occur.