RSFJL RTG Equivalent & Substitute Parts

Part Overview

The RSFJL RTG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 500 mA average rectified current in a Surface Mount Sub SMA package (DO-219AB). This component is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the RSFJL RTG reaches end-of-life status, when inventory becomes constrained, or when design requirements necessitate alternative electrical characteristics such as higher current ratings or improved reverse recovery time performance.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	500	mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	V
Reverse Recovery Time (trr)	250	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Package / Case	DO-219AB	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the RSFJL RTG is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Package / Case: DO-219AB
Mounting Type: Surface Mount
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Parameters:

Current - Average Rectified (Io): Equal or greater than 500 mA
Voltage - Forward (Vf) (Max) @ If: Equal or lower than 1.3 V at rated current
Reverse Recovery Time (trr): Equal or lower than 250 ns
Current - Reverse Leakage @ Vr: Equal or lower than 5 µA @ 600 V
Operating Temperature - Junction: Equal or greater than -55°C to 150°C range

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical specifications with potential packaging or status variations) and Similar Parts (higher current ratings or improved performance characteristics within the same voltage and package class).

Parameter Comparison

Parameter	RSFJL RTG	RSFJL	RSFJL R3G	VS-1EFU06HM3/I	VS-2EFU06HM3/I
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	500 mA	500 mA	500 mA	1 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	1.3 V @ 500 mA	1.3 V @ 500 mA	1.2 V @ 1 A	1.35 V @ 2 A
Reverse Recovery Time (trr)	250 ns	500 ns	250 ns	32 ns	55 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	3 µA @ 600 V	3 µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C
Product Status	Active	Not For New Designs	Discontinued at DiGi Electronics	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	-	-	-	Automotive	Automotive
Qualification	-	-	-	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

RSFJL (Parametric Equivalent): This part maintains identical electrical specifications to the RSFJL RTG with matching 600 V reverse voltage, 500 mA current rating, and 250 ns reverse recovery time. However, product status is listed as "Not For New Designs," indicating this variant should not be selected for new circuit designs. Existing inventory of 12,300 pieces is available in Tape & Reel packaging. This part is suitable only for legacy system maintenance or replacement applications where the original specification must be preserved.

RSFJL R3G (Parametric Equivalent): This part provides identical electrical performance to the RSFJL RTG, including 600 V reverse voltage, 500 mA current rating, and 250 ns reverse recovery time. Product status is "Discontinued at DiGi Electronics," indicating limited future availability. Current inventory is 1,068 pieces. This part should not be selected for new designs due to discontinuation status.

VS-1EFU06HM3/I (Similar Part - Higher Current Rating): This Vishay part offers 600 V reverse voltage with doubled current rating of 1 A, superior reverse recovery time of 32 ns, and lower reverse leakage current of 3 µA. Operating temperature range extends to 175°C. This part carries Automotive grade qualification (AEC-Q101) and Active product status with 36,329 pieces in inventory. Selection of this part is appropriate when higher current capacity or improved switching performance is required within the same voltage class and package footprint.

VS-2EFU06HM3/I (Similar Part - Highest Current Rating): This Vishay part provides 600 V reverse voltage with 2 A current rating, superior reverse recovery time of 55 ns, and lower reverse leakage current of 3 µA. Operating temperature range extends to 175°C. This part carries Automotive grade qualification (AEC-Q101) and Active product status with 10,200 pieces in inventory. Selection of this part is appropriate for applications requiring maximum current capacity within the 600 V voltage class and DO-219AB package.

For new designs, selection should prioritize parts with Active product status: RSFJL RTG (original specification) or Vishay VS-1EFU06HM3/I or VS-2EFU06HM3/I (higher performance alternatives).

Frequently Asked Questions (FAQ)

Q: Can RSFJL RTG be directly replaced with RSFJL?

A: RSFJL provides identical electrical specifications (600 V, 500 mA, 250 ns reverse recovery time) and is mechanically compatible in the DO-219AB package. However, RSFJL carries "Not For New Designs" status, limiting its use to legacy system maintenance only.

Q: What is the difference between RSFJL RTG and RSFJL R3G?

A: Both parts are parametric equivalents with identical electrical ratings (600 V, 500 mA, 250 ns reverse recovery time) and DO-219AB packaging. The primary difference is product status: RSFJL RTG is Active, while RSFJL R3G is Discontinued at DiGi Electronics. RSFJL R3G should not be selected for new designs.

Q: Can VS-1EFU06HM3/I be used as a drop-in replacement for RSFJL RTG?

A: VS-1EFU06HM3/I is mechanically compatible (DO-219AB package, Surface Mount) and electrically superior in several parameters: 1 A current rating (versus 500 mA), 32 ns reverse recovery time (versus 250 ns), and 3 µA reverse leakage (versus 5 µA). Forward voltage at rated current is 1.2 V @ 1 A, which is lower than RSFJL RTG at 1.3 V @ 500 mA. This part is suitable for direct replacement in applications where the higher current capacity does not create circuit design conflicts.

Q: What are the advantages of VS-2EFU06HM3/I over RSFJL RTG?

A: VS-2EFU06HM3/I provides 2 A current rating (versus 500 mA), 55 ns reverse recovery time (versus 250 ns), lower reverse leakage current of 3 µA (versus 5 µA), and extended operating temperature range to 175°C (versus 150°C). This part carries Automotive grade qualification (AEC-Q101). Selection is appropriate for applications requiring higher current capacity or automotive-grade reliability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RSFJL RTG, RSFJL, RSFJL R3G, VS-1EFU06HM3/I, and VS-2EFU06HM3/I are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the difference in reverse recovery time between RSFJL RTG and Vishay alternatives?

A: RSFJL RTG has 250 ns reverse recovery time. VS-1EFU06HM3/I has 32 ns, and VS-2EFU06HM3/I has 55 ns. Faster reverse recovery time reduces switching losses and improves efficiency in high-frequency applications.

Q: Can RSFJL RTG be used in automotive applications?

A: RSFJL RTG does not carry automotive grade qualification or AEC-Q101 certification. For automotive applications, VS-1EFU06HM3/I or VS-2EFU06HM3/I are appropriate selections, as both carry Automotive grade and AEC-Q101 qualification.

Q: What packaging options are available for substitute parts?

A: All substitute parts are supplied in Tape & Reel (TR) packaging for Surface Mount assembly. The mechanical package is DO-219AB (Sub SMA) for all listed parts.

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