RSFDL RUG Equivalent & Substitute Parts

Part Overview

The RSFDL RUG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 200V DC reverse voltage and 500mA average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are necessary when the RSFDL RUG reaches end-of-life inventory depletion, when alternative packaging formats are required for manufacturing processes, or when higher current ratings or improved performance characteristics are needed for circuit redesign.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the RSFDL RUG are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications and mechanical form factor. These parts satisfy direct replacement requirements where circuit performance must remain unchanged:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 500 mA
Package / Case: DO-219AB
Mounting Type: Surface Mount

Similar Parts share the same reverse voltage rating and package form factor but differ in current rating, recovery time, or forward voltage characteristics. These parts are suitable for applications where higher current capacity or improved switching performance is acceptable:

Voltage - DC Reverse (Vr) (Max): 200 V
Package / Case: DO-219AB
Mounting Type: Surface Mount
Current - Average Rectified (Io): 1A or 2A (higher than 500mA)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [mA/A]	Vf (Max) @ If	trr [ns]	Ir @ Vr [µA]	Package	Packaging Type	Product Status	Inventory [Pcs]
RSFDL RUG	Taiwan Semiconductor Corporation	200	500mA	1.3 V @ 500 mA	150	5 @ 200 V	DO-219AB	Tape & Reel	Active	831
RSFDL	Taiwan Semiconductor Corporation	200	500mA	1.3 V @ 500 mA	150	5 @ 200 V	DO-219AB	Tape & Reel	Not For New Designs	13300
RSFDL R3G	Taiwan Semiconductor Corporation	200	500mA	1.3 V @ 500 mA	150	5 @ 200 V	DO-219AB	Cut Tape	Active	725
RS07D-GS08	Vishay General Semiconductor - Diodes Division	200	500mA	1.15 V @ 700 mA	150	10 @ 200 V	DO-219AB	Tape & Reel	Active	20200
VS-1EFH02-M3/I	Vishay General Semiconductor - Diodes Division	200	1A	930 mV @ 1 A	16	2 @ 200 V	DO-219AB	Tape & Reel	Active	50070
VS-2EFH02HM3/I	Vishay General Semiconductor - Diodes Division	200	2A	950 mV @ 2 A	25	2 @ 200 V	DO-219AB	Tape & Reel	Active	20100

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

RSFDL R3G is the recommended parametric equivalent when packaging format flexibility is acceptable. This part maintains identical electrical specifications (200V, 500mA, 150ns recovery time) and is classified as Active product status, ensuring continued availability and manufacturing support. The only difference is Cut Tape packaging instead of Tape & Reel format. RSFDL (base part number) is also a parametric equivalent but carries "Not For New Designs" status, limiting its suitability for new circuit implementations.

For Higher Current Applications (Similar Parts):

RS07D-GS08 (Vishay) is suitable when 500mA current capacity is marginal and forward voltage reduction is beneficial. This part maintains 200V reverse voltage and 150ns recovery time with lower forward voltage (1.15V @ 700mA vs. 1.3V @ 500mA). AEC-Q101 automotive qualification is included.

VS-1EFH02-M3/I (Vishay FRED Pt® series) provides 1A current capacity with significantly improved reverse recovery time (16ns vs. 150ns) and lower reverse leakage (2µA vs. 5µA). Extended operating temperature range (-65°C to 175°C vs. -55°C to 150°C) is available.

VS-2EFH02HM3/I (Vishay FRED Pt® series) provides 2A current capacity with 25ns recovery time and AEC-Q101 automotive qualification. This part is suitable for applications requiring double the current capacity with improved switching performance.

All substitute parts maintain ROHS3 compliance, DO-219AB package form factor, and surface mount mounting type.

Frequently Asked Questions (FAQ)

Q: Can RSFDL R3G replace RSFDL RUG in existing designs?

A: Yes. RSFDL R3G is a parametric equivalent with identical electrical specifications (200V, 500mA, 1.3V forward voltage, 150ns recovery time). The only difference is packaging format: RSFDL R3G is supplied in Cut Tape format while RSFDL RUG is supplied in Tape & Reel format. Both use DO-219AB package and surface mount technology. Verify that your assembly equipment can accommodate Cut Tape format.

Q: What is the difference between RSFDL and RSFDL RUG?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is product status: RSFDL RUG is Active status while RSFDL is classified as "Not For New Designs." For new circuit designs, RSFDL RUG or RSFDL R3G are preferred. RSFDL may be used for legacy product support or existing inventory management.

Q: Can I use RS07D-GS08 as a direct replacement?

A: RS07D-GS08 is a similar part, not a parametric equivalent. It maintains 200V reverse voltage and 500mA current rating with identical 150ns recovery time. However, forward voltage is lower (1.15V @ 700mA vs. 1.3V @ 500mA) and reverse leakage is higher (10µA vs. 5µA). This part is suitable when forward voltage reduction is beneficial and the higher leakage current is acceptable for the application. RS07D-GS08 includes AEC-Q101 automotive qualification.

Q: When should I use VS-1EFH02-M3/I or VS-2EFH02HM3/I?

A: These Vishay FRED Pt® series parts are suitable when circuit redesign allows higher current capacity and improved switching performance. VS-1EFH02-M3/I provides 1A capacity with 16ns recovery time (vs. 150ns). VS-2EFH02HM3/I provides 2A capacity with 25ns recovery time. Both have lower reverse leakage (2µA vs. 5µA) and extended temperature range (-65°C to 175°C). Use these parts when the application requires faster switching or higher current handling with improved thermal performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (RSFDL, RSFDL R3G, RS07D-GS08, VS-1EFH02-M3/I, VS-2EFH02HM3/I) are ROHS3 compliant and REACH unaffected. All parts use DO-219AB package with surface mount technology.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both are surface mount packaging formats for the same DO-219AB component. Tape & Reel format is supplied on continuous carrier tape wound on a reel, suitable for high-volume automated assembly. Cut Tape format is supplied as individual tape segments, suitable for lower-volume production or manual assembly. Component electrical specifications and performance are identical; only the delivery format differs.

Q: Can I substitute a higher current part (1A or 2A) in a 500mA circuit?

A: Yes, with circuit analysis. Higher current-rated parts (VS-1EFH02-M3/I at 1A or VS-2EFH02HM3/I at 2A) are backward compatible in 500mA applications. The diode will operate well below its maximum rating, resulting in improved reliability and lower junction temperature. However, verify that the improved switching characteristics (faster recovery time) do not introduce unwanted high-frequency effects in your specific circuit topology.

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