RSFBL RUG Equivalent & Substitute Parts

Part Overview

The RSFBL RUG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100V DC reverse voltage and 500mA average rectified current in a Surface Mount Sub SMA package (DO-219AB). This component is classified as a fast recovery diode with a reverse recovery time of 150 ns and is actively produced with ROHS3 compliance. Substitute parts are identified to provide alternative sourcing options where component availability, packaging preferences, or performance specifications require alternatives within the same electrical and mechanical classification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	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 @ 100 V
Capacitance @ Vr, F	4	pF @ 4V, 1MHz
Package / Case	DO-219AB	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the RSFBL RUG is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100V minimum
Package / Case: DO-219AB (Surface Mount)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Operating Temperature Range: Minimum -55°C to +150°C

Secondary Compatibility Factors:

Current - Average Rectified (Io): Equal to or greater than 500mA
Speed Classification: Fast Recovery (≤500ns, >200mA)
Reverse Recovery Time (trr): Performance parameter; lower values indicate faster switching
Current - Reverse Leakage @ Vr: Lower values indicate superior reverse blocking characteristics

The substitute parts ES07B-GS08, ES07B-GS18, and VS-2EFH01HM3/I meet the primary substitution criteria. ES07B-GS08 provides direct electrical equivalence at 500mA. ES07B-GS18 and VS-2EFH01HM3/I offer higher current ratings (1.2A and 2A respectively), enabling use in applications requiring greater current capacity while maintaining the same voltage and package specifications.

Parameter Comparison

Parameter	RSFBL RUG	ES07B-GS08	ES07B-GS18	VS-2EFH01HM3/I
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	500 mA	500 mA	1.2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	980 mV @ 1 A	980 mV @ 1 A	950 mV @ 2 A
Speed Classification	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA	Fast Recovery ≤500ns, >200mA
Reverse Recovery Time (trr)	150 ns	25 ns	25 ns	16 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	2 µA @ 100 V
Capacitance @ Vr, F	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	-
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-65°C to 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

ES07B-GS08 (Direct Equivalent)

The ES07B-GS08 provides electrical and mechanical equivalence to the RSFBL RUG with identical voltage rating (100V), current rating (500mA), and package specification (DO-219AB). Both components are ROHS3 compliant and actively produced. The ES07B-GS08 demonstrates superior reverse recovery time performance (25 ns versus 150 ns) and is qualified to AEC-Q101 automotive standards. This part is suitable for direct substitution in applications where the 500mA current specification is the design requirement.

ES07B-GS18 (Higher Current Capability)

The ES07B-GS18 maintains the same voltage rating (100V) and package (DO-219AB) while providing increased current capacity (1.2A versus 500mA). This part is appropriate for applications where the design may require higher current handling or where component consolidation across multiple current ratings is beneficial. The ES07B-GS18 is ROHS3 compliant, actively produced, and qualified to AEC-Q101 automotive standards.

VS-2EFH01HM3/I (Maximum Performance)

The VS-2EFH01HM3/I is a FRED Pt® series diode offering the highest current rating (2A) and superior reverse recovery time (16 ns) among the substitute options. This part maintains the 100V voltage rating and DO-219AB package specification. The VS-2EFH01HM3/I operates across an extended temperature range (-65°C to 175°C) and is qualified to AEC-Q101 automotive standards. This part is suitable for applications requiring maximum switching speed and current capacity within the 100V classification.

Frequently Asked Questions (FAQ)

Q: Can ES07B-GS08 be used as a direct replacement for RSFBL RUG?

A: Yes. The ES07B-GS08 meets all primary substitution criteria: identical 100V voltage rating, 500mA current rating, DO-219AB package, Surface Mount mounting type, ROHS3 compliance, and -55°C to 150°C operating temperature range. Both components are classified as fast recovery diodes.

Q: What is the difference between ES07B-GS18 and ES07B-GS08?

A: The primary difference is current rating. ES07B-GS08 is rated for 500mA average rectified current, while ES07B-GS18 is rated for 1.2A. Both share identical voltage rating (100V), package (DO-219AB), and operating temperature range (-55°C to 150°C). The ES07B-GS18 is suitable for applications requiring higher current capacity.

Q: Can VS-2EFH01HM3/I replace RSFBL RUG in all applications?

A: VS-2EFH01HM3/I meets all primary substitution criteria and offers superior performance characteristics including faster reverse recovery time (16 ns versus 150 ns) and lower reverse leakage current (2 µA versus 5 µA). The extended operating temperature range (-65°C to 175°C) provides additional thermal margin. This part is suitable for applications where the RSFBL RUG is specified, with the understanding that the higher performance characteristics may provide design benefits.

Q: Are all substitute parts qualified to automotive standards?

A: ES07B-GS08 and ES07B-GS18 are qualified to AEC-Q101 automotive standards. VS-2EFH01HM3/I is also qualified to AEC-Q101 automotive standards. The RSFBL RUG does not list automotive qualification in the provided specifications.

Q: What is the significance of reverse recovery time differences?

A: Reverse recovery time (trr) indicates the speed at which a diode transitions from forward conduction to reverse blocking. The RSFBL RUG has a trr of 150 ns, while ES07B-GS08 and ES07B-GS18 have 25 ns, and VS-2EFH01HM3/I has 16 ns. Lower trr values indicate faster switching characteristics, which may reduce switching losses in high-frequency applications. All parts are classified as fast recovery diodes (≤500ns).

Q: Do all substitute parts have the same package dimensions?

A: Yes. All substitute parts use the DO-219AB package specification, which is a Surface Mount Sub SMA package. This ensures mechanical and thermal compatibility with the RSFBL RUG in PCB layouts and thermal management designs.

Q: What is the moisture sensitivity level for these diodes?

A: All parts, including RSFBL RUG and all substitutes, have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

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