RSFBL Equivalent & Substitute Parts Reference

Part Overview

The RSFBL is a general-purpose rectifier diode rated for 100V DC reverse voltage with 500mA average rectified current in a Surface Mount Sub SMA package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching or exceeding electrical performance parameters while maintaining compatible package configurations and thermal operating ranges.

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
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 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

Substitute parts for the RSFBL are qualified based on the following criteria:

Electrical Compatibility Requirements:

Voltage - DC Reverse (Vr) rating of 100V or greater
Fast Recovery speed classification (≤ 500ns, > 200mA)
Surface Mount package configuration (DO-219AB or Sub SMA equivalent)
Operating temperature range encompassing -55°C to 150°C minimum

Acceptable Substitution Parameters:

Current - Average Rectified (Io) equal to or exceeding 500mA
Reverse Recovery Time (trr) equal to or less than 150ns
Reverse Leakage Current equal to or less than 5µA @ 100V
Forward Voltage (Vf) characteristics within acceptable circuit tolerance

Compliance Requirements:

RoHS3 compliance mandatory
Moisture Sensitivity Level (MSL) of 1 (Unlimited) or equivalent
Active product status

Parameter Comparison

Parameter	RSFBL (Main)	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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-65 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 Substitution: This part provides direct electrical equivalence to the RSFBL with identical voltage and current ratings. The ES07B-GS08 demonstrates superior reverse recovery time performance (25ns versus 150ns) and maintains identical package and thermal specifications. This substitute is suitable for direct replacement in applications where the RSFBL is specified. The part carries AEC-Q101 automotive qualification and is available in higher inventory quantities.

ES07B-GS18 Substitution: The ES07B-GS18 exceeds the RSFBL current rating at 1.2A versus 500mA while maintaining the same 100V reverse voltage specification. This part is applicable in circuits where current headroom is beneficial or where design margins require higher current capacity. Reverse recovery time performance is superior at 25ns. Operating temperature range matches the RSFBL specification. This substitute is suitable for applications requiring higher current handling capability within the same voltage class.

VS-2EFH01HM3/I Substitution: The VS-2EFH01HM3/I provides the highest current rating at 2A and demonstrates the fastest reverse recovery time at 16ns. This part is classified as FRED Pt® series technology with AEC-Q101 automotive qualification. The operating temperature range extends to -65°C to 175°C, providing wider thermal margins. This substitute is applicable in applications requiring maximum current capacity and fastest switching performance within the 100V voltage class. The lower reverse leakage current (2µA) provides additional performance benefit.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and Active product status. Package configuration (DO-219AB) and mounting type (Surface Mount) are identical across all options.

Frequently Asked Questions (FAQ)

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

A: Yes. The ES07B-GS08 matches the RSFBL in voltage rating (100V), current rating (500mA), package type (DO-219AB), and operating temperature range (-55°C to 150°C). Both parts are RoHS3 compliant with MSL Level 1 rating. The ES07B-GS08 provides improved reverse recovery time performance (25ns versus 150ns).

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

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

Q: Is VS-2EFH01HM3/I compatible with RSFBL applications?

A: Yes, with consideration for application requirements. The VS-2EFH01HM3/I maintains the 100V voltage rating and DO-219AB package but provides 2A current capacity and superior reverse recovery time (16ns). The extended operating temperature range (-65°C to 175°C) provides additional thermal margin. This part is suitable for applications where higher current handling or faster switching is beneficial.

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

A: Yes. All substitute parts use the DO-219AB package configuration with Surface Mount mounting type, ensuring identical PCB footprint compatibility with the RSFBL.

Q: Are there compliance differences between the main part and substitutes?

A: All parts are RoHS3 compliant with MSL Level 1 rating and Active product status. ES07B-GS08 and VS-2EFH01HM3/I carry AEC-Q101 automotive qualification, providing additional qualification documentation for automotive applications.

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

A: Reverse recovery time (trr) affects switching speed and switching losses. The RSFBL has trr of 150ns, while substitutes range from 16ns to 25ns. Faster recovery times reduce switching losses and enable higher frequency operation. Selection depends on circuit switching frequency requirements and thermal management considerations.

Q: Can a higher current-rated part be used in a lower current application?

A: Yes. Higher current-rated parts (ES07B-GS18 at 1.2A or VS-2EFH01HM3/I at 2A) can be used in applications specified for 500mA operation. The circuit will operate within the part's safe operating area. Verify that package dimensions and thermal characteristics are acceptable for the application.

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