HS1BL RHG Equivalent & Substitute Parts

Part Overview

The HS1BL RHG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package (DO-219AB). The device is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design specifications permit selection from qualified equivalent devices. The following parts maintain electrical compatibility within the specified parameter ranges while offering different availability, product status, or performance characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	mV
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Package / Case	DO-219AB	Sub SMA
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the HS1BL RHG is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Current - Average Rectified (Io): Must equal or exceed 1 A
Package / Case: Must be DO-219AB (Sub SMA)
Mounting Type: Must be Surface Mount
Operating Temperature Range: Must encompass -55°C to 150°C minimum
RoHS Status: Must be ROHS3 Compliant

Secondary Compatibility Factors:

Voltage - Forward (Vf): Acceptable within 950 mV @ 1 A specification
Reverse Recovery Time (trr): Lower values indicate improved performance
Current - Reverse Leakage: Lower values indicate improved performance
Moisture Sensitivity Level: MSL 1 (Unlimited) preferred for manufacturing compatibility

The substitute parts listed below are grouped into two categories: Parametric Equivalents (identical electrical ratings) and Similar parts (higher current ratings or enhanced performance characteristics within the same package).

Parameter Comparison

Parameter	HS1BL RHG	ES1BL	ES1BLH	ES07B-GS08	ES07B-GS18	VS-2EFH01HM3/I
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Vishay	Vishay	Vishay
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	1 A	1 A	1 A	500 mA	1.2 A	2 A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	950 mV @ 1 A	950 mV @ 1 A	980 mV @ 1 A	980 mV @ 1 A	950 mV @ 2 A
Reverse Recovery Time (trr)	50 ns	35 ns	35 ns	25 ns	25 ns	16 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V	2 µA @ 100 V
Capacitance @ Vr, F	20 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	- (Not specified)
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	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 150°C	-55 to 150°C	-65 to 175°C
Product Status	Active	Not For New Designs	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Standard	Standard	Automotive	Automotive	Standard	Automotive
Qualification	-	-	AEC-Q101	AEC-Q101	-	AEC-Q101

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

ES1BL and ES1BLH are parametric equivalents to the HS1BL RHG, maintaining identical voltage and current ratings (100 V, 1 A) with the same DO-219AB package. Both parts are manufactured by Taiwan Semiconductor Corporation and are RoHS3 compliant. However, both are classified as "Not For New Designs," indicating they are in mature or declining production phases. ES1BL is available in standard grade, while ES1BLH carries automotive grade qualification (AEC-Q101) and is suitable for automotive applications. Both offer improved reverse recovery time (35 ns versus 50 ns) and reduced capacitance (10 pF versus 20 pF) compared to the HS1BL RHG.

Similar Parts (Higher Performance or Current Rating):

ES07B-GS08 (Vishay) is rated for 500 mA average rectified current, which is below the 1 A requirement of the HS1BL RHG and is not suitable as a direct substitute. This part is included in the substitute list but does not meet the minimum current specification.

ES07B-GS18 (Vishay) is rated for 1.2 A average rectified current, exceeding the 1 A requirement of the HS1BL RHG. This part maintains the 100 V reverse voltage rating and DO-219AB package. It is Active product status and RoHS3 compliant. The part offers improved reverse recovery time (25 ns) and reduced capacitance (4 pF) compared to the HS1BL RHG. Forward voltage is slightly higher at 980 mV versus 950 mV.

VS-2EFH01HM3/I (Vishay FRED Pt® series) is rated for 2 A average rectified current with 100 V reverse voltage in the DO-219AB package. This part is Active product status, RoHS3 compliant, and carries automotive grade qualification (AEC-Q101). It offers the lowest reverse recovery time (16 ns) and reverse leakage current (2 µA) among all listed substitutes. Operating temperature range extends to -65°C to 175°C, providing enhanced thermal performance. Forward voltage is 950 mV @ 2 A.

Selection Guidance:

For new designs, select from Active product status parts: HS1BL RHG (primary), ES07B-GS18, or VS-2EFH01HM3/I. For automotive applications requiring AEC-Q101 qualification, select ES1BLH, ES07B-GS08, or VS-2EFH01HM3/I. For applications requiring higher current capacity with improved performance characteristics, VS-2EFH01HM3/I is the optimal choice. For direct electrical equivalence with Active status, ES07B-GS18 provides the closest match.

Frequently Asked Questions (FAQ)

Q: Can ES1BL or ES1BLH be used as direct replacements for HS1BL RHG?

A: Yes, ES1BL and ES1BLH are parametric equivalents with identical voltage (100 V) and current (1 A) ratings in the same DO-219AB package. Both are manufactured by Taiwan Semiconductor Corporation and are RoHS3 compliant. However, both are classified as "Not For New Designs," indicating limited future availability. ES1BLH includes automotive grade qualification (AEC-Q101), making it suitable for automotive applications where HS1BL RHG may not be qualified.

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

A: ES07B-GS08 is rated for 500 mA average rectified current, while ES07B-GS18 is rated for 1.2 A. Both are manufactured by Vishay, are Active product status, and are RoHS3 compliant. ES07B-GS08 does not meet the 1 A minimum requirement of the HS1BL RHG and is not suitable as a substitute. ES07B-GS18 exceeds the 1 A requirement and is a valid substitute with improved performance characteristics (25 ns reverse recovery time versus 50 ns).

Q: Is VS-2EFH01HM3/I suitable for applications designed for HS1BL RHG?

A: Yes, VS-2EFH01HM3/I is suitable for applications designed for HS1BL RHG. It maintains the 100 V reverse voltage rating and DO-219AB package. The 2 A current rating exceeds the 1 A requirement, providing design margin. The part is Active product status, RoHS3 compliant, and carries automotive grade qualification (AEC-Q101). Performance characteristics are superior, with reverse recovery time of 16 ns (versus 50 ns) and reverse leakage current of 2 µA (versus 5 µA).

Q: Why do some substitute parts have different reverse recovery times?

A: Reverse recovery time (trr) is a performance characteristic that varies by manufacturer design and technology. Lower reverse recovery times indicate faster switching behavior and reduced switching losses. ES1BL and ES1BLH offer 35 ns, ES07B-GS18 offers 25 ns, and VS-2EFH01HM3/I offers 16 ns. All values are within the "Fast Recovery ≤ 500ns, > 200mA" specification. Selection depends on application switching frequency requirements and thermal management considerations.

Q: What does "Not For New Designs" mean for ES1BL and ES1BLH?

A: "Not For New Designs" indicates that the manufacturer is not recommending these parts for new product development. These parts are typically in mature production phases with limited future availability. While they remain functionally equivalent and suitable for replacement in existing designs, new designs should prioritize Active product status parts such as HS1BL RHG, ES07B-GS18, or VS-2EFH01HM3/I.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are RoHS3 compliant. The HS1BL RHG is also RoHS3 compliant. All parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating compatibility with standard manufacturing processes.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive electronics qualification standard. Parts carrying this qualification (ES1BLH, ES07B-GS08, VS-2EFH01HM3/I) are approved for automotive applications and have undergone rigorous testing for reliability and performance in automotive environments. If the application is automotive, selection of AEC-Q101 qualified parts is required.

Q: Can I use a higher current rated diode in place of HS1BL RHG?

A: Yes, a higher current rated diode can be used in place of HS1BL RHG provided all other electrical parameters are compatible. ES07B-GS18 (1.2 A) and VS-2EFH01HM3/I (2 A) both exceed the 1 A requirement and maintain the 100 V reverse voltage rating and DO-219AB package. Higher current ratings provide design margin and typically offer improved performance characteristics. Verify that forward voltage drop and reverse leakage current are acceptable for the application.

Q: What packaging formats are available for these substitute parts?

A: All listed parts use the DO-219AB (Sub SMA) surface mount package. Packaging formats vary by supplier: HS1BL RHG is supplied in standard packaging, ES1BL and ES1BLH are supplied in Tape & Reel (TR), ES07B-GS08 is supplied in Cut Tape (CT) & Digi-Reel®, ES07B-GS18 is supplied in Tape & Reel (TR), and VS-2EFH01HM3/I is supplied in Tape & Reel (TR). Verify packaging format compatibility with assembly equipment before final selection.

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