HS1BL RFG Equivalent & Substitute Parts

Part Overview

The HS1BL RFG is a general-purpose rectifier diode rated for 100 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package (DO-219AB). This component is classified as Active product status and is ROHS3 compliant. Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications permit higher current ratings or improved performance characteristics within the same voltage class and package family.

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	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

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

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal 100 V
Package / Case: Must be DO-219AB (Sub SMA)
Mounting Type: Must be Surface Mount
RoHS Status: Must be ROHS3 Compliant

Secondary Compatibility Parameters:

Current - Average Rectified (Io): Equal or greater than 1 A
Voltage - Forward (Vf): Within acceptable operating range
Operating Temperature Range: Must encompass -55°C to 150°C minimum
Reverse Recovery Time (trr): Lower values indicate improved performance

Parts are grouped into two categories:

Parametric Equivalents: Parts with identical electrical specifications (100 V, 1 A, DO-219AB) but potentially different packaging formats or product status. These include ES1BL and ES1BLH from Taiwan Semiconductor Corporation.

Similar Parts: Parts with the same voltage and package but higher current ratings (ES07B-GS18 at 1.2 A, ES07B-GS08 at 500 mA, VS-2EFH01HM3/I at 2 A) or from alternative manufacturers (Vishay General Semiconductor). These provide functional alternatives when design margins permit higher current capacity.

Parameter Comparison

Parameter	HS1BL RFG	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
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
Automotive Grade	-	-	AEC-Q101	AEC-Q101	-	AEC-Q101

Engineering Selection Recommendations

Direct Parametric Equivalents (Identical Specifications):

ES1BL and ES1BLH are parametric equivalents to HS1BL RFG with identical voltage, current, and package specifications. Both parts are ROHS3 compliant and operate within the same temperature range. ES1BLH carries AEC-Q101 automotive qualification, making it suitable for automotive applications. Both ES1BL and ES1BLH are classified as Not For New Designs, indicating they are legacy products maintained for existing design support. Selection between these parts depends on packaging format availability (Tape & Reel) and automotive qualification requirements.

Higher Current Alternatives (Same Voltage and Package):

ES07B-GS18 (1.2 A) and VS-2EFH01HM3/I (2 A) provide increased current capacity within the same 100 V voltage class and DO-219AB package. Both are Active product status. ES07B-GS18 is suitable for designs requiring modest current margin above 1 A. VS-2EFH01HM3/I offers the highest current rating (2 A) and fastest reverse recovery time (16 ns), with extended operating temperature range (-65 to 175°C) and AEC-Q101 automotive qualification. These parts are appropriate when circuit design permits higher current ratings and improved performance characteristics.

Lower Current Alternative:

ES07B-GS08 (500 mA) operates at half the rated current of HS1BL RFG. This part is suitable only for applications where the circuit current requirement does not exceed 500 mA. It carries AEC-Q101 automotive qualification and Active product status.

Compliance and Regulatory Considerations:

All listed substitute parts maintain ROHS3 compliance and are classified as REACH Unaffected. Parts with AEC-Q101 qualification (ES1BLH, ES07B-GS08, VS-2EFH01HM3/I) are suitable for automotive applications. Selection of Active product status parts (ES07B-GS08, ES07B-GS18, VS-2EFH01HM3/I) is recommended for new designs to ensure long-term availability and manufacturer support.

Frequently Asked Questions (FAQ)

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

A: ES1BL and ES1BLH are parametric equivalents with identical voltage (100 V), current (1 A), and package (DO-219AB) specifications. Both are electrically compatible. The primary difference is packaging format (Tape & Reel versus bulk) and product status (Not For New Designs). ES1BLH includes AEC-Q101 automotive qualification. Verify packaging format compatibility with your assembly process before selection.

Q: What is the difference between the Vishay parts (ES07B-GS18, ES07B-GS08, VS-2EFH01HM3/I) and the Taiwan Semiconductor parts?

A: Vishay parts are from a different manufacturer but maintain the same 100 V voltage rating and DO-219AB package. ES07B-GS18 provides 1.2 A current (versus 1 A), ES07B-GS08 provides 500 mA (reduced current), and VS-2EFH01HM3/I provides 2 A (increased current). All Vishay parts are Active product status. Reverse recovery times are faster (25 ns or 16 ns) compared to HS1BL RFG (50 ns). Verify manufacturer qualification requirements and supply chain preferences before selection.

Q: Can I use VS-2EFH01HM3/I (2 A) in place of HS1BL RFG (1 A)?

A: VS-2EFH01HM3/I is electrically compatible at the 100 V voltage level and uses the same DO-219AB package. The 2 A current rating is higher than the 1 A requirement, providing design margin. This part is suitable for applications where increased current capacity is acceptable. Verify that the circuit design does not depend on the specific current rating of the original part. VS-2EFH01HM3/I includes AEC-Q101 automotive qualification and extended temperature range (-65 to 175°C).

Q: Why are ES1BL and ES1BLH marked as "Not For New Designs"?

A: Product status "Not For New Designs" indicates these are legacy parts maintained for existing design support and field replacements. Manufacturers typically apply this status when newer alternatives are available or when production is being phased out. For new circuit designs, select parts with Active product status such as ES07B-GS18, ES07B-GS08, or VS-2EFH01HM3/I.

Q: What does the DO-219AB package designation mean?

A: DO-219AB is the standardized package designation for Sub SMA (Surface Mount) diodes. All listed substitute parts use this same package, ensuring mechanical and electrical compatibility on printed circuit boards. Verify that your PCB layout and assembly equipment are qualified for DO-219AB package handling.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (ES1BL, ES1BLH, ES07B-GS08, ES07B-GS18, VS-2EFH01HM3/I) are ROHS3 compliant and REACH unaffected. This ensures compatibility with environmental and regulatory requirements for electronics manufacturing and end-of-life disposal.

Q: Which substitute part should I select for automotive applications?

A: For automotive applications, select parts with AEC-Q101 qualification: ES1BLH, ES07B-GS08, or VS-2EFH01HM3/I. ES1BLH is the direct parametric equivalent with automotive qualification. VS-2EFH01HM3/I offers higher current capacity (2 A) and extended temperature range (-65 to 175°C) if design margins permit. Verify that your automotive supply chain and qualification documentation accept the selected manufacturer and part number.

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