ES1BL RHG Equivalent & Substitute Parts

Part Overview

The ES1BL 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). This component is classified as Active product status and is RoHS3 compliant with AEC-Q101 automotive qualification available in variant ES1BLH.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design specifications permit operation with equivalent electrical characteristics. The ES1BL RHG has been superseded by variants with different packaging configurations and by higher-current-rated alternatives from both Taiwan Semiconductor Corporation and Vishay General Semiconductor.

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
Reverse Recovery Time (trr)	35	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	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES1BL RHG is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V
Package / Case: DO-219AB (Sub SMA)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Current - Average Rectified (Io): Equal or greater than 1 A
Voltage - Forward (Vf) (Max) @ If: Within ±50 mV of 950 mV
Reverse Recovery Time (trr): Equal or less than 35 ns
Current - Reverse Leakage @ Vr: Equal or less than 5 µA @ 100 V
Operating Temperature - Junction: Equal or greater range than -55°C to 150°C
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) acceptable for surface mount assembly

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts with identical electrical ratings (100 V, 1 A) from Taiwan Semiconductor Corporation, including ES1BL and ES1BLH. These represent direct replacements with variations in packaging format and automotive qualification status.

Similar Parts: Parts with higher current ratings (500 mA to 2 A) or improved performance characteristics from Vishay General Semiconductor, including ES07B-GS08, ES07B-GS18, and VS-2EFH01HM3/I. These are suitable when design specifications permit operation at higher current capacity or improved reverse recovery characteristics.

Parameter Comparison

Parameter	ES1BL 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)	35 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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Qualification	—	—	AEC-Q101	AEC-Q101	—	AEC-Q101
Product Status	Active	Not For New Designs	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specifications):

ES1BL (Tape & Reel packaging) is a parametric equivalent to ES1BL RHG with identical electrical characteristics. However, this part is marked as "Not For New Designs," indicating it is in mature or end-of-life status. Selection of ES1BL is appropriate only for legacy system maintenance or when existing design documentation specifies this part number.

ES1BLH is a parametric equivalent with AEC-Q101 automotive qualification. This part is also marked as "Not For New Designs" but provides automotive-grade reliability assurance. Selection is appropriate for automotive applications requiring AEC-Q101 compliance and when current availability permits.

For New Designs with Enhanced Performance:

ES07B-GS18 (Vishay, 1.2 A, Active status) is suitable for new designs requiring 100 V rectification with slightly higher current capacity. This part offers improved reverse recovery time (25 ns versus 35 ns) and is in Active product status, indicating long-term availability support.

VS-2EFH01HM3/I (Vishay FRED Pt® series, 2 A, Active status) is suitable for applications requiring higher current capacity or superior reverse recovery performance (16 ns). This part includes AEC-Q101 automotive qualification and extended operating temperature range (-65°C to 175°C), providing design margin for demanding applications.

ES07B-GS08 (Vishay, 500 mA, Active status) is suitable only when design specifications permit operation at reduced current capacity. This part is not recommended as a substitute for the 1 A ES1BL RHG unless circuit analysis confirms that 500 mA average rectified current is sufficient.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard surface mount assembly processes. Automotive applications requiring AEC-Q101 qualification should select ES1BLH or VS-2EFH01HM3/I.

Frequently Asked Questions (FAQ)

Q: Can ES07B-GS08 replace ES1BL RHG in all applications?

A: No. ES07B-GS08 is rated for 500 mA average rectified current, while ES1BL RHG is rated for 1 A. Substitution is only valid when circuit analysis confirms that the application requires no more than 500 mA average rectified current. Exceeding the rated current will result in component failure.

Q: What is the difference between ES1BL and ES1BLH?

A: Both parts are parametric equivalents with identical electrical specifications (100 V, 1 A, 35 ns reverse recovery time). ES1BLH includes AEC-Q101 automotive qualification and is suitable for automotive applications. Both parts are marked "Not For New Designs," indicating mature product status.

Q: Is VS-2EFH01HM3/I a direct replacement for ES1BL RHG?

A: VS-2EFH01HM3/I is a functional substitute with superior performance characteristics. It provides 2 A current capacity (versus 1 A), faster reverse recovery time (16 ns versus 35 ns), and extended operating temperature range (-65°C to 175°C versus -55°C to 150°C). It is suitable for applications where the ES1BL RHG is specified, provided that the circuit design accommodates the higher current rating and improved performance characteristics.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts listed are available in DO-219AB (Sub SMA) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts. Packaging formats vary (Tape & Reel, Cut Tape, Digi-Reel®) but do not affect component performance or PCB assembly compatibility.

Q: Which substitute part should be selected for new automotive designs?

A: VS-2EFH01HM3/I is the recommended selection for new automotive designs. This part is in Active product status, includes AEC-Q101 automotive qualification, offers superior reverse recovery performance (16 ns), and provides extended operating temperature range. ES1BLH is an alternative if the 1 A current rating and 35 ns reverse recovery time are specifically required, but this part is marked "Not For New Designs."

Q: What is the significance of "Not For New Designs" status?

A: "Not For New Designs" indicates that the manufacturer is not actively promoting the part for new circuit designs and may have limited long-term availability. Parts with this status should be used only for legacy system maintenance or when existing design documentation specifically requires the part number. For new designs, selection of parts with "Active" product status is recommended to ensure long-term supply chain stability.

Q: Can packaging format (Tape & Reel versus Cut Tape) affect substitution?

A: Packaging format does not affect electrical performance or PCB assembly compatibility. Both Tape & Reel and Cut Tape formats are suitable for automated surface mount assembly. Selection between packaging formats is determined by manufacturing process requirements and inventory management practices, not by component performance or substitution validity.

Q: What parameters must remain constant for valid substitution?

A: The following parameters must remain constant: Voltage - DC Reverse (Vr) at 100 V, Package / Case as DO-219AB, Mounting Type as Surface Mount, RoHS Status as ROHS3 Compliant, and Moisture Sensitivity Level as 1 (Unlimited). Current rating, reverse recovery time, and forward voltage may vary within specified allowable ranges provided that circuit analysis confirms compatibility.

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