HS1GL RFG Equivalent & Substitute Parts

Part Overview

The HS1GL RFG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 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 unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions call for equivalent electrical performance from different manufacturers or product lines.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the HS1GL RFG is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-219AB
Mounting Type: Surface Mount
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature Range: -55°C to 150°C
RoHS3 Compliance

Parametric Equivalent Parts (ES1GL, ES1GL RVG, HS1GL RVG) meet all primary substitution criteria with identical voltage, current, and package specifications. These parts are interchangeable at the functional level and differ only in packaging format (Cut Tape, Tape & Reel) or minor secondary parameters such as reverse recovery time (35 ns vs. 50 ns) and junction capacitance.

Similar Parts (S07G-GS08, S07G-GS18) share the same 400 V voltage rating and DO-219AB package but have reduced current rating (700 mA vs. 1 A) and different speed classification (Standard Recovery >500ns). These parts are suitable only for applications with lower current requirements and are not direct functional equivalents.

Parameter Comparison

Parameter	HS1GL RFG	ES1GL	ES1GL RVG	HS1GL RVG	S07G-GS08	S07G-GS18
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Taiwan Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	700 mA	700 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Standard Recovery >500ns, > 200mA	Standard Recovery >500ns, > 200mA
Reverse Recovery Time (trr)	50 ns	35 ns	35 ns	50 ns	1.8 µs	1.8 µs
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	10 µA @ 400 V	10 µA @ 200 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	-55 to 150 °C
Product Status	Active	Not For New Designs	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalent Selection (Preferred):

ES1GL RVG and HS1GL RVG are the primary recommended substitutes for HS1GL RFG. Both parts maintain Active product status, meet all electrical specifications for 400 V / 1 A operation, and are available in Tape & Reel packaging format. ES1GL RVG offers improved reverse recovery time (35 ns vs. 50 ns), which may provide performance benefits in high-frequency switching applications. HS1GL RVG maintains identical reverse recovery time to the original part.

ES1GL is available in higher inventory volume (95,300 pcs) but carries Not For New Designs product status, making it suitable only for legacy system maintenance or existing production lines.

Alternative Manufacturer Selection:

S07G-GS08 and S07G-GS18 from Vishay General Semiconductor are functionally similar but not direct equivalents due to reduced current rating (700 mA vs. 1 A) and standard recovery speed classification. These parts are suitable only for applications with maximum current requirements of 700 mA or less. Both parts carry AEC-Q101 automotive qualification and are available in high inventory volume.

Compliance Verification:

All substitute parts maintain RoHS3 compliance, REACH Unaffected status, and unlimited moisture sensitivity level (MSL 1). All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Frequently Asked Questions (FAQ)

Q: Can ES1GL be used as a direct replacement for HS1GL RFG in new designs?

A: ES1GL is classified as Not For New Designs. For new design implementations, use ES1GL RVG or HS1GL RVG, both of which carry Active product status.

Q: What is the difference between HS1GL RVG and ES1GL RVG?

A: Both parts meet identical electrical specifications for 400 V / 1 A operation and share the same DO-219AB package. The primary difference is manufacturer base product line (HS1G vs. ES1G). HS1GL RVG maintains 50 ns reverse recovery time matching the original HS1GL RFG, while ES1GL RVG offers faster 35 ns recovery time. Selection depends on application switching frequency requirements.

Q: Why do S07G-GS08 and S07G-GS18 have lower current ratings?

A: S07G-GS08 and S07G-GS18 are rated for 700 mA average rectified current, compared to 1 A for HS1GL RFG. These parts are not suitable for applications requiring full 1 A current capacity and should be used only in designs with maximum current requirements of 700 mA or less.

Q: What packaging formats are available for equivalent parts?

A: HS1GL RFG is supplied in standard packaging format. Equivalent parts are available in multiple packaging options: ES1GL (Cut Tape & Digi-Reel), ES1GL RVG (Tape & Reel), and HS1GL RVG (Tape & Reel). Packaging selection depends on manufacturing process requirements and volume specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (ES1GL, ES1GL RVG, HS1GL RVG, S07G-GS08, S07G-GS18) are RoHS3 compliant with REACH Unaffected status and unlimited moisture sensitivity level (MSL 1).

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

A: Reverse recovery time (trr) affects switching speed and efficiency in high-frequency applications. HS1GL RFG and HS1GL RVG specify 50 ns trr, while ES1GL and ES1GL RVG specify 35 ns trr. Faster recovery time reduces switching losses but may not be critical for low-frequency applications. S07G-GS08 and S07G-GS18 specify 1.8 µs trr, indicating standard recovery classification unsuitable for fast-switching circuits.

Q: Can I substitute a Vishay part for a Taiwan Semiconductor part?

A: S07G-GS08 and S07G-GS18 from Vishay are not direct functional equivalents due to reduced current rating (700 mA vs. 1 A) and different speed classification. Substitution is valid only for applications with maximum current requirements below 700 mA. For full 1 A capacity, use Taiwan Semiconductor parametric equivalents (ES1GL RVG or HS1GL RVG).

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