HS1GFS Equivalent & Substitute Parts

Part Overview

The HS1GFS 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 surface mount SOD-128 package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or specific application requirements within the allowed parameter ranges.

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 @ 1 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	SOD-128	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the HS1GFS is permissible with parts that maintain the following core electrical and mechanical parameters:

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)
Package / Case: SOD-128
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
RoHS Status: ROHS3 Compliant

Variations in secondary parameters such as Reverse Recovery Time (trr), Reverse Leakage Current, and Capacitance do not preclude substitution when the above core parameters are met. Packaging format (Tape & Reel versus Cut Tape) and automotive qualification (AEC-Q101) represent additional options for specific application contexts.

Parameter Comparison

Parameter	HS1GFS	ES1GFS	RS1GFS	RS1GFS MWG	RS1GFSH
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	1 A
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	1.3 V @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns	35 ns	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	1 µA @ 400 V	1 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V
Capacitance @ Vr, F	17 pF @ 4V, 1MHz	16 pF @ 4V, 1MHz	7 pF @ 4V, 1MHz	7 pF @ 4V, 1MHz	7 pF @ 4V, 1MHz
Package / Case	SOD-128	SOD-128	SOD-128	SOD-128	SOD-128
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Product Status	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Grade	—	—	—	—	Automotive
Qualification	—	—	—	—	AEC-Q101

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity. Selection between HS1GFS, ES1GFS, RS1GFS, RS1GFS MWG, and RS1GFSH is determined by application-specific requirements and inventory availability.

HS1GFS and ES1GFS exhibit lower reverse leakage current (1 µA @ 400 V) and represent optimal selections for applications where leakage minimization is critical. ES1GFS provides a faster reverse recovery time (35 ns) compared to HS1GFS (50 ns).

RS1GFS, RS1GFS MWG, and RS1GFSH share identical electrical characteristics with higher reverse leakage current (5 µA @ 400 V) and longer reverse recovery time (150 ns). RS1GFSH includes automotive-grade qualification (AEC-Q101), suitable for automotive applications. RS1GFS MWG is supplied in Cut Tape packaging, whereas RS1GFS and RS1GFSH are supplied in Tape & Reel format.

Packaging format selection (Tape & Reel versus Cut Tape) depends on assembly process requirements and volume considerations. All parts maintain identical SOD-128 package geometry and surface mount mounting type.

Frequently Asked Questions (FAQ)

Q: Can HS1GFS be directly replaced with ES1GFS?

A: Yes. Both parts share identical core electrical parameters: 400 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage at 1 A, and SOD-128 surface mount packaging. ES1GFS provides improved reverse recovery time (35 ns versus 50 ns) and equivalent reverse leakage current (1 µA @ 400 V).

Q: What is the difference between RS1GFS and RS1GFS MWG?

A: RS1GFS and RS1GFS MWG are electrically identical. The primary difference is packaging format: RS1GFS is supplied in Tape & Reel (TR) format, while RS1GFS MWG is supplied in Cut Tape (CT) format. Both maintain identical electrical performance and SOD-128 package geometry.

Q: Is RS1GFSH suitable for automotive applications?

A: Yes. RS1GFSH carries automotive-grade qualification (AEC-Q101) and is designated as Automotive grade. It maintains identical electrical parameters to RS1GFS and RS1GFS MWG while meeting automotive industry standards.

Q: What are the key differences in reverse recovery time among substitute parts?

A: HS1GFS exhibits 50 ns reverse recovery time, ES1GFS exhibits 35 ns, and RS1GFS, RS1GFS MWG, and RS1GFSH all exhibit 150 ns. Selection depends on application switching frequency requirements and circuit design specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts—HS1GFS, ES1GFS, RS1GFS, RS1GFS MWG, and RS1GFSH—are ROHS3 compliant and REACH unaffected, ensuring regulatory compliance across all markets.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts share identical SOD-128 package geometry and surface mount mounting type, enabling direct PCB footprint compatibility without design modification.

Q: What is the moisture sensitivity level for all parts?

A: All parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

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