HS3F R7G Equivalent & Substitute Parts

Part Overview

The HS3F R7G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 300 V DC reverse voltage and 3 A average rectified current in a DO-214AB surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. The diode features fast recovery characteristics with a 50 ns reverse recovery time, suitable for standard rectification circuits operating within the specified voltage and current parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.0	V @ 3 A
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10	µA @ 300 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the HS3F R7G is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Reverse Recovery Time (trr): 50 ns
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation:

Voltage - Forward (Vf) (Max) @ If: Up to 1.1 V @ 3 A (original part specifies 1.0 V @ 3 A)
Operating Temperature - Junction: Extended range acceptable (original -55°C to 150°C; extended to -55°C to 175°C acceptable)
Capacitance @ Vr, F: Variation acceptable when not specified in original part

Parts Grouped as Direct Substitutes (3 A Rating):

ES3F-E3/57T (Vishay)
ES3F-E3/9AT (Vishay)
ES3F-M3/57T (Vishay)
ES3F-M3/9AT (Vishay)
UFS330J/TR13 (Microchip)
UFS330JE3/TR13 (Microchip)
ES3FHE3_A/H (Vishay, Automotive Grade)
ES3FHE3_A/I (Vishay, Automotive Grade)

Parts Grouped as Similar (Higher Current Rating, 5 A):

UFS530J/TR13 (Microchip)
UFS530JE3/TR13 (Microchip)

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	RoHS Status	Product Status
HS3F R7G	Taiwan Semiconductor	300	3	1.0 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Discontinued
ES3F-E3/57T	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Active
ES3F-E3/9AT	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Active
ES3F-M3/57T	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Active
ES3F-M3/9AT	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Active
UFS330J/TR13	Microchip	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 175	Non-compliant	Active
UFS330JE3/TR13	Microchip	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 175	ROHS3	Active
ES3FHE3_A/H	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Active
ES3FHE3_A/I	Vishay	300	3	1.1 @ 3A	50	10 @ 300V	DO-214AB	-55 to 150	ROHS3	Active
UFS530J/TR13	Microchip	300	5	1.2 @ 5A	50	10 @ 300V	DO-214AB	-55 to 175	Non-compliant	Active
UFS530JE3/TR13	Microchip	300	5	1.2 @ 5A	50	10 @ 300V	DO-214AB	-55 to 175	ROHS3	Active

Engineering Selection Recommendations

For Direct Replacement (3 A Rating, Identical Electrical Performance):

The Vishay ES3F series parts (ES3F-E3/57T, ES3F-E3/9AT, ES3F-M3/57T, ES3F-M3/9AT) provide direct electrical equivalence to the HS3F R7G with active product status and ROHS3 compliance. These parts are available in high inventory quantities and maintain identical voltage, current, and thermal characteristics. The forward voltage specification of 1.1 V @ 3 A represents a 0.1 V increase from the original part, which is within acceptable tolerance for general-purpose rectification applications.

The Microchip UFS330JE3/TR13 offers equivalent electrical performance with extended operating temperature range (-55°C to 175°C) and ROHS3 compliance. The UFS330J/TR13 variant is available but does not meet ROHS3 compliance requirements.

For Automotive Applications:

The Vishay ES3FHE3_A/H and ES3FHE3_A/I parts are qualified to AEC-Q101 automotive standards with identical electrical specifications to the standard ES3F series. These parts are suitable for applications requiring automotive-grade components.

For Higher Current Capability (5 A Rating):

The Microchip UFS530JE3/TR13 provides a higher current rating of 5 A at 300 V with ROHS3 compliance and extended temperature range. This part is suitable for applications where the original 3 A specification can be exceeded. The UFS530J/TR13 variant is available but lacks ROHS3 compliance.

Compliance Considerations:

All recommended direct substitutes maintain ROHS3 compliance status. Applications requiring RoHS compliance should avoid UFS330J/TR13 and UFS530J/TR13 variants, which are non-compliant.

Frequently Asked Questions (FAQ)

Q: Can ES3F-E3/57T be used as a direct replacement for HS3F R7G?

A: Yes. The ES3F-E3/57T meets all critical electrical parameters: 300 V reverse voltage, 3 A average rectified current, 50 ns reverse recovery time, and DO-214AB package. The forward voltage specification of 1.1 V @ 3 A is 0.1 V higher than the original part but remains within acceptable operating margins for general-purpose rectification circuits.

Q: What is the difference between ES3F-E3/57T and ES3F-E3/9AT?

A: Both parts are electrically identical with identical voltage, current, and thermal ratings. The difference lies in packaging configuration: /57T indicates Tape & Reel packaging, while /9AT indicates an alternative tape configuration. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Are the Microchip UFS330 parts suitable replacements?

A: Yes. UFS330JE3/TR13 is a direct electrical equivalent with ROHS3 compliance and extended operating temperature range to 175°C. UFS330J/TR13 is electrically equivalent but does not meet ROHS3 compliance. Both parts are in the DO-214AB package and maintain 300 V / 3 A specifications.

Q: Can UFS530JE3/TR13 be used instead of HS3F R7G?

A: UFS530JE3/TR13 is electrically compatible but rated for 5 A instead of 3 A. This part can be used in applications where the original 3 A specification is not a limiting factor. The higher current rating provides additional design margin. Forward voltage increases to 1.2 V @ 5 A due to the higher current specification.

Q: What does ROHS3 compliance mean for this component?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All recommended direct substitutes maintain ROHS3 compliance status matching the original HS3F R7G specification.

Q: Are automotive-grade versions available?

A: Yes. Vishay ES3FHE3_A/H and ES3FHE3_A/I are AEC-Q101 qualified automotive-grade versions with identical electrical specifications to standard ES3F parts. These are suitable for automotive applications requiring qualified components.

Q: What is the significance of the /57T and /9AT packaging designations?

A: Both designations indicate Tape & Reel packaging suitable for automated assembly. The numeric portion (57 or 9) refers to different tape specifications and reel configurations. Selection depends on compatibility with specific assembly equipment and procurement logistics.

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

A: Yes, for designs operating within the specified 300 V / 3 A parameters. All direct substitutes maintain identical package geometry (DO-214AB), mounting type (Surface Mount), and thermal characteristics. The 0.1 V increase in forward voltage for Vishay parts does not affect circuit functionality in standard rectification applications.

Q: What inventory status should be considered for procurement?

A: ES3F-E3/57T offers the highest inventory availability (15,750 pcs), followed by ES3F-E3/9AT (4,529 pcs) and UFS530JE3/TR13 (962 pcs). All recommended parts maintain active product status with ongoing manufacturer support.

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