ES2FHR5G Equivalent & Substitute Parts

Part Overview

The ES2FHR5G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 300 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This part is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement requirements. The device features fast recovery characteristics with a 35 ns reverse recovery time and automotive-grade qualification per AEC-Q101 standard.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 2 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10 @ 300 V	µA
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the ES2FHR5G is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Technology: Standard (Fast Recovery)

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Operating Temperature Range: -55°C to 150°C minimum
Automotive Grade and AEC-Q101 qualification (where applicable)

Substitute parts are classified into two categories:

Parametric Equivalents: Parts with identical electrical specifications and full parameter alignment, including reverse recovery time, forward voltage, and reverse leakage current characteristics.

Similar Parts: Parts meeting core electrical requirements (voltage, current, package) with minor variations in secondary parameters such as forward voltage, reverse leakage current measurement conditions, or reverse recovery time, while maintaining automotive qualification and compliance standards.

Parameter Comparison

Parameter	ES2FHR5G (Main)	ES2F (Diotec)	ES2FH (TSC)	ES2FHE3_A/H (Vishay)	ES2FHE3_A/I (Vishay)
Manufacturer	Taiwan Semiconductor Corporation	Diotec Semiconductor	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	300 V	300 V	300 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A	1.3 V @ 2 A	1.3 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A
Reverse Recovery Time (trr)	35 ns	25 ns	35 ns	35 ns	35 ns
Current - Reverse Leakage @ Vr	10 µA @ 300 V	5 µA @ 300 V	10 µA @ 300 V	10 µA @ 50 V	10 µA @ 50 V
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Operating Temperature - Junction	-55 to 150°C	-50 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
Grade	Automotive	—	Automotive	Automotive	Automotive
Qualification	AEC-Q101	—	AEC-Q101	AEC-Q101	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active

Engineering Selection Recommendations

ES2FH (Taiwan Semiconductor Corporation) is the primary parametric equivalent for ES2FHR5G replacement. This part maintains identical electrical specifications, automotive qualification, AEC-Q101 certification, and operating temperature range. The ES2FH is currently active in production with substantial inventory availability (6,711 pcs), ensuring supply continuity. Both parts share the same base product number (ES2F) and are manufactured by the same supplier.

ES2F (Diotec Semiconductor) serves as an alternative parametric equivalent with full compliance to ROHS3 standards. This part demonstrates superior reverse recovery time performance (25 ns versus 35 ns) and lower reverse leakage current (5 µA @ 300 V versus 10 µA @ 300 V), resulting in improved switching efficiency. However, the ES2F lacks automotive grade designation and AEC-Q101 qualification. This part is suitable for non-automotive applications requiring the same voltage and current ratings. Operating temperature range is -50°C to 150°C, which is acceptable for most industrial applications but does not extend to the full -55°C minimum of the original part.

ES2FHE3_A/H and ES2FHE3_A/I (Vishay General Semiconductor - Diodes Division) are similar parts meeting core electrical requirements with automotive qualification and AEC-Q101 certification. Both Vishay variants feature improved forward voltage characteristics (1.1 V @ 2 A versus 1.3 V @ 2 A), reducing power dissipation in rectification circuits. Reverse leakage current is specified at 50 V rather than 300 V, and capacitance is lower (15 pF versus 20 pF). These parts maintain full operating temperature range (-55°C to 150°C) and ROHS3 compliance. The ES2FHE3_A/H and ES2FHE3_A/I variants are functionally interchangeable for this application.

For applications requiring strict parameter matching and automotive certification, ES2FH is the recommended direct replacement. For non-automotive applications where improved efficiency is prioritized, ES2F provides superior performance. For automotive applications where forward voltage reduction is beneficial, Vishay ES2FHE3_A/H or ES2FHE3_A/I variants are suitable alternatives.

Frequently Asked Questions (FAQ)

Q: Can ES2F be used as a direct replacement for ES2FHR5G in automotive applications?

A: No. While ES2F meets the electrical voltage and current specifications, it lacks automotive grade designation and AEC-Q101 qualification required for automotive circuit applications. ES2F is suitable only for industrial and consumer applications.

Q: What is the difference between ES2FH and ES2FHR5G?

A: ES2FH is the active production equivalent of the discontinued ES2FHR5G. Both parts share identical electrical specifications, automotive qualification, AEC-Q101 certification, and operating temperature range. The primary difference is product status: ES2FHR5G is discontinued while ES2FH is currently in active production with full inventory availability.

Q: Are the Vishay ES2FHE3_A/H and ES2FHE3_A/I parts interchangeable?

A: Yes. Both Vishay variants are functionally interchangeable for this application. They share identical electrical specifications, automotive qualification, AEC-Q101 certification, and operating temperature range. Selection between these two variants depends on supplier availability and procurement requirements.

Q: What is the significance of the lower forward voltage in Vishay parts (1.1 V versus 1.3 V)?

A: Lower forward voltage reduces power dissipation during rectification. In circuits where the diode conducts significant current, this results in lower heat generation and improved efficiency. The 0.2 V difference translates to 0.4 W less power dissipation at 2 A continuous current.

Q: Can I use ES2F in a circuit originally designed for ES2FHR5G if the application is not automotive?

A: Yes, provided the application does not require automotive qualification or AEC-Q101 certification. ES2F meets all electrical specifications and offers superior reverse recovery time (25 ns versus 35 ns) and lower reverse leakage current. The operating temperature range (-50°C to 150°C) is acceptable for most industrial applications, though it does not extend to -55°C minimum.

Q: Are all substitute parts available in the same DO-214AA (SMB) package?

A: Yes. All substitute parts listed are available in DO-214AA (SMB) surface mount package, ensuring mechanical and thermal compatibility with the original ES2FHR5G design without PCB layout modifications.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is the automotive electronics council qualification standard for discrete semiconductors. It certifies that the component meets stringent reliability, quality, and performance requirements for automotive applications, including thermal cycling, vibration, and long-term stability testing.

Q: Why does ES2F show lower reverse leakage current (5 µA @ 300 V) compared to other parts?

A: Lower reverse leakage current indicates superior reverse bias performance and reduced minority carrier generation. This characteristic improves circuit efficiency and reduces standby power consumption. The ES2F demonstrates better leakage characteristics than the original ES2FHR5G specification.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes. All substitute parts meet the same electrical specifications and package requirements. However, for consistency in manufacturing and quality control, using a single part number across a production run is recommended.

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