ES3FHM6G Equivalent & Substitute Parts

Part Overview

The ES3FHM6G 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 surface mount DO-214AB (SMC) package. This component is classified as a fast recovery diode with automotive-grade qualification (AEC-Q101) and ROHS3 compliance.

The ES3FHM6G has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 3 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10 @ 300 V	µA
Capacitance @ Vr, F	30 @ 4V, 1MHz	pF
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-214AB (SMC)	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitute parts for the ES3FHM6G are identified based on electrical and mechanical parameter equivalence within the rectifier diode category. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 3 A
Reverse Recovery Time (trr): 35 ns
Current - Reverse Leakage @ Vr: 10 µA @ 300 V
Capacitance @ Vr, F: 30 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 150°C

Mechanical Equivalence Criteria:

Package / Case: DO-214AB (SMC)
Mounting Type: Surface Mount
Grade: Automotive
Qualification: AEC-Q101

Parts meeting all electrical and mechanical parameters are classified as direct substitutes. Packaging format (Tape & Reel versus bulk) does not affect functional equivalence.

Parameter Comparison

Parameter	ES3FHM6G (Main Part)	ES3FH (Substitute)	Match
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	✓
Category	Diodes, Rectifiers	Diodes, Rectifiers	✓
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	✓
Current - Average Rectified (Io)	3 A	3 A	✓
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	1.3 V @ 3 A	✓
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	✓
Reverse Recovery Time (trr)	35 ns	35 ns	✓
Current - Reverse Leakage @ Vr	10 µA @ 300 V	10 µA @ 300 V	✓
Capacitance @ Vr, F	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	✓
Package / Case	DO-214AB (SMC)	DO-214AB (SMC)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	✓
Grade	Automotive	Automotive	✓
Qualification	AEC-Q101	AEC-Q101	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Discontinued at DiGi Electronics	Active	—
Packaging Format	Bulk	Tape & Reel (TR)	Functionally Equivalent

Engineering Selection Recommendations

The ES3FH is a direct functional equivalent to the ES3FHM6G. Both parts share identical electrical specifications, mechanical package configuration, automotive qualification, and compliance certifications.

Key Selection Factors:

The ES3FH differs from the ES3FHM6G only in product status and packaging format. The ES3FHM6G is discontinued, while the ES3FH maintains active product status with higher inventory availability (3935 pieces in stock versus 967 pieces for the main part). The ES3FH is supplied in Tape & Reel format, which is standard for high-volume production environments and automated assembly processes.

For applications requiring the ES3FHM6G specification, the ES3FH provides equivalent electrical performance, thermal characteristics, and reliability certification. The transition from bulk to Tape & Reel packaging does not affect component functionality or circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the ES3FH be used as a direct replacement for the ES3FHM6G?

A: Yes. The ES3FH meets all electrical and mechanical specifications of the ES3FHM6G, including voltage rating (300 V), current rating (3 A), forward voltage drop (1.3 V @ 3 A), reverse recovery time (35 ns), and operating temperature range (-55°C to 150°C). Both parts carry automotive-grade qualification (AEC-Q101) and ROHS3 compliance.

Q: What is the difference between the ES3FHM6G and ES3FH?

A: The primary differences are product status and packaging format. The ES3FHM6G is discontinued and supplied in bulk packaging. The ES3FH is an active product supplied in Tape & Reel format. Electrical and mechanical specifications are identical.

Q: Is the Tape & Reel packaging compatible with my assembly process?

A: Tape & Reel packaging is the standard format for automated surface mount assembly. If your production process uses automated pick-and-place equipment, Tape & Reel packaging is compatible. If your process requires bulk or tube packaging, packaging format conversion may be necessary.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both parts have identical operating temperature ranges (-55°C to 150°C), reverse recovery times (35 ns), and leakage current specifications (10 µA @ 300 V). Reliability and thermal performance are equivalent.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the ES3FHM6G and ES3FH carry AEC-Q101 automotive qualification and are suitable for automotive applications.

Q: What is the inventory status of these parts?

A: The ES3FHM6G has 967 pieces in stock but is discontinued. The ES3FH has 3935 pieces in stock and is an active product, providing better long-term supply availability.

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