ES3FHR7G Equivalent & Substitute Parts

Part Overview

The ES3FHR7G 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 discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing production and maintenance applications. The part carries automotive-grade qualification (AEC-Q101) and is ROHS3 compliant, making it suitable for automotive and industrial applications requiring reliable rectification performance.

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)	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the ES3FHR7G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ES3FH maintains identical specifications for voltage rating (300 V), current rating (3 A), forward voltage drop (1.3 V @ 3 A), reverse recovery time (35 ns), reverse leakage current (10 µA @ 300 V), junction capacitance (30 pF @ 4V, 1MHz), and operating temperature range (-55°C to 150°C). Both parts share the same package designation (DO-214AB/SMC), automotive grade classification, and AEC-Q101 qualification. The primary distinction between these parts is product status and packaging format: ES3FHR7G is discontinued, while ES3FH remains active in production with Tape & Reel packaging.

Parameter Comparison

Parameter	ES3FHR7G (Main Part)	ES3FH (Substitute)	Match Status
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Identical
Category	Diodes, Rectifiers	Diodes, Rectifiers	Identical
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	Identical
Current - Average Rectified (Io)	3 A	3 A	Identical
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	1.3 V @ 3 A	Identical
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Identical
Reverse Recovery Time (trr)	35 ns	35 ns	Identical
Current - Reverse Leakage @ Vr	10 µA @ 300 V	10 µA @ 300 V	Identical
Capacitance @ Vr, F	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	Identical
Grade	Automotive	Automotive	Identical
Qualification	AEC-Q101	AEC-Q101	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	DO-214AB (SMC)	DO-214AB (SMC)	Identical
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Product Status	Discontinued at DiGi Electronics	Active	Different
Packaging Format	Not specified	Tape & Reel (TR)	Different

Engineering Selection Recommendations

The ES3FH serves as a direct parametric equivalent to the discontinued ES3FHR7G. Both parts are manufactured by Taiwan Semiconductor Corporation and carry identical electrical specifications, thermal ratings, and automotive-grade certifications. The ES3FH is currently in active production status, ensuring supply chain availability for new designs and replacement applications.

Selection of ES3FH over ES3FHR7G is justified by product lifecycle considerations: ES3FHR7G is discontinued, while ES3FH maintains active status with established supply channels. Both parts satisfy identical compliance requirements, including ROHS3 compliance, REACH unaffected status, and AEC-Q101 automotive qualification. The packaging difference (Tape & Reel for ES3FH versus unspecified for ES3FHR7G) does not affect electrical or thermal performance and is a standard format for high-volume surface mount assembly operations.

Frequently Asked Questions (FAQ)

Q: Can ES3FH be used as a direct replacement for ES3FHR7G in existing designs?

A: Yes. ES3FH is electrically and mechanically equivalent to ES3FHR7G across all specified parameters, 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 use the DO-214AB (SMC) package and carry identical automotive-grade qualification (AEC-Q101).

Q: What is the primary reason for substituting ES3FHR7G with ES3FH?

A: ES3FHR7G is discontinued at DiGi Electronics, making ES3FH the active production equivalent. ES3FH maintains all electrical and mechanical specifications of the discontinued part while ensuring ongoing supply availability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both ES3FHR7G and ES3FH carry identical compliance certifications: ROHS3 compliant, REACH unaffected, and AEC-Q101 automotive qualification. Moisture sensitivity level (MSL 1 - Unlimited) is also identical.

Q: Does the Tape & Reel packaging of ES3FH affect compatibility?

A: No. Tape & Reel is a standard packaging format for surface mount components and does not affect electrical performance, thermal characteristics, or PCB assembly compatibility. The DO-214AB (SMC) package footprint remains identical.

Q: Are the thermal and electrical performance characteristics identical?

A: Yes. Operating temperature range (-55°C to 150°C), reverse recovery time (35 ns), reverse leakage current (10 µA @ 300 V), and junction capacitance (30 pF @ 4V, 1MHz) are identical between both parts.

Q: What is the inventory status of these parts?

A: ES3FHR7G has 1,147 pieces in stock but is discontinued. ES3FH has 3,935 pieces in stock and is in active production, providing superior supply chain continuity.

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