ES3A-M3/9AT Equivalent & Substitute Parts

Part Overview

The ES3A-M3/9AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 50 V DC reverse voltage with a 3 A average rectified current rating and is packaged in the DO-214AB (SMC) form factor. The device 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, manufacturing discontinuation, or design flexibility within the same application category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 3 A	mV
Reverse Recovery Time (trr)	30	ns
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Capacitance @ Vr, F	45	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the ES3A-M3/9AT are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 50 V reverse voltage, 3 A average rectified current, 900 mV forward voltage drop at 3 A, 30 ns reverse recovery time, 10 µA reverse leakage current, and DO-214AB (SMC) package configuration. These parts are direct functional replacements with no circuit redesign required.

Manufacturer Recommended Substitute (HS5A R7G) differs in current rating (5 A versus 3 A) and reverse recovery time (50 ns versus 30 ns), representing an upgraded specification that maintains voltage compatibility and package form factor. This part is suitable for applications where higher current capacity is acceptable or beneficial.

Substitution eligibility is determined by matching the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 50 V
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C
RoHS Compliance: ROHS3 Compliant

Parameter Comparison

Parameter	ES3A-M3/9AT	ES3A-E3/57T	ES3A-E3/9AT	ES3A-13-F	HS5A R7G
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Diodes Incorporated	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	5 A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 3 A	900 mV @ 3 A	900 mV @ 3 A	900 mV @ 3 A	1 V @ 5 A
Reverse Recovery Time (trr)	30 ns	30 ns	30 ns	25 ns	50 ns
Current - Reverse Leakage @ Vr	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V
Capacitance @ Vr, F	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	80 pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Packaging Type	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT)
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
Product Status	Active	Active	Active	Active	Discontinued at DiGi Electronics
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)

Engineering Selection Recommendations

Parametric Equivalents (ES3A-E3/57T, ES3A-E3/9AT, ES3A-13-F)

These three parts provide direct electrical and mechanical equivalence to the ES3A-M3/9AT. All maintain identical voltage ratings, current capacity, forward voltage characteristics, and reverse recovery performance. All are ROHS3 compliant with MSL 1 rating and identical operating temperature ranges.

ES3A-E3/57T and ES3A-E3/9AT are manufactured by Vishay General Semiconductor and are supplied in Tape & Reel packaging, matching the original part's packaging format. ES3A-13-F is manufactured by Diodes Incorporated and is supplied in Cut Tape and Digi-Reel® packaging. The ES3A-13-F exhibits a marginally faster reverse recovery time of 25 ns compared to 30 ns, representing improved switching performance within the same functional class.

All three parametric equivalents carry Active product status and are suitable for direct substitution in applications where the ES3A-M3/9AT is specified.

Manufacturer Recommended Substitute (HS5A R7G)

The HS5A R7G is manufactured by Taiwan Semiconductor Corporation and operates at the same 50 V reverse voltage with an upgraded 5 A average rectified current rating. This part is suitable for applications where higher current capacity is required or where design margin is beneficial. The reverse recovery time is 50 ns, which is longer than the original part's 30 ns specification. The forward voltage drop is 1 V at 5 A, compared to 900 mV at 3 A for the original part.

The HS5A R7G carries Discontinued at DiGi Electronics status, indicating limited future availability. This part maintains ROHS3 compliance and MSL 1 rating with identical operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can ES3A-E3/57T, ES3A-E3/9AT, and ES3A-13-F be used interchangeably with ES3A-M3/9AT?

A: Yes. These three parts are parametric equivalents with identical electrical specifications across voltage rating, current capacity, forward voltage drop, reverse recovery time, and reverse leakage current. All are packaged in DO-214AB (SMC) form factor and operate across the same temperature range. Substitution requires no circuit modification.

Q: What is the difference between the Tape & Reel and Cut Tape packaging options?

A: Tape & Reel (TR) packaging is supplied on continuous tape spools suitable for high-volume automated assembly. Cut Tape (CT) packaging is supplied in shorter tape segments. Digi-Reel® is a proprietary reel format. All three packaging formats contain the same electronic component in the same DO-214AB (SMC) package. Selection depends on assembly equipment compatibility and order quantity requirements.

Q: Can HS5A R7G replace ES3A-M3/9AT in all applications?

A: HS5A R7G maintains the same 50 V reverse voltage rating and DO-214AB (SMC) package configuration. However, it provides 5 A current capacity versus 3 A, and exhibits 50 ns reverse recovery time versus 30 ns. Applications designed for 3 A operation will function with HS5A R7G, but the higher current rating and longer recovery time represent different electrical characteristics. HS5A R7G is classified as Discontinued at DiGi Electronics, limiting future availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ES3A-E3/57T, ES3A-E3/9AT, ES3A-13-F, and HS5A R7G are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original ES3A-M3/9AT specification.

Q: What is the significance of reverse recovery time differences?

A: Reverse recovery time (trr) affects switching speed in rectifier applications. ES3A-13-F exhibits 25 ns trr, while ES3A-M3/9AT, ES3A-E3/57T, and ES3A-E3/9AT exhibit 30 ns trr. HS5A R7G exhibits 50 ns trr. Lower reverse recovery time enables faster switching transitions. All values fall within the Fast Recovery classification (≤500 ns, >200 mA).

Q: What inventory levels are available for each substitute part?

A: ES3A-M3/9AT: 953 Pcs. ES3A-E3/57T: 5250 Pcs. ES3A-E3/9AT: 2177 Pcs. ES3A-13-F: 10300 Pcs. HS5A R7G: 860 Pcs. Inventory levels are subject to change and should be verified at time of procurement.

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