ES1A-M3/5AT Equivalent & Substitute Parts

Part Overview

The ES1A-M3/5AT 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 1 A average rectified current in a DO-214AC (SMA) package. The part is classified as Active and complies with ROHS3 standards. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or specific packaging requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 1 A	mV
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Capacitance @ Vr, F	10	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
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 ES1A-M3/5AT are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 920 mV @ 1 A
Reverse Recovery Time (trr): 25 ns
Current - Reverse Leakage @ Vr: 5 µA @ 50 V
Capacitance @ Vr, F: 10 pF @ 4V, 1MHz
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain identical electrical specifications and mechanical compatibility with the main part. Variations in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and manufacturer do not affect functional equivalence when electrical parameters and case dimensions remain constant.

Parameter Comparison

Parameter	ES1A-M3/5AT (Vishay)	ES1A-E3/61T (Vishay)	ES1A-M3/61T (Vishay)	ES1AHE3_A/H (Vishay)	ES1A (YAGEO)	ES1A-13-F (Diodes Inc.)
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	—	1 A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 1 A	920 mV @ 1 A	920 mV @ 1 A	920 mV @ 1 A	0.95 V	920 mV @ 1 A
Reverse Recovery Time (trr)	25 ns	25 ns	25 ns	25 ns	—	25 ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V	—	5 µA @ 50 V
Capacitance @ Vr, F	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz	—	10 pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	—	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C	—	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	YAGEO	Diodes Incorporated
Automotive Grade / AEC-Q101	Standard	Standard	Standard	Automotive / AEC-Q101	—	Standard

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the ES1A-M3/5AT. Selection among equivalent parts is determined by the following factors:

Packaging Format Considerations:

ES1A-M3/5AT and ES1A-M3/61T are supplied in Tape & Reel (TR) format, suitable for high-volume automated assembly operations.
ES1A-E3/61T and ES1AHE3_A/H are supplied in Cut Tape (CT) & Digi-Reel® format, suitable for lower-volume or mixed-component pick-and-place operations.
ES1A (YAGEO) and ES1A-13-F are supplied in Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) formats respectively.

Manufacturer and Compliance:

Vishay General Semiconductor parts (ES1A-M3/5AT, ES1A-E3/61T, ES1A-M3/61T, ES1AHE3_A/H) are all ROHS3 compliant and REACH unaffected.
ES1AHE3_A/H carries automotive-grade qualification (AEC-Q101) and is suitable for automotive applications requiring enhanced reliability standards.
YAGEO ES1A and Diodes Incorporated ES1A-13-F are alternative manufacturers offering equivalent performance with ROHS3 compliance.

Product Status: All substitute parts are classified as Active and available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can ES1A-M3/5AT be directly replaced with ES1A-E3/61T?

A: Yes. Both parts are electrically identical with matching voltage, current, and thermal specifications. The primary difference is packaging format: ES1A-M3/5AT uses Tape & Reel (TR) while ES1A-E3/61T uses Cut Tape (CT) & Digi-Reel®. Direct substitution is valid when the receiving assembly process accommodates the different packaging format.

Q: What is the difference between ES1A-M3/61T and ES1A-M3/5AT?

A: Both parts are manufactured by Vishay in identical Tape & Reel (TR) packaging with matching electrical specifications. The suffix variation (61T versus 5AT) reflects internal Vishay part numbering conventions but does not indicate functional differences.

Q: Is ES1AHE3_A/H suitable for automotive applications?

A: Yes. ES1AHE3_A/H carries automotive-grade qualification and AEC-Q101 certification, making it suitable for automotive circuit applications requiring enhanced reliability and qualification standards.

Q: Can YAGEO ES1A replace Vishay ES1A-M3/5AT?

A: YAGEO ES1A is electrically equivalent with matching 50 V, 1 A specifications and ROHS3 compliance. However, limited detailed specifications are provided for the YAGEO part. Substitution is valid when manufacturer equivalence is acceptable for the application.

Q: What is the significance of the DO-214AC (SMA) package designation?

A: DO-214AC and SMA are equivalent designations for the same surface mount package. All substitute parts use this identical package, ensuring mechanical and thermal compatibility in PCB assembly.

Q: Are there any temperature rating differences among the substitute parts?

A: No. All substitute parts operate across the identical junction temperature range of -55°C to 150°C.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tape & Reel versus Cut Tape & Digi-Reel) affects only the physical delivery and handling method. Electrical performance remains identical across all substitute parts.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the lowest moisture sensitivity classification. Parts with MSL 1 have unlimited shelf life and do not require special moisture-control storage or handling procedures.

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