ES1AE-TP Equivalent & Substitute Parts

Part Overview

The ES1AE-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1 A average rectified current in a DO-214AC (SMA) surface mount package. This part is classified as Obsolete, indicating it is no longer in active production. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing manufacturing requirements for applications utilizing this diode specification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 1 A	mV
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Mounting Type	Surface Mount	-
Package / Case	DO-214AC, SMA	-
Operating Temperature - Junction	-50°C ~ 150°C	°C
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the ES1AE-TP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 1 A
Mounting Type: Surface Mount
Package / Case: DO-214AC or compatible SMA variant

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Substitute parts may operate at lower forward voltage (improved efficiency) or within acceptable tolerance
Speed: Substitute parts may feature Fast Recovery (≤500ns) or Standard Recovery (>500ns); both are functionally acceptable
Current - Reverse Leakage @ Vr: Substitute parts may operate at equal or lower leakage current
Operating Temperature - Junction: Substitute parts may support extended temperature ranges
Product Status: Active parts are preferred over Obsolete or Not For New Designs classifications

Package Compatibility: The ES1AE-TP uses DO-214AC (SMA) packaging. Substitute parts using DO-214BA (GF1) packaging represent a minor package variant and are included as functional equivalents with identical electrical performance.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ 1A	Speed	Reverse Leakage @ Vr	Package	Product Status	Temp Range
ES1AE-TP	Micro Commercial Co	50 V	1 A	975 mV	Standard >500ns	5 µA @ 50V	DO-214AC	Obsolete	-50°C ~ 150°C
ES1A-LTP	Micro Commercial Co	50 V	1 A	950 mV	Fast ≤500ns	5 µA @ 50V	DO-214AC	Not For New Designs	-65°C ~ 175°C
CGRA4001-G	Comchip Technology	50 V	1 A	1.1 V	Standard >500ns	5 µA @ 50V	DO-214AC	Active	-55°C ~ 150°C
EGF1A	Fairchild Semiconductor	50 V	1 A	1 V	Fast ≤500ns	10 µA @ 50V	DO-214AC	Active	-65°C ~ 175°C
EGF1A-E3/5CA	Vishay General Semiconductor	50 V	1 A	1 V	Fast ≤500ns	5 µA @ 50V	DO-214BA	Active	-65°C ~ 175°C
EGF1A-E3/67A	Vishay General Semiconductor	50 V	1 A	1 V	Fast ≤500ns	5 µA @ 50V	DO-214BA	Active	-65°C ~ 175°C
ES1A	YAGEO	50 V	1 A	-	-	-	DO-214AC	Active	-
ES1A-13-F	Diodes Incorporated	50 V	1 A	920 mV	Fast ≤500ns	5 µA @ 50V	DO-214AC	Active	-55°C ~ 150°C
ES1A-E3/5AT	Vishay General Semiconductor	50 V	1 A	920 mV	Fast ≤500ns	5 µA @ 50V	DO-214AC	Active	-55°C ~ 155°C
ES1A-E3/61T	Vishay General Semiconductor	50 V	1 A	920 mV	Fast ≤500ns	5 µA @ 50V	DO-214AC	Active	-55°C ~ 150°C
GF1A	onsemi	50 V	1 A	1 V	Standard >500ns	5 µA @ 50V	DO-214AC	Not For New Designs	-65°C ~ 175°C

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs):

The following parts are classified as Active and represent the preferred substitutes for the obsolete ES1AE-TP:

ES1A-13-F (Diodes Incorporated): Maintains DO-214AC packaging, delivers 920 mV forward voltage at 1 A, features Fast Recovery characteristics, and operates across -55°C to 150°C. ROHS3 compliant with MSL 1.
ES1A-E3/5AT (Vishay General Semiconductor): Maintains DO-214AC packaging, delivers 920 mV forward voltage at 1 A, features Fast Recovery characteristics, and operates across -55°C to 155°C. ROHS3 compliant with MSL 1.
ES1A-E3/61T (Vishay General Semiconductor): Maintains DO-214AC packaging, delivers 920 mV forward voltage at 1 A, features Fast Recovery characteristics, and operates across -55°C to 150°C. ROHS3 compliant with MSL 1.
CGRA4001-G (Comchip Technology): Maintains DO-214AC packaging and Standard Recovery speed matching the original part, operates across -55°C to 150°C. ROHS3 compliant with MSL 1.
EGF1A (Fairchild Semiconductor): Delivers 1 V forward voltage at 1 A with Fast Recovery characteristics and extended temperature range (-65°C to 175°C). ROHS3 compliant.
EGF1A-E3/5CA and EGF1A-E3/67A (Vishay General Semiconductor): Both deliver 1 V forward voltage at 1 A with Fast Recovery characteristics, extended temperature range (-65°C to 175°C), and DO-214BA packaging. ROHS3 compliant with MSL 1.
ES1A (YAGEO): Active status with DO-214AC packaging. ROHS3 compliant with MSL 1.

Secondary Substitutes (Not For New Designs, Available for Legacy Support):

ES1A-LTP (Micro Commercial Co): Classified as Not For New Designs but offers improved Fast Recovery characteristics (≤500ns, 35 ns trr) and extended temperature range (-65°C to 175°C). ROHS3 compliant with MSL 1.
GF1A (onsemi): Classified as Not For New Designs but maintains Standard Recovery speed and extended temperature range (-65°C to 175°C). ROHS3 compliant with MSL 1.

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited moisture sensitivity), and REACH Unaffected status, ensuring regulatory alignment with the original ES1AE-TP specification.

Frequently Asked Questions (FAQ)

Q: Can ES1A-13-F replace ES1AE-TP directly in existing designs?

A: Yes. Both parts share identical voltage ratings (50 V reverse, 1 A average rectified current), surface mount configuration, and DO-214AC packaging. ES1A-13-F operates at 920 mV forward voltage compared to 975 mV for ES1AE-TP, representing improved efficiency. Fast Recovery characteristics (25 ns trr) provide superior switching performance. Temperature range (-55°C to 150°C) covers the original specification (-50°C to 150°C).

Q: What is the difference between DO-214AC and DO-214BA packages?

A: Both are surface mount packages for 1 A rectifier diodes. DO-214AC (SMA) and DO-214BA (GF1) are physically distinct package variants. Parts using DO-214BA (EGF1A-E3/5CA, EGF1A-E3/67A) are functionally equivalent but require PCB layout adjustment. Verify footprint compatibility before substitution.

Q: Why do some substitutes show higher forward voltage (1.1 V for CGRA4001-G)?

A: Forward voltage variation within the 50 V / 1 A rectifier class is normal and acceptable. CGRA4001-G at 1.1 V remains within standard rectifier specifications. Higher forward voltage results in slightly increased power dissipation; verify thermal design margins in power-sensitive applications.

Q: Are Fast Recovery substitutes compatible with Standard Recovery designs?

A: Yes. Fast Recovery diodes (≤500ns) are functionally compatible with Standard Recovery designs (>500ns). Fast Recovery parts offer improved switching characteristics and reduced reverse recovery time, providing performance benefits without design modification. No compatibility issues exist.

Q: Which substitute offers the widest operating temperature range?

A: EGF1A, EGF1A-E3/5CA, EGF1A-E3/67A, and GF1A all operate across -65°C to 175°C, compared to the original ES1AE-TP range of -50°C to 150°C. These parts provide extended thermal margin for demanding applications.

Q: Is ES1A-LTP suitable for new production despite "Not For New Designs" status?

A: ES1A-LTP is available in high inventory (5415 pcs) and maintains full ROHS3 compliance and MSL 1 rating. The "Not For New Designs" classification indicates manufacturer preference for newer alternatives. For legacy support or interim supply, ES1A-LTP is functionally qualified. Prioritize Active-status parts (ES1A-13-F, ES1A-E3/5AT, ES1A-E3/61T) for new production.

Q: What is the reverse leakage current specification across substitutes?

A: Most substitutes maintain 5 µA @ 50 V leakage, matching the original ES1AE-TP. EGF1A specifies 10 µA @ 50 V, which remains within acceptable rectifier specifications. Leakage current differences are negligible in typical rectification applications.

Q: Can I use YAGEO ES1A as a direct replacement?

A: Yes. YAGEO ES1A is Active status with DO-214AC packaging and 50 V / 1 A rating. Limited detailed specifications are provided in the reference data, but the part number alignment and Active status confirm functional equivalence. Request detailed datasheet specifications from the supplier for complete parameter verification.

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