ES2G-LTP Equivalent & Substitute Parts

Part Overview

The ES2G-LTP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and features fast recovery characteristics with a reverse recovery time of 35 ns. The device is RoHS3 compliant and suitable for standard industrial and commercial applications requiring efficient rectification at moderate current levels.

Substitute parts are necessary when the primary component becomes unavailable, when alternative packaging formats are required, or when design specifications permit operation within the electrical and thermal parameters of equivalent devices. The following substitute parts maintain compatibility with the ES2G-LTP through matching voltage ratings, package form factors, and surface mount technology while offering variations in current ratings, recovery speed, and thermal characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 2 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 175	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the ES2G-LTP is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Current - Average Rectified (Io): Substitute parts rated at 1 A or 2 A are acceptable; however, 1 A rated devices represent current derating and are suitable only when circuit design permits reduced current capacity
Voltage - Forward (Vf) (Max): Variations within the range of 1.1 V to 1.6 V @ rated current are acceptable; forward voltage differences affect power dissipation and thermal performance
Speed Classification: Both Fast Recovery (≤ 500ns) and Standard Recovery (>500ns) devices are functionally compatible; recovery speed affects switching characteristics and electromagnetic interference
Reverse Recovery Time (trr): Variations from 30 ns to 35 ns are acceptable; faster recovery reduces switching losses
Operating Temperature - Junction: Substitute parts with maximum junction temperatures of 150°C or 175°C are acceptable; higher temperature ratings provide additional thermal margin

Conditional Parameters:

Product Status: Active status is preferred; parts marked "Not For New Designs" are acceptable for replacement in existing applications but not recommended for new circuit development
Automotive Grade / AEC-Q101 Qualification: These certifications are optional enhancements; their presence does not restrict substitution but indicates additional qualification testing

Parameter Comparison

Parameter	ES2G-LTP (Main)	STTH1R04AY	STTH1R04A	NRVA4004T3G	CGRA4004-G	RR2L4SDDTE25
Manufacturer	Micro Commercial Co	STMicroelectronics	STMicroelectronics	onsemi	Comchip Technology	Rohm Semiconductor
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	2 A	1 A	1 A	1 A	1 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 2 A	1.6 V @ 1 A	1.5 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 2 A
Speed Classification	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns
Reverse Recovery Time (trr)	35 ns	30 ns	30 ns	—	—	—
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	10 µA @ 400 V	5 µA @ 400 V	10 µA @ 400 V
Package / Case	DO-214AC, SMA	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 (Max)	175°C	175°C	175°C	175°C	150°C	150°C
Product Status	Active	Active	Active	Not For New Designs	Active	Not For New Designs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade / AEC-Q101	—	Yes	—	Yes	—	Yes

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

STTH1R04AY and STTH1R04A are the preferred substitute options. Both devices are manufactured by STMicroelectronics with Active product status, ensuring continued availability and support. STTH1R04AY includes AEC-Q101 automotive qualification and is available in Tape & Reel packaging, making it suitable for high-volume production environments. STTH1R04A is available in Cut Tape & Digi-Reel format. Both maintain the 400 V voltage rating and fast recovery characteristics of the ES2G-LTP. The primary limitation is the reduced current rating of 1 A compared to the ES2G-LTP's 2 A rating; substitution is valid only when circuit design permits operation at the lower current capacity.

CGRA4004-G, manufactured by Comchip Technology, is an Active product with 400 V rating and 1 A current capacity. This device features standard recovery speed and is available in Tape & Reel packaging. The forward voltage of 1.1 V is lower than the ES2G-LTP, resulting in reduced power dissipation. Current derating to 1 A applies to this substitute.

Secondary Substitutes (Not For New Designs Status):

NRVA4004T3G (onsemi) and RR2L4SDDTE25 (Rohm Semiconductor) are classified as "Not For New Designs" and are suitable only for replacement in existing applications or legacy system maintenance. NRVA4004T3G is rated for 1 A with standard recovery speed and includes AEC-Q101 automotive qualification. RR2L4SDDTE25 maintains the 2 A current rating of the ES2G-LTP and includes AEC-Q101 qualification but is limited to a maximum junction temperature of 150°C compared to the ES2G-LTP's 175°C.

Current Rating Considerations:

Substitutes rated at 1 A (STTH1R04AY, STTH1R04A, NRVA4004T3G, CGRA4004-G) represent a 50% reduction in current capacity. These devices are electrically compatible with the ES2G-LTP only when the circuit design operates at or below 1 A average rectified current. Thermal analysis must confirm that the reduced current capacity does not compromise circuit performance or reliability.

Recovery Speed Considerations:

The ES2G-LTP features fast recovery (≤ 500ns, 35 ns trr). Substitutes with standard recovery speed (NRVA4004T3G, CGRA4004-G, RR2L4SDDTE25) exhibit longer reverse recovery times. In high-frequency switching applications, this difference may affect electromagnetic interference characteristics and switching losses. Standard recovery devices are functionally compatible in low-frequency rectification circuits.

Temperature Rating Considerations:

CGRA4004-G and RR2L4SDDTE25 are limited to 150°C maximum junction temperature, compared to 175°C for the ES2G-LTP. In thermal-constrained applications operating near the upper temperature limit, these devices may not provide equivalent thermal margin.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 1 A rated diode for the ES2G-LTP's 2 A rating?

A: Electrical substitution is valid only when circuit design permits operation at 1 A or below. The 1 A rated substitutes (STTH1R04AY, STTH1R04A, NRVA4004T3G, CGRA4004-G) are electrically compatible with the ES2G-LTP at reduced current levels. Thermal analysis and circuit simulation must confirm that the lower current capacity does not compromise system performance, reliability, or safety margins.

Q: What is the difference between fast recovery and standard recovery diodes?

A: Fast recovery diodes (ES2G-LTP, STTH1R04AY, STTH1R04A) exhibit reverse recovery times of 30-35 ns and are optimized for high-frequency switching applications where reduced switching losses and electromagnetic interference are critical. Standard recovery diodes (NRVA4004T3G, CGRA4004-G, RR2L4SDDTE25) have reverse recovery times exceeding 500 ns and are suitable for low-frequency rectification. In applications operating below 100 kHz, recovery speed differences are negligible.

Q: Are "Not For New Designs" parts acceptable for my application?

A: Parts marked "Not For New Designs" (NRVA4004T3G, RR2L4SDDTE25) are acceptable for replacement in existing systems or legacy applications where the original ES2G-LTP is no longer available. These devices are not recommended for new circuit development due to potential discontinuation or limited future support. For new designs, select from Active status substitutes: STTH1R04AY, STTH1R04A, or CGRA4004-G.

Q: What is the impact of forward voltage differences on my circuit?

A: Forward voltage variations from 1.1 V to 1.6 V affect power dissipation and thermal performance. Lower forward voltages (CGRA4004-G, NRVA4004T3G, RR2L4SDDTE25 at 1.1 V) reduce power loss compared to the ES2G-LTP (1.25 V) and STTH1R04AY (1.6 V). In high-current applications, forward voltage differences directly impact thermal design. Thermal analysis must confirm that substitute devices do not exceed junction temperature limits under worst-case operating conditions.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use the DO-214AC (SMA) surface mount package, ensuring mechanical and footprint compatibility. Packaging format variations exist: ES2G-LTP and STTH1R04A are available in Cut Tape (CT) format; STTH1R04AY and CGRA4004-G are available in Tape & Reel (TR) format; RR2L4SDDTE25 is available in Cut Tape & Digi-Reel format. Selection depends on production volume and assembly requirements.

Q: What does RoHS3 compliance mean for substitution?

A: All listed substitute parts are RoHS3 compliant, indicating compliance with the Restriction of Hazardous Substances Directive. This compliance is mandatory for most commercial and industrial applications and ensures that all substitute parts meet the same environmental and material restrictions as the ES2G-LTP.

Q: Can I use a substitute with AEC-Q101 automotive qualification in a non-automotive application?

A: Yes. AEC-Q101 qualification indicates additional testing and reliability verification beyond standard commercial requirements. Automotive-qualified parts (STTH1R04AY, NRVA4004T3G, RR2L4SDDTE25) are fully compatible with non-automotive applications and provide enhanced reliability margins. The presence of automotive qualification does not restrict use in commercial or industrial applications.

Q: What is the maximum junction temperature difference between the ES2G-LTP and its substitutes?

A: The ES2G-LTP and most substitutes (STTH1R04AY, STTH1R04A, NRVA4004T3G) are rated to 175°C maximum junction temperature. CGRA4004-G and RR2L4SDDTE25 are limited to 150°C, representing a 25°C reduction in thermal headroom. In applications operating near the upper temperature limit, the lower-rated devices may not provide equivalent thermal margin and require thermal re-analysis.

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