ES2LG Equivalent & Substitute Parts

Part Overview

The ES2LG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This fast recovery diode with 35 ns reverse recovery time is designed for standard rectification applications requiring efficient switching performance. The part is currently active in production with 866 units in stock and carries full RoHS3 compliance and REACH unaffected status.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, support different packaging formats (Tape & Reel versus Cut Tape), and address specific application requirements such as automotive qualification or extended temperature ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 2 A
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 400 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the ES2LG is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 2 A or lower
Reverse Recovery Time (trr): ≤ 500 ns (Fast Recovery classification)
Operating Temperature Range: Minimum -55°C, Maximum ≥ 150°C
Moisture Sensitivity Level: 1 (Unlimited)

Parts are classified as Parametric Equivalents when all primary criteria and secondary factors align within the specified tolerances. Parts are classified as Similar when they meet primary criteria but differ in secondary parameters such as current rating, forward voltage, or recovery time characteristics.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Status	Inventory [Pcs]
ES2LG	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Active	866
ES2G	YAGEO	400	—	1.3	—	—	DO-214AA, SMB	Active	29200
ES2G R5G	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Discontinued at DiGi Electronics	1567
ES2GH	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Active	9400
HS2G	Good-Ark Semiconductor	400	2	1.3 @ 2 A	50	5 @ 400 V	DO-214AA, SMB	Active	2600
RS2G	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	150	5 @ 400 V	DO-214AA, SMB	Active	15365
CGRB204-G	Comchip Technology	400	2	1.1 @ 2 A	—	5 @ 400 V	DO-214AA, SMB	Active	749
CGRB304-G	Comchip Technology	400	3	1.1 @ 3 A	—	5 @ 400 V	DO-214AA, SMB	Active	11447
ER1G-LTP	Micro Commercial Co	400	1	1.25 @ 1 A	35	5 @ 400 V	DO-214AA, SMB	Active	39594
ER2G-LTP	Micro Commercial Co	400	2	1.25 @ 2 A	35	5 @ 400 V	DO-214AA, SMB	Active	3200
ER3GB-TP	Micro Commercial Co	400	3	1.25 @ 3 A	35	5 @ 400 V	DO-214AA, SMB	Active	43368

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitution):

The following parts are parametric equivalents to the ES2LG and support direct substitution in applications where the specified electrical and mechanical parameters are met:

ES2G (YAGEO): Active status with high inventory (29,200 units). Meets 400 V, 2 A, DO-214AA package requirements. ROHS3 compliant. Suitable for general-purpose rectification applications.
ES2GH (Taiwan Semiconductor Corporation): Active status with 9,400 units in stock. Identical electrical specifications to ES2LG. Carries AEC-Q101 automotive qualification and automotive grade designation. Recommended for automotive and mission-critical applications requiring formal qualification documentation.
ER2G-LTP (Micro Commercial Co): Active status with 3,200 units. Meets 400 V, 2 A, DO-214AA package requirements. Extended operating temperature range (-65°C to 175°C) compared to ES2LG (-55°C to 150°C). Forward voltage 1.25 V @ 2 A (slightly higher than ES2LG at 1.3 V). Reverse leakage 5 µA @ 400 V (lower than ES2LG at 10 µA). Suitable for applications requiring extended temperature performance.

Parametric Equivalents with Operational Differences:

HS2G (Good-Ark Semiconductor): Active status with 2,600 units. Meets 400 V, 2 A, DO-214AA package. Reverse recovery time 50 ns (higher than ES2LG at 35 ns). Reverse leakage 5 µA @ 400 V (lower than ES2LG). Suitable where slightly slower recovery is acceptable and lower leakage current is beneficial.
RS2G (Taiwan Semiconductor Corporation): Active status with 15,365 units. Meets 400 V, 2 A, DO-214AA package. Reverse recovery time 150 ns (significantly higher than ES2LG at 35 ns). Reverse leakage 5 µA @ 400 V (lower than ES2LG). Suitable for standard recovery applications where fast switching is not required.

Similar Parts (Current Rating Variations):

CGRB204-G (Comchip Technology): Active status with 749 units. Meets 400 V, 2 A, DO-214AA package. Forward voltage 1.1 V @ 2 A (lower than ES2LG). Standard recovery classification (>500 ns). Suitable for applications where lower forward voltage drop is advantageous.
CGRB304-G (Comchip Technology): Active status with 11,447 units. 400 V, 3 A rating (higher current than ES2LG). DO-214AA package. Forward voltage 1.1 V @ 3 A. Standard recovery classification. Suitable for applications requiring higher current capacity.
ER1G-LTP (Micro Commercial Co): Active status with 39,594 units. 400 V, 1 A rating (lower current than ES2LG). DO-214AA package. Fast recovery 35 ns. Extended temperature range (-65°C to 175°C). Suitable for lower-current applications requiring extended temperature performance.
ER3GB-TP (Micro Commercial Co): Active status with 43,368 units. 400 V, 3 A rating (higher current than ES2LG). DO-214AA package. Fast recovery 35 ns. Suitable for higher-current applications requiring fast switching.

Discontinued Parts:

ES2G R5G (Taiwan Semiconductor Corporation): Discontinued at DiGi Electronics. Identical electrical specifications to ES2LG. Not recommended for new designs due to discontinued status, though 1,567 units remain in inventory.

Frequently Asked Questions (FAQ)

Q: Can ES2G from YAGEO be used as a direct replacement for ES2LG?

A: Yes. ES2G meets the primary equivalence criteria of 400 V reverse voltage, 2 A average rectified current, and DO-214AA surface mount package. Both parts are ROHS3 compliant with MSL 1 rating. ES2G has significantly higher inventory availability (29,200 units versus 866 units for ES2LG).

Q: What is the difference between ES2GH and ES2LG?

A: ES2GH and ES2LG are electrically identical in all specified parameters. The key distinction is that ES2GH carries AEC-Q101 automotive qualification and automotive grade designation. ES2GH is recommended for automotive applications or designs requiring formal qualification documentation. ES2GH has higher inventory (9,400 units).

Q: Can I use ER2G-LTP instead of ES2LG?

A: Yes, with operational considerations. ER2G-LTP meets the 400 V, 2 A, DO-214AA package requirements and fast recovery classification. Forward voltage is 1.25 V @ 2 A (versus 1.3 V for ES2LG), and reverse leakage is 5 µA @ 400 V (versus 10 µA for ES2LG). ER2G-LTP offers extended operating temperature range (-65°C to 175°C versus -55°C to 150°C). These differences are compatible with ES2LG applications.

Q: Why would I choose RS2G over ES2LG?

A: RS2G is suitable when fast recovery performance is not required. RS2G has reverse recovery time of 150 ns compared to ES2LG at 35 ns. RS2G offers significantly higher inventory (15,365 units) and lower reverse leakage current (5 µA @ 400 V versus 10 µA for ES2LG). RS2G is appropriate for standard rectification applications where switching speed is not a limiting factor.

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

A: Fast recovery diodes have reverse recovery time ≤ 500 ns and are designed for high-frequency switching applications. Standard recovery diodes have reverse recovery time > 500 ns and are suitable for lower-frequency or DC rectification. ES2LG is classified as fast recovery (35 ns). RS2G is classified as standard recovery (150 ns). Selection depends on application switching frequency requirements.

Q: Can I use CGRB304-G (3 A) instead of ES2LG (2 A)?

A: CGRB304-G is a similar part with higher current rating (3 A versus 2 A). It meets the 400 V reverse voltage and DO-214AA package requirements. The higher current rating provides design margin for applications where current demand may approach or exceed 2 A. However, CGRB304-G uses standard recovery classification (>500 ns) versus ES2LG fast recovery (35 ns). Selection depends on whether fast switching performance is required.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity limitations. These parts do not require special moisture control during storage, handling, or assembly. Both ES2LG and all listed substitute parts carry MSL 1 rating, ensuring compatibility in standard manufacturing environments.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All parts listed in this reference carry ROHS3 compliance and REACH unaffected status. All parts are suitable for applications requiring environmental compliance with European Union directives.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging supplies components on tape cut into smaller lengths, suitable for lower-volume or manual assembly. ES2LG is supplied in Tape & Reel format. ES2G R5G is supplied in Cut Tape format. Both formats contain identical components; packaging format selection depends on assembly volume and equipment compatibility.

Q: Can I substitute ES2LG with ER1G-LTP?

A: ER1G-LTP is a similar part with lower current rating (1 A versus 2 A). It is not suitable as a direct replacement for ES2LG in applications requiring 2 A average rectified current. ER1G-LTP is appropriate only for applications with maximum current requirements of 1 A or less.

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