CSA2G-E3/I Equivalent & Substitute Parts

Part Overview

The CSA2G-E3/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 400 V DC reverse voltage and 1.6 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1.6	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 2	V @ A
Reverse Recovery Time (trr)	2.1	µs
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the CSA2G-E3/I is determined by the following criteria:

Primary Compatibility Requirements:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 400 V
Package / Case: Must be DO-214AC (SMA) surface mount
Mounting Type: Must be surface mount
Operating Temperature - Junction: Must support -55°C to 150°C range
RoHS Status: Must maintain ROHS3 compliance

Secondary Compatibility Considerations:

Current - Average Rectified (Io): Substitute must meet or exceed 1.6 A requirement
Voltage - Forward (Vf): Lower forward voltage indicates improved efficiency
Reverse Recovery Time (trr): Faster recovery time indicates improved switching performance

The CSA2G-E3/I has two identified substitutes: SA2G-E3/5AT (Vishay General Semiconductor - Diodes Division) and CURA104-G (Comchip Technology). Both maintain the 400 V reverse voltage rating and DO-214AC package specification. SA2G-E3/5AT is a direct Vishay alternative with higher current rating (2 A) and active product status. CURA104-G is a manufacturer-recommended alternative with different recovery characteristics and lower current rating (1 A).

Parameter Comparison

Parameter	CSA2G-E3/I	SA2G-E3/5AT	CURA104-G
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Comchip Technology
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V
Current - Average Rectified (Io)	1.6 A	2 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2 A	1.1 V @ 2 A	1.3 V @ 1 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	2.1 µs	1.5 µs	50 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V	3 µA @ 400 V	5 µA @ 400 V
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	150°C (Max)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

SA2G-E3/5AT (Vishay General Semiconductor - Diodes Division)

The SA2G-E3/5AT is the primary substitute for the obsolete CSA2G-E3/I. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical voltage ratings (400 V), package specifications (DO-214AC, SMA), and operating temperature ranges (-55°C to 150°C). The SA2G-E3/5AT carries active product status with higher current capacity (2 A versus 1.6 A), lower forward voltage (1.1 V versus 1.15 V at 2 A), and improved reverse recovery time (1.5 µs versus 2.1 µs). Both parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and REACH unaffected status. The SA2G-E3/5AT is available in higher inventory quantities (21,639 pcs) and is packaged in Tape & Reel format.

CURA104-G (Comchip Technology)

The CURA104-G is a manufacturer-recommended alternative with identical voltage rating (400 V) and package specification (DO-214AC, SMA). This part features fast recovery characteristics (50 ns reverse recovery time versus 2.1 µs), which differs significantly from the standard recovery profile of the CSA2G-E3/I. The CURA104-G has a lower current rating (1 A versus 1.6 A) and higher forward voltage (1.3 V @ 1 A). The operating temperature maximum is specified as 150°C without a minimum temperature specification. CURA104-G maintains ROHS3 compliance and REACH unaffected status. This substitute is suitable for applications where fast recovery characteristics are beneficial and current requirements do not exceed 1 A.

Frequently Asked Questions (FAQ)

Q: Can SA2G-E3/5AT be used as a direct replacement for CSA2G-E3/I?

A: Yes. Both parts share the same 400 V reverse voltage rating, DO-214AC (SMA) package, surface mount configuration, and -55°C to 150°C operating temperature range. SA2G-E3/5AT provides higher current capacity (2 A) and improved electrical characteristics (lower forward voltage and faster recovery time), making it a compatible upgrade. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level.

Q: What is the primary difference between SA2G-E3/5AT and CURA104-G?

A: SA2G-E3/5AT is a Vishay part with standard recovery characteristics (1.5 µs), 2 A current rating, and 1.1 V forward voltage. CURA104-G is a Comchip part with fast recovery characteristics (50 ns), 1 A current rating, and 1.3 V forward voltage. SA2G-E3/5AT is the preferred substitute for direct replacement due to higher current capacity and lower forward voltage. CURA104-G is suitable for applications requiring fast recovery performance with current requirements not exceeding 1 A.

Q: Are all three parts available in the same package?

A: Yes. CSA2G-E3/I, SA2G-E3/5AT, and CURA104-G are all specified in DO-214AC (SMA) surface mount package. SA2G-E3/5AT and CURA104-G are supplied in Tape & Reel (TR) packaging format, which is standard for active production parts.

Q: What compliance certifications apply to these substitutes?

A: All three parts maintain ROHS3 compliance, REACH unaffected status, and moisture sensitivity level 1 (unlimited). Both substitutes are suitable for applications requiring these compliance standards.

Q: Can CURA104-G be used in applications requiring 1.6 A current?

A: No. CURA104-G is rated for 1 A average rectified current, which is below the 1.6 A requirement of the CSA2G-E3/I. SA2G-E3/5AT, rated for 2 A, is the appropriate substitute for applications requiring 1.6 A or higher current capacity.

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

A: CSA2G-E3/I has a reverse recovery time of 2.1 µs (standard recovery). SA2G-E3/5AT has 1.5 µs (standard recovery), and CURA104-G has 50 ns (fast recovery). Faster recovery time reduces switching losses and improves efficiency in high-frequency applications. Standard recovery parts are suitable for general-purpose rectification, while fast recovery parts are beneficial in switching power supplies and high-frequency circuits.

Q: Why is CSA2G-E3/I classified as obsolete?

A: The CSA2G-E3/I is listed as obsolete, indicating it is no longer in active production. SA2G-E3/5AT and CURA104-G are both active products with current manufacturing and availability, making them suitable alternatives for new designs and ongoing production.

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