Equivalent & Substitute Parts for CSA2M-E3/H

Part Overview

The CSA2M-E3/H is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This part is manufactured by Vishay General Semiconductor - Diodes Division and is currently classified as obsolete. Due to its obsolete status, equivalent and substitute parts with active product status are necessary to maintain design continuity and ensure ongoing component availability for new production and field replacements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2 A	V
Reverse Recovery Time (trr)	2.1	µs
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C

Substitute Part Grouping Explanation

Substitution eligibility for the CSA2M-E3/H is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 1000 V
Current - Average Rectified (Io): Must equal or exceed 2 A
Package / Case: Must be DO-214AC (SMA) surface mount
Operating Temperature - Junction: Must span -55°C to 150°C or wider

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max): Lower values indicate improved efficiency
Reverse Recovery Time (trr): Affects switching performance in rectification circuits
Current - Reverse Leakage @ Vr: Lower values indicate superior reverse blocking characteristics

Parts meeting all primary criteria are classified as direct substitutes. Parts meeting primary criteria with variations in secondary parameters are classified as functional equivalents with noted performance differences.

Parameter Comparison

Parameter	CSA2M-E3/H (Main Part)	SA2M-E3/61T (Substitute)	RS2MA (Substitute)
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	1000 V
Current - Average Rectified (Io)	2 A	2 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2 A	1.1 V @ 2 A	1.3 V @ 1.5 A
Reverse Recovery Time (trr)	2.1 µs	1.5 µs	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	3 µA @ 1000 V	5 µA @ 1000 V
Capacitance @ Vr, F	11 pF @ 4V, 1MHz	11 pF @ 4V, 1MHz	50 pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	Not specified	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SA2M-E3/61T (Vishay General Semiconductor - Diodes Division)

This part is the primary direct substitute for the CSA2M-E3/H. It maintains identical voltage and current ratings (1000 V, 2 A) and package configuration (DO-214AC, SMA). The SA2M-E3/61T is manufactured by the same supplier as the original part and carries active product status. It demonstrates improved performance characteristics with lower forward voltage (1.1 V versus 1.15 V) and faster reverse recovery time (1.5 µs versus 2.1 µs). The part is ROHS3 compliant and carries MSL 1 rating, indicating superior moisture handling. This substitute is recommended for direct replacement in new designs and production environments.

RS2MA (Taiwan Semiconductor Corporation)

This part meets the voltage rating requirement (1000 V) and package specification (DO-214AC, SMA) but operates at a reduced current rating of 1.5 A compared to the original 2 A specification. The RS2MA exhibits faster recovery characteristics (500 ns) and is ROHS3 compliant with MSL 1 rating. This substitute is suitable only for applications where the circuit current demand does not exceed 1.5 A. The higher capacitance value (50 pF versus 11 pF) may affect high-frequency performance. This part is recommended only when current requirements are confirmed to be below 1.5 A.

Frequently Asked Questions (FAQ)

Q: Can SA2M-E3/61T be used as a direct replacement for CSA2M-E3/H?

A: Yes. The SA2M-E3/61T meets all primary substitution criteria: identical 1000 V reverse voltage rating, identical 2 A current rating, identical DO-214AC (SMA) package, and matching operating temperature range (-55°C to 150°C). Both parts are manufactured by Vishay General Semiconductor - Diodes Division. The SA2M-E3/61T is the recommended substitute due to its active product status and improved electrical characteristics.

Q: What are the differences between SA2M-E3/61T and RS2MA?

A: The primary difference is current rating: SA2M-E3/61T is rated for 2 A while RS2MA is rated for 1.5 A. Both maintain the 1000 V voltage rating and DO-214AC package. RS2MA exhibits faster recovery time (500 ns versus 1.5 µs) and higher capacitance (50 pF versus 11 pF). RS2MA is manufactured by Taiwan Semiconductor Corporation, while SA2M-E3/61T is manufactured by Vishay.

Q: Can RS2MA be used in place of CSA2M-E3/H?

A: RS2MA can be used only in applications where the average rectified current does not exceed 1.5 A. The part meets voltage and package requirements but has a reduced current rating. The higher capacitance value may affect circuit performance in high-frequency applications. Confirm circuit current requirements before selecting this substitute.

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

A: The DO-214AC (SMA) package is a surface mount package with specific physical dimensions and pin configuration. All three parts (CSA2M-E3/H, SA2M-E3/61T, and RS2MA) use this identical package, ensuring mechanical and electrical compatibility on printed circuit boards without layout modifications.

Q: Why is CSA2M-E3/H classified as obsolete?

A: The CSA2M-E3/H is listed as obsolete by the manufacturer. This classification indicates that the part is no longer in active production. The SA2M-E3/61T serves as the active replacement from the same manufacturer, offering equivalent or improved performance characteristics.

Q: Are there compliance differences between the substitute parts?

A: Yes. SA2M-E3/61T and RS2MA are both ROHS3 compliant with MSL 1 rating. The original CSA2M-E3/H does not specify these compliance certifications. Both substitutes meet current environmental and moisture sensitivity standards for surface mount components.

Q: How do forward voltage differences affect circuit performance?

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. SA2M-E3/61T has a lower forward voltage (1.1 V @ 2 A) compared to CSA2M-E3/H (1.15 V @ 2 A), resulting in reduced power dissipation and improved efficiency. RS2MA has a higher forward voltage (1.3 V @ 1.5 A), which increases power dissipation but is specified at a lower current rating.

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

A: Reverse recovery time (trr) affects switching speed and switching losses in rectification circuits. SA2M-E3/61T (1.5 µs) and RS2MA (500 ns) both have faster recovery times than CSA2M-E3/H (2.1 µs). Faster recovery reduces switching losses and improves efficiency in high-frequency applications. RS2MA's significantly faster recovery time (500 ns) is characteristic of fast recovery diodes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message