CSA2K-E3/H Equivalent & Substitute Parts

Part Overview

The CSA2K-E3/H is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 800 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as obsolete, making identification of active equivalent components necessary for ongoing design support and procurement continuity. The substitute part SA2K-E3/61T provides functional equivalence with improved electrical characteristics and active product status.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.15	V @ 2 A
Reverse Recovery Time (trr)	2.1	µs
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Capacitance @ Vr, F	11	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the CSA2K-E3/H with SA2K-E3/61T is based on equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 800 V (identical)
Current - Average Rectified (Io): 2 A (identical)
Package / Case: DO-214AC, SMA (identical)
Mounting Type: Surface Mount (identical)
Operating Temperature - Junction: -55°C to 150°C (identical)

Performance Characteristics: Both parts operate within the Standard Recovery speed classification (>500 ns, >200 mA Io) and maintain identical capacitance specifications. The substitute part demonstrates improved forward voltage characteristics and reduced reverse recovery time, representing a performance enhancement while maintaining full electrical compatibility.

Parameter Comparison

Parameter	CSA2K-E3/H (Main Part)	SA2K-E3/61T (Substitute)	Unit
Voltage - DC Reverse (Vr) (Max)	800	800	V
Current - Average Rectified (Io)	2	2	A
Voltage - Forward (Vf) (Max) @ If	1.15	1.1	V @ 2 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	2.1	1.5	µs
Current - Reverse Leakage @ Vr	5	3	µA @ 800 V
Capacitance @ Vr, F	11	11	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	-55 to 150	°C
Mounting Type	Surface Mount	Surface Mount	—

Engineering Selection Recommendations

Product Status Consideration: The CSA2K-E3/H is classified as obsolete. The SA2K-E3/61T is an active product, ensuring long-term availability and manufacturing support. For new designs or ongoing production requiring component replenishment, SA2K-E3/61T is the appropriate selection.

Compliance and Certifications: SA2K-E3/61T carries ROHS3 compliance and Moisture Sensitivity Level (MSL) 1 (Unlimited) designation, providing enhanced environmental and handling specifications. Both parts maintain REACH Unaffected status and EAR99 export classification.

Electrical Performance: SA2K-E3/61T demonstrates superior electrical characteristics with reduced forward voltage (1.1 V versus 1.15 V at 2 A) and lower reverse recovery time (1.5 µs versus 2.1 µs), resulting in decreased power dissipation and improved switching performance. Reverse leakage current is also reduced (3 µA versus 5 µA at 800 V).

Packaging and Inventory: SA2K-E3/61T is supplied in Tape & Reel (TR) packaging with significantly higher inventory availability (28,500 pieces versus 964 pieces), supporting volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can SA2K-E3/61T directly replace CSA2K-E3/H in existing designs?

A: Yes. Both parts share identical voltage ratings (800 V), current ratings (2 A), package type (DO-214AC, SMA), and operating temperature range (-55°C to 150°C). Pin-to-pin and footprint compatibility is maintained. SA2K-E3/61T offers improved electrical performance characteristics.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete versus active), forward voltage (1.15 V versus 1.1 V at 2 A), reverse recovery time (2.1 µs versus 1.5 µs), reverse leakage current (5 µA versus 3 µA at 800 V), and compliance certifications (ROHS3 for the substitute). Electrical equivalence is maintained across all critical parameters.

Q: Does packaging format affect substitution?

A: CSA2K-E3/H is supplied in standard packaging, while SA2K-E3/61T is supplied in Tape & Reel (TR) format. Both use identical DO-214AC (SMA) component packages. Tape & Reel packaging is standard for automated assembly processes and does not affect electrical or mechanical compatibility.

Q: Are there any thermal or environmental considerations?

A: Both parts operate across the identical junction temperature range of -55°C to 150°C. SA2K-E3/61T includes MSL 1 (Unlimited) designation, indicating superior moisture handling characteristics. No additional thermal management modifications are required for substitution.

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

A: The reduced reverse recovery time in SA2K-E3/61T (1.5 µs versus 2.1 µs) results in faster switching transitions and lower switching losses. This improvement is beneficial in high-frequency rectification applications and power conversion circuits, though both parts remain classified as Standard Recovery devices.

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