Equivalent & Substitute Parts: CS2J-E3/H

Part Overview

The CS2J-E3/H is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as obsolete, making identification of active equivalent parts necessary for ongoing design support and procurement continuity. The substitute part S2J-E3/52T provides functional compatibility within specified electrical and mechanical parameters while maintaining active product status.

Key Parameters

Parameter	CS2J-E3/H
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 2 A
Reverse Recovery Time (trr)	2.1 µs
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Package / Case	DO-214AA, SMB
Operating Temperature - Junction	-55°C ~ 150°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the CS2J-E3/H with the S2J-E3/52T is determined by the following criteria:

Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V (identical)
Package / Case: DO-214AA, SMB (identical)
Operating Temperature - Junction: -55°C ~ 150°C (identical)
Mounting Type: Surface Mount (identical)
Technology: Standard (identical)
Speed Classification: Standard Recovery >500ns, > 200mA (Io) (identical)

Differing Parameters:

Current - Average Rectified (Io): 2 A (CS2J-E3/H) vs. 1.5 A (S2J-E3/52T)
Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 2 A (CS2J-E3/H) vs. 1.15 V @ 1.5 A (S2J-E3/52T)
Reverse Recovery Time (trr): 2.1 µs (CS2J-E3/H) vs. 2 µs (S2J-E3/52T)
Current - Reverse Leakage @ Vr: 5 µA @ 600 V (CS2J-E3/H) vs. 1 µA @ 600 V (S2J-E3/52T)
Product Status: Obsolete (CS2J-E3/H) vs. Active (S2J-E3/52T)

The S2J-E3/52T operates at a lower current rating (1.5 A vs. 2 A) and exhibits improved reverse leakage characteristics. Substitution is valid for applications where the circuit current requirement does not exceed 1.5 A.

Parameter Comparison

Parameter	CS2J-E3/H	S2J-E3/52T	Compatibility
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	Match
Current - Average Rectified (Io)	2 A	1.5 A	S2J-E3/52T rated lower
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 2 A	1.15 V @ 1.5 A	Comparable at respective ratings
Reverse Recovery Time (trr)	2.1 µs	2 µs	S2J-E3/52T faster
Current - Reverse Leakage @ Vr	5 µA @ 600 V	1 µA @ 600 V	S2J-E3/52T lower leakage
Package / Case	DO-214AA, SMB	DO-214AA, SMB	Match
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	Match
Product Status	Obsolete	Active	S2J-E3/52T actively supported

Engineering Selection Recommendations

The S2J-E3/52T is the designated manufacturer substitute for the obsolete CS2J-E3/H. Selection of this substitute is appropriate for the following conditions:

Electrical Compatibility: The S2J-E3/52T maintains identical reverse voltage rating (600 V) and package form factor (DO-214AA, SMB), ensuring direct mechanical and thermal compatibility. The lower current rating (1.5 A vs. 2 A) requires verification that circuit operating current does not exceed 1.5 A under all conditions.

Product Status and Support: The S2J-E3/52T carries Active product status with RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, providing long-term availability and supply chain stability. The CS2J-E3/H, classified as Obsolete, is subject to discontinuation and limited future procurement.

Compliance and Certifications: Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The S2J-E3/52T includes explicit RoHS3 compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the S2J-E3/52T directly replace the CS2J-E3/H in all applications?

A: Direct replacement is valid only for applications where the average rectified current does not exceed 1.5 A. The S2J-E3/52T is rated for 1.5 A maximum, compared to the CS2J-E3/H rating of 2 A. Circuit analysis must confirm that operating current remains within the 1.5 A limit under all load conditions.

Q: Are the package dimensions identical between these parts?

A: Both parts use the DO-214AA (SMB) surface mount package with identical mechanical specifications. PCB footprints and thermal characteristics are equivalent.

Q: What is the significance of the lower reverse leakage current in the S2J-E3/52T?

A: The S2J-E3/52T exhibits 1 µA reverse leakage at 600 V compared to 5 µA for the CS2J-E3/H. This represents improved leakage performance and may provide benefits in high-impedance or precision analog circuits, though both values are within standard rectifier diode specifications.

Q: Does the faster reverse recovery time of the S2J-E3/52T affect circuit performance?

A: The S2J-E3/52T reverse recovery time is 2 µs compared to 2.1 µs for the CS2J-E3/H. This marginal difference (0.1 µs) is negligible for standard rectification applications and does not introduce compatibility concerns.

Q: What is the moisture sensitivity level of the S2J-E3/52T?

A: The S2J-E3/52T carries MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

Q: Are there any temperature operating range differences?

A: Both parts operate across the identical junction temperature range of -55°C to 150°C. Thermal performance is equivalent.

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