CS2G-E3/H Equivalent & Substitute Parts

Part Overview

The CS2G-E3/H is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 400 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity. The substitute part S2G-E3/52T provides functional equivalence within specified electrical and mechanical parameters while maintaining active product status.

Substiute Parts

CS2G-E3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1026CS2G-E3/H Datasheet

Current PartRFQ

S2G-E3/52T

Vishay General Semiconductor - Diodes DivisionIn Stock: 140266S2G-E3/52T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS2G-E3/H with the S2G-E3/52T is based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 400 V (identical)
• Package / Case: DO-214AA, SMB (identical)
• Mounting Type: Surface Mount (identical)
• Operating Temperature - Junction: -55°C to 150°C (identical)
• Technology: Standard (identical)
• Speed Classification: Standard Recovery >500ns, > 200mA (Io) (identical)

Differing Parameters:

• Current - Average Rectified (Io): 2 A (main part) vs. 1.5 A (substitute)
• Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 2 A (main part) vs. 1.15 V @ 1.5 A (substitute)
• Reverse Recovery Time (trr): 2.1 µs (main part) vs. 2 µs (substitute)
• Current - Reverse Leakage @ Vr: 5 µA @ 400 V (main part) vs. 1 µA @ 400 V (substitute)

The S2G-E3/52T operates within the same voltage class and package footprint, enabling direct mechanical and electrical substitution in applications where the 1.5 A current rating is sufficient for circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The S2G-E3/52T is the designated substitute for the obsolete CS2G-E3/H. Selection of this substitute is appropriate based on the following factors:

Product Status: The CS2G-E3/H is classified as obsolete, while the S2G-E3/52T maintains active product status, ensuring long-term availability and supply chain continuity.

Compliance and Certifications: The S2G-E3/52T is RoHS3 compliant and carries Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating superior environmental compliance and handling characteristics compared to the main part. Both parts are REACH Unaffected and classified under ECCN EAR99.

Electrical Compatibility: Both parts operate at 400 V DC reverse voltage and share identical package, mounting type, and operating temperature range. The substitute part exhibits lower reverse leakage current (1 µA vs. 5 µA) and marginally faster reverse recovery time (2 µs vs. 2.1 µs).

Current Rating Consideration: The substitute part is rated for 1.5 A average rectified current compared to the main part's 2 A rating. Circuit designs must confirm that the 1.5 A rating is sufficient for application requirements. If the circuit demands the full 2 A capacity, alternative substitutes within the same voltage class should be evaluated.

Packaging: Both parts use identical DO-214AA (SMB) surface mount packaging, enabling direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the S2G-E3/52T directly replace the CS2G-E3/H in all applications?

A: Direct replacement is possible from a mechanical and voltage standpoint, as both parts use the DO-214AA package and operate at 400 V. However, the substitute part is rated for 1.5 A average rectified current versus the main part's 2 A rating. Substitution is valid only if the circuit design operates at or below 1.5 A. If the application requires the full 2 A capacity, alternative parts must be evaluated.

Q: What are the key electrical differences between these parts?

A: The primary difference is the current rating: 2 A (CS2G-E3/H) versus 1.5 A (S2G-E3/52T). Secondary differences include forward voltage drop (1.2 V @ 2 A vs. 1.15 V @ 1.5 A), reverse recovery time (2.1 µs vs. 2 µs), and reverse leakage current (5 µA vs. 1 µA). All other parameters, including reverse voltage, package, and temperature range, are identical.

Q: Are there packaging differences between the main part and substitute?

A: No. Both parts use the DO-214AA (SMB) surface mount package. The main part is supplied in standard packaging, while the substitute is supplied in Cut Tape (CT) format. Both are compatible with standard PCB assembly processes.

Q: What compliance advantages does the S2G-E3/52T offer?

A: The S2G-E3/52T is RoHS3 compliant and carries Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating unrestricted shelf life and handling. Both parts are REACH Unaffected and classified under ECCN EAR99 for export purposes.

Q: Why is the CS2G-E3/H obsolete?

A: The CS2G-E3/H is classified as obsolete by the manufacturer. The S2G-E3/52T represents the active product line continuation within the same voltage and package class, ensuring ongoing availability and support.

Q: How does reverse leakage current affect circuit performance?

A: The substitute part exhibits lower reverse leakage current (1 µA vs. 5 µA at 400 V). Lower leakage current reduces standby power dissipation and improves circuit efficiency, particularly in high-impedance applications. This represents an improvement over the main part.

Q: Is the reverse recovery time difference significant?

A: The reverse recovery time difference (2.1 µs vs. 2 µs) is minimal and both parts are classified as standard recovery devices. This difference is negligible for most general-purpose rectification applications operating at standard switching frequencies.