CS2M-E3/I Equivalent & Substitute Parts

Part Overview

The CS2M-E3/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 1000 V DC reverse voltage and 1.6 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 S2M-E3/5BT provides functional equivalence while maintaining active product status and improved availability.

Substiute Parts

CS2M-E3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 969CS2M-E3/I Datasheet

Current PartRFQ

S2M-E3/5BT

Vishay General Semiconductor - Diodes DivisionIn Stock: 26084S2M-E3/5BT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS2M-E3/I with the S2M-E3/5BT is based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 1000 V (identical)
• Package / Case: DO-214AA, SMB (identical)
• Mounting Type: Surface Mount (identical)
• Operating Temperature - Junction: -55°C to 150°C (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (identical)
• Speed Classification: Standard Recovery >500ns, >200mA (Io) (identical)

Variant Parameters:

• Current - Average Rectified (Io): 1.6 A (CS2M-E3/I) vs. 1.5 A (S2M-E3/5BT)
• Reverse Recovery Time (trr): 2.1 µs (CS2M-E3/I) vs. 2 µs (S2M-E3/5BT)
• Current - Reverse Leakage @ Vr: 5 µA (CS2M-E3/I) vs. 1 µA (S2M-E3/5BT)
• Capacitance @ Vr, F: 12 pF (CS2M-E3/I) vs. 16 pF (S2M-E3/5BT)

The S2M-E3/5BT operates within the same voltage and temperature envelope with equivalent forward voltage characteristics, making it suitable for applications where the 1.5 A rating satisfies circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The S2M-E3/5BT is the designated substitute for the obsolete CS2M-E3/I. Selection of this substitute is supported by the following factors:

Product Status: The S2M-E3/5BT maintains active product status with significantly higher inventory availability (26,000 pcs in stock versus 902 pcs for the main part), ensuring long-term procurement viability.

Regulatory Compliance: Both parts maintain identical ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements without modification to design documentation.

Electrical Compatibility: The substitute part operates within the same 1000 V reverse voltage rating and temperature range (-55°C to 150°C). Forward voltage characteristics remain equivalent at 1.15 V maximum, supporting direct circuit substitution in applications where the 1.5 A average rectified current rating meets or exceeds circuit requirements.

Package Equivalence: Identical DO-214AA (SMB) surface mount packaging ensures mechanical and thermal compatibility without PCB layout modification.

Packaging Format: The S2M-E3/5BT is supplied in Tape & Reel (TR) format, standard for high-volume manufacturing operations.

Frequently Asked Questions (FAQ)

Q: Can the S2M-E3/5BT directly replace the CS2M-E3/I in existing designs?

A: Direct substitution is valid for applications where the circuit current requirement does not exceed 1.5 A. The S2M-E3/5BT is rated for 1.5 A average rectified current compared to the CS2M-E3/I at 1.6 A. Verify that the maximum circuit current remains within the 1.5 A specification of the substitute part.

Q: Are there package or mounting differences between these parts?

A: No. Both parts use identical DO-214AA (SMB) surface mount packaging. PCB footprints, solder pad dimensions, and thermal characteristics are equivalent. No layout modifications are required.

Q: What is the significance of the different reverse recovery times?

A: The S2M-E3/5BT exhibits a reverse recovery time of 2 µs compared to 2.1 µs for the CS2M-E3/I. This represents a minor improvement in switching speed and is not a limiting factor for substitution in standard rectification applications.

Q: How do the reverse leakage current specifications compare?

A: The S2M-E3/5BT demonstrates lower reverse leakage current at 1 µA versus 5 µA for the CS2M-E3/I, both measured at 1000 V. Lower leakage current is beneficial for circuit performance and does not restrict substitution.

Q: Are regulatory certifications maintained with the substitute part?

A: Yes. The S2M-E3/5BT maintains ROHS3 compliance and REACH unaffected status identical to the CS2M-E3/I. No regulatory documentation updates are required for substitution.

Q: What is the difference in packaging format between the two parts?

A: The CS2M-E3/I is supplied in standard packaging format, while the S2M-E3/5BT is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly operations and does not affect component electrical or mechanical performance.

Q: Is the substitute part suitable for high-temperature applications?

A: Yes. The S2M-E3/5BT maintains the same operating temperature range of -55°C to 150°C junction temperature as the CS2M-E3/I, supporting equivalent thermal performance in high-temperature environments.