CS2G-E3/I Equivalent & Substitute Parts

Part Overview

The CS2G-E3/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 400 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, necessitating identification of active equivalent components for continued system design and procurement. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while supporting equivalent mechanical packaging and mounting requirements.

Substiute Parts

CS2G-E3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1392CS2G-E3/I Datasheet

Current PartRFQ

S2G-E3/5BT

Vishay General Semiconductor - Diodes DivisionIn Stock: 7517S2G-E3/5BT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS2G-E3/I is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute part must maintain a DC reverse voltage rating of 400 V or greater to ensure equivalent blocking capability under maximum reverse bias conditions.

Current Rating: The substitute part must support the average rectified current requirement. The CS2G-E3/I is rated for 1.6 A; substitute parts rated at 1.5 A or higher satisfy this criterion within standard rectifier design margins.

Forward Voltage Characteristics: Forward voltage drop must remain within acceptable limits for circuit operation. The CS2G-E3/I specifies 1.15 V maximum at 2 A; substitute parts with equivalent or lower forward voltage characteristics maintain thermal and efficiency performance.

Recovery Characteristics: Reverse recovery time (trr) and recovery speed classification determine switching behavior. The CS2G-E3/I specifies standard recovery with trr of 2.1 µs; substitute parts with comparable or faster recovery characteristics are acceptable.

Reverse Leakage Current: Leakage at rated reverse voltage must remain within acceptable limits. The CS2G-E3/I specifies 5 µA maximum at 400 V; lower leakage values in substitute parts are acceptable.

Package and Mounting: The substitute part must use the DO-214AA (SMB) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Thermal Range: Operating temperature range must encompass the application environment. The CS2G-E3/I specifies -55°C to 150°C junction temperature; equivalent or wider ranges are acceptable.

Compliance: RoHS3 compliance and REACH unaffected status must be maintained for regulatory and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The S2G-E3/5BT is a direct substitute for the obsolete CS2G-E3/I based on the following criteria:

Electrical Equivalence: Both parts maintain identical 400 V reverse voltage ratings and equivalent forward voltage characteristics. The S2G-E3/5BT is rated for 1.5 A average rectified current compared to the CS2G-E3/I's 1.6 A rating. This 0.1 A difference is acceptable for applications where the circuit design does not require the full 1.6 A capacity of the original part. For applications requiring the full 1.6 A rating, alternative parts with higher current ratings must be evaluated.

Performance Characteristics: The S2G-E3/5BT exhibits superior performance in reverse recovery time (2 µs versus 2.1 µs) and reverse leakage current (1 µA versus 5 µA), both of which are beneficial for circuit reliability and efficiency.

Mechanical Compatibility: Both parts use the DO-214AA (SMB) surface mount package, ensuring direct PCB compatibility without layout modifications.

Regulatory and Supply Chain Status: The S2G-E3/5BT is actively manufactured and maintains ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory continuity. The CS2G-E3/I's obsolete status makes the S2G-E3/5BT the appropriate active alternative.

Packaging Format: The S2G-E3/5BT is supplied in Tape & Reel (TR) format, compared to the CS2G-E3/I's Cut Tape (CT) & Digi-Reel® format. Both formats are standard for surface mount assembly and do not affect component functionality.

Frequently Asked Questions (FAQ)

Q: Can the S2G-E3/5BT directly replace the CS2G-E3/I in all applications?

A: The S2G-E3/5BT is a direct substitute for applications where the circuit design does not require the full 1.6 A average rectified current rating of the CS2G-E3/I. The S2G-E3/5BT is rated for 1.5 A. If the application circuit requires sustained operation at currents above 1.5 A, alternative parts with higher current ratings must be selected. For applications operating at or below 1.5 A, the S2G-E3/5BT provides equivalent or superior performance.

Q: Are there any differences in forward voltage drop between these parts?

A: Both parts specify a maximum forward voltage of 1.15 V. The CS2G-E3/I specifies this value at 2 A, while the S2G-E3/5BT specifies it at 1.5 A. For circuit operation within the S2G-E3/5BT's current rating, forward voltage characteristics are equivalent.

Q: What is the significance of the faster reverse recovery time in the S2G-E3/5BT?

A: The S2G-E3/5BT exhibits a reverse recovery time of 2 µs compared to the CS2G-E3/I's 2.1 µs. Faster recovery time reduces switching losses and improves efficiency in rectification circuits. This represents an improvement over the original part specification.

Q: Does the lower reverse leakage current in the S2G-E3/5BT affect circuit operation?

A: The S2G-E3/5BT specifies 1 µA reverse leakage at 400 V, compared to the CS2G-E3/I's 5 µA. Lower reverse leakage current improves circuit performance by reducing standby power consumption and improving blocking efficiency. This is a beneficial characteristic.

Q: Are the package dimensions identical between these parts?

A: Both parts use the DO-214AA (SMB) surface mount package. Package dimensions, lead spacing, and PCB footprints are identical, ensuring direct mechanical compatibility without layout modifications.

Q: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel are different supply formats for the same component package. Cut Tape is supplied in smaller quantities on cut strips, while Tape & Reel is supplied on continuous reels for automated assembly. Both formats contain components in the identical DO-214AA (SMB) package. The packaging format does not affect component electrical or mechanical characteristics.

Q: Are both parts RoHS3 compliant?

A: Yes, both the CS2G-E3/I and S2G-E3/5BT are ROHS3 compliant and REACH unaffected, ensuring regulatory compliance for current and future applications.

Q: What is the operating temperature range for both parts?

A: Both parts operate across a junction temperature range of -55°C to 150°C, providing equivalent thermal performance across industrial and commercial temperature environments.