CS240650 Equivalent & Substitute Parts

Part Overview

The CS240650 is a general-purpose diode rated for 600V DC reverse voltage and 50A average rectified current, manufactured by Powerex Inc. in a POW-R-BLOK™ Module chassis mount package. This component is classified as obsolete, indicating that direct procurement from the original manufacturer may be limited or unavailable. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this performance class.

Substiute Parts

CS240650

Powerex Inc.In Stock: 3377CS240650 Datasheet

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VS-T70HFL60S02

Vishay General Semiconductor - Diodes DivisionIn Stock: 936VS-T70HFL60S02 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS240650 is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: The substitute part must maintain a DC reverse voltage rating of 600V or higher to ensure safe operation within the original design envelope.

Current Rating: The substitute part must support an average rectified current of 50A or greater. Parts with higher current ratings (such as 70A) provide additional design margin and are acceptable for direct substitution.

Mounting Configuration: The substitute part must be chassis mount to maintain mechanical compatibility with the original installation.

Recovery Characteristics: The substitute part may operate at either standard or fast recovery speeds. Fast recovery (≤500ns) is electrically compatible with standard recovery (>500ns) applications, as it represents improved performance without introducing incompatibility.

Reverse Leakage Current: The substitute part must maintain reverse leakage current specifications within acceptable limits for the application. Higher leakage values are acceptable provided they do not exceed application-specific requirements.

The VS-T70HFL60S02 meets all substitution criteria through equivalent voltage rating, higher current capacity, compatible mounting type, and improved recovery characteristics.

Parameter Comparison

Engineering Selection Recommendations

The VS-T70HFL60S02 is a valid electrical substitute for the CS240650 based on the following factors:

Electrical Compatibility: Both parts share identical 600V DC reverse voltage ratings and meet or exceed the 50A current requirement. The substitute's 70A rating provides additional operational margin.

Performance Improvement: The VS-T70HFL60S02 demonstrates superior recovery characteristics (200ns versus 800ns), resulting in reduced switching losses and improved efficiency in rectification applications.

Compliance Status: The substitute part is ROHS3 compliant and currently in active production, ensuring long-term availability and regulatory alignment. The original CS240650 is obsolete and RoHS non-compliant.

Mechanical Consideration: Both parts are chassis mount configurations. However, the package change from POW-R-BLOK™ Module to D-55 T-Module requires mechanical re-evaluation of the mounting interface and thermal management design.

Supply Chain: The substitute part has confirmed inventory availability (890 units), whereas the original part is obsolete with limited procurement options.

Frequently Asked Questions (FAQ)

Q: Can the VS-T70HFL60S02 directly replace the CS240650 without circuit modification?

A: Electrical substitution is valid. The 600V rating, 70A current capacity, and chassis mount configuration are compatible. However, the package change from POW-R-BLOK™ Module to D-55 T-Module requires mechanical re-evaluation of the mounting interface, thermal dissipation path, and PCB layout.

Q: What is the significance of the faster recovery time in the substitute part?

A: The VS-T70HFL60S02 operates at 200ns recovery time compared to 800ns in the original part. This represents fast recovery performance and results in lower switching losses, reduced heat generation, and improved overall rectifier efficiency. This is a performance enhancement, not a limitation.

Q: Are there any electrical performance differences that would affect circuit operation?

A: Both parts maintain 600V reverse voltage rating and support the required 50A current. The substitute's higher 70A rating and lower reverse leakage current (100µA versus 10mA) represent improved electrical characteristics. Forward voltage drop data for the substitute is not provided in the specification; this parameter should be verified against application requirements if critical to thermal design.

Q: What does the package designation change mean for integration?

A: The original CS240650 uses POW-R-BLOK™ Module packaging, while the VS-T70HFL60S02 uses D-55 T-Module packaging. These are different physical form factors requiring different mounting hardware, thermal interface materials, and PCB footprints. Mechanical compatibility must be confirmed during design integration.

Q: Is the substitute part suitable for new designs?

A: Yes. The VS-T70HFL60S02 is in active production status with ROHS3 compliance, making it suitable for new designs. The original CS240650 is obsolete and should not be specified for new applications.

Q: How does the RoHS compliance difference affect part selection?

A: The CS240650 is RoHS non-compliant, while the VS-T70HFL60S02 is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the substitute part is the only viable option.