DGS13-025CS Equivalent & Substitute Parts

Part Overview

The DGS13-025CS is a Schottky diode manufactured by IXYS, rated for 250 V DC reverse voltage and 21 A average rectified current in a surface mount TO-252AA package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. Substitute parts must maintain compatibility across electrical ratings, thermal characteristics, and mechanical packaging to ensure direct replacement capability.

Substiute Parts

DGS13-025CS

IXYSIn Stock: 1129DGS13-025CS Datasheet

Current PartRFQ

SDURD1530

SMC Diode SolutionsIn Stock: 905SDURD1530 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DGS13-025CS are identified based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) rating must equal or exceed 250 V
• Current - Average Rectified (Io) rating must equal or exceed 21 A
• Operating temperature range must encompass -55°C to 175°C
• Package / Case must be TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting type must be Surface Mount

Functional Characteristics:

• Speed classification: Fast Recovery (≤ 500 ns, > 200 mA)
• Reverse recovery time and forward voltage characteristics determine switching performance

The SDURD1530 from SMC Diode Solutions meets the mechanical packaging requirements and thermal operating range. However, electrical parameter deviations exist and must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The DGS13-025CS is classified as obsolete, while the SDURD1530 maintains active product status with ROHS3 compliance. Active status ensures continued availability and manufacturing support.

Electrical Parameter Deviations: The SDURD1530 exhibits the following differences from the DGS13-025CS:

• Current - Average Rectified (Io): 15 A versus 21 A (27% reduction)
• Voltage - DC Reverse (Vr): 300 V versus 250 V (20% increase)
• Reverse Recovery Time (trr): 45 ns versus 18 ns (2.5× increase)
• Technology: Standard diode versus Schottky

Compliance and Certifications: The SDURD1530 carries ROHS3 compliance and REACH Affected status, indicating adherence to current environmental and regulatory standards. The DGS13-025CS is REACH Unaffected, reflecting its obsolete classification.

Substitution Feasibility: Direct substitution of the SDURD1530 for the DGS13-025CS is limited by the reduced current rating (15 A versus 21 A). Applications requiring the full 21 A capacity cannot use this substitute without circuit redesign or parallel configuration. The higher reverse voltage rating (300 V) provides margin for overvoltage conditions. The increased reverse recovery time affects switching frequency performance in high-speed applications.

Frequently Asked Questions (FAQ)

Q: Can the SDURD1530 directly replace the DGS13-025CS in all applications?

A: Direct replacement is not universal. The SDURD1530 is rated for 15 A average rectified current, compared to the DGS13-025CS rating of 21 A. Applications operating at or near 21 A require verification that the reduced current rating is acceptable for the specific circuit design. The higher reverse voltage rating (300 V) of the SDURD1530 provides compatibility for circuits designed around the 250 V specification.

Q: What are the package compatibility considerations?

A: Both the DGS13-025CS and SDURD1530 use the TO-252-3 DPAK package with identical pinout (2 Leads + Tab, SC-63). Physical footprint and PCB layout compatibility are maintained. Supplier device package designations differ (TO-252AA versus DPAK), but both reference the same industry-standard package.

Q: How do the diode technologies differ?

A: The DGS13-025CS is a Schottky diode, while the SDURD1530 is a standard rectifier diode. Schottky diodes exhibit lower forward voltage drop (1.7 V @ 7.5 A versus 1.26 V @ 15 A) and faster switching characteristics (18 ns reverse recovery time versus 45 ns). Standard diodes provide lower reverse leakage current (10 µA @ 300 V versus 250 µA @ 250 V).

Q: What is the significance of the reverse recovery time difference?

A: The DGS13-025CS exhibits 18 ns reverse recovery time, while the SDURD1530 exhibits 45 ns. This 2.5× difference affects switching frequency performance. Applications operating at high switching frequencies benefit from the faster recovery time of the DGS13-025CS. The SDURD1530 is suitable for lower frequency applications where reverse recovery time is less critical.

Q: Are there compliance or regulatory differences?

A: The SDURD1530 is ROHS3 compliant and REACH Affected, indicating compliance with current environmental regulations. The DGS13-025CS is REACH Unaffected, reflecting its obsolete status. New designs should prioritize components with active compliance certifications.

Q: What is the impact of the current rating reduction?

A: The SDURD1530 current rating of 15 A represents a 28.6% reduction from the DGS13-025CS rating of 21 A. Circuits designed for 21 A operation require thermal and electrical analysis to confirm operation within the reduced rating. Parallel configuration of multiple SDURD1530 devices can achieve higher current capacity if required.