DSEP30-03A Equivalent & Substitute Parts

Part Overview

The DSEP30-03A is a general-purpose rectifier diode manufactured by IXYS in the HiPerFRED™ series. This component is rated for 300 V DC reverse voltage with a 30 A average rectified current capacity and features fast recovery characteristics with a 25 ns reverse recovery time. The device is housed in a TO-247AD through-hole package suitable for high-current applications requiring robust thermal management.

The DSEP30-03A carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

DSEP30-03A

IXYSIn Stock: 991DSEP30-03A Datasheet

Current PartRFQ

DSEP30-03AS

IXYSIn Stock: 835DSEP30-03AS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSEP30-03A is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 300 V
• Current - Average Rectified (Io): Must equal or exceed 30 A
• Voltage - Forward (Vf) (Max) @ If: Must not exceed 1.55 V @ 30 A
• Reverse Recovery Time (trr): Must not exceed 25 ns for fast recovery classification
• Current - Reverse Leakage @ Vr: Must not exceed 250 µA @ 300 V

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: TO-247-2 or equivalent TO-247AD supplier package
• Operating Temperature - Junction: Must support -55°C to 175°C range

Series Compatibility:

• HiPerFRED™ series technology classification

The DSEP30-03AS meets all electrical and mechanical substitution criteria and is classified as an active product, making it a direct equivalent for the obsolete DSEP30-03A.

Parameter Comparison

Engineering Selection Recommendations

DSEP30-03AS as Primary Substitute:

The DSEP30-03AS is the direct equivalent for the obsolete DSEP30-03A. Both components share identical electrical ratings across voltage, current, and forward voltage specifications. The DSEP30-03AS demonstrates improved performance with a reverse recovery time of 22 ns compared to 25 ns in the original part, representing a 12% reduction in switching losses.

The DSEP30-03AS carries an active product status, ensuring ongoing availability and supply chain support. The component is ROHS3 compliant, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status and EAR99 export classification.

The TO-247AD package designation confirms mechanical and thermal compatibility. The operating temperature range of the DSEP30-03AS supports the full -55°C to 175°C junction temperature requirement.

Compliance and Certification:

The DSEP30-03AS is the recommended replacement for new designs and production continuity. The active product status eliminates obsolescence risk associated with the DSEP30-03A. ROHS3 compliance ensures compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the DSEP30-03AS be used as a direct replacement for the DSEP30-03A in existing designs?

A: Yes. The DSEP30-03AS is electrically and mechanically equivalent to the DSEP30-03A. Both components share identical voltage ratings (300 V), current ratings (30 A), forward voltage characteristics (1.55 V @ 30 A), and package designation (TO-247AD). The DSEP30-03AS features improved reverse recovery time (22 ns versus 25 ns), which reduces switching losses without affecting circuit compatibility.

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

A: The DSEP30-03AS exhibits a 22 ns reverse recovery time compared to 25 ns in the DSEP30-03A. This 3 ns reduction represents faster switching behavior and lower reverse recovery charge. In high-frequency switching applications, this improvement reduces energy dissipation and heat generation. Both values remain within the fast recovery classification (≤ 500 ns).

Q: Are there package differences between the DSEP30-03A and DSEP30-03AS?

A: Both components use the TO-247AD supplier package designation. The DSEP30-03A specifies TO-247-2 case style, while the DSEP30-03AS specifies TO-3P-3 Full Pack. These designations refer to the same physical package footprint and thermal characteristics suitable for through-hole mounting. Pin configuration and thermal interface remain compatible.

Q: What is the product status difference, and why does it matter?

A: The DSEP30-03A is classified as obsolete, indicating discontinued production and limited availability. The DSEP30-03AS is classified as active, ensuring ongoing manufacturing, supply chain availability, and technical support. For new designs or production continuity, the active DSEP30-03AS is the appropriate selection.

Q: Does the DSEP30-03AS meet current environmental compliance standards?

A: Yes. The DSEP30-03AS is ROHS3 compliant and maintains REACH Unaffected status. Both components carry EAR99 export classification. The DSEP30-03AS meets current environmental and regulatory requirements for manufacturing and distribution.

Q: Are the reverse leakage current specifications identical?

A: Yes. Both the DSEP30-03A and DSEP30-03AS specify 250 µA reverse leakage current at 300 V. This parameter remains constant across both components, ensuring equivalent behavior in reverse-biased conditions.

Q: What is the thermal management capability of these components?

A: Both components support an operating junction temperature range of -55°C to 175°C. The TO-247AD package provides robust thermal coupling to external heat sinks through the mounting tab. Thermal performance is equivalent between the two parts.