DSEI120-06A Equivalent & Substitute Parts

Part Overview

The DSEI120-06A is a general-purpose fast recovery diode manufactured by IXYS, rated for 600 V DC reverse voltage and 77 A average rectified current in a through-hole TO-247AD package. This component is part of the FRED series and maintains Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific requirements within the specified parameter ranges.

Substiute Parts

DSEI120-06A

IXYSIn Stock: 1602DSEI120-06A Datasheet

Current PartRFQ

APT30D60BG

Microchip TechnologyIn Stock: 109521APT30D60BG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSEI120-06A is determined by strict adherence to the following electrical and mechanical parameters:

Voltage Compatibility: The substitute part must maintain a DC reverse voltage rating of 600 V or greater to ensure safe operation in the same circuit topology.

Current Rating: The substitute part current rating must be evaluated against application requirements. The DSEI120-06A is rated for 77 A average rectified current. Substitute parts with lower current ratings operate within reduced current envelopes and require circuit-level validation.

Recovery Characteristics: Both the main part and substitute must operate within the fast recovery classification (≤500 ns for currents >200 mA). Reverse recovery time specifications determine switching performance and thermal behavior.

Reverse Leakage: Leakage current at rated voltage must be within acceptable limits for the application. Higher leakage values increase standby power dissipation.

Package and Mounting: Both parts utilize through-hole TO-247-2 package configuration, ensuring mechanical and thermal interface compatibility.

Compliance Status: All parts maintain RoHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

Parameter Comparison

Engineering Selection Recommendations

DSEI120-06A (IXYS): This part is the primary selection for applications requiring 77 A average rectified current at 600 V. The FRED series designation indicates optimized fast recovery characteristics with 50 ns reverse recovery time, suitable for high-frequency switching applications. Active product status and full RoHS3 compliance confirm ongoing manufacturing support and regulatory alignment. Current inventory of 1559 pieces supports immediate deployment.

APT30D60BG (Microchip Technology): This substitute part operates at the same 600 V voltage rating with a reduced current capacity of 30 A. The extended operating temperature range (-55°C to 175°C) provides thermal margin beyond the primary part. Fast recovery classification and RoHS3 compliance maintain regulatory compliance. Higher reverse leakage current (250 µA versus 3 mA) and longer reverse recovery time (85 ns versus 50 ns) represent performance trade-offs. This part is suitable for applications where current requirements do not exceed 30 A and where the extended temperature range provides system-level benefits. Substantial inventory availability (109480 pieces) supports supply chain flexibility.

Selection between these parts is determined by application current requirements and thermal operating envelope specifications.

Frequently Asked Questions (FAQ)

Q: Can the APT30D60BG directly replace the DSEI120-06A in all applications?

A: Direct replacement is limited by current rating. The APT30D60BG is rated for 30 A average rectified current, while the DSEI120-06A is rated for 77 A. Substitution is valid only in applications where the actual circuit current does not exceed 30 A. Circuit-level analysis is required to confirm current envelope compatibility.

Q: What are the voltage compatibility requirements for substitution?

A: Both parts maintain identical 600 V DC reverse voltage ratings. Voltage compatibility is satisfied for any application designed for the DSEI120-06A.

Q: How do the recovery time specifications affect substitution decisions?

A: The DSEI120-06A exhibits 50 ns reverse recovery time, while the APT30D60BG exhibits 85 ns. Both parts meet fast recovery classification criteria (≤500 ns). In high-frequency switching applications, the shorter recovery time of the DSEI120-06A reduces switching losses. The APT30D60BG introduces additional recovery time, which may increase thermal dissipation in switching circuits.

Q: Are there package compatibility considerations?

A: Both parts utilize TO-247-2 through-hole packages. Mechanical and thermal interface compatibility is maintained. The DSEI120-06A uses TO-247AD supplier designation, while the APT30D60BG uses TO-247 [B] designation. Both conform to TO-247-2 standard package geometry and pin configuration.

Q: What is the significance of the reverse leakage current difference?

A: The DSEI120-06A exhibits 3 mA reverse leakage at 600 V, while the APT30D60BG exhibits 250 µA. Lower leakage current reduces standby power dissipation and heat generation in idle states. Applications with extended idle periods or strict power budget constraints benefit from the lower leakage specification of the DSEI120-06A.

Q: Do both parts meet the same regulatory compliance standards?

A: Both parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Regulatory compliance is equivalent for both parts in industrial and commercial applications.

Q: What is the impact of the extended temperature range in the APT30D60BG?

A: The APT30D60BG operates from -55°C to 175°C, compared to -40°C to 150°C for the DSEI120-06A. The extended range provides additional thermal margin for applications operating in extreme temperature environments. System-level thermal design determines whether this extended range provides practical benefit.