DGS10-018A Equivalent & Substitute Parts

Part Overview

The DGS10-018A is a Schottky diode rated for 180 V DC reverse voltage and 15 A average rectified current in a Through Hole TO-220AC package. This component is classified as Obsolete, making identification of suitable substitute parts necessary for ongoing design support and procurement continuity. The part features fast recovery characteristics with a maximum forward voltage of 1.1 V at 5 A and operates across a junction temperature range of -55°C to 175°C.

Substiute Parts

DGS10-018A

IXYSIn Stock: 937DGS10-018A Datasheet

Current PartRFQ

STTH1502D

STMicroelectronicsIn Stock: 2749STTH1502D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DGS10-018A is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Current rating: 15 A average rectified current
• Package type: TO-220-2 (TO-220AC) Through Hole configuration
• Voltage rating: Minimum 180 V DC reverse voltage
• Speed classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Operating temperature range: Support for -55°C to 175°C junction temperature

The STTH1502D from STMicroelectronics meets these substitution criteria. It provides a 200 V reverse voltage rating (exceeding the 180 V requirement), maintains the 15 A current specification, operates in the identical TO-220AC package, and delivers fast recovery performance with a 36 ns reverse recovery time. The substitute part is classified as Active, ensuring long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

The STTH1502D is a direct substitute for the obsolete DGS10-018A based on the following factors:

Electrical Compatibility: The STTH1502D exceeds the reverse voltage requirement (200 V vs. 180 V), maintains identical current handling (15 A), and delivers equivalent forward voltage characteristics. The reverse leakage current is significantly lower at 10 µA compared to 1.3 mA, indicating improved performance in this parameter.

Package and Thermal Compatibility: Both components utilize the TO-220-2 package configuration with identical mounting characteristics. Maximum junction temperature ratings are equivalent at 175°C, ensuring thermal design compatibility.

Product Status and Compliance: The STTH1502D is classified as Active, providing assured long-term availability and supply chain continuity. Both parts maintain REACH Unaffected status and EAR99 ECCN classification. The substitute part is RoHS3 Compliant, meeting current regulatory requirements.

Moisture Sensitivity: Both components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can the STTH1502D directly replace the DGS10-018A in existing designs?

A: Yes. The STTH1502D is electrically and mechanically compatible. It provides higher reverse voltage rating (200 V vs. 180 V), identical current capacity (15 A), matching package configuration (TO-220AC), and equivalent thermal operating range. No circuit modifications are required.

Q: What is the significance of the higher 200 V rating on the STTH1502D?

A: The 200 V reverse voltage rating on the STTH1502D provides additional design margin beyond the 180 V requirement of the DGS10-018A. This does not create incompatibility; rather, it ensures the substitute part operates safely within the original circuit specifications with increased voltage headroom.

Q: How do the reverse leakage current specifications compare?

A: The DGS10-018A specifies 1.3 mA reverse leakage at 180 V, while the STTH1502D specifies 10 µA at 200 V. The STTH1502D exhibits substantially lower leakage current, which is advantageous for circuit performance and power efficiency.

Q: Are there packaging differences between these components?

A: No. Both the DGS10-018A and STTH1502D use the TO-220-2 package configuration with TO-220AC supplier device packaging. They are mechanically and thermally interchangeable in Through Hole applications.

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

A: The DGS10-018A is Obsolete, indicating discontinued production and limited availability. The STTH1502D is Active, ensuring ongoing manufacturing, consistent supply, and long-term design support. For new designs or production continuity, the Active status of the substitute part is advantageous.

Q: Are regulatory and compliance certifications equivalent?

A: Yes. Both components maintain REACH Unaffected status, EAR99 ECCN classification, and MSL 1 (Unlimited) moisture sensitivity rating. The STTH1502D additionally carries RoHS3 Compliance certification, meeting current environmental standards.

Q: What is the reverse recovery time specification, and how does it affect substitution?

A: The STTH1502D specifies a reverse recovery time (trr) of 36 ns, confirming fast recovery diode performance. Both components meet the Fast Recovery classification (≤ 500 ns, > 200 mA Io). The specified trr value on the substitute part provides additional design confidence for high-frequency switching applications.