DSEC29-06AC Equivalent & Substitute Parts

Part Overview

The DSEC29-06AC is a diode array rectifier manufactured by IXYS, featuring a 1 Pair Common Cathode configuration rated for 600 V DC reverse voltage and 15 A average rectified current per diode. This component is packaged in the ISOPLUS220™ through-hole format and is part of the HiPerFRED™ series. The part maintains Active product status with 2161 units in current inventory.

Substitute parts become necessary when the DSEC29-06AC reaches end-of-life status, when inventory becomes unavailable, or when design requirements necessitate alternative packaging or electrical performance characteristics within the same functional category.

Substiute Parts

DSEC29-06AC

IXYSIn Stock: 2229DSEC29-06AC Datasheet

Current PartRFQ

STTH15AC06CFP

STMicroelectronicsIn Stock: 1504STTH15AC06CFP Datasheet

SimilarRFQ

STTH20LCD06CFP

STMicroelectronicsIn Stock: 1410STTH20LCD06CFP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DSEC29-06AC are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 600 V
• Technology: Standard
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Current - Average Rectified (Io) (per Diode): Substitutes may operate at lower current ratings (7.5 A, 10 A) provided the application does not exceed the substitute's rated current
• Voltage - Forward (Vf) (Max): Minor variations acceptable within fast recovery diode specifications
• Reverse Recovery Time (trr): Variations within fast recovery classification (≤ 500ns) are acceptable
• Package / Case: Alternative through-hole packages (TO-220-3 Full Pack) are acceptable with mechanical compatibility verification
• Operating Temperature - Junction: Substitutes with equivalent or extended temperature ranges are acceptable

The STTH15AC06CFP and STTH20LCD06CFP from STMicroelectronics meet these substitution criteria with the noted current and packaging variations.

Parameter Comparison

Engineering Selection Recommendations

STTH20LCD06CFP (Primary Substitute)

The STTH20LCD06CFP is the preferred substitute for the DSEC29-06AC. This part maintains Active product status, ensuring long-term availability and supply chain stability. It matches the critical electrical parameters: 600 V DC reverse voltage, fast recovery technology, and through-hole mounting. The 10 A current rating accommodates applications requiring up to 10 A per diode. The TO-220-3 Full Pack package requires PCB layout modification but provides equivalent electrical performance. Both parts are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements.

STTH15AC06CFP (Secondary Substitute)

The STTH15AC06CFP qualifies as a substitute for applications limited to 7.5 A per diode operation. This part carries Obsolete product status, indicating limited future availability. Selection of this part is appropriate only when inventory clearance is prioritized or when application current requirements do not exceed 7.5 A. The extended operating temperature range (-65°C ~ 175°C) provides additional thermal margin compared to the main part. ROHS3 compliance and REACH Unaffected status are maintained.

Package Compatibility Consideration

The main part uses ISOPLUS220™ packaging while both substitutes use TO-220-3 Full Pack. PCB footprint modification is required for substitution. Mechanical clearance and thermal management characteristics differ between packages and must be evaluated for specific applications.

Frequently Asked Questions (FAQ)

Q: Can STTH20LCD06CFP directly replace DSEC29-06AC without PCB modification?

A: No. The STTH20LCD06CFP uses TO-220-3 Full Pack packaging while the DSEC29-06AC uses ISOPLUS220™ packaging. Different PCB footprints require layout modification. Pin configuration and lead spacing differ between these packages.

Q: What is the current derating consideration when using STTH20LCD06CFP as a substitute?

A: The STTH20LCD06CFP is rated for 10 A average rectified current per diode, compared to the DSEC29-06AC at 15 A. Applications requiring more than 10 A per diode cannot use this substitute. Verify application current requirements before selection.

Q: Why is STTH15AC06CFP listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. While inventory may be available from distributors, future procurement cannot be guaranteed. STTH20LCD06CFP is recommended for new designs due to its Active status.

Q: Are the reverse recovery time differences significant between the main part and substitutes?

A: The DSEC29-06AC has 35 ns reverse recovery time while both substitutes have 50 ns. Both fall within the fast recovery classification (≤ 500ns). The 15 ns difference is acceptable for standard rectifier applications but should be evaluated for high-frequency switching circuits.

Q: Do all three parts meet the same regulatory compliance standards?

A: Yes. The DSEC29-06AC, STTH15AC06CFP, and STTH20LCD06CFP are all ROHS3 Compliant and REACH Unaffected. All three parts carry EAR99 ECCN classification and 8541.10.0080 HTSUS code.

Q: What is the impact of lower reverse leakage current in the substitute parts?

A: The STTH15AC06CFP and STTH20LCD06CFP have 1 µA reverse leakage at 600 V, compared to 100 µA for the DSEC29-06AC. Lower leakage current reduces power dissipation and heat generation, providing a performance advantage in the substitutes.

Q: Can both substitutes be used interchangeably in the same application?

A: No. Current rating differences (7.5 A versus 10 A) determine suitability. STTH20LCD06CFP supports higher current applications. Selection depends on specific application current requirements. Both require identical PCB footprint modifications from the original DSEC29-06AC.