DSEC59-06BC Equivalent & Substitute Parts

Part Overview

The DSEC59-06BC is a diode array rectifier manufactured by IXYS, featuring a 1 Pair Common Cathode configuration rated for 600 V DC reverse voltage and 30 A average rectified current per diode. This component is packaged in the ISOPLUS220™ through-hole format and is part of the HiPerFRED™ series. The device is currently Active in product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the ISOPLUS220™ package is not compatible with target PCB layouts, when alternative thermal management strategies are required, or when inventory constraints necessitate sourcing from alternative manufacturers while maintaining electrical performance within acceptable operating parameters.

Substiute Parts

DSEC59-06BC

IXYSIn Stock: 877DSEC59-06BC Datasheet

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STTH15AC06CFP

STMicroelectronicsIn Stock: 1504STTH15AC06CFP Datasheet

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STTH20LCD06CFP

STMicroelectronicsIn Stock: 1410STTH20LCD06CFP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSEC59-06BC is determined by the following critical electrical and mechanical parameters:

Mandatory Matching Parameters:

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

Current Rating Consideration: The DSEC59-06BC is rated for 30 A average rectified current per diode. Substitute parts with lower current ratings (7.5 A, 10 A) are electrically compatible for applications requiring reduced current capacity but cannot be used in circuits demanding the full 30 A specification.

Package Compatibility: The ISOPLUS220™ package is specific to the DSEC59-06BC. Substitute parts utilize TO-220-3 Full Pack (TO-220FPAB) configuration, which requires different PCB footprints and thermal management approaches.

Parameter Comparison

Engineering Selection Recommendations

STTH20LCD06CFP (STMicroelectronics): This substitute is suitable for applications where the 30 A current rating of the DSEC59-06BC is not required and a 10 A per-diode specification is acceptable. The STTH20LCD06CFP maintains 600 V reverse voltage rating, fast recovery characteristics, and ROHS3 compliance. The TO-220-3 Full Pack configuration requires PCB redesign. Product status is Active, ensuring long-term availability and supply chain stability. The reverse recovery time of 50 ns is acceptable for fast-switching applications, though 20 ns slower than the main part.

STTH15AC06CFP (STMicroelectronics): This substitute is applicable only for circuits requiring 7.5 A or less per diode. The 600 V reverse voltage rating and fast recovery speed match the DSEC59-06BC electrical requirements. However, this part is marked Obsolete, indicating discontinued production and potential future unavailability. The TO-220-3 Full Pack package requires PCB layout modification. Use of this substitute is not recommended for new designs due to product status.

Both substitutes maintain the 1 Pair Common Cathode configuration, 600 V rating, fast recovery classification, and RoHS3 compliance required for electrical equivalence. Package differences necessitate mechanical redesign of the PCB footprint and thermal management strategy.

Frequently Asked Questions (FAQ)

Q: Can the STTH20LCD06CFP replace the DSEC59-06BC in all applications?

A: The STTH20LCD06CFP is electrically compatible only for applications requiring 10 A or less per diode. The DSEC59-06BC is rated for 30 A per diode. If the circuit requires the full 30 A specification, the STTH20LCD06CFP cannot be used. Additionally, the TO-220-3 Full Pack package requires different PCB footprint and thermal management design compared to the ISOPLUS220™ package.

Q: What is the significance of the 1 Pair Common Cathode configuration?

A: The 1 Pair Common Cathode configuration indicates the diode array contains two diodes with a shared cathode terminal. This internal connection topology must be matched in any substitute part to ensure proper circuit operation. Both substitute parts maintain this configuration.

Q: Why is the STTH15AC06CFP marked as Obsolete?

A: Product status Obsolete indicates that STMicroelectronics has discontinued production of this part. While inventory may be available from distributors, future sourcing cannot be guaranteed. For new designs, the Active-status STTH20LCD06CFP is the preferred STMicroelectronics alternative.

Q: How do package differences affect substitution?

A: The DSEC59-06BC uses the ISOPLUS220™ package, while both STMicroelectronics substitutes use TO-220-3 Full Pack (TO-220FPAB). These packages have different physical dimensions, pin configurations, and thermal characteristics. PCB redesign is required to accommodate the different package footprint. Thermal management strategies may differ due to variations in heat dissipation paths between package types.

Q: Are there current rating limitations when using substitutes?

A: Yes. The STTH20LCD06CFP is rated for 10 A average rectified current per diode, and the STTH15AC06CFP is rated for 7.5 A per diode. These parts cannot supply the full 30 A specification of the DSEC59-06BC. Circuit design must account for the reduced current capacity of the substitute part.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. Both STTH20LCD06CFP and STTH15AC06CFP are ROHS3 compliant, REACH unaffected, and carry the same ECCN and HTSUS classifications as the DSEC59-06BC. Moisture sensitivity level is 1 (Unlimited) for all three parts.

Q: What is the impact of reverse recovery time differences?

A: The DSEC59-06BC has a reverse recovery time (trr) of 30 ns, while both substitutes have 50 ns. This 20 ns difference may affect switching performance in high-frequency applications. For applications operating below approximately 1 MHz, this difference is typically negligible. High-frequency switching circuits should evaluate the impact of the longer recovery time on system performance.