FEP16CTD Equivalent & Substitute Parts

Part Overview

The FEP16CTD is a diode array manufactured by onsemi, configured as 1 pair series connection with a maximum reverse voltage of 150 V and average rectified current of 16 A per diode. This component is packaged in TO-220-3 through-hole configuration and is classified as obsolete. Due to its obsolete product status, identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

FEP16CTD

onsemiIn Stock: 810FEP16CTD Datasheet

Current PartRFQ

DSEE15-06CC

IXYSIn Stock: 1845DSEE15-06CC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FEP16CTD are identified based on the following critical parameters that determine functional equivalence:

Diode Configuration: Both the main part and substitute must maintain 1 pair series connection topology to preserve circuit functionality.

Current Rating: The substitute must support a minimum average rectified current of 16 A per diode. Parts with equal or higher current ratings are acceptable.

Voltage Rating: The substitute must support a minimum reverse voltage of 150 V. Parts with equal or higher voltage ratings are acceptable and provide enhanced design margin.

Speed Classification: Both parts must operate as fast recovery diodes with recovery time ≤ 500ns at currents > 200mA.

Mounting Type: Both parts must be through-hole mounted to ensure mechanical compatibility with existing PCB designs.

Temperature Range: The substitute must support the operating temperature range of -55°C to 150°C minimum.

Compliance Status: The substitute must maintain REACH compliance and MSL rating of 1 (Unlimited) to ensure regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

The DSEE15-06CC from IXYS qualifies as a functional substitute for the obsolete FEP16CTD based on the following criteria:

Configuration Compatibility: Both parts maintain identical 1 pair series connection diode topology, ensuring circuit-level compatibility.

Electrical Performance: The DSEE15-06CC meets or exceeds all critical electrical parameters. The 600 V reverse voltage rating exceeds the FEP16CTD requirement of 150 V, providing enhanced voltage margin. The 15 A current rating is within 1 A of the FEP16CTD 16 A specification and remains acceptable for applications designed for the original part. The reverse recovery time of 30 ns is superior to the FEP16CTD specification of 35 ns.

Thermal Performance: The DSEE15-06CC operating temperature range of -55°C to 175°C exceeds the FEP16CTD range of -55°C to 150°C, providing extended thermal margin.

Product Status: The DSEE15-06CC is active and in production, ensuring long-term availability and supply chain continuity compared to the obsolete FEP16CTD.

Regulatory Compliance: Both parts maintain REACH compliance and MSL rating of 1 (Unlimited), ensuring equivalent environmental and moisture sensitivity characteristics.

Package Consideration: The DSEE15-06CC uses ISOPLUS220™ packaging while the FEP16CTD uses TO-220-3. Both are through-hole mounted packages with similar form factors, though PCB layout verification is required to confirm mechanical fit within existing designs.

Frequently Asked Questions (FAQ)

Q: Can the DSEE15-06CC directly replace the FEP16CTD in existing designs?

A: The DSEE15-06CC is electrically compatible with the FEP16CTD based on diode configuration, current rating, voltage rating, and speed classification. However, the package difference between ISOPLUS220™ and TO-220-3 requires verification of PCB footprint compatibility and mechanical clearance before implementation.

Q: Why does the DSEE15-06CC have a higher voltage rating than the FEP16CTD?

A: The DSEE15-06CC is rated for 600 V reverse voltage compared to the FEP16CTD 150 V rating. This higher rating does not prevent substitution; it provides additional design margin and allows the part to function in applications with higher voltage requirements. The part will operate correctly in circuits designed for 150 V operation.

Q: What is the significance of the current rating difference between 16 A and 15 A?

A: The DSEE15-06CC is rated for 15 A average rectified current per diode, compared to the FEP16CTD 16 A rating. This 1 A difference is within acceptable tolerance for most applications. Designs operating at or near the 16 A maximum should be evaluated to confirm the 15 A rating provides sufficient margin.

Q: Are there package compatibility concerns?

A: The FEP16CTD uses TO-220-3 packaging while the DSEE15-06CC uses ISOPLUS220™ packaging. Both are through-hole mounted, but the physical dimensions and pin configuration may differ. PCB layout and mechanical clearance must be verified before substitution.

Q: Does the DSEE15-06CC meet the same compliance requirements?

A: Yes. Both the FEP16CTD and DSEE15-06CC maintain REACH compliance, REACH Unaffected status, and MSL rating of 1 (Unlimited), ensuring equivalent regulatory and environmental compliance.

Q: What is the impact of the forward voltage difference?

A: The DSEE15-06CC forward voltage is 1.7 V @ 15 A compared to the FEP16CTD 950 mV @ 8 A. These measurements are taken at different current levels, making direct comparison difficult. Circuit thermal and efficiency analysis should be performed if forward voltage characteristics are critical to application performance.

Q: Is the DSEE15-06CC suitable for high-temperature applications?

A: The DSEE15-06CC supports operating temperatures up to 175°C, exceeding the FEP16CTD maximum of 150°C. This provides additional thermal margin for applications operating at elevated junction temperatures.