FEP16BT Equivalent & Substitute Parts

Part Overview

The FEP16BT is a general-purpose diode array featuring a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 16 A average rectified current per diode. Manufactured by onsemi in a Through Hole TO-220-3 package, this component is classified as Obsolete. Due to its obsolete status and limited ongoing availability from the original manufacturer, identifying equivalent and substitute parts is necessary for design continuity and procurement planning. Active alternatives with comparable or enhanced electrical characteristics are available from other manufacturers.

Substiute Parts

FEP16BT

onsemiIn Stock: 2617FEP16BT Datasheet

Current PartRFQ

FEP16BT-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 1563FEP16BT-E3/45 Datasheet

DirectRFQ

STTH1602CT

STMicroelectronicsIn Stock: 44259STTH1602CT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FEP16BT are classified based on strict adherence to the following electrical and mechanical parameters:

Direct Equivalent Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 100 V (minimum requirement)
• Current - Average Rectified (Io) (per Diode): 16 A (minimum requirement)
• Mounting Type: Through Hole
• Package / Case: TO-220-3
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Similar Substitute Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): ≥ 100 V
• Current - Average Rectified (Io) (per Diode): ≥ 10 A
• Mounting Type: Through Hole
• Package / Case: TO-220-3
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Parts meeting Direct Equivalent Criteria can be used as drop-in replacements. Parts meeting Similar Substitute Criteria provide enhanced performance characteristics and are suitable for applications where higher voltage or comparable current ratings are acceptable.

Parameter Comparison

Engineering Selection Recommendations

FEP16BT-E3/45 (Direct Equivalent - Recommended Primary Choice)

The FEP16BT-E3/45 manufactured by Vishay General Semiconductor - Diodes Division is a direct equivalent to the FEP16BT. This part maintains identical electrical specifications across all critical parameters: 100 V reverse voltage, 16 A average rectified current, 950 mV forward voltage at 8 A, 35 ns reverse recovery time, and -55°C to 150°C operating temperature range. The FEP16BT-E3/45 is classified as Active with ROHS3 compliance and REACH Unaffected status, ensuring long-term availability and regulatory compliance. This part functions as a drop-in replacement with no circuit modifications required.

STTH1602CT (Similar Substitute - Secondary Option)

The STTH1602CT manufactured by STMicroelectronics is classified as a similar substitute. This part shares the same diode configuration, mounting type, and package (TO-220-3), with fast recovery speed characteristics. The STTH1602CT provides enhanced performance with 200 V reverse voltage rating (double that of the FEP16BT) and a lower reverse recovery time of 26 ns compared to 35 ns. However, the average rectified current is rated at 10 A per diode, which is lower than the FEP16BT's 16 A rating. The forward voltage is 1.1 V at 8 A, representing a 150 mV increase over the FEP16BT specification. The STTH1602CT is Active with ROHS3 compliance and REACH Unaffected status. This part is suitable for applications where the 10 A current rating is sufficient and where the higher voltage rating provides design margin.

Both substitute parts are Active products with current manufacturing status, ensuring procurement availability and regulatory compliance for new designs and legacy system support.

Frequently Asked Questions (FAQ)

Q: Can the FEP16BT-E3/45 be used as a direct replacement for the FEP16BT?

A: Yes. The FEP16BT-E3/45 is a direct equivalent with identical electrical specifications and the same TO-220-3 package. No circuit modifications or design changes are required for substitution.

Q: What are the key differences between the FEP16BT and the STTH1602CT?

A: The STTH1602CT has a higher reverse voltage rating (200 V vs. 100 V) and faster reverse recovery time (26 ns vs. 35 ns). However, it has a lower average rectified current rating (10 A vs. 16 A per diode) and higher forward voltage (1.1 V vs. 950 mV at 8 A). The STTH1602CT is suitable for applications where 10 A current capacity is adequate and higher voltage margin is beneficial.

Q: Are both substitute parts available in the same package as the FEP16BT?

A: Yes. Both the FEP16BT-E3/45 and STTH1602CT are packaged in TO-220-3, matching the FEP16BT's Through Hole mounting configuration. Both parts are mechanically compatible with existing PCB layouts.

Q: What is the product status of the substitute parts?

A: Both FEP16BT-E3/45 and STTH1602CT are classified as Active products, indicating current manufacturing and long-term availability. The original FEP16BT is Obsolete, making these substitutes necessary for ongoing procurement.

Q: Do the substitute parts meet regulatory compliance requirements?

A: Both substitute parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory standards. The original FEP16BT's RoHS status was not specified, but both substitutes provide documented compliance for new designs.

Q: Which substitute should be selected for a new design?

A: For new designs requiring the exact electrical specifications of the FEP16BT (100 V, 16 A), the FEP16BT-E3/45 is the appropriate choice. For applications where higher voltage rating is beneficial and 10 A current capacity is sufficient, the STTH1602CT provides enhanced performance characteristics.

Q: Can the STTH1602CT be used in all applications where the FEP16BT was used?

A: The STTH1602CT can be used in applications where the average rectified current requirement does not exceed 10 A per diode. Applications requiring the full 16 A rating of the FEP16BT require the FEP16BT-E3/45 or equivalent 16 A rated parts.