FEPB16HT-E3/81 Equivalent & Substitute Parts

Part Overview

The FEPB16HT-E3/81 is a general-purpose diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 500 V DC reverse voltage and 8 A average rectified current per diode. The device is housed in a Surface Mount TO-263-3 (D2PAK) package with 2 leads plus tab.

The FEPB16HT-E3/81 carries a Last Time Buy product status, indicating that this part number is no longer in active production. Identification of equivalent and substitute parts is necessary to ensure continued design support and procurement availability for new applications and production requirements.

Substiute Parts

FEPB16HT-E3/81

Vishay General Semiconductor - Diodes DivisionIn Stock: 1024FEPB16HT-E3/81 Datasheet

Current PartRFQ

FEPB16JT-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 794FEPB16JT-M3/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FEPB16HT-E3/81 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

1. Diode Configuration: Must be 1 Pair Common Cathode to maintain circuit topology compatibility
2. Package / Case: Must be TO-263-3, D2PAK (2 Leads + Tab), TO-263AB to ensure mechanical and thermal interface compatibility
3. Mounting Type: Must be Surface Mount to maintain PCB assembly compatibility
4. Voltage - DC Reverse (Vr) (Max): Substitute must meet or exceed 500 V rating
5. Current - Average Rectified (Io) (per Diode): Substitute must meet or exceed 8 A rating
6. Voltage - Forward (Vf) (Max) @ If: Must be 1.5 V or lower at 8 A to maintain circuit performance
7. Reverse Recovery Time (trr): Must be 50 ns or faster to maintain switching characteristics
8. Operating Temperature - Junction: Must support -55°C to 150°C range
9. Technology: Must be Standard technology classification

Substitute parts that exceed the specified electrical ratings remain functionally compatible and provide enhanced performance margins. Parts that fall below any specified parameter are not suitable substitutes.

Parameter Comparison

Engineering Selection Recommendations

FEPB16JT-M3/I is the manufacturer-recommended substitute for FEPB16HT-E3/81.

Substitution Basis:

The FEPB16JT-M3/I meets all critical electrical and mechanical parameters required for direct substitution. The device maintains identical diode configuration, package form factor, and thermal operating range. The substitute part exceeds the voltage and current ratings of the original part, providing enhanced performance margins without introducing incompatibility.

Product Status Consideration:

The FEPB16HT-E3/81 carries Last Time Buy status, indicating production discontinuation. The FEPB16JT-M3/I is designated as Active product status, ensuring long-term availability and continued manufacturing support.

Compliance and Qualification:

The FEPB16JT-M3/I includes Automotive grade classification and AEC-Q101 qualification, providing additional quality assurance and reliability documentation suitable for demanding applications. Both parts maintain RoHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can FEPB16JT-M3/I be used as a direct replacement for FEPB16HT-E3/81 without circuit modification?

A: Yes. The FEPB16JT-M3/I is electrically and mechanically compatible with FEPB16HT-E3/81. Both parts share identical package geometry (TO-263-3, D2PAK), diode configuration (1 Pair Common Cathode), and critical electrical characteristics. The substitute part exceeds the original specifications, requiring no circuit redesign.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) FEPB16JT-M3/I has a higher DC reverse voltage rating (600 V vs. 500 V), (2) FEPB16JT-M3/I has a higher average rectified current rating (16 A vs. 8 A per diode), (3) FEPB16JT-M3/I carries Active product status while FEPB16HT-E3/81 is Last Time Buy, and (4) FEPB16JT-M3/I includes Automotive grade and AEC-Q101 qualification.

Q: Are the thermal characteristics identical between these parts?

A: Yes. Both parts operate across the same junction temperature range (-55°C to 150°C) and share identical reverse recovery time (50 ns) and forward voltage characteristics (1.5 V @ 8 A).

Q: Does the package footprint remain the same?

A: Yes. Both parts use the TO-263-3, D2PAK (2 Leads + Tab), TO-263AB package. PCB layout and thermal management design require no modification.

Q: Is the FEPB16JT-M3/I suitable for automotive applications?

A: Yes. The FEPB16JT-M3/I carries Automotive grade classification and AEC-Q101 qualification, making it suitable for automotive and other demanding applications requiring enhanced reliability documentation.

Q: What is the inventory status of the substitute part?

A: FEPB16JT-M3/I has 728 pieces of new original stock available. FEPB16HT-E3/81 has 937 pieces available but carries Last Time Buy status, indicating limited future availability.