FESB16HTHE3_A/I Equivalent & Substitute Parts

Part Overview

The FESB16HTHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 500 V DC reverse voltage with 16 A average rectified current in a TO-263AB (D2PAK) package. The device is qualified to AEC-Q101 automotive standards and features fast recovery characteristics with a 50 ns reverse recovery time.

This part carries a Last Time Buy product status, indicating that the manufacturer has discontinued or will discontinue production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

FESB16HTHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1088FESB16HTHE3_A/I Datasheet

Current PartRFQ

FESB16JTHM3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1007FESB16JTHM3/I Datasheet

MFR RecommendedRFQ

FESB16HT-E3/81

Vishay General Semiconductor - Diodes DivisionIn Stock: 1423FESB16HT-E3/81 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectifier diodes is determined by electrical and mechanical compatibility within defined parameter ranges. The following criteria establish valid substitution relationships for the FESB16HTHE3_A/I:

Parametric Equivalents maintain identical or superior electrical performance across all critical specifications:

• DC reverse voltage rating equal to or greater than the original part
• Average rectified current rating equal to or greater than the original part
• Forward voltage drop within the same specification
• Reverse recovery time within the same specification class
• Reverse leakage current within acceptable limits
• Identical package and mounting type (TO-263AB, surface mount)
• Matching automotive grade and AEC-Q101 qualification
• Operating temperature range covering the original specification

Manufacturer-Recommended Substitutes are designated by the original manufacturer as direct replacements that may exceed certain electrical parameters while maintaining full functional compatibility and meeting all mechanical and environmental requirements.

Parameter Comparison

Engineering Selection Recommendations

FESB16JTHM3/I (Manufacturer-Recommended Substitute)

This part is designated as the manufacturer-recommended replacement for the FESB16HTHE3_A/I. The FESB16JTHM3/I carries Active product status, ensuring continued availability and manufacturing support. The device maintains identical current and forward voltage specifications while providing an elevated DC reverse voltage rating of 600 V, which is backward-compatible with 500 V applications. All automotive qualifications, AEC-Q101 certification, and package specifications remain unchanged. This substitute is appropriate for new designs and ongoing production requiring long-term component availability.

FESB16HT-E3/81 (Parametric Equivalent)

This part provides parametric equivalence to the FESB16HTHE3_A/I with identical electrical specifications across all critical parameters. The FESB16HT-E3/81 maintains the same 500 V reverse voltage rating, 16 A current capacity, forward voltage drop, and reverse recovery time. Both parts share Last Time Buy status; however, the FESB16HT-E3/81 currently maintains higher inventory levels (1369 pcs vs. 1064 pcs). This substitute is suitable for applications where the original part specifications must be preserved exactly and where inventory availability is a consideration.

Both substitutes maintain full automotive-grade qualification and AEC-Q101 compliance, ensuring compatibility with automotive applications and safety-critical systems.

Frequently Asked Questions (FAQ)

Q: Can the FESB16JTHM3/I be used in place of the FESB16HTHE3_A/I without circuit modifications?

A: Yes. The FESB16JTHM3/I is the manufacturer-recommended substitute and maintains identical current, forward voltage, and reverse recovery time specifications. The elevated 600 V reverse voltage rating is backward-compatible with 500 V circuit designs. No circuit modifications are required.

Q: What is the difference between the two substitute parts?

A: The FESB16JTHM3/I is manufacturer-recommended with Active product status and 600 V reverse voltage rating. The FESB16HT-E3/81 is a parametric equivalent with identical 500 V specifications to the original part. Selection depends on design requirements and long-term availability needs.

Q: Are both substitute parts qualified for automotive applications?

A: Yes. Both FESB16JTHM3/I and FESB16HT-E3/81 carry Automotive grade classification and AEC-Q101 qualification, matching the original FESB16HTHE3_A/I specifications.

Q: Is the TO-263AB package identical across all three parts?

A: Yes. The FESB16HTHE3_A/I, FESB16JTHM3/I, and FESB16HT-E3/81 all use the TO-263-3 D2PAK (2 Leads + Tab) surface mount package. PCB footprints and mounting procedures are identical.

Q: What is the significance of Last Time Buy status?

A: Last Time Buy indicates that the manufacturer has discontinued or will discontinue production of that specific part number. Customers must transition to alternative part numbers to ensure continued supply. The FESB16JTHM3/I with Active status is the recommended transition path.

Q: Can these parts be used interchangeably in existing designs?

A: The FESB16JTHM3/I can be used directly as a drop-in replacement. The FESB16HT-E3/81 provides parametric equivalence and can also be used as a direct replacement. Both maintain identical package, mounting type, and automotive qualifications.

Q: What is the operating temperature range for these diodes?

A: All three parts operate across a junction temperature range of -65°C to 150°C, supporting automotive and industrial applications across extended temperature environments.