FESF8DTHE3_A/P Equivalent & Substitute Parts

Part Overview

The FESF8DTHE3_A/P is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component is rated for 200 V DC reverse voltage and 8 A average rectified current, with fast recovery characteristics suitable for standard rectification applications. The part is currently active in production and maintains automotive-grade qualification under AEC-Q101 standards. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

FESF8DTHE3_A/P

Vishay General Semiconductor - Diodes DivisionIn Stock: 1050FESF8DTHE3_A/P Datasheet

Current PartRFQ

FFPF10UP20STU

Fairchild SemiconductorIn Stock: 68380FFPF10UP20STU Datasheet

MFR RecommendedRFQ

STTH802FP

STMicroelectronicsIn Stock: 1454STTH802FP Datasheet

MFR RecommendedRFQ

ER802F_T0_00001

Panjit International Inc.In Stock: 2751ER802F_T0_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FESF8DTHE3_A/P is determined by the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 8 A or higher
• Mounting Type: Through Hole
• Package / Case: TO-220-2 Full Pack configuration with isolated tab
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): ≤ 35 ns

Compliance Considerations:

• RoHS3 Compliance required
• REACH Unaffected status required
• Automotive-grade qualification preferred for AEC-Q101 applications

Substitute parts are classified into two categories:

MFR Recommended Equivalents: Parts that match or exceed all critical electrical parameters and maintain identical or superior package specifications. These parts are direct functional replacements.

Parametric Equivalents: Parts that match all critical electrical parameters and package requirements with identical specifications to the main part.

Parameter Comparison

Engineering Selection Recommendations

STTH802FP (STMicroelectronics) is classified as an MFR Recommended equivalent. This part matches the 200 V / 8 A electrical specification and maintains the TO-220-2 Full Pack isolated tab package configuration. The STTH802FP exhibits superior reverse recovery time (30 ns versus 35 ns) and lower reverse leakage current (6 µA versus 10 µA), with an extended maximum junction temperature rating of 175°C. RoHS3 compliance and REACH Unaffected status are confirmed. This part is suitable for direct substitution in applications where the main part is specified.

ER802F_T0_00001 (Panjit International Inc.) is classified as a parametric equivalent. This part provides identical electrical specifications to the FESF8DTHE3_A/P, including 200 V reverse voltage, 8 A average rectified current, 950 mV forward voltage at 8 A, and 35 ns reverse recovery time. The package configuration matches exactly (TO-220-2 Full Pack, Isolated Tab, ITO-220AC). The ER802F_T0_00001 demonstrates superior reverse leakage performance (1 µA versus 10 µA). RoHS3 compliance and REACH Unaffected status are confirmed. This part is suitable for direct substitution.

FFPF10UP20STU (Fairchild Semiconductor) is classified as an MFR Recommended equivalent with higher current rating. This part exceeds the 8 A specification with a 10 A average rectified current rating while maintaining the 200 V reverse voltage specification. The TO-220-2 Full Pack package is compatible. The higher current rating provides design margin for applications with potential current transients. Reverse leakage current is higher (100 µA versus 10 µA). RoHS and REACH compliance status are not specified in the provided data. This part is suitable for substitution in applications where the higher current rating does not create thermal or cost constraints.

All substitute parts maintain active product status and are available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can STTH802FP replace FESF8DTHE3_A/P in automotive applications?

A: Yes. STTH802FP matches the critical electrical parameters (200 V, 8 A, fast recovery ≤ 500ns) and maintains the TO-220-2 Full Pack isolated tab package. Both parts are RoHS3 compliant and REACH Unaffected. The STTH802FP exhibits improved reverse recovery time (30 ns) and lower reverse leakage current (6 µA). Automotive qualification status should be confirmed with the application requirements.

Q: What is the difference between ER802F_T0_00001 and FESF8DTHE3_A/P?

A: The ER802F_T0_00001 is a parametric equivalent with identical electrical specifications: 200 V reverse voltage, 8 A average rectified current, 950 mV forward voltage at 8 A, and 35 ns reverse recovery time. The package configuration is identical (TO-220-2 Full Pack, Isolated Tab, ITO-220AC). The primary difference is the manufacturer (Panjit versus Vishay) and superior reverse leakage performance (1 µA versus 10 µA).

Q: Why does FFPF10UP20STU have a higher current rating?

A: FFPF10UP20STU is rated for 10 A average rectified current compared to 8 A for the main part. This higher rating provides additional current capacity and design margin. The 200 V reverse voltage specification remains identical. The higher current rating does not affect package compatibility but may result in different thermal characteristics under full-load conditions.

Q: Are all substitute parts available in the same package?

A: All substitute parts use TO-220-2 Full Pack configurations. FESF8DTHE3_A/P, STTH802FP, and ER802F_T0_00001 feature isolated tab packages (ITO-220AC or TO-220FPAC). FFPF10UP20STU uses TO-220F-2L package. These package variants are mechanically compatible for through-hole mounting applications.

Q: What compliance certifications apply to all substitute parts?

A: STTH802FP, ER802F_T0_00001, and FESF8DTHE3_A/P are confirmed RoHS3 compliant and REACH Unaffected. FFPF10UP20STU compliance status is not specified in the provided data. Compliance verification should be obtained from the manufacturer for FFPF10UP20STU before use in regulated applications.

Q: Can FFPF10UP20STU be used in place of FESF8DTHE3_A/P without circuit modifications?

A: Yes. FFPF10UP20STU matches the 200 V reverse voltage specification and exceeds the 8 A current requirement with a 10 A rating. The TO-220-2 Full Pack package is mechanically compatible. The higher current rating and forward voltage (1.15 V @ 10 A versus 950 mV @ 8 A) should be evaluated for thermal and power dissipation impact in the specific application circuit.

Q: What is reverse recovery time and why does it matter?

A: Reverse recovery time (trr) is the interval required for a diode to transition from forward conduction to reverse blocking when the applied voltage reverses. FESF8DTHE3_A/P specifies 35 ns. STTH802FP provides 30 ns, which represents faster switching performance. Lower reverse recovery time reduces switching losses and electromagnetic interference in high-frequency rectification circuits. All substitute parts meet the fast recovery classification (≤ 500ns, > 200mA).

Q: What does reverse leakage current indicate?

A: Reverse leakage current is the small current that flows through a diode when reverse voltage is applied. FESF8DTHE3_A/P specifies 10 µA @ 200 V. Lower leakage current (ER802F_T0_00001 at 1 µA) indicates superior reverse blocking performance and reduced power dissipation in standby conditions. Higher leakage current (FFPF10UP20STU at 100 µA) increases standby power consumption but does not affect forward rectification performance.