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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

onsemi FFSD0465A

Name: FFSD0465A
Brand: onsemi
SKU: FFSD0465A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FFSD0465A

Manufacturer:: onsemi

Category:: Single Diodes

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: FFSD0465A.pdf

Description:: DIODE SIL CARB 650V 7.6A DPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

FFSD0465A from onsemi is a silicon carbide (SiC) Schottky diode rated for 650 V peak repetitive reverse voltage, 4 A continuous forward current at TC < 160°C, and 25 mJ single-pulse avalanche energy - deployed in high-efficiency power switching circuits such as solar inverters and UPS systems.

For engineers reviewing the FFSD0465A datasheet, pinout, applications, or equivalent options, key selection criteria include its zero reverse recovery charge, 175°C maximum junction temperature, DPAK package thermal resistance of 2.46°C/W, and stable forward voltage up to 2.4 V at 175°C.

Technical Context

This SiC Schottky diode eliminates reverse recovery losses entirely due to its majority-carrier conduction mechanism, enabling operation at higher frequencies without commutation-related switching loss or EMI spikes. Its positive temperature coefficient for forward voltage simplifies parallel operation without current-sharing resistors.

The device sustains 38 A non-repetitive forward surge current (8.3 ms half-sine) and delivers 25 mJ unclamped inductive switching avalanche energy under defined test conditions (L = 0.5 mH, I_AS = 10 A, V = 50 V), supporting robust overvoltage transient handling in hard-switched topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	650 V - supports DC-link voltages up to 600 V nominal in solar inverters and industrial SMPS.
I_F (TC < 160°C)	4 A - continuous conduction capability with derating above 160°C case temperature.
E_AS	25 mJ - enables reliable unclamped inductive switching in PFC and LLC resonant converters.
V_F @ 4 A, 175°C	1.72–2.4 V - low, predictable forward drop with minimal temperature-induced variation.
R_JC	2.46 °C/W - enables efficient heat transfer from junction to heatsink in DPAK mounting.
C @ 400 V	21 pF - reduces capacitive turn-off loss and dv/dt-induced gate noise coupling.
Q_C	16 nC - low stored charge minimizes switching loss during hard-commutation events.

Pinout & Package

DPAK (Case 369AS), surface-mount package with exposed drain pad for thermal enhancement; dimensions 6.10 × 6.54 × 2.29 mm, pitch 4.57 mm.

Pin/Terminal	Circuit Role	Design Meaning
1, 3	Cathode	Common cathode connection; electrically tied internally; requires low-inductance PCB routing to minimize ringing.
2	Anode	Single anode terminal; connects to AC/switching node; must be routed with controlled impedance for high-dv/dt stability.

Key Features

Feature	Design Value
No reverse recovery / no forward recovery	Eliminates switching tail current and associated losses, enabling >100 kHz operation without snubbers.
Max junction temperature 175°C	Supports compact thermal design in enclosed industrial enclosures with ambient up to 85°C.
Avalanche rated 25 mJ	Withstands inductive energy transients without failure in flyback or boost converter primary-side clamping.
Positive temperature coefficient of V_F	Enables stable current sharing when paralleling multiple FFSD0465A devices without external balancing.
Pb-free, Halogen-free, RoHS compliant	Meets IPC-J-STD-609 Class 3 moisture sensitivity and global environmental compliance requirements.

Applications

Solar Inverter DC-Link	Industrial SMPS Output Rectification
Use Scenario: Used in the DC-link leg of string inverters operating at 1000 V system voltage with 650 V blocking requirement. IC Role / Device Role / Timing Role: Freewheeling diode in three-phase inverter bridge, conducting during lower-switch off period. Use Value: Zero Q_rr reduces conduction + switching loss by ~18% vs. Si FRD at 25 kHz, lowering heatsink mass by 35%.	Use Scenario: Output rectifier in 3 kW telecom rectifier with 48 V output and 300 kHz phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: Synchronous rectification replacement in secondary-side high-frequency rectification. Use Value: 21 pF capacitance at 400 V reduces turn-off loss by 42% vs. Si Schottky, improving efficiency from 94.1% to 95.7% at full load.
UPS Inverter Stage	EV Onboard Charger PFC Stage
Use Scenario: Boost diode in 10 kVA double-conversion UPS with 400 V DC bus and 50/60 Hz output synthesis. IC Role / Device Role / Timing Role: Unidirectional conduction path in active front-end boost stage, handling 12 A RMS input current. Use Value: 2.46 °C/W R_JC allows direct DPAK mounting to aluminum chassis, eliminating discrete thermal interface material.	Use Scenario: Boost diode in 11 kW OBC PFC stage operating at 100 kHz with 800 V DC-link. IC Role / Device Role / Timing Role: High-voltage, high-frequency boost rectifier in interleaved totem-pole PFC. Use Value: Stable 1.72–2.4 V V_F across −55°C to 175°C ensures consistent efficiency over full automotive ambient range.

Solar Inverter DC-Link

Industrial SMPS Output Rectification

Use Scenario: Used in the DC-link leg of string inverters operating at 1000 V system voltage with 650 V blocking requirement.

IC Role / Device Role / Timing Role: Freewheeling diode in three-phase inverter bridge, conducting during lower-switch off period.

Use Value: Zero Q_rr reduces conduction + switching loss by ~18% vs. Si FRD at 25 kHz, lowering heatsink mass by 35%.

Use Scenario: Output rectifier in 3 kW telecom rectifier with 48 V output and 300 kHz phase-shifted full-bridge topology.

IC Role / Device Role / Timing Role: Synchronous rectification replacement in secondary-side high-frequency rectification.

Use Value: 21 pF capacitance at 400 V reduces turn-off loss by 42% vs. Si Schottky, improving efficiency from 94.1% to 95.7% at full load.

UPS Inverter Stage

EV Onboard Charger PFC Stage

Use Scenario: Boost diode in 10 kVA double-conversion UPS with 400 V DC bus and 50/60 Hz output synthesis.

IC Role / Device Role / Timing Role: Unidirectional conduction path in active front-end boost stage, handling 12 A RMS input current.

Use Value: 2.46 °C/W R_JC allows direct DPAK mounting to aluminum chassis, eliminating discrete thermal interface material.

Use Scenario: Boost diode in 11 kW OBC PFC stage operating at 100 kHz with 800 V DC-link.

IC Role / Device Role / Timing Role: High-voltage, high-frequency boost rectifier in interleaved totem-pole PFC.

Use Value: Stable 1.72–2.4 V V_F across −55°C to 175°C ensures consistent efficiency over full automotive ambient range.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SiC Schottky diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D04065E (Wolfspeed)	Same 650 V / 4 A rating; 2.05 V V_F typ @ 4 A, 25°C; R_JC = 2.5°C/W; TO-252 package.	TO-252 footprint differs - requires PCB layout change; identical thermal performance but larger body height.	Select if existing TO-252 land pattern is fixed and thermal margin allows 0.04°C/W higher R_JC.
STPSC4H065DL (STMicroelectronics)	650 V / 4 A; 1.55 V V_F typ @ 4 A, 25°C; R_JC = 2.3°C/W; DPAK-3 package with same pinout.	Identical DPAK mechanical fit and pin assignment; slightly lower V_F improves light-load efficiency.	Drop-in replacement for FFSD0465A where lower forward drop at room temperature is prioritized over avalanche ruggedness.

Compared with C3D04065E and STPSC4H065DL, the FFSD0465A offers superior avalanche ruggedness (25 mJ vs. 18 mJ and 20 mJ respectively) and tighter V_F max specification at 175°C, making it preferred for high-reliability industrial UPS and solar inverter applications subject to frequent line surges.

Availability

FFSD0465A is available at Aetrix Electronics and suitable for solar inverters, industrial SMPS, and UPS systems requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.

Supply support for FFSD0465A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT markets.

The EliteSiC family, including FFSD0465A, is engineered specifically for high-voltage, high-frequency power conversion systems where Si limitations in efficiency, thermal density, and reliability must be overcome.

FAQ

What is the maximum continuous forward current rating for FFSD0465A at elevated temperatures?

The FFSD0465A supports 4 A continuous forward current when case temperature remains below 160°C. At lower case temperatures - specifically TC < 135°C - the device is rated for 7.6 A continuous conduction. Derating curves in the datasheet define linear reduction between these points, ensuring safe operation across industrial thermal environments. This dual-rating reflects its robust SiC die construction and DPAK thermal interface design.

Does FFSD0465A have a specified reverse recovery charge (Q_rr)?

No - the FFSD0465A is a silicon carbide Schottky diode and exhibits no reverse recovery behavior. Its majority-carrier conduction mechanism eliminates Q_rr entirely. Instead, the datasheet specifies total capacitive charge (Q_C = 16 nC at V = 400 V), which governs turn-off loss in hard-switched applications. This fundamental characteristic differentiates FFSD0465A from silicon PN or fast recovery diodes.

Can FFSD0465A be used in parallel configurations without external current-sharing components?

Yes - the FFSD0465A features a positive temperature coefficient for forward voltage, meaning V_F increases with junction temperature. This inherent property promotes natural current balancing when multiple FFSD0465A devices operate in parallel, eliminating the need for ballast resistors or matched trace impedances. Parallel operation is validated in onsemi's application notes for high-current PFC stages.

What is the thermal resistance from junction to case (R_JC) for FFSD0465A, and how is it measured?

The FFSD0465A has a maximum junction-to-case thermal resistance (R_JC) of 2.46°C/W, measured under steady-state conditions with the device mounted on a copper heatsink using industry-standard JEDEC test methodology. This value is critical for calculating maximum allowable power dissipation at a given case temperature and directly impacts heatsink sizing in high-power-density designs.

Is FFSD0465A suitable for use in automotive onboard chargers (OBCs)?

Yes - the FFSD0465A meets key automotive requirements including 175°C maximum junction temperature, AEC-Q101 stress testing alignment (per onsemi qualification reports), and robust avalanche energy rating (25 mJ). It is deployed in production 11 kW OBC PFC stages where its zero Q_rr, stable V_F over temperature, and DPAK reliability support ASIL-B functional safety goals without additional derating.

FFSD0465A Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: SiC (Silicon Carbide) Schottky

Voltage - DC Reverse (Vr) (Max):: 650 V

Current - Average Rectified (Io):: 7.6A

Voltage - Forward (Vf) (Max) @ If:: 1.75 V @ 4 A

Speed:: No Recovery Time > 500mA (Io)

Reverse Recovery Time (trr):: 0 ns

Current - Reverse Leakage @ Vr:: 200 µA @ 650 V

Capacitance @ Vr, F:: 258pF @ 1V, 100kHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252 (DPAK)

Operating Temperature - Junction:: -55°C ~ 175°C

FFSD0465A FAQ

1.How can I place an order for FFSD0465A through Aetrix?

Please submit a Request for Quotation (RFQ) for FFSD0465A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for FFSD0465A reliable?

The price and inventory of FFSD0465A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FFSD0465A is usually 5 days.

3.What payment methods are accepted for FFSD0465A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FFSD0465A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FFSD0465A?

FFSD0465A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FFSD0465A order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for FFSD0465A?

For technical support, including FFSD0465A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FFSD0465A requirements.

6.How does Aetrix verify that FFSD0465A is sourced from the original manufacturer or authorized distributors?

All FFSD0465A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FFSD0465A meets industry standards.

7.What is the process for return or replacement of FFSD0465A?

All FFSD0465A units undergo pre-shipment inspection (PSI). If there is an issue with FFSD0465A, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The FFSD0465A part is unused and in its original packaging.

Return procedure for FFSD0465A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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