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

Taiwan Semiconductor Corporation SFAF1001G

Name: SFAF1001G
Brand: Taiwan Semiconductor Corporation
SKU: SFAF1001G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFAF1001G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-2 Full Pack

Datasheet:: SFAF1001G.pdf

Description:: 35NS, 10A, 50V, SUPER FAST RECOV

Quantity:: RFQ Add To RFQ list

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Inventory:9,725

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Product details

Overview

SFAF1001G from Taiwan Semiconductor is a 10 A, 50 V repetitive peak reverse voltage (V_RRM) super fast rectifier diode in ITO-220AC package, featuring 0.975 V forward voltage at 10 A and 25 °C, 35 ns reverse recovery time, and 4 °C/W junction-to-case thermal resistance-designed for high-efficiency DC-DC converters and freewheeling paths in switching power supplies.

For engineers reviewing the SFAF1001G datasheet, SFAF1001G pinout, SFAF1001G application, or SFAF1001G equivalent, this page delivers verified electrical specs, thermal performance, mechanical mounting details, AEC-Q101 qualification status, and real-world use context for automotive-grade and industrial power conversion designs.

Technical Context

The SFAF1001G is a single-die, glass-passivated silicon super fast rectifier optimized for high-frequency switching applications. Its 35 ns reverse recovery time and low 0.975 V forward voltage at rated current enable reduced conduction and switching losses in SMPS topologies.

With a 150 °C maximum junction temperature, 150 A non-repetitive surge rating, and UL Recognized File # E-326243 compliance, it supports robust operation under transient overloads and meets stringent reliability requirements for automotive and industrial environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling configurations
I_F	10 A - Continuous average forward current; sets steady-state power handling capability at case temperature ≤ 100 °C
I_FSM	150 A - Peak non-repetitive surge current (8.3 ms half-sine); enables tolerance of startup inrush and fault transients
V_F	0.975 V @ 10 A, 25 °C - Low conduction loss improves efficiency and reduces heatsink requirements
t_rr	35 ns - Fast reverse recovery minimizes switching loss and EMI in high-frequency converters (>100 kHz)
R_θJC	4 °C/W - Thermal resistance from junction to case; enables direct heatsink mounting with predictable temperature rise
C_J	170 pF @ 1 MHz, 4 V - Junction capacitance impacts high-frequency noise and snubber design in resonant circuits

Pinout & Package

Package: ITO-220AC - Insulated TO-220 variant with isolated tab, UL 94V-0 molding compound, matte tin-plated leads, and 0.56 N·m max mounting torque. Polarity marked on device body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to input/high-side node in freewheeling or output rectification paths
Cathode (Lead 2)	Forward current exit point	Connected to ground/common return or output filter capacitor negative terminal
Case / Tab	Electrically isolated metal surface	Provides thermal path to heatsink without requiring insulating washer (ITO = insulated tab)

Key Features

Feature	Design Value
Glass passivated chip junction	Enhances moisture resistance and long-term reliability under thermal cycling and humid conditions
AEC-Q101 qualified option available (SFAF1001GH)	Validated for automotive under-hood applications including engine control and ADAS power modules
UL Recognized File # E-326243	Confirms safety compliance for end-equipment certification in industrial and medical-adjacent systems
Halogen-free per IEC 61249-2-21	Meets environmental compliance requirements for RoHS-compliant manufacturing and recycling
1.70 g typical weight	Supports automated pick-and-place placement and consistent thermal mass behavior in reflow profiles

Applications

DC–DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous rectification in isolated 48 V–12 V buck-derived converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Super fast rectifier replacing Schottky diodes where higher V_RRM margin and lower leakage are required. Use Value: 35 ns t_rr and 0.975 V V_F reduce switching loss and improve full-load efficiency by ~0.8% vs. standard FRDs.	Use Scenario: Output rectification in 3-phase motor drive inverters with regenerative braking energy recovery. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs to clamp inductive kickback and enable bidirectional energy flow. Use Value: 150 A I_FSM withstands repeated regen surges; 150 °C T_JMAX supports compact heatsink integration near power stage.
Automotive Power Modules	Industrial SMPS
Use Scenario: Input rectification in 12 V/24 V DC input modules for ADAS camera ECUs and radar control units. IC Role / Device Role / Timing Role: Primary AC/DC or DC/DC front-end rectifier in AEC-Q101-qualified power stages. Use Value: AEC-Q101 qualification (SFAF1001GH) ensures validated reliability over -40 °C to +125 °C ambient with 150 °C junction limit.	Use Scenario: Output stage rectification in 200–500 W industrial switch-mode power supplies for PLCs and HMIs. IC Role / Device Role / Timing Role: High-current freewheeling diode in forward or half-bridge topologies operating at 50–200 kHz. Use Value: 4 °C/W R_θJC allows direct mounting to aluminum chassis, eliminating thermal interface material in cost-sensitive designs.

DC–DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous rectification in isolated 48 V–12 V buck-derived converters for telecom and server PSUs.

IC Role / Device Role / Timing Role: Super fast rectifier replacing Schottky diodes where higher V_RRM margin and lower leakage are required.

Use Value: 35 ns t_rr and 0.975 V V_F reduce switching loss and improve full-load efficiency by ~0.8% vs. standard FRDs.

Use Scenario: Output rectification in 3-phase motor drive inverters with regenerative braking energy recovery.

IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs to clamp inductive kickback and enable bidirectional energy flow.

Use Value: 150 A I_FSM withstands repeated regen surges; 150 °C T_JMAX supports compact heatsink integration near power stage.

Automotive Power Modules

Industrial SMPS

Use Scenario: Input rectification in 12 V/24 V DC input modules for ADAS camera ECUs and radar control units.

IC Role / Device Role / Timing Role: Primary AC/DC or DC/DC front-end rectifier in AEC-Q101-qualified power stages.

Use Value: AEC-Q101 qualification (SFAF1001GH) ensures validated reliability over -40 °C to +125 °C ambient with 150 °C junction limit.

Use Scenario: Output stage rectification in 200–500 W industrial switch-mode power supplies for PLCs and HMIs.

IC Role / Device Role / Timing Role: High-current freewheeling diode in forward or half-bridge topologies operating at 50–200 kHz.

Use Value: 4 °C/W R_θJC allows direct mounting to aluminum chassis, eliminating thermal interface material in cost-sensitive designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar super fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH10R06DJF	600 V V_RRM, 0.95 V V_F @ 10 A, 30 ns t_rr, TO-220AC package	Higher voltage rating; slightly faster recovery but not AEC-Q101 qualified	Select when >50 V blocking margin or sub-30 ns t_rr is critical; verify layout compatibility with TO-220AC footprint
VS-10EWH06-M3	60 V V_RRM, 0.87 V V_F @ 10 A, 32 ns t_rr, TO-220AC package, AEC-Q101 qualified	Narrower V_RRM range; lower V_F but same thermal resistance and qualification level	Prefer for 48 V system inputs where tighter V_F tolerance improves light-load efficiency

Compared with STTH10R06DJF and VS-10EWH06-M3, the SFAF1001G offers optimal balance of 50 V V_RRM headroom, AEC-Q101 availability, and proven thermal performance in cost-constrained automotive and industrial power stages.

Availability

SFAF1001G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and automotive power modules requiring stable component supply, traceable sourcing, and lifecycle continuity support.

Supply support for SFAF1001G 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The SFAF1001G belongs to TSC's super fast rectifier product line, engineered specifically for high-frequency, high-reliability power conversion where low V_F, fast t_rr, and AEC-Q101 qualification are jointly required.

FAQ

What is the maximum junction temperature rating for the SFAF1001G?

The SFAF1001G has a maximum junction temperature (T_J) of +150 °C, enabling reliable operation in high-ambient environments such as under-hood automotive applications or enclosed industrial power supplies. This rating is maintained across its full operating current range when thermal design respects the 4 °C/W junction-to-case resistance. The SFAF1001G must be mounted to an appropriate heatsink to avoid exceeding this limit during continuous 10 A conduction.

Is the SFAF1001G AEC-Q101 qualified?

The base SFAF1001G is not AEC-Q101 qualified; however, the variant SFAF1001GH is explicitly qualified per AEC-Q101 Rev D for stress testing including HTSL, TC, and UHAST. For automotive applications requiring qualification evidence, SFAF1001GH must be specified-both share identical electrical and thermal specs except for the qualification status and packaging marking ('H' suffix).

What is the reverse recovery time (t_rr) of the SFAF1001G and how is it measured?

The SFAF1001G has a maximum reverse recovery time (t_rr) of 35 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A using the test circuit shown in Figure 6 of the official datasheet. This value reflects actual switching behavior in hard-commutated topologies and directly impacts turn-off loss and EMI generation in converters operating above 100 kHz.

Does the SFAF1001G have an insulated tab, and what does "ITO-220AC" mean?

Yes-the SFAF1001G uses the ITO-220AC package, where "ITO" stands for Insulated TO-220, meaning the metal tab is electrically isolated from the internal die. This eliminates the need for insulating washers when mounting to grounded heatsinks, simplifying thermal design while maintaining safety isolation. The "AC" denotes the standard lead configuration (anode-cathode) for rectifiers.

What is the forward voltage (V_F) of the SFAF1001G at 10 A and 100 °C junction temperature?

The datasheet specifies V_F = 0.975 V maximum at I_F = 10 A and T_J = 25 °C. At 100 °C, V_F decreases due to the negative temperature coefficient of silicon diodes; typical data shows ~0.85 V at 100 °C. The SFAF1001G's low V_F drift supports stable efficiency across wide temperature ranges without derating concerns.

SFAF1001G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-2 Full Pack

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 10A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 10 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 50 V

Capacitance @ Vr, F:: 170pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AC

Operating Temperature - Junction:: -55°C ~ 150°C

SFAF1001G FAQ

1.How can I place an order for SFAF1001G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFAF1001G 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 SFAF1001G reliable?

The price and inventory of SFAF1001G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1001G is usually 5 days.

3.What payment methods are accepted for SFAF1001G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1001G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFAF1001G?

SFAF1001G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFAF1001G 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 SFAF1001G?

For technical support, including SFAF1001G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1001G requirements.

6.How does Aetrix verify that SFAF1001G is sourced from the original manufacturer or authorized distributors?

All SFAF1001G 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 SFAF1001G meets industry standards.

7.What is the process for return or replacement of SFAF1001G?

All SFAF1001G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1001G, 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 SFAF1001G part is unused and in its original packaging.

Return procedure for SFAF1001G:

1.Submit a request within 90 days.

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

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