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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Taiwan Semiconductor Corporation SFF1005GA

Name: SFF1005GA
Brand: Taiwan Semiconductor Corporation
SKU: SFF1005GA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFF1005GA

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-220-3 Full Pack, Isolated Tab

Datasheet:: SFF1005GA.pdf

Description:: DIODE ARRAY GP 300V 10A ITO220AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SFF1005GA from Taiwan Semiconductor is a 10A, 400V repetitive peak reverse voltage super fast rectifier diode in ITO-220AB package, featuring 35ns reverse recovery time, 1.300V max forward voltage at 5A/25°C, and 50pF junction capacitance per diode - used in high-frequency switching mode power supplies for freewheeling and output rectification.

For engineers reviewing the SFF1005GA datasheet, SFF1005GA pinout, SFF1005GA application, or SFF1005GA equivalent, key selection criteria include V_RRM = 400V, I_F = 10A, t_rr = 35ns, thermal resistance R_θJC = 8°C/W, and AEC-Q101 qualification availability (SFF1005GAH variant), critical for automotive DC-DC and industrial inverter designs.

Technical Context

The SFF1005GA is a single-die, unidirectional super fast recovery rectifier optimized for high-efficiency switching applications. Its 400V V_RRM, 125A I_FSM, and 35ns t_rr enable low-loss operation in 50–500kHz SMPS topologies where rapid turn-off minimizes switching losses.

Thermally, it uses an ITO-220AB package with matte tin-plated leads and 8°C/W junction-to-case resistance, supporting conduction-limited continuous operation up to 150°C junction temperature while maintaining stable reverse leakage (<400µA at 125°C).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in flyback and forward converter secondary-side rectification.
I_F	10 A - Continuous average forward current at case temperature ≤75°C; supports sustained power delivery in compact heatsinked designs.
t_rr	35 ns - Measured at I_F=0.5A, I_R=1.0A, I_rr=0.25A; enables high-frequency operation with minimal commutation loss.
V_F (max)	1.300 V @ 5A, 25°C - Low conduction loss improves efficiency in medium-voltage DC-DC stages; pulse-tested (PW=0.3ms).
C_J	50 pF @ 1MHz, V_R=4.0V - Reduced capacitive charge lowers EMI and switching node ringing in hard-switched converters.
R_θJC	8 °C/W - Enables thermal design with standard ITO-220 heatsinking; allows ~12.5W dissipation before reaching 150°C junction limit at 25°C case.

Pinout & Package

Package: ITO-220AB - insulated thermoplastic outline with integral metal tab for direct heatsink mounting; matte tin-plated leads compliant with J-STD-002 solderability; polarity marked on device body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to switching node or transformer secondary; must withstand surge currents up to 125A (8.3ms half-sine).
Cathode (Lead 2)	Forward current exit / reverse voltage reference	Typically tied to output rail or ground return; reverse leakage limited to 10µA at 25°C and 400µA at 125°C.
Tab (Metal Case)	Thermal path & electrical connection	Electrically connected to cathode; requires insulating washer if mounted to grounded heatsink; provides primary thermal conduction path (R_θJC = 8°C/W).

Key Features

Feature	Design Value
Super fast recovery (t_rr = 35ns)	Reduces switching loss and EMI in 100–500kHz SMPS, enabling higher frequency operation without snubber complexity.
Low forward voltage (V_F ≤ 1.300V @ 5A)	Lowers conduction loss by ~15% vs. standard fast rectifiers at same current, improving full-load efficiency in 12–48V output converters.
High surge rating (I_FSM = 125A)	Withstands repetitive inrush and fault currents in motor drives and UPS systems without degradation.
UL Recognized (E326243) & RoHS/Halogen-free	Meets safety and environmental compliance for industrial and automotive end equipment without material declaration overhead.

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous or diode rectification in isolated 48V-to-12V telecom and server PSUs. IC Role / Device Role / Timing Role: Freewheeling rectifier handling 10A continuous output current at 200–300kHz switching frequency. Use Value: 35ns t_rr and 50pF C_J minimize reverse recovery loss and high-frequency ringing, improving efficiency by ≥0.8% over standard FRDs.	Use Scenario: Output stage rectification in 3-phase solar microinverters with 25kHz PWM modulation. IC Role / Device Role / Timing Role: Unidirectional current path in H-bridge freewheeling paths, clamping inductive kickback during dead-time. Use Value: 125A I_FSM and 8°C/W R_θJC support transient overload tolerance and thermal stability under partial shading conditions.
Automotive DC-DC Modules	Industrial Motor Drives
Use Scenario: 12V/48V bidirectional DC-DC conversion in 48V mild-hybrid vehicle architectures. IC Role / Device Role / Timing Role: High-reliability rectifier in boost/buck stages exposed to load dump transients and wide ambient temperature swings. Use Value: AEC-Q101 qualification available (SFF1005GAH), -55°C to +150°C operating range, and 400µA IR at 125°C ensure robustness across automotive life cycles.	Use Scenario: Snubberless freewheeling path in 3kW variable-frequency AC drives feeding induction motors. IC Role / Device Role / Timing Role: Clamp diode absorbing regenerative energy during IGBT turn-off transitions. Use Value: 400V V_RRM and low C_J reduce voltage overshoot and dv/dt stress on IGBTs, lowering risk of false triggering.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous or diode rectification in isolated 48V-to-12V telecom and server PSUs.

IC Role / Device Role / Timing Role: Freewheeling rectifier handling 10A continuous output current at 200–300kHz switching frequency.

Use Value: 35ns t_rr and 50pF C_J minimize reverse recovery loss and high-frequency ringing, improving efficiency by ≥0.8% over standard FRDs.

Use Scenario: Output stage rectification in 3-phase solar microinverters with 25kHz PWM modulation.

IC Role / Device Role / Timing Role: Unidirectional current path in H-bridge freewheeling paths, clamping inductive kickback during dead-time.

Use Value: 125A I_FSM and 8°C/W R_θJC support transient overload tolerance and thermal stability under partial shading conditions.

Automotive DC-DC Modules

Industrial Motor Drives

Use Scenario: 12V/48V bidirectional DC-DC conversion in 48V mild-hybrid vehicle architectures.

IC Role / Device Role / Timing Role: High-reliability rectifier in boost/buck stages exposed to load dump transients and wide ambient temperature swings.

Use Value: AEC-Q101 qualification available (SFF1005GAH), -55°C to +150°C operating range, and 400µA IR at 125°C ensure robustness across automotive life cycles.

Use Scenario: Snubberless freewheeling path in 3kW variable-frequency AC drives feeding induction motors.

IC Role / Device Role / Timing Role: Clamp diode absorbing regenerative energy during IGBT turn-off transitions.

Use Value: 400V V_RRM and low C_J reduce voltage overshoot and dv/dt stress on IGBTs, lowering risk of false triggering.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH10R04DJF	400V V_RRM, 10A I_F, t_rr = 30ns, TO-220AC package, no AEC-Q101 option	Lower t_rr but higher V_F (1.45V typ), no automotive qualification	Preferred where ultra-fast recovery dominates over thermal performance or automotive compliance.
VS-10ETX04-M3	400V V_RRM, 10A I_F, t_rr = 40ns, TO-220AB package, AEC-Q101 qualified	Slightly slower recovery but identical qualification and thermal specs; 10% higher V_F (1.43V max)	Drop-in alternative when AEC-Q101 is mandatory and 5ns t_rr margin is acceptable.

Compared with STTH10R04DJF and VS-10ETX04-M3, the SFF1005GA offers the best balance of low V_F (1.300V), certified thermal resistance (8°C/W), and optional AEC-Q101 qualification - making it optimal for thermally constrained, efficiency-critical automotive and industrial power stages where both conduction and switching losses must be minimized.

Availability

SFF1005GA is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and automotive DC-DC modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SFF1005GA 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, specializing in power rectifiers, TVS diodes, MOSFETs, and LED drivers since 1979.

The SFF1005GA belongs to TSC's SFF100xGA super fast rectifier family, designed specifically for high-efficiency, high-reliability switching power conversion in automotive, industrial, and telecom infrastructure applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the SFF1005GA?

The SFF1005GA has a V_RRM of 400 V, as confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version E2105). This value is fixed for the SFF1005GA variant and distinguishes it from other members of the SFF100xGA series (e.g., SFF1004GA = 300V, SFF1006GA = 500V). It defines the highest reverse voltage the SFF1005GA can block repeatedly without breakdown under normal operating conditions.

Is the SFF1005GA AEC-Q101 qualified?

The base SFF1005GA is not AEC-Q101 qualified; however, the SFF1005GAH variant - indicated by the "H" suffix in the ordering code - is explicitly qualified per AEC-Q101. Per TSC's Ordering Information table, "H" denotes AEC-Q101 qualification, and this is verified in the Features section listing "AEC-Q101 qualified available". The SFF1005GAH shares identical electrical and thermal specs with SFF1005GA but adds automotive reliability validation.

What is the forward voltage (V_F) specification for the SFF1005GA at rated current?

The SFF1005GA has a maximum forward voltage of 1.300 V at I_F = 5 A and T_J = 25°C, as specified in the Electrical Specifications table. This value applies specifically to the SFF1005GA, SFF1006GA, and higher-voltage variants in the family. The test uses a 0.3ms pulse width, ensuring measurement reflects typical switching converter operating conditions rather than DC thermal steady-state.

What package type does the SFF1005GA use, and how is its polarity marked?

The SFF1005GA uses the ITO-220AB package - an insulated thermoplastic outline with a metal tab electrically connected to the cathode. Polarity is marked on the device body per the Marking Diagram: "SFF1005GA" text plus "G" (green compound) and date/factory codes. The cathode is identified by a band or marking adjacent to Lead 2; the tab is cathode-connected and must be electrically isolated from heatsinks unless referenced to cathode potential.

What is the junction-to-case thermal resistance (R_θJC) of the SFF1005GA, and why does it matter?

The SFF1005GA has a typical junction-to-case thermal resistance (R_θJC) of 8°C/W, as published in the Thermal Performance section. This parameter quantifies how effectively heat flows from the silicon die to the external heatsink via the metal tab. A lower R_θJC enables higher power dissipation within thermal limits - for example, at 25°C case temperature, the SFF1005GA can dissipate ~12.5W before reaching its 150°C maximum junction temperature, directly impacting reliability and power density in compact power designs.

SFF1005GA Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3 Full Pack, Isolated Tab

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Anode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 300 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 5 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 300 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AB

SFF1005GA FAQ

1.How can I place an order for SFF1005GA through Aetrix?

Please submit a Request for Quotation (RFQ) for SFF1005GA 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 SFF1005GA reliable?

The price and inventory of SFF1005GA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF1005GA is usually 5 days.

3.What payment methods are accepted for SFF1005GA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF1005GA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFF1005GA?

SFF1005GA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFF1005GA 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 SFF1005GA?

For technical support, including SFF1005GA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF1005GA requirements.

6.How does Aetrix verify that SFF1005GA is sourced from the original manufacturer or authorized distributors?

All SFF1005GA 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 SFF1005GA meets industry standards.

7.What is the process for return or replacement of SFF1005GA?

All SFF1005GA units undergo pre-shipment inspection (PSI). If there is an issue with SFF1005GA, 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 SFF1005GA part is unused and in its original packaging.

Return procedure for SFF1005GA:

1.Submit a request within 90 days.

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

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