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

Taiwan Semiconductor Corporation SF1004G

Name: SF1004G
Brand: Taiwan Semiconductor Corporation
SKU: SF1004G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF1004G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-3

Datasheet:: SF1004G.pdf

Description:: DIODE GEN PURP 200V 10A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:7,418

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Product details

Overview

SF1004G from Taiwan Semiconductor is a super fast recovery rectifier diode in TO-220AB package, rated for 200 V repetitive peak reverse voltage (V_RRM), 10 A average forward current (I_F), and 125 A non-repetitive surge current (I_FSM). It delivers 0.975 V forward voltage at 5 A and 25°C, with 35 ns reverse recovery time (t_rr) and 70 pF junction capacitance - optimized for high-frequency switching in DC/DC converters.

For engineers reviewing the SF1004G datasheet, SF1004G pinout, SF1004G application, or SF1004G equivalent, key selection criteria include its 200 V V_RRM, low 0.975 V V_F at 5 A, 35 ns t_rr, TO-220AB thermal resistance of 3.5 °C/W, and suitability for freewheeling and SMPS secondary-side rectification where fast recovery and low conduction loss are critical.

Technical Context

The SF1004G employs a single-die, planar epitaxial super fast recovery structure with optimized carrier lifetime control to achieve 35 ns reverse recovery time while maintaining low forward voltage. Its 200 V V_RRM rating targets mid-voltage industrial and automotive auxiliary power supplies.

Thermally, it uses a copper leadframe in TO-220AB package with 3.5 °C/W junction-to-case resistance, enabling 10 A continuous operation at case temperatures ≤85°C. The device is not AEC-Q101 qualified (no "H" suffix), and polarity is marked on the case per standard diode orientation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - supports 200 V DC bus or 140 V RMS AC input in bridge configurations
I_F (avg)	10 A - continuous forward current rating at T_C = 85°C with heatsink
V_F @ 5 A, 25°C	0.975 V - low conduction loss enables >92% efficiency in 12–24 V output SMPS
t_rr	35 ns - enables operation up to ~3 MHz switching frequency without excessive switching loss
R_θJC	3.5 °C/W - allows 10 A operation with ≤35°C temperature rise above heatsink
C_J @ 1 MHz, 4 V	70 pF - limits capacitive turn-on loss in hard-switched topologies
I_FSM (8.3 ms)	125 A - withstands inrush and transient overloads in power supply startup

Pinout & Package

TO-220AB package: 3-terminal through-hole outline with isolated tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and 1.82 g mass. Mounting torque ≤0.56 N·m.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry	Connected to source/switch node; requires low-inductance layout to minimize ringing during recovery
Cathode (Lead 2)	Forward current exit / common reference	Electrically tied to metal tab; must be thermally coupled to heatsink and electrically referenced to output ground
Tab (Cathode)	High-current cathode terminal & thermal path	Provides primary heat dissipation path; isolation required if mounting to chassis ground

Key Features

Feature	Design Value
Super fast recovery (35 ns)	Reduces reverse recovery charge (Q_rr) to <15 nC, minimizing EMI and switching loss in 100–500 kHz SMPS
Low V_F (0.975 V @ 5 A)	Delivers 1.5 W conduction loss at full load vs. >2.2 W for standard FRDs - critical for thermal margin in enclosed designs
TO-220AB thermal performance (3.5 °C/W)	Enables 10 A operation with ≤40°C heatsink temperature rise - simplifies thermal design vs. SMD alternatives
70 pF junction capacitance	Minimizes displacement current during voltage transitions, reducing gate drive stress on synchronous MOSFETs
125 A I_FSM rating	Survives cold-start surges in 24 V industrial systems without derating or external fusing

Applications

DC/DC Converters	Switching Inverters
Use Scenario: Secondary-side rectification in isolated 24 V → 5 V/3.3 V flyback converters for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode conducting during transformer reset phase; recovers before next switching cycle. Use Value: 35 ns t_rr prevents cross-conduction loss with primary-side MOSFET, improving efficiency by 1.2% at 250 kHz.	Use Scenario: Output stage anti-parallel diode in 400 V DC-link H-bridge inverters for HVAC fan drives. IC Role / Device Role / Timing Role: Bidirectional current path during PWM dead-time; clamps inductive kickback. Use Value: 200 V V_RRM and 125 A I_FSM ensure safe commutation under 300 V bus transients and motor stall currents.
Freewheeling Diodes	SMPS Secondary Rectification
Use Scenario: Inductor freewheel path in 48 V → 12 V buck converters powering telecom baseband cards. IC Role / Device Role / Timing Role: Provides low-loss current path when main switch turns off; conducts until inductor energy depletes. Use Value: 0.975 V V_F reduces conduction loss by 28% vs. standard FRD, lowering thermal stress on PCB copper pours.	Use Scenario: Output rectifier in 12 V, 5 A forward converter for server auxiliary power. IC Role / Device Role / Timing Role: Unidirectional current delivery to output capacitor; blocks reverse voltage during transformer reset. Use Value: 70 pF C_J minimizes capacitive coupling into feedback network, preserving regulation stability.

DC/DC Converters

Switching Inverters

Use Scenario: Secondary-side rectification in isolated 24 V → 5 V/3.3 V flyback converters for PLC I/O modules.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during transformer reset phase; recovers before next switching cycle.

Use Value: 35 ns t_rr prevents cross-conduction loss with primary-side MOSFET, improving efficiency by 1.2% at 250 kHz.

Use Scenario: Output stage anti-parallel diode in 400 V DC-link H-bridge inverters for HVAC fan drives.

IC Role / Device Role / Timing Role: Bidirectional current path during PWM dead-time; clamps inductive kickback.

Use Value: 200 V V_RRM and 125 A I_FSM ensure safe commutation under 300 V bus transients and motor stall currents.

Freewheeling Diodes

SMPS Secondary Rectification

Use Scenario: Inductor freewheel path in 48 V → 12 V buck converters powering telecom baseband cards.

IC Role / Device Role / Timing Role: Provides low-loss current path when main switch turns off; conducts until inductor energy depletes.

Use Value: 0.975 V V_F reduces conduction loss by 28% vs. standard FRD, lowering thermal stress on PCB copper pours.

Use Scenario: Output rectifier in 12 V, 5 A forward converter for server auxiliary power.

IC Role / Device Role / Timing Role: Unidirectional current delivery to output capacitor; blocks reverse voltage during transformer reset.

Use Value: 70 pF C_J minimizes capacitive coupling into feedback network, preserving regulation stability.

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 @ 5 A, 30 ns t_rr, TO-220AC package (non-isolated tab)	Higher voltage rating suits 400 V DC-link systems; non-isolated tab requires insulating washer	Select when higher V_RRM margin or faster t_rr is needed, and thermal interface permits non-isolated mounting.
ON Semi MUR1020CT	Dual common-cathode configuration, 200 V V_RRM, 1.15 V V_F @ 5 A, 60 ns t_rr, TO-220AB	Offers dual-diode integration for center-tapped secondaries; slower recovery increases switching loss	Choose for dual-output flyback or push-pull topologies where layout space favors integrated dual die.

Compared with STTH10R06DJF and MUR1020CT, the SF1004G provides optimal balance of 200 V rating, 0.975 V forward drop, and 35 ns recovery for cost-sensitive 24–48 V SMPS - with isolated tab simplifying heatsink grounding versus ST's TO-220AC, and faster recovery than ON Semi's MUR series for higher-frequency designs.

Availability

SF1004G is available at Aetrix Electronics and suitable for DC/DC converters, switching inverters, and freewheeling applications requiring stable component supply, consistent parametric performance across production lots, and long-term industrial lifecycle support.

Supply support for SF1004G 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 industrial, computing, and automotive markets since 1979.

The SF1001G–SF1008G super fast rectifier family is designed for high-efficiency, high-reliability power conversion in industrial SMPS, UPS systems, and motor drives - emphasizing low V_F, fast t_rr, and robust thermal performance in TO-220AB.

FAQ

What is the maximum junction temperature rating for SF1004G?

The SF1004G has a maximum junction temperature (T_J) rating of +150°C, with operational range from –55°C to +150°C. This allows reliable use in industrial environments where ambient temperatures reach 85°C and case temperatures approach 110°C under full 10 A load with adequate heatsinking. Derating curves in the datasheet confirm 10 A is sustainable at T_C ≤ 85°C.

Is SF1004G AEC-Q101 qualified?

No, SF1004G is not AEC-Q101 qualified. Only variants with the "H" suffix (e.g., SF1004GH) meet AEC-Q101 stress test requirements. The SF1004G carries no automotive qualification and is intended for industrial and commercial power applications where extended temperature cycling and vibration testing are not mandated.

What is the reverse recovery time (t_rr) specification for SF1004G?

The SF1004G has a maximum reverse recovery time (t_rr) of 35 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is confirmed across production lots and applies to the entire SF1001G–SF1008G family for devices with V_RRM ≤ 200 V (SF1001G–SF1004G). It enables efficient operation in 200–500 kHz switching power supplies.

Does SF1004G have an isolated tab in the TO-220AB package?

Yes, the SF1004G uses a TO-220AB package with an electrically isolated metal tab that is internally connected to the cathode. This allows direct mechanical mounting to a grounded heatsink without additional insulation, unlike TO-220AC variants. Polarity is marked on the device body per standard diode convention.

What is the typical junction capacitance (C_J) of SF1004G?

The SF1004G exhibits a typical junction capacitance (C_J) of 70 pF at 1 MHz and 4.0 V reverse bias. This value is specified for SF1001G–SF1004G variants and directly impacts high-frequency switching behavior - lower C_J reduces capacitive turn-on loss and EMI generation compared to higher-voltage variants (e.g., SF1005G–SF1008G at 50 pF).

SF1004G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 10A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 5 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 200 V

Capacitance @ Vr, F:: 70pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

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

SF1004G FAQ

1.How can I place an order for SF1004G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF1004G 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 SF1004G reliable?

The price and inventory of SF1004G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1004G is usually 5 days.

3.What payment methods are accepted for SF1004G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1004G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF1004G?

SF1004G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF1004G 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 SF1004G?

For technical support, including SF1004G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1004G requirements.

6.How does Aetrix verify that SF1004G is sourced from the original manufacturer or authorized distributors?

All SF1004G 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 SF1004G meets industry standards.

7.What is the process for return or replacement of SF1004G?

All SF1004G units undergo pre-shipment inspection (PSI). If there is an issue with SF1004G, 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 SF1004G part is unused and in its original packaging.

Return procedure for SF1004G:

1.Submit a request within 90 days.

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

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