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Taiwan Semiconductor Corporation SF1003G
- Part No.:
- SF1003G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SF1003G.pdf
- Description:
- DIODE ARRAY GP 150V 10A TO-220AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,424
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Product details
Overview
SF1003G from Taiwan Semiconductor is a 10A, 150V super fast recovery rectifier diode in TO-220AB package, featuring 35ns reverse recovery time, 0.975V forward voltage at 5A/25°C, and 125A surge capability - used in DC-DC converters and freewheeling paths in automotive-grade switching power supplies.
For engineers reviewing the SF1003G datasheet, SF1003G pinout, SF1003G application, or SF1003G equivalent, key selection criteria include VRRM = 150V, IF = 10A, trr = 35ns, RθJC = 3.5°C/W, and AEC-Q101 qualification availability (SF1003GH variant).
Technical Context
The SF1003G employs dual-die construction in a single TO-220AB case, enabling high-current handling with low thermal resistance. Its super fast recovery (trr ≤ 35ns) minimizes switching losses in high-frequency SMPS topologies operating up to several hundred kHz.
Electrical behavior is characterized by low forward voltage (VF = 0.975V @ 5A, 25°C), tight reverse leakage (IR ≤ 10µA @ 25°C), and stable junction capacitance (CJ = 70pF @ 1MHz, 4V), supporting efficient hard-switched converter designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse blocking voltage; defines usable input voltage range in buck/flyback outputs. |
| IF | 10 A - average forward current rating; supports continuous conduction mode operation in 100–200W converters. |
| trr | 35 ns - reverse recovery time; enables efficient operation in 100–500 kHz switching applications with minimal tail current loss. |
| VF | 0.975 V @ 5A, 25°C - low conduction loss; reduces heat generation and improves efficiency vs. standard fast rectifiers. |
| RθJC | 3.5 °C/W - junction-to-case thermal resistance; allows direct heatsink mounting for thermal management without forced air. |
| IFSM | 125 A @ 8.3ms - non-repetitive surge rating; withstands inrush and transient overloads in industrial power supplies. |
| CJ | 70 pF @ 1MHz, 4V - junction capacitance per diode; impacts snubber design and EMI filtering requirements. |
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 1.82g mass. Mounting torque ≤ 0.56 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry | Connected to switch node or transformer secondary; must handle full load current and dI/dt stress. |
| Cathode (Lead 2) | Output current exit | Common output rail connection; electrically tied to metal tab for thermal path and EMI shielding. |
| Tab (Cathode) | Thermal & electrical cathode | Provides primary heat dissipation path; requires insulating washer if mounted to grounded heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr ≤ 35ns) | Reduces switching loss and EMI in high-frequency SMPS, enabling smaller magnetics and filters. |
| Low VF (0.975V @ 5A) | Lowers conduction loss by ~15–20% vs. standard fast rectifiers, improving thermal margin at full load. |
| Dual-die configuration | Enables parallel conduction path within single package, maintaining reliability while scaling current density. |
| AEC-Q101 qualification option (SF1003GH) | Validated for automotive under-hood environments including temperature cycling, humidity, and mechanical shock. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally restricted substances in final assembly. |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48V–12V buck-derived converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Output rectifier conducting during synchronous or diode-based freewheeling phase. Use Value: 35ns trr and 0.975V VF reduce conduction + switching losses, enabling >94% efficiency at 10A load. | Use Scenario: Freewheeling path in 3-phase motor drive inverters with IGBT half-bridge outputs. IC Role / Device Role / Timing Role: Clamping diode providing safe current recirculation during IGBT turn-off transitions. Use Value: 125A IFSM withstands motor back-EMF spikes; TO-220AB tab enables direct heatsink coupling for thermal stability. |
| Automotive Power Supplies | Industrial SMPS |
Use Scenario: Input rectification in 12V/24V automotive DC-DC modules powering ADAS ECUs and infotainment systems. IC Role / Device Role / Timing Role: Primary rectifier converting alternator AC or battery-fed boost output to regulated DC bus. Use Value: AEC-Q101 qualified variant (SF1003GH) ensures reliability across -40°C to +150°C junction range and vibration exposure. | Use Scenario: Output stage rectification in 100–300W industrial open-frame power supplies for PLCs and HMIs. IC Role / Device Role / Timing Role: High-current freewheeling diode in forward or flyback topology secondary windings. Use Value: 3.5°C/W RθJC allows passive cooling with aluminum heatsinks, eliminating fan dependency in sealed enclosures. |
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 | VRRM = 600V, trr = 30ns, VF = 1.15V @ 10A - higher voltage rating, slightly faster but higher conduction loss. | Preferred in 400–600V PFC front-ends; less optimal for 150V secondary-side use due to over-spec'd VRRM. | Select when higher voltage margin or tighter trr is critical; verify thermal derating at 10A due to higher VF. |
| ON Semi MUR1015CT | Dual common-cathode configuration, VRRM = 150V, trr = 35ns, VF = 0.92V @ 5A - identical VRRM/trr, lower VF, but TO-220AC (non-isolated tab). | Requires insulated mounting hardware; better for cost-sensitive industrial designs where isolation not required. | Choose for lower conduction loss and dual-diode convenience; confirm heatsink isolation compatibility. |
Compared with STTH10R06DJF and MUR1015CT, the SF1003G offers optimal balance of 150V rating, 35ns recovery, 0.975V VF, and isolated TO-220AB tab - making it especially suitable for thermally constrained, automotive-qualified, or safety-isolated secondary-side rectification.
Availability
SF1003G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and automotive power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SF1003G 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, automotive, and consumer markets since 1979.
The SF100xG series targets high-efficiency, high-reliability power conversion applications - specifically engineered for super fast recovery performance, thermal robustness, and AEC-Q101 readiness in demanding switching power supplies.
FAQ
What is the maximum junction temperature rating for SF1003G?
The SF1003G has a maximum junction temperature (TJ) rating of +150°C, with operational storage temperature ranging from –55°C to +150°C. This rating supports reliable operation in under-hood automotive environments and high-ambient industrial settings when properly heatsinked using its TO-220AB tab interface.
Does SF1003G have AEC-Q101 qualification?
The base SF1003G is not AEC-Q101 qualified; however, the SF1003GH variant - identical in all electrical and thermal specifications - is fully AEC-Q101 qualified and marked with "H" suffix. Engineers requiring automotive-grade validation must specify SF1003GH for compliance with stress test requirements including temperature cycling and mechanical shock.
What is the reverse recovery time (trr) specification for SF1003G?
The SF1003G has a maximum reverse recovery time (trr) of 35 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed across the full operating temperature range and enables efficient operation in switching power supplies running at frequencies up to 500 kHz.
How does the TO-220AB package of SF1003G differ from TO-220AC?
The SF1003G uses TO-220AB packaging, where the metal tab is electrically connected to the cathode and thermally isolated from leads - enabling direct heatsink mounting with optional insulation. TO-220AC packages have an isolated tab, unsuitable for cathode-referenced thermal paths. This distinction is critical for layout and thermal design in high-current applications.
What is the forward voltage (VF) of SF1003G at rated current?
The SF1003G exhibits a typical forward voltage (VF) of 0.975 V at IF = 5 A and TJ = 25°C, with maximum values increasing to ~1.15 V at 10 A and elevated junction temperatures. This low VF directly contributes to reduced conduction losses and improved thermal performance in high-duty-cycle power stages.
SF1003G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io) (per Diode):
- 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 @ 150 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
SF1003G FAQ
1.How can I place an order for SF1003G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF1003G 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 SF1003G reliable?
The price and inventory of SF1003G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1003G is usually 5 days.
3.What payment methods are accepted for SF1003G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1003G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF1003G?
SF1003G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF1003G 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 SF1003G?
For technical support, including SF1003G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1003G requirements.
6.How does Aetrix verify that SF1003G is sourced from the original manufacturer or authorized distributors?
All SF1003G 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 SF1003G meets industry standards.
7.What is the process for return or replacement of SF1003G?
All SF1003G units undergo pre-shipment inspection (PSI). If there is an issue with SF1003G, 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 SF1003G part is unused and in its original packaging.
Return procedure for SF1003G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SF1003G Tags
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