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Taiwan Semiconductor Corporation SFF1603G
- Part No.:
- SFF1603G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SFF1603G.pdf
- Description:
- DIODE ARRAY GP 150V 16A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,084
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Product details
Overview
SFF1603G from Taiwan Semiconductor is a 150 V, 16 A super fast recovery rectifier diode in ITO-220AB package, featuring 35 ns reverse recovery time and 0.975 V forward voltage at 8 A/25°C, designed for high-efficiency freewheeling and DC-DC converter output stages.
For engineers reviewing the SFF1603G datasheet, SFF1603G pinout, SFF1603G application, or SFF1603G equivalent, key selection criteria include its 150 V repetitive peak reverse voltage, dual-die configuration, junction-to-case thermal resistance of 1.5 °C/W, AEC-Q101 qualification option (SFF1603GH), and UL recognition (E-326243).
Technical Context
The SFF1603G integrates two independent silicon die in a single ITO-220AB thermally optimized package, enabling dual-diode functionality without external paralleling. Its super fast recovery (trr ≤ 35 ns) and low VF (0.975 V @ 8 A, 25°C) reduce switching losses in high-frequency SMPS topologies.
Rated for TJ = –55°C to +150°C operation with 125 A non-repetitive surge capability (8.3 ms half-sine), the device supports robust freewheeling in automotive-grade power supplies where thermal management and reliability under transient stress are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse blocking voltage per diode; defines usable input/output voltage range in flyback or buck converters |
| IF | 16 A - Continuous average forward current per diode; determines steady-state power handling without forced cooling |
| IFSM | 125 A - Peak non-repetitive surge current (8.3 ms); enables survival during startup inrush or load dump events |
| trr | 35 ns - Reverse recovery time; minimizes switching loss and EMI in >100 kHz converters |
| RθJC | 1.5 °C/W - Junction-to-case thermal resistance; allows direct heatsink mounting for efficient thermal dissipation |
| VF @ 8A, 25°C | 0.975 V - Forward voltage drop per diode; directly impacts conduction loss and efficiency at nominal load |
| CJ @ 1 MHz, 4 V | 80 pF - Junction capacitance per diode; influences high-frequency switching behavior and snubber design |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with electrically isolated tab, UL 94V-0 molding compound, matte tin-plated leads, and 0.56 N·m max mounting torque. Polarity marked on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode | Connects to switching node in freewheeling path; must withstand full reverse voltage when off |
| Cathode 1 (K1) | Output terminal for first diode | Common cathode connection point; ties to output rail or ground reference |
| Anode 2 (A2) | Input terminal for second diode | Independent anode; enables dual-output or phase-split configurations without shared nodes |
| Cathode 2 (K2) | Output terminal for second diode | Isolated cathode; supports independent current paths or redundancy in safety-critical designs |
| Tab (Case) | Thermal & electrical isolation point | Electrically isolated metal tab; provides mechanical mounting and thermal interface without circuit connection |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr ≤ 35 ns) | Reduces turn-off loss and EMI generation in high-frequency (>100 kHz) switching applications |
| Dual-die configuration | Enables two independent rectification paths in one footprint-no PCB area penalty vs. discrete diodes |
| Junction-to-case RθJC = 1.5 °C/W | Supports 16 A continuous operation with minimal heatsink size; simplifies thermal design |
| AEC-Q101 qualified option (SFF1603GH) | Validated for automotive under-hood environments including temperature cycling, vibration, and humidity testing |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and consumer power supplies |
Applications
| DC–DC Converter Output Stage | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in isolated 48 V–12 V buck-derived converters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Super fast rectifier providing low-loss unidirectional current flow during freewheeling interval. Use Value: 0.975 V VF and 35 ns trr cut conduction + switching losses by ~18% vs. standard fast recovery diodes at 8 A load. | Use Scenario: Bidirectional freewheeling path in three-phase motor drive inverters with regenerative braking. IC Role / Device Role / Timing Role: Dual-die structure allows independent control of upper/lower leg freewheeling paths. Use Value: Isolated tab and 150 V VRRM support safe operation across 100 V bus systems with margin for voltage spikes. |
| Automotive On-Board Charger (OBC) | Industrial AC–DC Front-End Rectification |
Use Scenario: Output rectification in PFC + LLC resonant stage of 3.3 kW OBC modules requiring AEC-Q101 compliance. IC Role / Device Role / Timing Role: High-reliability rectifier handling 16 A continuous output with 125 A surge tolerance during plug-in transients. Use Value: AEC-Q101-qualified version (SFF1603GH) meets automotive qualification for under-hood thermal cycling and long-term stability. | Use Scenario: Input bridge rectification in 1.5 kW industrial SMPS with wide input range (85–264 VAC). IC Role / Device Role / Timing Role: Fast recovery diode minimizing reverse recovery charge (Qrr) in high-voltage, high-current bridge legs. Use Value: 80 pF junction capacitance and 1.5 °C/W RθJC enable stable operation at 70°C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1602CT | 100 V VRRM, 16 A IF, TO-220AC package (non-isolated tab), trr = 35 ns, VF = 0.95 V @ 8 A | Lacks electrical isolation; requires insulating washer for heatsink mounting | Preferred where cost sensitivity outweighs isolation need and layout permits insulator use |
| VS-16EWH03-M3 | 300 V VRRM, 16 A IF, TO-247AC package, trr = 30 ns, VF = 1.05 V @ 8 A, AEC-Q101 qualified | Higher voltage rating and larger package; not drop-in due to different pinout and footprint | Selected when 300 V blocking and enhanced surge margin are required in new designs |
Compared with STTH1602CT and VS-16EWH03-M3, the SFF1603G uniquely combines 150 V rating, ITO-220AB isolation, and UL recognition-making it optimal for space-constrained, safety-certified 48–150 V industrial and automotive power stages where tab isolation is mandatory.
Availability
SFF1603G is available at Aetrix Electronics and suitable for DC–DC converters, switching mode inverters, and automotive on-board chargers requiring stable component supply, consistent parametric performance, and traceable sourcing.
Supply support for SFF1603G 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.
The SFF1603G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency, high-reliability power conversion where low VF, fast trr, and robust surge capability are essential in compact form factors.
FAQ
What is the maximum junction temperature rating for the SFF1603G?
The SFF1603G has a maximum junction temperature (TJ) rating of +150°C, with operational range from –55°C to +150°C. This rating supports reliable operation in high-ambient environments such as enclosed power supplies or under-hood automotive locations. Thermal design must ensure that actual junction temperature stays within this limit under worst-case load and ambient conditions, using the specified RθJC = 1.5 °C/W value.
Does the SFF1603G have AEC-Q101 qualification?
The base SFF1603G is not AEC-Q101 qualified, but the variant SFF1603GH is fully AEC-Q101 qualified and shares identical electrical and thermal specifications. The "H" suffix denotes qualification per AEC-Q101 Rev D, including stress tests for temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. Always specify SFF1603GH for automotive applications requiring formal qualification.
What is the reverse recovery time (trr) specification for the SFF1603G?
The SFF1603G has a maximum reverse recovery time (trr) of 35 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed across the full temperature range and ensures minimal switching loss and reduced EMI in high-frequency power converters operating above 100 kHz. The trr remains stable up to 125°C junction temperature.
How does the ITO-220AB package differ from standard TO-220AB in the SFF1603G?
The ITO-220AB package used in the SFF1603G features an electrically insulated metal tab, unlike standard TO-220AB which has a conductive tab tied to the cathode. This insulation eliminates the need for thermal washers or isolation pads when mounting to grounded heatsinks, simplifying assembly and improving thermal reliability. The package retains the same outline dimensions and mounting torque (0.56 N·m max) as TO-220AB.
What is the forward voltage (VF) of the SFF1603G at rated current?
The SFF1603G exhibits a typical forward voltage (VF) of 0.975 V at IF = 8 A and TJ = 25°C. At full rated average current (16 A), VF rises to approximately 1.15 V (typical) due to self-heating and dynamic resistance effects. This low VF contributes directly to reduced conduction losses and higher system efficiency in high-current power stages.
SFF1603G 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 Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io) (per Diode):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 975 mV @ 8 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:
- ITO-220AB
SFF1603G FAQ
1.How can I place an order for SFF1603G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFF1603G 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 SFF1603G reliable?
The price and inventory of SFF1603G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF1603G is usually 5 days.
3.What payment methods are accepted for SFF1603G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF1603G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFF1603G?
SFF1603G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFF1603G 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 SFF1603G?
For technical support, including SFF1603G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF1603G requirements.
6.How does Aetrix verify that SFF1603G is sourced from the original manufacturer or authorized distributors?
All SFF1603G 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 SFF1603G meets industry standards.
7.What is the process for return or replacement of SFF1603G?
All SFF1603G units undergo pre-shipment inspection (PSI). If there is an issue with SFF1603G, 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 SFF1603G part is unused and in its original packaging.
Return procedure for SFF1603G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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