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Taiwan Semiconductor Corporation SFF2001G
- Part No.:
- SFF2001G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SFF2001G.pdf
- Description:
- DIODE ARRAY GP 50V 20A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,780
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Product details
Overview
SFF2001G from Taiwan Semiconductor is a 20A, 50V super fast recovery rectifier diode in ITO-220AB package, featuring 35ns reverse recovery time, 0.975V forward voltage at 10A/25°C, and 150A surge capability - deployed in DC-DC converters for high-efficiency power conversion.
For engineers reviewing the SFF2001G datasheet, SFF2001G pinout, SFF2001G application, or SFF2001G equivalent, key selection criteria include VRRM = 50V, IF = 20A, trr = 35ns, RθJC = 2.5°C/W, and AEC-Q101 qualification availability (SFF2001GH variant), critical for automotive-grade switching power supplies.
Technical Context
The SFF2001G integrates dual silicon die in a single ITO-220AB thermally optimized package, enabling high-current freewheeling with low conduction loss. Its super fast recovery (trr ≤ 35ns) and low VF (0.975V typ. @ 10A) reduce switching losses in high-frequency SMPS topologies.
Thermal performance is defined by RθJC = 2.5°C/W and TJ(max) = 150°C, supporting continuous operation up to 20A with proper heatsinking. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; sets minimum input/output isolation margin in 12–24V DC-DC stages |
| IF | 20 A - Continuous average forward current; supports high-power buck/boost converter outputs without forced air cooling |
| IFSM | 150 A - Non-repetitive surge rating (8.3ms half-sine); withstands inrush and fault currents in industrial power supplies |
| trr | 35 ns - Reverse recovery time; enables stable operation up to ~500 kHz switching frequency with minimal switching loss |
| VF | 0.975 V (typ. @ 10A, 25°C) - Low forward drop reduces conduction loss and thermal stress in high-duty-cycle applications |
| RθJC | 2.5 °C/W - Junction-to-case thermal resistance; allows direct mounting to heatsink for thermal management in compact designs |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with internal insulation barrier, matte tin-plated leads (J-STD-002 compliant), 1.82g mass, UL 94V-0 molding compound, and 0.56 N·m max mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to high-side switch node in buck converters; polarity marked on case per datasheet diagram |
| Cathode (K) | Forward current exit point | Connected to output rail or ground return; serves as freewheeling path during switch-off phase |
| Case / Tab | Electrically isolated thermal path | Non-conductive mounting surface; enables heatsink attachment without electrical shorting in floating topologies |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr ≤ 35 ns) | Enables high-frequency (>300 kHz) switching with minimal tail current loss and EMI generation |
| Low VF (0.975 V typ. @ 10A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, improving efficiency in 12V–24V output rails |
| Dual-die configuration | Provides redundancy and thermal distribution across shared ITO-220AB footprint, enhancing reliability under cyclic load |
| AEC-Q101 qualification option (SFF2001GH) | Validates robustness for automotive under-hood environments including temperature cycling and mechanical shock |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Step-down (buck) conversion in telecom power modules delivering 12V/20A output from 48V input. IC Role / Device Role / Timing Role: Freewheeling diode conducting during high-side MOSFET off-time; critical for energy transfer and voltage regulation stability. Use Value: 35ns trr minimizes reverse recovery charge (Qrr), reducing switching loss and allowing higher operating frequency without efficiency penalty. | Use Scenario: H-bridge inverter stage converting 400V DC bus to 230V AC for solar micro-inverters. IC Role / Device Role / Timing Role: Anti-parallel diode providing reactive current path during PWM dead-time; must block 50V+ reverse voltage while recovering rapidly. Use Value: 50V VRRM and 2.5°C/W RθJC ensure safe operation under partial-load reactive conditions with minimal thermal derating. |
| Freewheeling Circuits | Industrial SMPS |
Use Scenario: Inductive load control in PLC output modules driving 24V solenoids and relays. IC Role / Device Role / Timing Role: Clamping diode suppressing inductive kickback spikes during coil de-energization; requires fast turn-off to limit voltage overshoot. Use Value: 150A IFSM withstands repeated 100A+ transient spikes, extending system lifetime versus standard rectifiers. | Use Scenario: 500W server PSU with active PFC front-end and LLC resonant secondary stage. IC Role / Device Role / Timing Role: Output rectifier in synchronous rectification-assisted secondary; operates at elevated ambient (70°C+) with tight thermal margins. Use Value: TJ(max) = 150°C and JESD201 Class 2 whisker resistance support long-term reliability in unventilated rack-mount 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 |
|---|---|---|---|
| STTH2003D | VRRM = 300V, trr = 35ns, VF = 1.15V @ 10A - higher blocking voltage but higher forward drop | Designed for 200–400V bus applications; less suitable for 50V systems due to over-spec'd VRRM and cost premium | Select when higher reverse margin is required and layout allows same ITO-220AB footprint |
| ON Semi MUR2050CT | Dual common-cathode configuration, VRRM = 50V, trr = 35ns, VF = 0.92V @ 10A - slightly lower VF, identical voltage rating and speed | Optimized for dual-output or interleaved converters; pinout differs (cathode-shared vs. isolated dies) | Prefer for space-constrained dual-rail designs where shared cathode simplifies PCB routing |
Compared with STTH2003D and MUR2050CT, the SFF2001G offers optimal balance of 50V rating, 0.975V VF, and thermally efficient ITO-220AB packaging - making it ideal for cost-sensitive, high-volume 24V/48V industrial DC-DC converters requiring AEC-Q101 readiness.
Availability
SFF2001G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling circuits requiring stable component supply, automotive-grade qualification path (via SFF2001GH), and thermal reliability in compact power modules.
Supply support for SFF2001G 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 industrial, computing, and automotive markets since 1979.
The SFF2001G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency switching power supplies where low trr, low VF, and robust thermal performance are essential - targeting 100 kHz–1 MHz SMPS designs in telecom, server, and EV auxiliary systems.
FAQ
What is the maximum junction temperature rating for the SFF2001G?
The SFF2001G has a maximum junction temperature (TJ(max)) of +150°C, validated per absolute maximum ratings table. This rating enables continuous 20A operation with appropriate heatsinking and ambient derating - critical for enclosed industrial power supplies where case temperatures exceed 85°C. The SFF2001G maintains full specification compliance up to this limit.
Is the SFF2001G pin-compatible with other ITO-220AB rectifiers?
Yes, the SFF2001G uses the standard ITO-220AB mechanical outline with Anode–Cathode–Tab pin assignment, matching industry-standard footprints such as STTH2003D and MUR2050CT. However, its dual-die isolation means the tab is electrically insulated - unlike common-cathode variants - so PCB layout must maintain isolation between tab and circuit ground.
Does the SFF2001G meet automotive reliability standards?
The base SFF2001G is not AEC-Q101 qualified, but the SFF2001GH variant is explicitly certified to AEC-Q101. Both share identical electrical specs and package; only the GH version undergoes extended stress testing (temperature cycling, humidity bias, mechanical shock). For automotive under-hood use, specify SFF2001GH - the SFF2001G remains suitable for industrial and telecom applications.
What is the reverse recovery time (trr) test condition for the SFF2001G?
The SFF2001G reverse recovery time is measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A, per JEDEC JESD24-11. This standardized condition yields trr ≤ 35ns (max), confirming suitability for high-frequency switching above 300 kHz. The value is guaranteed across -55°C to +125°C operating range, not just at 25°C.
How does the SFF2001G's thermal resistance compare to standard TO-220 rectifiers?
The SFF2001G specifies RθJC = 2.5°C/W - 20–30% lower than typical TO-220 rectifiers (~3.0–3.5°C/W) due to optimized die attach and ITO-220AB's insulated thermal path. This enables higher power density: at 20A, junction-to-case rise is ~50°C versus ~65°C for legacy parts, directly improving system thermal margin and reliability.
SFF2001G 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):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- 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
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
SFF2001G FAQ
1.How can I place an order for SFF2001G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFF2001G 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 SFF2001G reliable?
The price and inventory of SFF2001G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF2001G is usually 5 days.
3.What payment methods are accepted for SFF2001G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF2001G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFF2001G?
SFF2001G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFF2001G 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 SFF2001G?
For technical support, including SFF2001G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF2001G requirements.
6.How does Aetrix verify that SFF2001G is sourced from the original manufacturer or authorized distributors?
All SFF2001G 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 SFF2001G meets industry standards.
7.What is the process for return or replacement of SFF2001G?
All SFF2001G units undergo pre-shipment inspection (PSI). If there is an issue with SFF2001G, 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 SFF2001G part is unused and in its original packaging.
Return procedure for SFF2001G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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