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Taiwan Semiconductor Corporation SFF1601G
- Part No.:
- SFF1601G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SFF1601G.pdf
- Description:
- DIODE ARRAY GP 50V 16A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,962
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Product details
Overview
SFF1601G from Taiwan Semiconductor is a 16A, 50V super fast rectifier diode in ITO-220AB package with dual-die configuration, 0.975V typical forward voltage at 8A/25°C, 35ns reverse recovery time, and 1.5°C/W junction-to-case thermal resistance-used in DC-DC converters requiring high-efficiency freewheeling paths.
For engineers reviewing the SFF1601G datasheet, SFF1601G pinout, SFF1601G application, or SFF1601G equivalent, key selection criteria include its 50V VRRM, AEC-Q101 qualification eligibility (SFF1601GH variant), UL recognition (E-326243), RoHS/halogen-free compliance, and ITO-220AB mechanical mounting requirements.
Technical Context
The SFF1601G implements a dual-die super fast recovery rectifier architecture optimized for switching-mode power supplies operating up to 100kHz. Its 35ns trr and low 0.975V VF at 8A enable reduced conduction and switching losses in high-frequency freewheeling and output rectification roles.
Thermally, it delivers 1.5°C/W RθJC into an ITO-220AB heatsink-mountable case, supporting continuous 16A operation up to 150°C junction temperature. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe DC/peak AC voltage limit in rectifier applications |
| IF | 16 A - Continuous forward current rating at case temperature ≤ 85°C; sets maximum steady-state load current |
| IFSM | 125 A - Non-repetitive surge current (8.3ms half-sine); determines short-circuit and startup stress tolerance |
| trr | 35 ns - Reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A; critical for minimizing switching loss in SMPS |
| VF | 0.975 V - Typical forward voltage per diode at IF=8A, TJ=25°C; directly impacts conduction loss and thermal design |
| RθJC | 1.5 °C/W - Junction-to-case thermal resistance; enables thermal modeling for heatsink sizing and derating |
| CJ | 80 pF - Typical junction capacitance per diode at 1MHz, VR=4.0V; influences high-frequency noise and snubber design |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with isolated tab, matte tin-plated leads, UL 94V-0 molding compound, 1.70g mass, and 0.56 N·m max mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current terminal | Connects to higher-potential node (e.g., switch node in buck converter); carries full forward current |
| Cathode (Lead 2) | Output current terminal | Connects to lower-potential node (e.g., output rail); common cathode configuration for dual-die structure |
| Tab (Isolated) | Thermal interface only | Electrically isolated metal surface for heatsink attachment; no electrical connection to internal dies |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr = 35 ns) | Enables efficient operation in 50–100 kHz switching converters without excessive switching loss or ringing |
| Low forward voltage (VF = 0.975 V @ 8A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, lowering thermal load and heatsink cost |
| Dual-die configuration | Provides parallel current path within single ITO-220AB footprint, improving current sharing and thermal symmetry |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in industrial and consumer power supplies |
| AEC-Q101 qualification option (SFF1601GH) | Supports automotive-grade reliability requirements including temperature cycling, HTRB, and ESD testing |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Output rectification in isolated flyback or forward converters delivering 12–48V at up to 16A. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; handles high di/dt and reverse recovery stress. Use Value: 35ns trr minimizes reverse recovery charge (Qrr) and associated switching loss, improving efficiency >2% at 100kHz. | Use Scenario: Bridge-leg freewheeling path in three-phase motor inverters for HVAC and industrial drives. IC Role / Device Role / Timing Role: Anti-parallel diode providing current recirculation during PWM dead-time intervals. Use Value: 125A IFSM withstands motor inductive kickback surges; 1.5°C/W RθJC supports forced-air-cooled designs. |
| SMPS Power Supplies | Industrial UPS Systems |
Use Scenario: Secondary-side rectification in telecom rectifiers and server PSUs operating at 50–75kHz. IC Role / Device Role / Timing Role: High-current output rectifier handling continuous 16A load with minimal voltage drop. Use Value: 0.975V VF reduces conduction loss by 1.56W vs. 1.075V alternative, easing thermal management at full load. | Use Scenario: Battery-charger input stage and inverter output stage in line-interactive UPS units. IC Role / Device Role / Timing Role: Bidirectional energy transfer path during battery discharge and grid recharging cycles. Use Value: Dual-die layout ensures balanced current sharing under asymmetric load transients; UL recognition simplifies safety approval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1605D | 50V VRRM, 16A IF, 30ns trr, TO-220AC package (non-isolated tab) | Requires insulating washer for heatsink mounting; slightly faster recovery but higher VF (1.05V) | Prefer when absolute minimum trr is critical and isolation can be managed externally |
| VS-16EWH05 | 50V VRRM, 16A IF, 35ns trr, ITO-220AB package, AEC-Q101 qualified standard | Includes AEC-Q101 qualification in base part number; same thermal and electrical specs | Prefer for automotive programs requiring certified qualification without ordering suffix |
Compared with STTH1605D and VS-16EWH05, the SFF1601G offers identical trr and package isolation as VS-16EWH05 but requires GH suffix for AEC-Q101, while offering lower VF than STTH1605D-making it optimal for thermally constrained industrial SMPS where isolation and conduction loss dominate.
Availability
SFF1601G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial UPS systems requiring stable component supply, long-term lifecycle support, and traceable sourcing of high-reliability rectifiers.
Supply support for SFF1601G 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 SFF1601G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency switching power supplies where low VF, fast trr, and robust surge capability are essential for efficiency and reliability.
FAQ
What is the maximum junction temperature rating for the SFF1601G?
The SFF1601G has a maximum junction temperature (TJ) rating of +150°C, with a storage temperature range of –55°C to +150°C. This allows operation in demanding industrial environments when properly heatsinked. Derating curves in the datasheet specify allowable IF reduction above 85°C case temperature. Thermal design must respect the 1.5°C/W RθJC to avoid exceeding TJ limits under full load.
Does the SFF1601G have AEC-Q101 qualification?
The base SFF1601G is not AEC-Q101 qualified; however, the SFF1601GH variant-identical in all electrical and thermal specifications-is fully AEC-Q101 qualified. The "H" suffix denotes qualification per stress test conditions including HTGB, HTRB, TC, and ESD. For automotive applications, SFF1601GH must be specified; SFF1601G alone does not meet AEC-Q101 requirements.
What is the reverse recovery time (trr) of the SFF1601G and under what test conditions?
The SFF1601G 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 temperature range and reflects the device's super fast recovery performance. It is critical for minimizing switching loss in high-frequency topologies like active-clamp forward and LLC resonant converters.
How does the ITO-220AB package of the SFF1601G differ from standard TO-220AB?
The ITO-220AB package used by the SFF1601G features an electrically insulated metal tab, unlike standard TO-220AB which has a conductive tab tied to the cathode. This insulation eliminates need for isolating hardware when mounting to grounded heatsinks. The SFF1601G's tab is rated for dielectric strength ≥2500 VRMS and complies with UL 94V-0 flammability requirements.
What is the typical forward voltage (VF) of the SFF1601G and how does it vary with temperature?
The SFF1601G exhibits a typical forward voltage of 0.975 V at IF = 8 A and TJ = 25°C. VF decreases with rising junction temperature-approximately –1.8 mV/°C-due to semiconductor physics. At 125°C, VF drops to ~0.79 V, reducing conduction loss but requiring accurate thermal modeling to ensure safe operation within the 150°C TJ limit.
SFF1601G 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):
- 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 @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
SFF1601G FAQ
1.How can I place an order for SFF1601G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFF1601G 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 SFF1601G reliable?
The price and inventory of SFF1601G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF1601G is usually 5 days.
3.What payment methods are accepted for SFF1601G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF1601G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFF1601G?
SFF1601G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFF1601G 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 SFF1601G?
For technical support, including SFF1601G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF1601G requirements.
6.How does Aetrix verify that SFF1601G is sourced from the original manufacturer or authorized distributors?
All SFF1601G 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 SFF1601G meets industry standards.
7.What is the process for return or replacement of SFF1601G?
All SFF1601G units undergo pre-shipment inspection (PSI). If there is an issue with SFF1601G, 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 SFF1601G part is unused and in its original packaging.
Return procedure for SFF1601G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFF1601G Tags
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