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Taiwan Semiconductor Corporation SFAF2008G C0G
- Part No.:
- SFAF2008G C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF2008G C0G.pdf
- Description:
- DIODE GEN PURP 600V 20A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,354
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Product details
Overview
SFAF2008G from Taiwan Semiconductor is a 20A, 600V super fast rectifier diode in ITO-220AC package, featuring 1.700V forward voltage at 20A/25°C, 35ns reverse recovery time, and 150°C maximum junction temperature. It serves as a high-efficiency freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the SFAF2008G datasheet, SFAF2008G pinout, SFAF2008G application, or SFAF2008G equivalent, key selection criteria include VRRM = 600V, IF = 20A, trr = 35ns, RθJC = 3°C/W, and AEC-Q101 qualification availability (SFAF2008GH variant).
Technical Context
This super fast rectifier uses glass-passivated silicon die to achieve low conduction loss and rapid carrier recombination. Its 35ns reverse recovery time enables operation in 100–500 kHz SMPS topologies while maintaining low switching loss.
The ITO-220AC package provides low thermal resistance (RθJC = 3°C/W) and mechanical robustness for through-hole mounting with 0.56 N·m max torque. Polarity is marked on the case, and terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines usable DC bus or output voltage range |
| IF | 20 A - Continuous forward current rating at case temperature ≤ 85°C; sets heatsink sizing baseline |
| trr | 35 ns - Reverse recovery time at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables high-frequency hard-switched converters |
| VF | 1.700 V @ 20A, 25°C - Forward voltage drop; determines conduction loss and thermal load at full load |
| RθJC | 3 °C/W - Junction-to-case thermal resistance; allows direct calculation of ΔTJ-C under power dissipation |
| IFSM | 200 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current handling |
| CJ | 150 pF @ 1 MHz, 4.0 V - Junction capacitance; impacts EMI and snubber design in high-dv/dt circuits |
Pinout & Package
ITO-220AC package: single-ended, 3-terminal through-hole outline with isolated tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and polarity marking on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (metal surface) | Cathode | Electrically connected to cathode; requires insulated mounting if not referenced to system ground |
| Lead 1 (left) | Anode | Main anode connection; carries full forward current path |
| Lead 2 (right) | No connection | Internal isolation; no electrical function - mechanical support only |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability and moisture resistance without epoxy encapsulation dependency |
| UL Recognized (E-326243) | Validates flammability, creepage, and construction compliance for end-equipment safety certification |
| AEC-Q101 qualified option (SFAF2008GH) | Supports automotive-grade stress testing including temperature cycling, HTRB, and ESD per AEC standard |
| Low RθJC = 3°C/W | Reduces thermal interface requirements and enables higher ambient operation without derating |
| JESD201 Class 2 whisker resistance | Ensures solder joint integrity over lifetime in vibration-prone industrial environments |
Applications
| DC–DC Converter Output Rectification | Switching Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous or diode rectification in isolated 48V–600V output DC–DC converters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Primary unidirectional current path during flyback/flybuck conduction phase; blocks reverse voltage during transformer reset. Use Value: 35ns trr minimizes reverse recovery loss; 600V VRRM supports wide input/output voltage ranges without series stacking. | Use Scenario: Freewheeling path across inductive loads (e.g., motor windings, solenoids) in 3-phase bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current when main switch turns off; clamps voltage spikes. Use Value: 200A IFSM withstands motor stall surges; 1.7V VF reduces conduction loss versus standard FRDs. |
| Industrial SMPS Input Stage | High-Voltage Auxiliary Supply |
Use Scenario: PFC boost diode or front-end rectifier in 3kW+ industrial switch-mode power supplies with 400V AC input. IC Role / Device Role / Timing Role: Conducts line-frequency and high-frequency ripple current; blocks reverse voltage during zero-crossings. Use Value: 20A IF rating supports continuous conduction mode; glass passivation ensures stability under thermal cycling. | Use Scenario: Isolated auxiliary bias supply (e.g., gate driver or control IC supply) derived from main DC bus up to 600V. IC Role / Device Role / Timing Role: High-voltage rectifier feeding linear regulator or small flyback controller; operates at low duty cycle. Use Value: 10 µA max IR at 25°C ensures minimal standby leakage; 150°C TJMAX allows compact layout near hot components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2006D | VRRM = 600V, trr = 35ns, VF = 1.75V @ 20A, RθJC = 3.5°C/W, TO-220AC package | Higher VF and thermal resistance; slightly lower surge rating (175A) | Acceptable where 0.05V higher drop and +0.5°C/W thermal penalty are tolerable |
| IXYS MUR2060CT | Dual common-cathode configuration, VRRM = 600V per diode, trr = 35ns, VF = 1.7V @ 10A/diode, TO-220AB package | Requires redesign for single-diode use; dual layout incompatible with ITO-220AC footprint | Only suitable if dual-diode topology and PCB real estate allow footprint change |
Compared with STTH2006D and IXYS MUR2060CT, the SFAF2008G offers lower thermal resistance and tighter VF tolerance within its family, making it preferable for thermally constrained 20A designs where single-diode ITO-220AC mounting is required.
Availability
SFAF2008G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and industrial SMPS requiring stable component supply with consistent parametric performance across production lots.
Supply support for SFAF2008G 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 SFAF2008G belongs to TSC's Super Fast Rectifier product line, engineered specifically for high-frequency switching power conversion where low trr, stable VF, and rugged thermal performance are critical.
FAQ
What is the maximum junction temperature rating for the SFAF2008G?
The SFAF2008G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows operation in high-ambient environments when paired with appropriate heatsinking. Derating curves in the datasheet define allowable IF vs. case temperature, and the SFAF2008G must be operated within those limits to maintain reliability. The 150°C rating applies to both standard and AEC-Q101-qualified (SFAF2008GH) variants.
Does the SFAF2008G have AEC-Q101 qualification?
The base SFAF2008G is not AEC-Q101 qualified; however, the variant SFAF2008GH is explicitly qualified per AEC-Q101. The "H" suffix denotes full stress testing including HTGB, HTRB, temperature cycling, and ESD. No other suffix or marking indicates automotive qualification. Engineers requiring automotive-grade assurance must specify SFAF2008GH and verify packaging and traceability documentation.
What is the reverse recovery time (trr) test condition for the SFAF2008G?
The SFAF2008G reverse recovery time is specified as 35 ns under the condition: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, measured using the test circuit in Figure 6 of the datasheet. This reflects behavior in typical hard-switched converter turn-off transitions. trr remains stable across the SFAF2005G–SFAF2008G family due to shared die process and structure.
How is polarity marked on the SFAF2008G ITO-220AC package?
Polarity on the SFAF2008G is marked on the device body with a cathode band adjacent to the tab. The metal tab is electrically connected to the cathode, and Lead 1 (left pin) is the anode. Lead 2 (right pin) is internally isolated and serves only as mechanical support. Mounting must ensure cathode-side insulation if the tab is not at system ground potential.
What is the junction capacitance (CJ) value for the SFAF2008G and at what conditions is it measured?
The SFAF2008G exhibits a typical junction capacitance (CJ) of 150 pF, measured at 1 MHz and 4.0 V reverse bias. This value applies to all members of the SFAF2005G–SFAF2008G group and is relevant for snubber design and EMI filter modeling. CJ decreases with increasing reverse voltage and is stable across temperature per characterization curves in the datasheet.
SFAF2008G C0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 V
- Capacitance @ Vr, F:
- 150pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAF2008G C0G FAQ
1.How can I place an order for SFAF2008G C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF2008G C0G 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 SFAF2008G C0G reliable?
The price and inventory of SFAF2008G C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF2008G C0G is usually 5 days.
3.What payment methods are accepted for SFAF2008G C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF2008G C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF2008G C0G?
SFAF2008G C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF2008G C0G 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 SFAF2008G C0G?
For technical support, including SFAF2008G C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF2008G C0G requirements.
6.How does Aetrix verify that SFAF2008G C0G is sourced from the original manufacturer or authorized distributors?
All SFAF2008G C0G 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 SFAF2008G C0G meets industry standards.
7.What is the process for return or replacement of SFAF2008G C0G?
All SFAF2008G C0G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF2008G C0G, 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 SFAF2008G C0G part is unused and in its original packaging.
Return procedure for SFAF2008G C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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