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Taiwan Semiconductor Corporation SFAS807G
- Part No.:
- SFAS807G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SFAS807G.pdf
- Description:
- 35NS, 8A, 500V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:7,276
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Product details
Overview
SFAS807G from Taiwan Semiconductor is an 8A, 600V super fast surface-mount rectifier in TO-263AB (D2PAK) package, designed for high-efficiency DC-DC conversion and freewheeling paths where low forward voltage and fast recovery are critical. It delivers VF = 1.70 V at 8A/25°C, trr = 35 ns, IR ≤ 10 µA at 25°C, and RθJC = 2.2°C/W.
For engineers reviewing the SFAS807G datasheet, SFAS807G pinout, SFAS807G application, or SFAS807G equivalent, key selection factors include its 600V VRRM rating, 125A IFSM surge capability, thermal performance in high-power switching topologies, and compatibility with automated SMT assembly per J-STD-002.
Technical Context
The SFAS807G is a single-die, glass-passivated silicon rectifier optimized for high-frequency switching applications. Its 35 ns reverse recovery time and 60 pF junction capacitance support efficient operation in SMPS operating up to several hundred kHz.
It operates across -55°C to +150°C junction temperature range with moisture sensitivity level 1 (J-STD-020), matte tin-plated leads, and UL 94V-0 molding compound - enabling reliable use in industrial-grade power converters requiring long-term thermal stability and lead-free solder compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse voltage the device blocks without breakdown in normal operation |
| IF | 8 A - continuous average forward current rating at TC = 110°C, defining steady-state conduction capacity |
| IFSM | 125 A - non-repetitive peak surge current (8.3 ms half-sine), supporting inrush and fault transient handling |
| VF @ 8A, 25°C | 1.70 V - forward voltage drop determining conduction loss and thermal load under rated DC current |
| trr | 35 ns - reverse recovery time governing switching loss and EMI generation in hard-switched topologies |
| RθJC | 2.2 °C/W - junction-to-case thermal resistance, enabling direct heatsink mounting for thermal management |
| CJ @ 1 MHz, 4 V | 60 pF - junction capacitance affecting high-frequency impedance and snubber design requirements |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, single-anode/single-cathode configuration with exposed drain tab (cathode-connected thermal pad). Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Forward current input terminal | Connected to source/switch node in freewheeling or output rectification path |
| Cathode (Lead 3 + Tab) | Forward current output / thermal interface | Electrically and thermally connected to PCB copper pour or heatsink; carries full output current |
| Lead 1 (NC) | No connection | Internally unconnected; must remain unbonded and isolated on PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable leakage performance and long-term reliability under humid or high-bias stress conditions |
| Super fast recovery (35 ns) | Reduces switching losses and diode-induced ringing in 100–500 kHz SMPS designs |
| Low VF (1.70 V @ 8A) | Lowers conduction loss by ~15% vs. standard FRDs with comparable VRRM, improving efficiency at full load |
| TO-263AB thermal pad | Supports >3 W power dissipation with 25°C/W board-level thermal resistance using 2-in² 2-oz copper |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing cost and process complexity |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side synchronous or asynchronous rectification in isolated 48V–60V output telecom or server PSUs. IC Role / Device Role / Timing Role: Unidirectional current steering and energy transfer during switch off-time; handles 8A continuous output current. Use Value: 1.70 V VF minimizes conduction loss at high load; 600V VRRM provides margin against reflected transients in flyback or forward converters. | Use Scenario: Freewheeling path across IGBTs or MOSFETs in 3-phase motor inverters operating up to 400V DC bus. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during switching transitions; clamps inductive kickback. Use Value: 35 ns trr limits turn-off switching loss and reduces gate drive stress; 125A IFSM withstands motor stall surges. |
| High-Frequency SMPS Input Stage | Industrial AC-DC Front-End Bridge Leg |
Use Scenario: PFC boost diode in active clamp or CCM boost converters running at 200–300 kHz. IC Role / Device Role / Timing Role: High-speed unidirectional conduction during boost switch off-phase; sustains 600V reverse blocking. Use Value: 60 pF CJ reduces capacitive loading on gate drivers; low IR (<10 µA) maintains efficiency at elevated ambient temperatures. | Use Scenario: Single-leg replacement in discrete bridge rectifiers for 3-phase 400VAC industrial drives. IC Role / Device Role / Timing Role: High-current, high-voltage rectification in line-commutated or forced-commutated front ends. Use Value: TO-263AB package enables direct heatsink mounting; 150°C TJ max supports operation in sealed enclosures without forced air. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R06DJF | 600V VRRM, 8A IF, VF = 1.75 V @ 8A, trr = 30 ns, TO-263AB package | Slightly faster recovery but higher VF; same thermal footprint | Preferred where lower trr dominates over conduction loss trade-off |
| VS-8EWH06FN-M3 | 600V VRRM, 8A IF, VF = 1.65 V @ 8A, trr = 45 ns, TO-263AB package | Lower VF but slower recovery; higher IR (50 µA @ 25°C) | Better for continuous conduction mode where switching loss is secondary to conduction loss |
Compared with STTH8R06DJF and VS-8EWH06FN-M3, the SFAS807G offers the best balance of VF (1.70 V), trr (35 ns), and leakage (≤10 µA), making it optimal for medium-frequency SMPS where both conduction and switching losses must be tightly managed.
Availability
SFAS807G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial AC-DC front-ends requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for SFAS807G 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 global industrial, computing, and automotive markets since 1979.
The SFAS807G belongs to TSC's SFAS super-fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in space-constrained SMT applications demanding robust surge capability and low thermal resistance.
FAQ
What is the maximum junction temperature rating for SFAS807G?
The SFAS807G has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table. This allows operation in high-ambient environments such as enclosed industrial power supplies or motor drives. Derating curves confirm usable current down to TC = 110°C at full 8A rating, and thermal design must respect RθJC = 2.2°C/W when mounting to heatsinks or copper planes.
Does SFAS807G support lead-free reflow soldering?
Yes, SFAS807G features matte tin-plated leads compliant with J-STD-002 for solderability and meets JEDEC JESD201 Class 2 whisker resistance. Its moisture sensitivity level is 1 per J-STD-020, eliminating pre-reflow baking. The UL 94V-0 molding compound ensures stability through standard Pb-free reflow profiles (peak 260°C).
What is the reverse recovery time (trr) specification for SFAS807G?
The SFAS807G has a typical reverse recovery time (trr) of 35 ns, measured at IF = 0.5A, IR = 1.0A, and Irr = 0.25A. This value is confirmed in the Electrical Specifications table and applies across the full operating temperature range. It enables efficient operation in switching power supplies operating up to 300 kHz without excessive switching loss or EMI.
Is SFAS807G pin-compatible with other devices in the SFAS801G–SFAS808G series?
Yes, all SFAS801G–SFAS808G devices share identical TO-263AB (D2PAK) mechanical outline, pin assignment, and thermal pad configuration. The only differences are VRRM (50V–600V) and VF (0.95–1.70 V), allowing direct substitution within the same voltage class when thermal and electrical margins permit.
What is the marking code for SFAS807G on the device body?
The SFAS807G is marked with "SFAS807G" on the top surface, followed by green compound indicator "G", date code (YWW), and factory code "F". This marking aligns with the Ordering Information table and confirms authenticity and voltage grade (600V) at visual inspection - no decoding required for identification.
SFAS807G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 500 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 500 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAS807G FAQ
1.How can I place an order for SFAS807G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAS807G 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 SFAS807G reliable?
The price and inventory of SFAS807G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAS807G is usually 5 days.
3.What payment methods are accepted for SFAS807G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAS807G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAS807G?
SFAS807G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAS807G 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 SFAS807G?
For technical support, including SFAS807G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAS807G requirements.
6.How does Aetrix verify that SFAS807G is sourced from the original manufacturer or authorized distributors?
All SFAS807G 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 SFAS807G meets industry standards.
7.What is the process for return or replacement of SFAS807G?
All SFAS807G units undergo pre-shipment inspection (PSI). If there is an issue with SFAS807G, 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 SFAS807G part is unused and in its original packaging.
Return procedure for SFAS807G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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