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Taiwan Semiconductor Corporation SFAS802GH
- Part No.:
- SFAS802GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SFAS802GH.pdf
- Description:
- 35NS, 8A, 100V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:9,808
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Product details
Overview
SFAS802GH from Taiwan Semiconductor is an AEC-Q101-qualified super fast surface-mount rectifier in TO-263AB (D2PAK) package, rated for 100 V repetitive peak reverse voltage (VRRM), 8 A average forward current (IF), and 125 A non-repetitive surge current (IFSM). It delivers low forward voltage (0.95 V at 8 A, 25°C) and ultra-fast reverse recovery (35 ns), making it suitable for automotive DC-DC converters and freewheeling circuits.
For engineers reviewing the SFAS802GH datasheet, SFAS802GH pinout, SFAS802GH application, or SFAS802GH equivalent, key selection criteria include its AEC-Q101 qualification, 100 V VRRM, 0.95 V VF at full load, 35 ns trr, and TO-263AB thermal performance (RθJC = 2.2°C/W).
Technical Context
The SFAS802GH uses a glass-passivated silicon junction to achieve high reliability under automotive thermal cycling and humidity stress. Its single-die configuration and TO-263AB package support high-power density mounting with low thermal resistance to heatsink.
Designed for high-efficiency switching applications, it combines low conduction loss (VF = 0.95 V) and minimal switching loss (trr = 35 ns, CJ = 80 pF), enabling operation in 100 kHz–500 kHz DC-DC topologies without excessive snubber losses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum blocking voltage in reverse bias; defines usable input range in 12 V/24 V automotive DC-DC stages |
| IF | 8 A continuous - Sustains full-load current at TC ≤ 115°C without derating; supports compact heatsink designs |
| VF | 0.95 V @ 8 A, 25°C - Reduces conduction loss to ~7.6 W per device; critical for thermal management in sealed enclosures |
| trr | 35 ns - Limits reverse recovery charge (Qrr ≈ 17.5 nC), minimizing EMI and diode-induced switching loss |
| RθJC | 2.2°C/W - Enables direct heatsink mounting; allows 110°C junction rise with only 242 W/m² case-to-heatsink interface power density |
| IFSM | 125 A @ 8.3 ms - Withstands cold-crank surges and load-dump transients common in 12 V vehicle electrical systems |
| Junction Temp | -55°C to +150°C - Fully operational across automotive ambient (-40°C to +125°C) with 25°C safety margin |
Pinout & Package
TO-263AB (D2PAK) package with three terminals: Anode (pin 1), Cathode (pin 2), and exposed thermal pad (pin 3, electrically connected to cathode). Matte tin-plated leads meet J-STD-002 solderability; polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connects to switched node or inductive source; must withstand full IF and IFSM current density |
| Cathode | Output terminal for forward conduction path | Electrically tied to thermal pad; requires low-inductance PCB copper pour for EMI control and thermal dissipation |
| Thermal Pad | Heatsink interface and cathode extension | Provides primary thermal path to PCB; minimum 200 mm² copper area recommended for RθJA ≤ 40°C/W |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HAST, UHST) |
| Glass-passivated junction | Eliminates moisture ingress risk at chip edges; extends lifetime under 85°C/85% RH bias conditions |
| Low VF (0.95 V) | Reduces power loss by ≥15% vs. standard fast rectifiers at 8 A, directly lowering system thermal load |
| 35 ns trr | Enables higher-frequency operation without added snubber losses; compatible with synchronous rectification timing windows |
| Moisture Sensitivity Level 1 | Zero bake requirement before reflow; supports standard SMT assembly without dry-pack handling |
Applications
| Automotive DC-DC Converters | LED Headlamp Drivers |
|---|---|
Use Scenario: Step-down conversion from 12 V battery to 5 V/3.3 V for ADAS camera modules and infotainment ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter; handles reverse recovery during high-side FET turn-on. Use Value: 35 ns trr minimizes shoot-through risk and reduces gate driver stress; AEC-Q101 ensures field reliability over 15-year vehicle life. | Use Scenario: Constant-current LED string regulation in adaptive front lighting systems (AFS) with PWM dimming. IC Role / Device Role / Timing Role: Snubber diode across boost inductor; clamps inductive kick during MOSFET off-time. Use Value: 125 A IFSM withstands lamp short-circuit events; low VF maintains efficiency >92% at full brightness. |
| Engine Control Unit Power Supplies | On-Board Charger Auxiliary Rails |
Use Scenario: Input rectification and hold-up in 5 V/1 A auxiliary supply for microcontroller and sensor biasing. IC Role / Device Role / Timing Role: Output rectifier in flyback converter; conducts during transformer reset phase. Use Value: Glass passivation prevents parametric shift after 1000 thermal cycles; RθJC = 2.2°C/W enables convection-only cooling. | Use Scenario: Isolated auxiliary supply (12 V @ 2 A) powering gate drivers and communication ICs in 3.3 kW OBC modules. IC Role / Device Role / Timing Role: Secondary-side rectifier in forward converter; operates at 100 kHz switching frequency. Use Value: 80 pF junction capacitance limits capacitive coupling noise into CAN/LIN buses; halogen-free construction meets EU ELV directive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-8EWH10FN-M3 | Same VRRM (100 V), IF (8 A), but higher VF (1.15 V) and slower trr (50 ns); TO-263AB package | Higher conduction loss increases thermal load in sealed enclosures; less suitable for >200 kHz operation | Select when cost sensitivity outweighs efficiency and EMI targets |
| ON Semiconductor MUR8100CT | Dual common-cathode die in TO-220AC; VRRM = 100 V, IF = 8 A per diode, VF = 1.25 V, trr = 75 ns | Requires dual-layout routing; larger footprint and higher RθJA; not AEC-Q101 qualified | Select only for non-automotive industrial use where qualification is not required |
Compared with VS-8EWH10FN-M3 and MUR8100CT, the SFAS802GH provides superior efficiency (0.95 V vs. ≥1.15 V), faster switching (35 ns vs. ≥50 ns), and automotive qualification-critical for thermally constrained, high-reliability vehicle subsystems.
Availability
SFAS802GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp drivers, and engine control unit power supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for SFAS802GH 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 automotive, industrial, and consumer markets since 1979.
The SFAS802GH belongs to TSC's AEC-Q101-qualified super fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive electrification systems.
FAQ
What is the maximum junction temperature rating for SFAS802GH?
The SFAS802GH has a maximum junction temperature (TJ) of +150°C, verified per AEC-Q101 stress testing. This rating allows operation in under-hood environments up to +125°C ambient with appropriate thermal design. Derating begins above TC = 115°C per the forward current derating curve in the official datasheet. The SFAS802GH maintains full 8 A IF capability below this threshold.
Is SFAS802GH pin-compatible with other devices in the SFAS80xGH family?
Yes, all SFAS80xGH devices-including SFAS802GH-share identical TO-263AB (D2PAK) mechanical dimensions, pinout, and thermal pad layout. Voltage ratings differ (50 V to 600 V), but PCB footprint, solder stencil, and assembly process are fully interchangeable. The SFAS802GH marking code "SFAS802G" is laser-etched on the top surface for visual identification.
Does SFAS802GH require special handling for moisture sensitivity?
No. The SFAS802GH is rated Moisture Sensitivity Level 1 (MSL-1) per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. This eliminates dry-pack requirements and simplifies SMT line integration. The SFAS802GH's matte tin-plated leads also comply with J-STD-002 for solderability assurance.
What is the reverse recovery time (trr) test condition for SFAS802GH?
The SFAS802GH reverse recovery time is measured at IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A, per JEDEC standard test circuit (Fig.6 in the datasheet). The typical trr is 35 ns, with no maximum specified-indicating consistent performance across production lots. This value applies directly to the SFAS802GH and is validated across its full operating temperature range.
Can SFAS802GH be used in non-automotive applications?
Yes, the SFAS802GH is suitable for industrial and consumer power supplies where high efficiency and fast switching are needed. Its 100 V VRRM, 8 A IF, and 35 ns trr make it effective in 48 V telecom rectifiers, server VRMs, and high-brightness LED drivers. While AEC-Q101 qualification adds robustness, the SFAS802GH's core specs remain fully applicable outside automotive contexts.
SFAS802GH 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):
- 100 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAS802GH FAQ
1.How can I place an order for SFAS802GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAS802GH 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 SFAS802GH reliable?
The price and inventory of SFAS802GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAS802GH is usually 5 days.
3.What payment methods are accepted for SFAS802GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAS802GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAS802GH?
SFAS802GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAS802GH 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 SFAS802GH?
For technical support, including SFAS802GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAS802GH requirements.
6.How does Aetrix verify that SFAS802GH is sourced from the original manufacturer or authorized distributors?
All SFAS802GH 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 SFAS802GH meets industry standards.
7.What is the process for return or replacement of SFAS802GH?
All SFAS802GH units undergo pre-shipment inspection (PSI). If there is an issue with SFAS802GH, 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 SFAS802GH part is unused and in its original packaging.
Return procedure for SFAS802GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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