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Taiwan Semiconductor Corporation SFAS804GH
- Part No.:
- SFAS804GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SFAS804GH.pdf
- Description:
- DIODE GEN PURP 200V 8A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,550
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Product details
Overview
SFAS804GH from Taiwan Semiconductor is a single-die, super fast recovery surface-mount rectifier in TO-263AB (D2PAK) package, rated for 8 A average forward current, 200 V repetitive peak reverse voltage (VRRM), and 35 ns reverse recovery time (trr). It serves as a freewheeling or snubber diode in high-frequency DC/DC converters and automotive lighting circuits where low conduction loss and fast switching are critical.
For engineers reviewing the SFAS804GH datasheet, SFAS804GH pinout, SFAS804GH application, or SFAS804GH equivalent, key selection factors include its 0.95 V forward voltage at 8 A/25°C, 125 A non-repetitive surge rating, 2.2 °C/W junction-to-case thermal resistance, J-STD-020 Level 1 moisture sensitivity, and AEC-Q101 qualification for automotive use.
Technical Context
The SFAS804GH employs a glass-passivated silicon junction optimized for super-fast recovery (trr = 35 ns), enabling efficient operation in switching frequencies up to several hundred kHz. Its 200 V VRRM and 8 A IF rating target mid-voltage power conversion stages where low VF and minimal reverse recovery charge reduce system losses.
Thermally, the TO-263AB package delivers RθJC = 2.2 °C/W, supporting high-power-density layouts with direct heatsinking via the exposed cathode tab. The device is fully RoHS-compliant and halogen-free per IEC 61249-2-21, with matte tin-plated leads qualified per J-STD-002 and JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum blocking voltage in repetitive reverse bias; defines usable input/output voltage range in DC/DC and snubber circuits |
| IF | 8 A - Continuous average forward current at TC = 110°C; sets steady-state power handling capability |
| trr | 35 ns - Reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables high-frequency switching with low switching loss |
| VF | 0.95 V max @ 8 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal design in high-current paths |
| CJ | 80 pF @ 1 MHz, 4.0 V - Junction capacitance affects high-frequency noise and EMI in snubber and freewheeling applications |
| RθJC | 2.2 °C/W - Thermal resistance from junction to case; determines heatsink sizing when mounting cathode tab to PCB copper or external heatsink |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, with exposed cathode tab for thermal and electrical connection. Polarity marked on top surface; anode and cathode terminals defined per standard D2PAK pinout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate trace width for 8 A continuous current |
| Cathode (Tab) | Forward current exit / thermal path | Exposed metal tab serves as both cathode terminal and primary thermal interface; must be soldered to large copper pour or heatsink |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suitable for under-hood and lighting modules |
| Glass-passivated junction | Enhances long-term stability and humidity resistance versus epoxy-passivated alternatives; improves field reliability in harsh environments |
| Low VF (0.95 V) | Reduces conduction loss by ~15–20% vs. standard fast rectifiers at 8 A, lowering thermal stress in compact DC/DC designs |
| High IFSM (125 A) | Withstands transient surges from inductive kickback or load dump without failure-critical in automotive freewheeling paths |
| J-STD-020 Level 1 MSL | Zero floor life limitation; can be stored indefinitely before reflow, eliminating bake requirements and simplifying SMT line logistics |
Applications
| DC/DC Converter Output Rectification | Automotive LED Headlamp Driver |
|---|---|
Use Scenario: High-efficiency synchronous or quasi-resonant buck converter operating at 200–500 kHz in industrial or telecom power supplies. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side switch off-time; handles 8 A average output current with minimal voltage drop. Use Value: 0.95 V VF reduces conduction loss by ~0.76 W vs. 1.1 V alternatives at 8 A, easing thermal management in sealed enclosures. | Use Scenario: Constant-current LED driver for adaptive front lighting systems (AFS), subject to load dump transients and wide ambient temperature swings. IC Role / Device Role / Timing Role: Snubber diode clamping inductive energy from boost inductor during PWM dimming transitions. Use Value: 35 ns trr minimizes voltage overshoot and ringing during fast turn-off, protecting MOSFETs and improving EMI compliance. |
| Car Interior Lighting Power Supply | Industrial Motor Drive Snubber |
Use Scenario: 12 V–24 V input power module powering RGB LED strips and ambient lighting in passenger compartments. IC Role / Device Role / Timing Role: Output rectifier in isolated flyback converter; operates continuously at 5–8 A with ambient temperatures up to 85°C. Use Value: AEC-Q101 qualification and -55°C to +150°C TJ range ensure reliable startup and operation across vehicle lifecycle conditions. | Use Scenario: RC snubber network across IGBTs in 3-phase inverter drives for HVAC compressors or pumps. IC Role / Device Role / Timing Role: Fast recovery diode absorbing turn-off energy from motor inductance; subjected to repeated 200 V, 10 A transients. Use Value: 125 A IFSM and 2.2 °C/W RθJC allow robust snubbing without derating, even with limited heatsinking in compact drive modules. |
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-8EWH02FN-M3/45 | Same TO-263AB package, 200 V VRRM, 8 A IF, but trr = 25 ns (faster), VF = 0.92 V (slightly lower) | Higher cost; preferred where <25 ns trr is required for >1 MHz operation | Select if tighter switching timing control or lower EMI is prioritized over cost |
| ON Semiconductor MUR820G | TO-220AC package (not surface-mount), same 200 V/8 A rating, trr = 35 ns, VF = 0.97 V, but no AEC-Q101 qualification | Requires through-hole assembly; unsuitable for automated SMT lines or automotive qualification requirements | Consider only for non-automotive, cost-sensitive prototyping with manual assembly |
Compared with VS-8EWH02FN-M3/45 and MUR820G, the SFAS804GH uniquely combines AEC-Q101 qualification, surface-mount TO-263AB packaging, and balanced 35 ns / 0.95 V performance-making it optimal for production automotive and high-reliability industrial SMT power supplies where qualification, manufacturability, and thermal efficiency are jointly critical.
Availability
SFAS804GH is available at Aetrix Electronics and suitable for DC/DC converter output rectification, automotive LED headlamp drivers, and industrial motor drive snubber circuits requiring stable component supply, automotive-grade reliability, and high-volume SMT compatibility.
Supply support for SFAS804GH 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs for industrial and automotive markets.
The SFAS80xGH series was designed specifically for high-frequency, high-reliability surface-mount rectification in automotive lighting and power conversion, emphasizing AEC-Q101 compliance, low VF, and fast recovery in D2PAK packaging.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for SFAS804GH?
The SFAS804GH has a VRRM of 200 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2103). This value is fixed per the part number suffix '04' in SFAS804GH and applies across all operating conditions unless derated per the forward current derating curve. Exceeding 200 V in repetitive reverse bias risks junction breakdown.
Is SFAS804GH qualified for automotive applications?
Yes, SFAS804GH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive lighting, body control modules, and other non-safety-critical vehicle systems.
What is the forward voltage (VF) of SFAS804GH at rated current?
The SFAS804GH exhibits a maximum forward voltage of 0.95 V at IF = 8 A and TJ = 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss for thermal design. At higher junction temperatures, VF decreases slightly due to negative temperature coefficient of silicon diodes.
Does SFAS804GH have a specified reverse recovery time (trr)?
Yes, SFAS804GH has a typical reverse recovery time of 35 ns, tested at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as documented in the Electrical Specifications table. This parameter is consistent across the SFAS801GH–SFAS804GH subgroup and confirms its classification as a super fast recovery rectifier suitable for switching frequencies up to 500 kHz.
What package type does SFAS804GH use, and is it RoHS compliant?
SFAS804GH uses the TO-263AB (D2PAK) surface-mount package with an exposed cathode tab, and it is fully RoHS compliant and halogen-free per IEC 61249-2-21. The device meets J-STD-020 Moisture Sensitivity Level 1, meaning it has unlimited floor life and requires no baking prior to reflow soldering.
SFAS804GH 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):
- 200 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 @ 200 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
SFAS804GH FAQ
1.How can I place an order for SFAS804GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAS804GH 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 SFAS804GH reliable?
The price and inventory of SFAS804GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAS804GH is usually 5 days.
3.What payment methods are accepted for SFAS804GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAS804GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAS804GH?
SFAS804GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAS804GH 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 SFAS804GH?
For technical support, including SFAS804GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAS804GH requirements.
6.How does Aetrix verify that SFAS804GH is sourced from the original manufacturer or authorized distributors?
All SFAS804GH 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 SFAS804GH meets industry standards.
7.What is the process for return or replacement of SFAS804GH?
All SFAS804GH units undergo pre-shipment inspection (PSI). If there is an issue with SFAS804GH, 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 SFAS804GH part is unused and in its original packaging.
Return procedure for SFAS804GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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