My Inquiry
My Account
Taiwan Semiconductor Corporation SFAS808GH
- Part No.:
- SFAS808GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SFAS808GH.pdf
- Description:
- DIODE GEN PURP 600V 8A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,600
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SFAS808GH from Taiwan Semiconductor is an 8A, 600V super fast surface-mount rectifier in TO-263AB (D2PAK) package, featuring 1.70V max forward voltage at 8A/25°C, 35ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-efficiency DC-DC converters and car lighting systems.
For engineers reviewing the SFAS808GH datasheet, SFAS808GH pinout, SFAS808GH application, or SFAS808GH equivalent, key selection criteria include its 600V VRRM, 125A IFSM, junction-to-case thermal resistance of 2.2°C/W, glass-passivated die, and RoHS/halogen-free compliance - all critical for thermally constrained, high-surge automotive power designs.
Technical Context
This single-die rectifier uses a planar epitaxial structure with glass passivation to achieve fast recovery (35ns) and low leakage (<10µA @ 25°C). Its 600V VRRM and 420V VR(RMS) support high-voltage DC bus clamping and snubbing in 48V+ automotive subsystems.
The TO-263AB package provides low thermal resistance (2.2°C/W) and robust solderability (J-STD-002), while AEC-Q101 qualification confirms performance across -55°C to +150°C junction temperature range under automotive stress conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse voltage; defines safe blocking capability in 48V–400V DC bus applications |
| IF | 8 A - Continuous forward current rating; supports sustained conduction in high-current freewheeling paths |
| IFSM | 125 A - Non-repetitive surge current (8.3ms); handles inductive kickback in relay or solenoid drive circuits |
| VF (max) | 1.70 V @ 8A, 25°C - Low conduction loss enabling >92% efficiency in 12V–48V DC-DC stages |
| trr | 35 ns - Fast reverse recovery minimizes switching losses and EMI in high-frequency (>100kHz) converters |
| RθJC | 2.2 °C/W - Enables direct heatsinking via exposed tab; allows 8A operation up to 115°C case temperature |
| Junction Temp | -55°C to +150°C - Full AEC-Q101 operating range for under-hood automotive environments |
Pinout & Package
TO-263AB (D2PAK) package with exposed cathode tab for thermal and electrical connection; 3-terminal configuration: Anode (lead 1), Cathode (lead 2 + tab), and no third functional terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to positive side of inductive load or switch node; must withstand full surge current |
| Cathode (Lead 2) | Forward current exit / reverse blocking node | Electrically tied to exposed metal tab; requires low-inductance PCB copper pour for thermal and EMI control |
| Exposed Tab | Cathode terminal & thermal path | Primary heat dissipation interface; must be soldered to ≥250 mm² copper area for rated 8A operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and UHAST per JESD47 |
| Glass passivated junction | Eliminates moisture-induced leakage drift and improves long-term reliability in humid environments |
| Low VF (1.70V max) | Reduces conduction loss by ≥15% vs. standard FRDs at 8A, lowering thermal design margin requirements |
| 35ns trr | Enables clean turn-off in 200–500kHz synchronous rectifier topologies without tail current oscillation |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| DC-DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48V→12V buck-boost converters for ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling diode synchronizing with primary-side MOSFET switching at 300kHz. Use Value: 35ns trr prevents reverse recovery overlap loss; 1.70V VF limits conduction loss to <1.4W at 8A. | Use Scenario: LED driver output stage in adaptive front lighting systems (AFS). IC Role / Device Role / Timing Role: Snubber diode clamping inductive flyback from PWM-driven LED strings. Use Value: 125A IFSM absorbs 100A+ transient surges during cold-crank; AEC-Q101 ensures 15-year field life. |
| Snubber Network | Freewheeling Circuit |
Use Scenario: RCD snubber across high-side IGBT in 400V battery disconnect module. IC Role / Device Role / Timing Role: Fast-recovery clamp diode dissipating stored inductive energy during turn-off. Use Value: 600V VRRM withstands 1.2× bus overvoltage; 2.2°C/W RθJC enables direct tab mounting to chassis ground. | Use Scenario: Inductive load freewheeling in 12V starter relay control circuit. IC Role / Device Role / Timing Role: Unidirectional current path bypassing coil back-EMF during de-energization. Use Value: Glass passivation prevents leakage rise at 100°C ambient; 8A IF sustains 30s continuous duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R06DJF | 600V VRRM, 8A IF, 30ns trr, TO-263AB, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial DC-DC but not under-hood deployment | Select when AEC-Q101 is not required and faster recovery (30ns vs. 35ns) is prioritized |
| VS-8EWH06FN-M3 | 600V VRRM, 8A IF, 45ns trr, TO-263AB, AEC-Q101 qualified, higher VF (1.85V max) | Higher conduction loss reduces efficiency in high-duty-cycle freewheeling | Select when broader temperature validation history is needed, accepting 0.15V higher VF |
Compared with STTH8R06DJF and VS-8EWH06FN-M3, the SFAS808GH uniquely balances AEC-Q101 compliance, 35ns recovery, and 1.70V VF - making it optimal for thermally constrained, high-surge automotive power stages where qualification and efficiency are both mandatory.
Availability
SFAS808GH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter secondary-side rectification, and snubber networks requiring stable component supply and AEC-Q101 assurance.
Supply support for SFAS808GH 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 SFAS80xGH series was designed specifically for high-reliability automotive power conversion - emphasizing fast recovery, thermal robustness, and qualification-grade process control for under-hood and lighting applications.
FAQ
What is the maximum junction temperature rating for SFAS808GH?
The SFAS808GH has a maximum junction temperature (TJ) of +150°C, validated across its full AEC-Q101 qualification profile. This rating permits operation in under-hood automotive environments where case temperatures reach 115°C, provided thermal design maintains RθJC ≤ 2.2°C/W. The SFAS808GH must not exceed this limit to ensure long-term reliability and parametric stability.
Is SFAS808GH pin-compatible with other devices in the SFAS80xGH family?
Yes, all SFAS80xGH variants - including SFAS801GH through SFAS808GH - share identical TO-263AB (D2PAK) packaging, pinout, and mechanical footprint. The SFAS808GH uses the same Anode/Cathode/Tab terminal arrangement and pad layout as the entire family, enabling voltage-rating scalability without PCB redesign.
Does SFAS808GH require derating at elevated ambient temperatures?
Yes, SFAS808GH forward current must be derated above 25°C ambient per its published derating curve. At 100°C case temperature, the maximum continuous IF drops to approximately 5.2A. Thermal design must account for RθJC = 2.2°C/W and system-level RθCA to avoid exceeding the +150°C TJ limit. The SFAS808GH datasheet Fig.1 provides exact derating values.
What is the reverse leakage current specification for SFAS808GH at 100°C?
At 100°C junction temperature and rated reverse voltage (600V), the SFAS808GH exhibits a maximum reverse leakage current (IR) of 400 µA, per its electrical specifications table. This value is measured under pulse conditions (PW = 30ms) and reflects stable performance under high-temperature automotive operating conditions. The SFAS808GH maintains low leakage due to its glass-passivated junction.
Can SFAS808GH be used in surface-mount reflow processes without damage?
Yes, SFAS808GH is qualified for standard lead-free reflow per J-STD-020, with Moisture Sensitivity Level (MSL) 1 - meaning unlimited floor life at ≤30°C/60% RH and compatibility with peak reflow temperatures up to 260°C. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the SFAS808GH package molding compound complies with UL 94V-0 flammability standards.
SFAS808GH 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):
- 600 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 @ 600 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAS808GH FAQ
1.How can I place an order for SFAS808GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAS808GH 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 SFAS808GH reliable?
The price and inventory of SFAS808GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAS808GH is usually 5 days.
3.What payment methods are accepted for SFAS808GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAS808GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAS808GH?
SFAS808GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAS808GH 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 SFAS808GH?
For technical support, including SFAS808GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAS808GH requirements.
6.How does Aetrix verify that SFAS808GH is sourced from the original manufacturer or authorized distributors?
All SFAS808GH 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 SFAS808GH meets industry standards.
7.What is the process for return or replacement of SFAS808GH?
All SFAS808GH units undergo pre-shipment inspection (PSI). If there is an issue with SFAS808GH, 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 SFAS808GH part is unused and in its original packaging.
Return procedure for SFAS808GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFAS808GH Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
