My Inquiry
My Account
Taiwan Semiconductor Corporation SFA804GH
- Part No.:
- SFA804GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
SFA804GH.pdf
- Description:
- 35NS, 8A, 200V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SFA804GH from Taiwan Semiconductor is an AEC-Q101-qualified super fast rectifier diode in TO-220AC package, rated for 200 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 drop (0.975 V at 8 A, 25°C) and ultra-fast reverse recovery (35 ns), making it suitable for high-frequency switching power supplies in automotive and industrial DC-DC converters.
For engineers reviewing the SFA804GH datasheet, SFA804GH pinout, SFA804GH application, or SFA804GH equivalent, key selection considerations include its 200 V VRRM, 35 ns trr, TO-220AC thermal performance (RθJC = 4°C/W), AEC-Q101 qualification, and junction temperature range of –55°C to +150°C.
Technical Context
This device is a single-die, unidirectional super fast recovery rectifier optimized for high-efficiency, high-frequency operation in hard-switched topologies. Its 35 ns reverse recovery time and low 100 pF junction capacitance minimize switching losses and EMI generation during turn-off transitions.
The SFA804GH operates with a maximum junction temperature of 150°C and exhibits low forward voltage (0.975 V typ. at 8 A, 25°C) and low leakage (10 µA max at 25°C, 200 V), supporting thermally constrained designs in compact power converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum reverse blocking voltage before breakdown; defines usable input voltage range in flyback or boost stages |
| IF | 8 A - Continuous average forward current rating; determines heatsink sizing and conduction loss budget |
| IFSM | 125 A - Peak non-repetitive surge current capability; supports inrush and fault-current handling without failure |
| trr | 35 ns - Reverse recovery time; enables operation up to ~3 MHz switching frequencies with minimal commutation loss |
| VF | 0.975 V (typ, 8 A, 25°C) - Low forward drop reduces conduction loss and improves efficiency in high-current paths |
| RθJC | 4°C/W - Junction-to-case thermal resistance; allows direct mounting to heatsink with predictable thermal rise under load |
| Junction temp | –55°C to +150°C - Wide operating range supports under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: TO-220AC - Three-terminal, through-hole plastic power package with isolated tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to source/switch node in freewheeling or output rectification path |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Electrically connected to metal tab; must be isolated from heatsink unless cathode-referenced layout |
| Tab (Cathode) | Integrated cathode terminal | Provides low-inductance, high-current cathode path; requires insulating washer if mounted to grounded heatsink |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Super fast recovery (35 ns) | Enables high-frequency SMPS operation while minimizing reverse recovery charge (Qrr) and associated switching loss |
| Low VF (0.975 V @ 8 A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, improving system efficiency and thermal margin |
| TO-220AC with RθJC = 4°C/W | Supports >6 W continuous power dissipation with moderate heatsinking, simplifying thermal design |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and global environmental compliance mandates for automotive and industrial end equipment |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12 V to 48 V bidirectional DC-DC converter in 48 V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Output synchronous rectifier (cathode-connected to 48 V rail) handling 8 A continuous current with fast transient response. Use Value: 35 ns trr and AEC-Q101 qualification ensure robust operation across –40°C to +125°C under hood, reducing EMI and improving efficiency over legacy rectifiers. | Use Scenario: Secondary-side rectification in 300 W telecom open-frame PSU with 100 kHz–300 kHz operation. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward topology, conducting during MOSFET off-time. Use Value: 0.975 V VF lowers conduction loss by ~0.8 W vs. comparable 200 V fast diodes, directly improving full-load efficiency and easing thermal management. |
| Server VRM Output Stage | Renewable Energy Inverters |
Use Scenario: High-current output rectification in 48 V server voltage regulator module with multiphase buck architecture. IC Role / Device Role / Timing Role: Low-loss freewheeling path during high-side switch dead time; handles pulsed 8 A currents with minimal overshoot. Use Value: 100 pF CJ and 35 ns trr suppress ringing and reduce gate-drive loading on adjacent MOSFETs, enhancing stability and signal integrity. | Use Scenario: DC link protection and freewheeling in 3 kW solar microinverter power stage. IC Role / Device Role / Timing Role: Anti-parallel diode across IGBTs in H-bridge, clamping inductive kickback during PWM commutation. Use Value: 125 A IFSM withstands grid-fault surges; 150°C TJMAX supports operation in sealed enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8L06W | 600 V VRRM, 8 A IF, 60 ns trr, TO-220AC, not AEC-Q101 qualified | Higher voltage rating but slower recovery; suited for general-purpose 600 V systems without automotive qualification needs | Select when VRRM > 200 V is required and AEC-Q101 is not mandated |
| VS-8EWH02FN-M3 | 200 V VRRM, 8 A IF, 30 ns trr, TO-220AC, AEC-Q101 qualified, VF = 0.92 V (typ) | Nearly identical voltage/current specs with slightly faster recovery and lower VF; same automotive qualification level | Preferred where marginal improvement in switching loss or conduction loss is critical; verify layout compatibility due to minor footprint variance |
Compared with STTH8L06W and VS-8EWH02FN-M3, the SFA804GH offers balanced performance: AEC-Q101 compliance and 35 ns trr like the latter, but with broader industry availability and proven thermal robustness in TO-220AC; unlike the former, it avoids over-spec'ing VRRM for 200 V-class designs.
Availability
SFA804GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and renewable energy inverters requiring stable component supply, AEC-Q101 qualification, and consistent TO-220AC mechanical form factor.
Supply support for SFA804GH 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 automotive, industrial, and consumer markets since 1979.
The SFA804GH belongs to TSC's AEC-Q101-qualified super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in thermally demanding environments such as automotive under-hood and industrial motor drives.
FAQ
What is the peak repetitive reverse voltage rating for SFA804GH?
The SFA804GH has a repetitive peak reverse voltage (VRRM) rating of 200 V, as confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version K2103). This value defines the maximum DC or peak AC reverse voltage the device can block continuously without breakdown, and is specific to the SFA804GH variant within the SFA801G–SFA808G series.
Is SFA804GH AEC-Q101 qualified, and what does the 'H' suffix indicate?
Yes, the 'H' suffix in SFA804GH explicitly denotes AEC-Q101 qualification per the Ordering Information section of the TSC datasheet. The SFA804GH has undergone full stress testing-including HTGB, HTRB, temperature cycling, and ESD-to meet automotive reliability requirements. This qualification applies specifically to the SFA804GH part, not the entire SFA801G–SFA808G family by default.
What is the typical forward voltage of SFA804GH at 8 A and 25°C?
The typical forward voltage (VF) of the SFA804GH is 0.975 V at IF = 8 A and TJ = 25°C, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the conduction loss baseline used for thermal and efficiency calculations in power supply designs using the SFA804GH.
Does SFA804GH have a cathode-connected tab, and how should it be mounted?
Yes, the SFA804GH uses a TO-220AC package with the cathode electrically connected to the metal tab, as shown in the Marking Diagram and Mechanical Data sections. When mounting, use an insulating washer and shoulder washer if the heatsink is grounded or referenced to a different potential; maximum mounting torque is 0.56 N·m to avoid package damage.
What is the reverse recovery time (trr) of SFA804GH, and under what test conditions is it measured?
The reverse recovery time (trr) of the SFA804GH is 35 ns, measured under the conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, as stated in the Electrical Specifications table. This parameter reflects the device's speed in transitioning from conduction to blocking state and is critical for minimizing switching losses in high-frequency power converters using the SFA804GH.
SFA804GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 975 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:
- 100pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFA804GH FAQ
1.How can I place an order for SFA804GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFA804GH 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 SFA804GH reliable?
The price and inventory of SFA804GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFA804GH is usually 5 days.
3.What payment methods are accepted for SFA804GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFA804GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFA804GH?
SFA804GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFA804GH 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 SFA804GH?
For technical support, including SFA804GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFA804GH requirements.
6.How does Aetrix verify that SFA804GH is sourced from the original manufacturer or authorized distributors?
All SFA804GH 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 SFA804GH meets industry standards.
7.What is the process for return or replacement of SFA804GH?
All SFA804GH units undergo pre-shipment inspection (PSI). If there is an issue with SFA804GH, 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 SFA804GH part is unused and in its original packaging.
Return procedure for SFA804GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SFA804GH 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…
