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Taiwan Semiconductor Corporation SFAF506GH
- Part No.:
- SFAF506GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF506GH.pdf
- Description:
- 35NS, 5A, 400V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
SFAF506GH from Taiwan Semiconductor is a 5A, 400V repetitive peak reverse voltage (VRRM) AEC-Q101-qualified super fast rectifier in ITO-220AC package, featuring 1.300 V forward voltage at 5 A and 35 ns reverse recovery time, used in automotive-grade DC-DC converters and switching inverters.
For engineers reviewing the SFAF506GH datasheet, SFAF506GH pinout, SFAF506GH application, or SFAF506GH equivalent, key selection criteria include its AEC-Q101 qualification, 400 V VRRM, 125 A surge rating, 5 °C/W junction-to-case thermal resistance, and ITO-220AC mounting compatibility with 0.56 N·m torque limit.
Technical Context
This super fast rectifier employs a glass passivated single-die silicon junction optimized for high-efficiency switching applications. Its 35 ns reverse recovery time and low 1.300 V forward voltage at 5 A enable reduced conduction and switching losses in high-frequency power conversion stages.
The device operates across –55 °C to +150 °C junction temperature range and delivers 125 A non-repetitive surge current capability under 8.3 ms half-sine conditions. Thermal performance is characterized by 5 °C/W RθJC, supporting reliable heat dissipation when mounted to heatsinks via the ITO-220AC case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines usable input voltage headroom in flyback or boost topologies |
| IF | 5 A - Continuous average forward current; sets steady-state power handling capacity at rated case temperature |
| IFSM | 125 A - Peak non-repetitive surge current; supports inrush and fault transient tolerance without failure |
| VF | 1.300 V @ 5 A, 25 °C - Forward conduction loss contributor; directly impacts efficiency and thermal design |
| trr | 35 ns - Reverse recovery time; critical for minimizing switching losses and EMI in >100 kHz converters |
| RθJC | 5 °C/W - Junction-to-case thermal resistance; enables thermal modeling for heatsink sizing and derating |
| Junction Temp | –55 °C to +150 °C - Operating range compatible with under-hood automotive environments |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated metal tab, UL 94V-0 molding compound, matte tin-plated leads, and polarity marking per device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; requires thermal interface to heatsink via tab |
| Cathode | Forward current exit point | Connected to higher-potential rail (e.g., output capacitor positive); electrically tied to metal tab |
| Metal Tab | Cathode terminal & thermal path | Electrically active cathode connection; must be insulated from chassis unless circuit design permits common-cathode grounding |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics requiring stress-tested reliability across temperature, humidity, and vibration profiles |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives |
| Low VF / high efficiency | Reduces conduction loss by ~15% vs. standard fast rectifiers at 5 A, lowering thermal load on heatsink |
| High IFSM capability | Withstands 125 A surge without bond wire lift-off, improving robustness in motor drive or PFC stage faults |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in industrial and automotive power supplies |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: 12 V to 48 V bidirectional converter in 48 V mild hybrid vehicles. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asymmetrical half-bridge topology. Use Value: AEC-Q101 qualification and 150 °C max junction temperature ensure operation in engine bay environments. | Use Scenario: DC link rectification in servo drive power stage feeding IGBT modules. IC Role / Device Role / Timing Role: Freewheeling diode parallel to IGBTs during turn-off commutation. Use Value: 35 ns trr minimizes tail current overlap loss, reducing heat generation in 20 kHz PWM operation. |
| Server PSU Secondary Side | Renewable Energy Charge Controllers |
Use Scenario: OR-ing diode array in redundant 12 V server power supply outputs. IC Role / Device Role / Timing Role: Unidirectional current path enabling hot-swap and fault isolation. Use Value: 1.300 V VF balances conduction loss and footprint vs. Schottky alternatives up to 400 V. | Use Scenario: MPPT charge controller rectifying AC generator output in off-grid wind systems. IC Role / Device Role / Timing Role: Input bridge rectifier converting variable-frequency, variable-voltage AC to DC bus. Use Value: 125 A IFSM accommodates wind gust-induced generator surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06S | 600 V VRRM, 1.75 V VF @ 5 A, 50 ns trr, TO-220AC package | Higher voltage rating but slower recovery and higher conduction loss | Preferred where 600 V blocking is required and 35 ns trr is not critical |
| VS-5EWH04-M3/45 | 400 V VRRM, 1.25 V VF @ 5 A, 30 ns trr, AEC-Q101 qualified, TO-220AC | Near-identical voltage/current specs with marginally faster recovery and lower VF | Drop-in alternative if tighter trr and VF tolerance are prioritized over cost |
Compared with STTH5L06S and VS-5EWH04-M3/45, the SFAF506GH offers balanced 400 V/5 A performance with AEC-Q101 validation and industry-standard ITO-220AC mechanical fit, making it optimal for cost-sensitive automotive and industrial converters where 35 ns recovery meets design margins.
Availability
SFAF506GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and renewable energy charge controllers requiring stable component supply with AEC-Q101 compliance and thermal reliability.
Supply support for SFAF506GH 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 computing markets since 1979.
The SFAF506GH belongs to TSC's AEC-Q101-qualified super fast rectifier family, engineered for high-efficiency, high-reliability power conversion in harsh-environment applications including engine control units and onboard chargers.
FAQ
What is the peak repetitive reverse voltage rating of the SFAF506GH?
The SFAF506GH has a peak repetitive reverse voltage (VRRM) rating of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2105). This value defines the maximum DC or sinusoidal AC reverse voltage the device can block continuously without breakdown, and is specific to the "506" variant within the SFAF501G–SFAF508G series.
Is the SFAF506GH qualified for automotive applications?
Yes, the SFAF506GH is AEC-Q101 qualified, as explicitly stated in the FEATURES section and ordering code note ("H" suffix denotes AEC-Q101 qualification). This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and other automotive-grade reliability requirements, making the SFAF506GH suitable for under-hood and powertrain-related designs.
What is the forward voltage drop of the SFAF506GH at rated current?
The SFAF506GH exhibits a maximum forward voltage (VF) of 1.300 V at 5 A forward current and 25 °C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the conduction loss boundary used for thermal and efficiency calculations in power supply design.
Does the SFAF506GH have a defined reverse recovery time?
Yes, the SFAF506GH has a maximum reverse recovery time (trr) of 35 ns, specified under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is critical for high-frequency switching applications and is validated across the SFAF505G–SFAF506G group in the datasheet's Electrical Specifications section.
What package type does the SFAF506GH use, and is the metal tab electrically active?
The SFAF506GH uses the ITO-220AC package, where the metal tab is the cathode terminal and therefore electrically active. The "I" prefix indicates electrical isolation between the tab and lead frame, but the tab itself remains connected to the cathode-confirmed by the Marking Diagram and Mechanical Data sections, which specify polarity marking and cathode-tab continuity.
SFAF506GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 70pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAF506GH FAQ
1.How can I place an order for SFAF506GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF506GH 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 SFAF506GH reliable?
The price and inventory of SFAF506GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF506GH is usually 5 days.
3.What payment methods are accepted for SFAF506GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF506GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF506GH?
SFAF506GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF506GH 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 SFAF506GH?
For technical support, including SFAF506GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF506GH requirements.
6.How does Aetrix verify that SFAF506GH is sourced from the original manufacturer or authorized distributors?
All SFAF506GH 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 SFAF506GH meets industry standards.
7.What is the process for return or replacement of SFAF506GH?
All SFAF506GH units undergo pre-shipment inspection (PSI). If there is an issue with SFAF506GH, 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 SFAF506GH part is unused and in its original packaging.
Return procedure for SFAF506GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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