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Taiwan Semiconductor Corporation SFAF502GHC0G
- Part No.:
- SFAF502GHC0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF502GHC0G.pdf
- Description:
- DIODE GEN PURP 100V 5A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,221
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Product details
Overview
SFAF502GHC0G from Taiwan Semiconductor is a 100 V, 5 A super fast rectifier diode in ITO-220AC package, featuring 35 ns reverse recovery time, 0.975 V forward voltage at 5 A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the SFAF502GHC0G datasheet, SFAF502GHC0G pinout, SFAF502GHC0G application, or SFAF502GHC0G equivalent, key selection criteria include repetitive peak reverse voltage (100 V), surge current capability (125 A), thermal resistance (5 °C/W), and AEC-Q101 compliance for under-hood automotive use.
Technical Context
This single-die silicon rectifier uses glass passivated junction technology to achieve low forward voltage and high surge robustness. Its 35 ns trr and 70 pF junction capacitance support operation in DC–DC converters up to several hundred kHz.
The device operates across –55°C to +150°C junction temperature range with 5 °C/W junction-to-case thermal resistance. It meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck converter output stage |
| IF | 5 A - Continuous average forward current; determines heatsink sizing at rated case temperature |
| IFSM | 125 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current handling |
| trr | 35 ns - Reverse recovery time; enables efficient high-frequency switching with low switching loss |
| VF | 0.975 V @ 5 A, 25°C - Forward voltage drop; directly impacts conduction loss and thermal design |
| RθJC | 5 °C/W - Junction-to-case thermal resistance; used to calculate junction temperature rise above heatsink |
| IR | 10 µA @ 25°C - Max reverse leakage at rated VR; critical for low-power standby efficiency |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated tab, matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m max mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must be routed with low-inductance path |
| Cathode | Forward current exit point | Connected to output rail or ground return; carries full load current and requires adequate copper area |
| Tab (isolated) | Thermal interface only | Electrically isolated metal surface for heatsinking; no electrical connection required for circuit function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications per stress test requirements including temperature cycling and HTRB |
| Glass passivated junction | Enhances moisture resistance and long-term reliability in humid or contaminated environments |
| Low VF (0.975 V) | Reduces conduction losses by ~15% vs. standard fast rectifiers at 5 A, improving system efficiency |
| High IFSM (125 A) | Withstands transient overloads without failure-critical for motor drive freewheeling paths |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and automotive power systems |
Applications
| DC–DC Converter Output Rectification | Automotive Switch-Mode Power Supply |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V → 3.3 V/5 V flyback or forward converter for infotainment ECUs. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; defines output voltage ripple and efficiency. Use Value: 35 ns trr minimizes switching loss; 0.975 V VF reduces conduction loss at 5 A load, enabling smaller heatsinks. | Use Scenario: 12 V input supply conditioning in ADAS camera module with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: Output rectifier in synchronous-buck-derived architecture; handles continuous 5 A load with transient surges. Use Value: AEC-Q101 qualification ensures reliability at 125°C ambient; 5 °C/W RθJC supports passive cooling. |
| Industrial Motor Drive Freewheeling | Server PSU Hold-Up Circuit |
Use Scenario: Snubberless freewheeling path across BLDC motor phase windings in HVAC fan controllers. IC Role / Device Role / Timing Role: Clamps inductive kickback during PWM turn-off; absorbs energy without external snubber. Use Value: 125 A IFSM withstands motor stall currents; glass passivation prevents corrosion in factory environments. | Use Scenario: Backup rectification in 48 V server PSU hold-up capacitor charging path during AC loss. IC Role / Device Role / Timing Role: Unidirectional charge path isolating hold-up bank from main DC bus during brownout. Use Value: 10 µA IR at 25°C limits self-discharge; UL recognition satisfies datacenter safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06H | 600 V VRRM, 5 A IF, 50 ns trr, TO-220AC package, not AEC-Q101 qualified | Higher voltage margin but slower recovery; suitable for non-automotive 400 V bus applications | Choose when higher reverse voltage headroom is needed and AEC-Q101 is not required |
| VS-5EWH06-M3/45 | 60 V VRRM, 5 A IF, 25 ns trr, TO-220AC, AEC-Q101 qualified | Lower voltage rating but faster recovery; optimized for 48 V systems with tight timing budgets | Prefer for 48 V automotive subsystems where trr < 30 ns is mandatory |
Compared with STTH5L06H and VS-5EWH06-M3/45, the SFAF502GHC0G uniquely balances 100 V blocking, 35 ns speed, and AEC-Q101 compliance-making it optimal for 12 V/24 V automotive DC–DC stages requiring both reliability and efficiency.
Availability
SFAF502GHC0G is available at Aetrix Electronics and suitable for automotive power conversion, industrial motor control, and server hold-up circuits requiring stable component supply and long-term lifecycle assurance.
Supply support for SFAF502GHC0G 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 computing markets since 1979.
The SFAF502GHC0G belongs to TSC's AEC-Q101-qualified super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive engine control, body electronics, and ADAS subsystems.
FAQ
What is the maximum junction temperature rating for SFAF502GHC0G?
The SFAF502GHC0G has a maximum junction temperature (TJ MAX) of +150°C, verified per AEC-Q101 stress testing. This allows operation in under-hood automotive environments where case temperatures reach 125°C, provided thermal design maintains junction temperature ≤150°C. The 5 °C/W RθJC value enables accurate junction temperature calculation using measured case temperature.
Is SFAF502GHC0G pin-compatible with standard TO-220AC rectifiers?
Yes, SFAF502GHC0G uses the ITO-220AC package, which shares identical mechanical footprint and lead spacing with standard TO-220AC. However, its tab is electrically isolated-unlike conductive-tab TO-220AC devices-so PCB layout must maintain isolation between tab and heatsink mounting plane. No PCB changes are needed if existing design uses insulated mounting hardware.
What does the 'H' and 'C0G' suffix indicate in SFAF502GHC0G?
In SFAF502GHC0G, 'H' denotes AEC-Q101 qualification per the ordering code table, while 'C0G' specifies green (halogen-free) molding compound compliant with IEC 61249-2-21. The 'G' alone indicates RoHS compliance; 'C0G' adds halogen-free certification. These suffixes confirm suitability for automotive and environmentally regulated applications.
How does the 35 ns reverse recovery time of SFAF502GHC0G impact EMI in switching converters?
The 35 ns trr of SFAF502GHC0G reduces high-frequency ringing during diode turn-off, lowering radiated and conducted EMI compared to standard recovery diodes. In buck converters switching at 300 kHz, this enables smaller input filter components and simplifies EMC compliance-especially critical in automotive modules subject to CISPR 25 Class 5 limits.
Can SFAF502GHC0G replace SFAF502G in an existing design?
Yes, SFAF502GHC0G is a direct replacement for SFAF502G with identical electrical specifications and package. The 'H' and 'C0G' suffixes add AEC-Q101 qualification and halogen-free construction-no performance trade-offs. Existing designs benefit from enhanced reliability and regulatory compliance without layout or firmware changes.
SFAF502GHC0G 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):
- 100 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 975 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 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
SFAF502GHC0G FAQ
1.How can I place an order for SFAF502GHC0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF502GHC0G 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 SFAF502GHC0G reliable?
The price and inventory of SFAF502GHC0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF502GHC0G is usually 5 days.
3.What payment methods are accepted for SFAF502GHC0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF502GHC0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF502GHC0G?
SFAF502GHC0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF502GHC0G 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 SFAF502GHC0G?
For technical support, including SFAF502GHC0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF502GHC0G requirements.
6.How does Aetrix verify that SFAF502GHC0G is sourced from the original manufacturer or authorized distributors?
All SFAF502GHC0G 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 SFAF502GHC0G meets industry standards.
7.What is the process for return or replacement of SFAF502GHC0G?
All SFAF502GHC0G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF502GHC0G, 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 SFAF502GHC0G part is unused and in its original packaging.
Return procedure for SFAF502GHC0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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