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Taiwan Semiconductor Corporation SFF502G C0G
- Part No.:
- SFF502G C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SFF502G C0G.pdf
- Description:
- DIODE GEN PURP 100V 5A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,727
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Product details
Overview
SFF502G from Taiwan Semiconductor is a 5A, 100V super fast rectifier diode in ITO-220AB package, featuring 35ns reverse recovery time, 0.98V forward voltage at 2.5A/25°C, and 70A surge capability - used in DC-DC converters and switching inverters for high-efficiency power conversion.
For engineers reviewing the SFF502G datasheet, SFF502G pinout, SFF502G application, or SFF502G equivalent, key selection criteria include VRRM = 100 V, IF = 5 A, trr = 35 ns, RθJC = 5.5 °C/W, and ITO-220AB thermal/mechanical compatibility with heatsink mounting.
Technical Context
The SFF502G integrates dual die configuration in a single ITO-220AB package, enabling high-current freewheeling paths with low conduction loss. Its super fast recovery (trr ≤ 35 ns) minimizes switching losses in high-frequency SMPS topologies operating up to several hundred kHz.
Thermally optimized with RθJC = 5.5 °C/W and rated for TJ up to +150°C, the device supports continuous operation under elevated ambient conditions when mounted with proper torque (≤0.56 N·m) on heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse voltage before breakdown; defines safe blocking range in 100V bus applications |
| IF | 5 A - average forward current rating; supports continuous conduction mode in 5A-output DC-DC stages |
| trr | 35 ns - reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient operation in ≥200 kHz switching converters |
| VF | 0.98 V @ 2.5 A, 25°C - low forward drop reduces conduction loss and thermal stress in high-duty-cycle designs |
| RθJC | 5.5 °C/W - junction-to-case thermal resistance; allows ~9 W power dissipation with 50°C case-to-ambient rise |
| IFSM | 70 A - non-repetitive surge current (8.3 ms half-sine); withstands startup inrush and transient overloads |
Pinout & Package
Package: ITO-220AB - insulated TO-220 variant with electrically isolated tab, UL 94V-0 molding compound, matte tin-plated leads, and 1.82 g mass. Mounting torque ≤ 0.56 N·m; polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input/high-side node in freewheeling or output rectification path |
| Cathode (Lead 2) | Forward current exit point | Connected to ground/common return or low-side switch node |
| Tab (Case) | Electrically isolated thermal path | Provides mechanical mounting and heat transfer without electrical connection; requires insulating washer if mounted to grounded heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr) | 35 ns enables reduced switching loss and EMI in high-frequency SMPS (>200 kHz) |
| Low forward voltage (VF) | 0.98 V @ 2.5 A cuts conduction loss by ~15% vs. standard fast rectifiers at same current |
| Dual-die configuration | Single-package integration supports redundant or parallel paths without layout duplication |
| AEC-Q101 qualified option (SFF502GH) | Validated for automotive-grade reliability including temperature cycling and whisker resistance |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in industrial and consumer power supplies |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12V–48V output buck-derived converters. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time. Use Value: 0.98 V VF and 35 ns trr reduce total power loss by >0.8 W per diode vs. standard fast recovery alternatives at 5A/200kHz. | Use Scenario: Output stage rectification in 1–3 kW solar microinverters with transformerless topology. IC Role / Device Role / Timing Role: Unidirectional current steering during AC half-cycle commutation. Use Value: 70 A IFSM and 150°C TJMAX ensure robustness against grid transients and thermal cycling in outdoor environments. |
| Freewheeling Circuits | Industrial Motor Drives |
Use Scenario: Inductive load flyback protection in 24V/48V DC motor control H-bridges. IC Role / Device Role / Timing Role: Clamp diode absorbing back-EMF energy during PWM turn-off transitions. Use Value: 5.5 °C/W RθJC and isolated tab allow direct heatsink mounting without isolation hardware, simplifying thermal design. | Use Scenario: Snubber and clamp function in IGBT-based variable frequency drives for HVAC compressors. IC Role / Device Role / Timing Role: Fast-recovery path limiting voltage overshoot during IGBT turn-off. Use Value: 100 V VRRM and 35 ns trr match typical 1200V IGBT bus clamping requirements while minimizing stored charge-induced oscillation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH5L06 | VRRM = 600 V, trr = 35 ns, VF = 1.7 V @ 5 A - higher blocking but higher conduction loss | Used where 600 V isolation is required; less optimal for 100 V bus due to excess VRRM overhead | Select SFF502G when 100 V rating and lowest VF are prioritized in compact 5A designs |
| ON Semi MUR5100 | VRRM = 100 V, trr = 50 ns, VF = 1.15 V @ 5 A - slower recovery and higher VF than SFF502G | Acceptable in lower-frequency (<100 kHz) converters where EMI margin is relaxed | Choose SFF502G for designs demanding <35 ns trr and sub-1.0 V VF at 2.5 A |
Compared with STTH5L06 and MUR5100, the SFF502G delivers the lowest forward voltage (0.98 V) and matched 100 V rating among super fast rectifiers in ITO-220AB, making it optimal for thermally constrained, high-frequency 5A power stages where conduction and switching loss must both be minimized.
Availability
SFF502G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling circuits requiring stable component supply, automotive-grade traceability (via SFF502GH variant), and long-term industrial lifecycle support.
Supply support for SFF502G 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 global industrial, computing, and automotive markets since 1979.
The SFF502G belongs to TSC's SFF super fast rectifier family, engineered specifically for high-efficiency, high-frequency power conversion in space-constrained applications where low VF, fast trr, and robust thermal performance are critical.
FAQ
What is the maximum junction temperature rating for the SFF502G?
The SFF502G has a maximum junction temperature (TJ) rating of +150°C, verified across its full operating range. This allows reliable operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive modules when properly heatsinked. Derating curves in the official datasheet confirm usable current capacity down to 25°C case temperature at full 5 A rating.
Is the SFF502G pin-compatible with other ITO-220AB rectifiers like the MUR5100?
Yes, the SFF502G uses the standard ITO-220AB footprint and lead configuration - Anode (Lead 1), Cathode (Lead 2), and electrically isolated tab - matching MUR5100, STTH5L06, and similar devices. Mechanical mounting, PCB pad layout, and heatsink interface are identical, enabling direct physical replacement without board rework.
Does the SFF502G meet automotive reliability standards?
The base SFF502G is not AEC-Q101 qualified, but the SFF502GH variant is fully AEC-Q101 certified per Version I2105 documentation. It passes temperature cycling, humidity testing, and whisker resistance per JESD201 Class 2 - making SFF502GH suitable for automotive infotainment, ADAS power rails, and body control modules.
What is the reverse recovery time test condition for the SFF502G?
The specified trr = 35 ns for the SFF502G is measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, reverse recovery current Irr = 0.25 A, and TA = 25°C. This reflects real-world behavior in hard-switched converters and ensures consistent timing predictability during turn-off transitions.
How does the SFF502G's forward voltage compare to similar 100V rectifiers?
At 2.5 A and 25°C, the SFF502G delivers VF = 0.98 V - lower than MUR5100 (1.15 V) and significantly lower than STTH5L06 (1.7 V). This 0.17 V advantage reduces conduction loss by ~180 mW per diode at 2.5 A, directly improving efficiency and easing thermal management in dense power layouts.
SFF502G C0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 980 mV @ 2.5 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFF502G C0G FAQ
1.How can I place an order for SFF502G C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFF502G C0G 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 SFF502G C0G reliable?
The price and inventory of SFF502G C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF502G C0G is usually 5 days.
3.What payment methods are accepted for SFF502G C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF502G C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFF502G C0G?
SFF502G C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFF502G C0G 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 SFF502G C0G?
For technical support, including SFF502G C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF502G C0G requirements.
6.How does Aetrix verify that SFF502G C0G is sourced from the original manufacturer or authorized distributors?
All SFF502G C0G 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 SFF502G C0G meets industry standards.
7.What is the process for return or replacement of SFF502G C0G?
All SFF502G C0G units undergo pre-shipment inspection (PSI). If there is an issue with SFF502G C0G, 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 SFF502G C0G part is unused and in its original packaging.
Return procedure for SFF502G C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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