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Taiwan Semiconductor Corporation SF36G A0G
- Part No.:
- SF36G A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF36G A0G.pdf
- Description:
- DIODE GEN PURP 400V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,482
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Product details
Overview
SF36G A0G from Taiwan Semiconductor is a 400V, 3A super fast recovery rectifier diode in DO-201AD package, featuring 35ns reverse recovery time, 1.30V forward voltage at 3A/25°C, and 125A surge capability - deployed in switching-mode DC/DC converters requiring low conduction loss and fast commutation.
For engineers reviewing the SF36G A0G datasheet, SF36G A0G pinout, SF36G A0G application, or SF36G A0G equivalent, key selection criteria include VRRM = 400V, IF = 3A, trr = 35ns, RθJL = 10°C/W, and DO-201AD mechanical compatibility with high-reliability power conversion designs.
Technical Context
This super fast rectifier uses a single-die silicon PN junction optimized for reduced minority carrier lifetime, enabling trr ≤ 35ns under IF = 0.5A / IR = 1.0A / Irr = 0.25A test conditions. Its 400V VRRM rating supports 280V RMS input stages in offline SMPS topologies.
Thermal performance is defined by RθJL = 10°C/W and RθJC = 9°C/W, allowing sustained 3A average forward current up to TJ = 150°C when mounted on copper-clad PCBs with adequate lead thermal relief.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage; sets upper limit for bridge or freewheeling position in 280VRMS AC-input SMPS |
| IF | 3 A - Continuous average forward current at TL = 75°C; defines steady-state power handling in DC/DC output stage |
| trr | 35 ns - Reverse recovery time; enables operation at ≥100 kHz switching frequencies with minimal switching loss |
| VF | 1.30 V @ 3A, 25°C - Forward voltage drop; determines conduction loss (3.9W max at full load) and thermal design margin |
| IFSM | 125 A - Non-repetitive surge current (8.3ms half-sine); withstands inrush and fault transients without failure |
| RθJL | 10 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to PCB copper pour or heatsink via leads |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; two-terminal device (Anode and Cathode), no internal connections beyond the PN junction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode | Forward current exit point; marked with band | Connected to higher-potential rail (e.g., output capacitor positive terminal) |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery | trr = 35 ns - Reduces turn-off loss and EMI in high-frequency converters (≥100 kHz) |
| Low forward voltage | VF = 1.30 V @ 3A - Minimizes conduction loss vs. standard rectifiers (e.g., 1N5408: ~1.2V but trr > 2000 ns) |
| High surge robustness | IFSM = 125 A - Survives repeated cold-start surges in industrial power supplies |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS - Meets environmental compliance for automotive and industrial end equipment |
Applications
| AC-DC Adapter Output Rectification | DC/DC Buck Converter Freewheel Diode |
|---|---|
Use Scenario: 12V/3A isolated flyback adapter powering IoT gateways with 65 kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier conducting during MOSFET off-time; replaces slower 1N5822 in cost-sensitive designs. Use Value: 35 ns trr reduces switching loss by ~40% vs. standard Schottky alternatives rated ≤ 40V, enabling higher efficiency at 65 kHz. | Use Scenario: 48V-to-12V synchronous buck converter in telecom shelf power where body diode conduction must be minimized. IC Role / Device Role / Timing Role: Freewheel diode clamping inductor current during high-side FET off-time; operates only during dead-time intervals. Use Value: 1.30V VF limits peak conduction loss to 3.9W, while 400V rating provides margin against voltage spikes during transient load steps. |
| Industrial Motor Drive Snubber Network | Uninterruptible Power Supply (UPS) Inverter Stage |
Use Scenario: RC snubber network across IGBT collector-emitter in 3-phase 400V motor drive inverters. IC Role / Device Role / Timing Role: Fast recovery diode in snubber loop absorbing turn-off energy; conducts brief high-di/dt pulses. Use Value: 125A IFSM withstands repetitive 100A snubber surges; 35ns trr ensures clean turn-off without tail current oscillation. | Use Scenario: Half-bridge inverter output stage in 1kVA online UPS converting 380V DC bus to 230V AC output. IC Role / Device Role / Timing Role: Anti-parallel diode across IGBTs providing reactive current path during PWM commutation. Use Value: 400V VRRM exceeds 380V DC bus + 20% margin; DO-201AD package allows manual replacement in field-serviceable modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L04 | VRRM = 400V, trr = 30ns, VF = 1.35V @ 3A - Slightly faster but higher VF | Same DO-201AD footprint; requires revalidation of thermal rise due to +0.05V VF increase | Preferred where <30ns trr is critical and 0.05V higher loss is acceptable |
| ES3D | VRRM = 200V, trr = 35ns, VF = 0.95V @ 3A - Lower voltage rating, lower VF | Not suitable for 400V systems; limited to ≤140V RMS input stages | Select only for 100–200V DC bus applications where lower conduction loss outweighs voltage margin loss |
Compared with STTH3L04 and ES3D, SF36G A0G delivers optimal balance of 400V rating, 35ns recovery, and 1.30V forward drop in DO-201AD - making it the default choice for 280VRMS AC-input SMPS and 380–400V DC bus freewheeling where voltage margin and thermal performance are prioritized.
Availability
SF36G A0G is available at Aetrix Electronics and suitable for AC-DC adapters, DC/DC buck converters, industrial motor drives, and UPS inverters requiring stable component supply with consistent DO-201AD mechanical form factor and AEC-Q101-compatible manufacturing traceability.
Supply support for SF36G A0G 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, specializing in power rectifiers, TVS devices, and protection ICs since 1979.
The SF3xG series was engineered specifically for high-efficiency, high-reliability switching power supplies - emphasizing fast recovery, low VF, and robust surge capability in standard axial packages for industrial and automotive-grade applications.
FAQ
What is the maximum junction temperature rating for SF36G A0G?
The SF36G A0G has a maximum junction temperature (TJ) of +150°C, validated per JEDEC JESD22-A108. This rating applies under continuous IF = 3A operation when lead temperature is maintained at ≤75°C. Derating curves in the official datasheet confirm usable current down to 0A at TJ = 150°C, ensuring safe operation in enclosed industrial enclosures.
Is SF36G A0G AEC-Q101 qualified?
No, SF36G A0G is not AEC-Q101 qualified. The "A0G" suffix denotes 500-piece ammo box packaging in DO-201AD; AEC-Q101 qualification is indicated by the "H" suffix (e.g., SF36GH). SF36G A0G shares identical die and construction with SF36GH but lacks the extended reliability testing required for automotive qualification.
What is the reverse leakage current specification for SF36G A0G at 125°C?
At TJ = 125°C and rated VR = 400V, the SF36G A0G exhibits a maximum reverse leakage current (IR) of 100 µA, measured per pulse test (PW = 30 ms). This value is confirmed in the Electrical Specifications table of the H2105 datasheet and remains stable across production lots meeting TSC's screening standards.
Can SF36G A0G replace SF36GH in automotive applications?
No, SF36G A0G cannot replace SF36GH in automotive applications requiring AEC-Q101 compliance. While both share identical electrical parameters and DO-201AD packaging, SF36G A0G lacks the stress testing (HTSL, TC, UHAST, etc.) and lot-level documentation mandated by AEC-Q101. Automotive designs must use SF36GH or equivalent qualified parts to meet functional safety requirements.
What is the junction-to-ambient thermal resistance (RθJA) for SF36G A0G in free air?
The SF36G A0G has a junction-to-ambient thermal resistance (RθJA) of 35°C/W under standard JEDEC test conditions (free-air, no heatsink, 1-inch² copper pad). This value assumes no PCB copper extension; adding 1-inch² of 2-oz copper on both sides reduces effective RθJA to ~22°C/W, directly improving thermal headroom for 3A continuous operation.
SF36G A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF36G A0G FAQ
1.How can I place an order for SF36G A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF36G A0G 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 SF36G A0G reliable?
The price and inventory of SF36G A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF36G A0G is usually 5 days.
3.What payment methods are accepted for SF36G A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF36G A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF36G A0G?
SF36G A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF36G A0G 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 SF36G A0G?
For technical support, including SF36G A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF36G A0G requirements.
6.How does Aetrix verify that SF36G A0G is sourced from the original manufacturer or authorized distributors?
All SF36G A0G 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 SF36G A0G meets industry standards.
7.What is the process for return or replacement of SF36G A0G?
All SF36G A0G units undergo pre-shipment inspection (PSI). If there is an issue with SF36G A0G, 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 SF36G A0G part is unused and in its original packaging.
Return procedure for SF36G A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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