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Taiwan Semiconductor Corporation SF36GH
- Part No.:
- SF36GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF36GH.pdf
- Description:
- DIODE GEN PURP 400V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
SF36GH from Taiwan Semiconductor is a 400V, 3A super fast rectifier diode in DO-201AD package, featuring 1.30V forward voltage at 3A and 35ns reverse recovery time. It serves as a freewheeling or output rectifier in high-frequency switching power supplies, delivering low conduction loss and high surge robustness in automotive-grade DC-DC converters.
For engineers reviewing the SF36GH datasheet, SF36GH pinout, SF36GH application, or SF36GH equivalent, key selection criteria include its AEC-Q101 qualification, 125A IFSM rating, 150°C junction temperature limit, and DO-201AD mechanical compatibility with automated SMT placement and reflow profiles.
Technical Context
This super fast rectifier uses a single-die silicon PN junction optimized for high-speed switching in SMPS topologies. Its 35ns trr and low CJ (60pF) minimize switching losses during turn-off, while the 10°C/W RθJL enables effective thermal coupling to PCB copper.
The device operates across –55°C to +150°C junction range and supports repetitive reverse voltages up to 400V (VRRM), with VR(RMS) rated at 280V. Its pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse blocking voltage; defines safe operating margin in 280V RMS input designs |
| IF | 3 A - Continuous average forward current at TA = 75°C; determines heatsink-free operation in compact converters |
| IFSM | 125 A - Peak surge current capability for 8.3ms half-sine; withstands startup inrush and fault transients |
| VF @ 3A | 1.30 V - Forward voltage drop at rated DC current; directly impacts conduction loss (3.9W at 3A) |
| trr | 35 ns - Reverse recovery time under IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables >100kHz switching without excessive ringing |
| RθJL | 10 °C/W - Junction-to-lead thermal resistance; allows direct thermal path to PCB pad or heatsink tab |
| TJ max | 150 °C - Maximum allowable junction temperature; sets derating boundary for high-ambient industrial use |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; body length 7.62 mm, lead diameter 0.6 mm, overall length 12.7 mm. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires low-inductance layout |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or ground return; carries full load current and high dv/dt noise |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements (HTOL, TC, HAST, etc.) |
| Low VF & fast trr | 1.30V @ 3A + 35ns recovery enables >92% efficiency in 100–300kHz isolated DC-DC stages |
| High IFSM | 125A surge rating supports 10× overcurrent tolerance during cold-start or short-circuit events |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| DO-201AD mechanical robustness | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance ensure long-term reliability in vibration-prone environments |
Applications
| Automotive DC-DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V-to-5V/3.3V step-down converter in engine control unit (ECU) with 150°C under-hood ambient. IC Role / Device Role / Timing Role: Output rectifier handling continuous 3A load and transient surges during cranking. Use Value: AEC-Q101 qualification and 150°C TJ max enable operation without derating in sealed ECU enclosures. | Use Scenario: 48V-to-12V telecom power supply with 200kHz switching frequency and strict EMI limits. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified flyback stage. Use Value: 35ns trr reduces switching node ringing and EMI generation compared to standard fast recovery diodes. |
| LED Driver Secondary Side | UPS Inverter Stage |
Use Scenario: Constant-current LED driver for commercial lighting with 300VAC input and 350mA output. IC Role / Device Role / Timing Role: Secondary-side output rectifier in quasi-resonant flyback topology. Use Value: Low VF (1.30V) minimizes conduction loss at partial load, improving system efficiency at dimmed brightness levels. | Use Scenario: 24V battery-backed UPS inverting 24V DC to 120V AC with 50Hz fundamental and PWM harmonics. IC Role / Device Role / Timing Role: Freewheeling diode across inverter bridge leg during dead-time intervals. Use Value: 125A IFSM withstands repeated motor-start surges and short-circuit currents without bond-wire failure. |
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 | 400V VRRM, 3A IF, 1.35V VF @ 3A, 30ns trr, TO-220AC package | Higher thermal mass but larger footprint; requires mounting hardware | Preferred where board space permits and higher thermal inertia improves surge resilience |
| ES3D-E3/54 | 200V VRRM, 3A IF, 0.95V VF @ 3A, 35ns trr, DO-204AL (SMA) package | Lower voltage rating; unsuitable for 400V bus applications | Only viable in ≤200V systems where lower VF reduces conduction loss |
Compared with STTH3L04 and ES3D-E3/54, the SF36GH uniquely combines AEC-Q101 qualification, DO-201AD form factor, and 400V/3A/35ns performance-making it optimal for space-constrained, automotive-qualified, medium-voltage switching power supplies.
Availability
SF36GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS outputs, and LED driver secondary-side rectification requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for SF36GH 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 automotive, industrial, and consumer markets since 1979.
The SF36GH belongs to TSC's SF3xG super fast rectifier family, engineered specifically for high-efficiency, high-reliability switching power conversion in harsh-environment applications demanding AEC-Q101 validation and tight parametric consistency.
FAQ
What is the peak repetitive reverse voltage rating of the SF36GH?
The SF36GH has a peak repetitive reverse voltage (VRRM) rating of 400 V. This value is specified per the manufacturer's datasheet and defines the maximum reverse voltage the device can block repeatedly without breakdown. It is critical for ensuring safe operation in circuits with 280V RMS input or 400V DC bus rails. The SF36GH must not be used in applications exceeding this rating.
Is the SF36GH qualified for automotive applications?
Yes, the SF36GH is AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code. This qualification confirms that the SF36GH has passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-making it suitable for automotive powertrain and body electronics where reliability under thermal and mechanical stress is mandatory.
What is the forward voltage drop of the SF36GH at 3A and 25°C?
The SF36GH exhibits a maximum forward voltage (VF) of 1.30 V at 3 A forward current and 25°C junction temperature. This value is measured under pulsed conditions (PW = 0.3 ms) and directly determines conduction loss-resulting in 3.9 W of power dissipation at full rated current. Thermal design must account for this loss using the device's RθJL of 10°C/W.
What package type does the SF36GH use, and what are its key mechanical features?
The SF36GH uses the DO-201AD axial-leaded package. Key mechanical features include UL 94V-0 compliant molding compound, pure tin-plated leads meeting J-STD-002 solderability, JESD201 Class 2 whisker resistance, and cathode polarity marked by a visible band. Its standardized dimensions allow compatibility with automated tape-and-reel feeding and wave/solder-reflow processes.
How does the SF36GH compare to the SF35G in terms of voltage rating and forward voltage?
The SF36GH and SF35G share identical forward voltage (1.30 V @ 3A) and reverse recovery time (35 ns), but differ in peak reverse voltage: SF35G is rated at 300 V VRRM, while SF36GH is rated at 400 V VRRM. This makes the SF36GH suitable for higher bus voltage applications such as 400V DC intermediate rails, whereas SF35G is limited to ≤300V systems. Both use the same DO-201AD package and AEC-Q101 qualification.
SF36GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF36GH FAQ
1.How can I place an order for SF36GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SF36GH 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 SF36GH reliable?
The price and inventory of SF36GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF36GH is usually 5 days.
3.What payment methods are accepted for SF36GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF36GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF36GH?
SF36GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF36GH 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 SF36GH?
For technical support, including SF36GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF36GH requirements.
6.How does Aetrix verify that SF36GH is sourced from the original manufacturer or authorized distributors?
All SF36GH 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 SF36GH meets industry standards.
7.What is the process for return or replacement of SF36GH?
All SF36GH units undergo pre-shipment inspection (PSI). If there is an issue with SF36GH, 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 SF36GH part is unused and in its original packaging.
Return procedure for SF36GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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