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Taiwan Semiconductor Corporation SF11GHR0G
- Part No.:
- SF11GHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SF11GHR0G.pdf
- Description:
- DIODE GEN PURP 50V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
SF11GHR0G from Taiwan Semiconductor is a 1 A, 50 V super fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A and 25 °C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in low-voltage DC-DC converters.
For engineers reviewing the SF11GHR0G datasheet, SF11GHR0G pinout, SF11GHR0G application, or SF11GHR0G equivalent, key selection criteria include its 50 V repetitive peak reverse voltage, 30 A surge capability, junction-to-lead thermal resistance of 20 °C/W, and compliance with RoHS and halogen-free standards per IEC 61249-2-21.
Technical Context
This super fast rectifier uses a single-die silicon PN junction optimized for minimal reverse recovery charge and low conduction loss. Its 35 ns trr and 0.95 V VF at 1 A enable high-frequency switching efficiency in compact power supplies.
The device operates across –55 °C to +150 °C junction temperature range, with 20 °C/W junction-to-lead thermal resistance enabling direct PCB trace heat sinking. Cathode band polarity marking and pure tin-plated leads ensure reliable soldering per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Average Forward Current) | 1 A - supports continuous output rectification in sub-10 W SMPS designs |
| VRRM (Repetitive Peak Reverse Voltage) | 50 V - rated for 36 V nominal input systems with 30 % safety margin |
| trr (Reverse Recovery Time) | 35 ns - enables operation up to ~3 MHz switching frequency without excessive switching loss |
| VF (Forward Voltage @ 1 A, 25 °C) | 0.95 V - limits conduction loss to ≤0.95 W at full load, reducing thermal stress |
| IFSM (Surge Forward Current) | 30 A - withstands inrush and transient overloads in automotive cold-crank scenarios |
| RθJL (Junction-to-Lead Thermal Resistance) | 20 °C/W - allows direct thermal coupling to copper pour for passive cooling in space-constrained layouts |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, cathode indicated by band. Weight: 0.350 g. Molding compound meets UL 94V-0; terminals are pure tin plated, whisker-tested per JESD 201 Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node or ground return in flyback secondary) |
| Cathode | Current exit point during forward conduction; reverse-blocking terminal | Marked with band; ties to positive output rail-critical for correct polarity in output rectification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Super fast recovery (35 ns) | Reduces switching loss and EMI generation in high-frequency DC-DC topologies |
| Low VF (0.95 V @ 1 A) | Minimizes I²R heating and improves efficiency in thermally constrained applications |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and global environmental directives for end-of-life processing |
Applications
| Automotive Body Control Module (BCM) | USB-C PD Adapter Secondary Side |
|---|---|
Use Scenario: Rectifying 12 V battery-derived auxiliary rails in BCMs powering door locks, lighting, and sensors. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback converter. Use Value: AEC-Q101 qualification ensures long-term reliability under thermal cycling and vibration; 35 ns trr maintains efficiency at 500 kHz–1 MHz switching. | Use Scenario: Secondary-side rectification in compact 20–30 W USB-C PD adapters with tight thermal budgets. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp flyback or SR-controlled topology. Use Value: 0.95 V VF reduces conduction loss vs. standard FRDs; DO-41 package fits legacy through-hole footprints without redesign. |
| Industrial Sensor Transmitter Power Supply | Smart Home Gateway PoE Interface |
Use Scenario: Isolated 3.3 V/5 V bias supply for 4–20 mA loop-powered transmitters in hazardous environments. IC Role / Device Role / Timing Role: Primary output rectifier in ultra-low-noise, low-power flyback converter. Use Value: Low IR (≤5 µA @ 25 °C) prevents leakage-induced offset drift; 150 °C TJ max supports operation in sealed enclosures. | Use Scenario: Auxiliary bias supply rectification in IEEE 802.3af/at PoE-powered gateways with limited board area. IC Role / Device Role / Timing Role: Freewheeling diode in PoE interface DC-DC stage. Use Value: 30 A IFSM handles PoE inrush surges; DO-41 leads allow manual rework and automated insertion in mixed-technology assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U | Same 1 A / 600 V rating but higher VF (1.7 V typ); TO-220AC package | Requires heatsink above ~0.5 A; unsuitable for space-constrained PCBs | Select when higher VRRM margin is needed and thermal mass is available |
| ON Semi MUR105 | 1 A / 50 V, 50 ns trr, 1.15 V VF; same DO-41 package and RoHS status | Slower recovery increases switching loss at >300 kHz; slightly higher conduction loss | Acceptable drop-in for cost-sensitive non-automotive designs where 35 ns trr is not critical |
Compared with STTH1R06U and MUR105, SF11GHR0G delivers superior high-frequency efficiency due to its 35 ns trr and 0.95 V VF in a compact, AEC-Q101-qualified DO-41 package-making it optimal for automotive and portable power where size, speed, and reliability are jointly constrained.
Availability
SF11GHR0G is available at Aetrix Electronics and suitable for automotive body electronics, USB-C PD adapter secondary-side rectification, and industrial sensor transmitter power supplies requiring stable component supply and long-lifecycle support.
Supply support for SF11GHR0G 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.
SF11GHR0G belongs to TSC's SF1xG super fast rectifier family, engineered specifically for high-efficiency, high-reliability output rectification in automotive-grade and compact off-line power supplies.
FAQ
What is the maximum junction temperature rating for SF11GHR0G?
The SF11GHR0G has a maximum junction temperature (TJ MAX) of +150 °C, validated across its full operating range from –55 °C to +150 °C. This rating supports use in under-hood automotive environments and sealed industrial enclosures. The SF11GHR0G's 20 °C/W junction-to-lead thermal resistance allows effective heat transfer to PCB copper, helping maintain safe operating temperatures even at full 1 A DC current.
Is SF11GHR0G pin-compatible with standard DO-41 rectifiers like 1N4007?
Yes, SF11GHR0G uses the standard DO-204AL (DO-41) package with axial leads and cathode band marking, matching mechanical footprint and soldering requirements of legacy DO-41 rectifiers including 1N4007. However, SF11GHR0G is not a functional replacement for 1N4007 due to its super fast (35 ns) recovery versus 1N4007's 30 µs recovery-using it in low-frequency line rectification offers no benefit and may increase cost unnecessarily.
Does SF11GHR0G meet automotive qualification standards?
Yes, SF11GHR0G is explicitly AEC-Q101 qualified, as confirmed in the official Taiwan Semiconductor datasheet revision H2104. This qualification covers stress tests including HTGB, HTRB, TCT, and mechanical shock, validating its suitability for automotive body electronics, infotainment power supplies, and ADAS auxiliary rails-not just industrial or consumer use.
What is the reverse leakage current specification for SF11GHR0G at elevated temperature?
At 125 °C junction temperature and rated reverse voltage, SF11GHR0G exhibits a maximum reverse leakage current (IR) of 100 µA, per the datasheet's electrical specifications table. At 25 °C, IR is limited to 5 µA. This low leakage supports stable biasing in precision sensor power supplies and prevents drift in high-impedance feedback networks.
How does the forward voltage of SF11GHR0G compare to other 50 V super fast rectifiers?
SF11GHR0G specifies a typical forward voltage of 0.95 V at 1 A and 25 °C-among the lowest in its class. For comparison, ON Semiconductor's MUR105 specifies 1.15 V under identical conditions, and Diodes Inc.'s SB150 lists 1.05 V. This 0.20 V advantage directly reduces conduction loss by ~21 % at 1 A, improving thermal performance and system efficiency in compact power designs.
SF11GHR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF11GHR0G FAQ
1.How can I place an order for SF11GHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF11GHR0G 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 SF11GHR0G reliable?
The price and inventory of SF11GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF11GHR0G is usually 5 days.
3.What payment methods are accepted for SF11GHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF11GHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF11GHR0G?
SF11GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF11GHR0G 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 SF11GHR0G?
For technical support, including SF11GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF11GHR0G requirements.
6.How does Aetrix verify that SF11GHR0G is sourced from the original manufacturer or authorized distributors?
All SF11GHR0G 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 SF11GHR0G meets industry standards.
7.What is the process for return or replacement of SF11GHR0G?
All SF11GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF11GHR0G, 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 SF11GHR0G part is unused and in its original packaging.
Return procedure for SF11GHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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