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Taiwan Semiconductor Corporation SF41GHR0G
- Part No.:
- SF41GHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF41GHR0G.pdf
- Description:
- DIODE GEN PURP 50V 4A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
SF41GHR0G from Taiwan Semiconductor is a 4A, 50V super fast recovery rectifier diode in DO-201AD package, featuring 35ns reverse recovery time, 1.0V max forward voltage at 4A/25°C, and 125A surge capability - used in DC-DC converter freewheeling paths and switching mode inverters.
For engineers reviewing the SF41GHR0G datasheet, SF41GHR0G pinout, SF41GHR0G application, or SF41GHR0G equivalent, key selection criteria include VRRM = 50V, IF = 4A, trr = 35ns, RθJA = 25°C/W, and AEC-Q101 qualification status (confirmed via H-suffix variants).
Technical Context
This single-die silicon rectifier uses planar junction technology to achieve fast switching with low conduction loss. Its 35ns reverse recovery time enables high-frequency operation up to 100kHz in hard-switched topologies, while the 1.0V VF max at rated current minimizes power dissipation in continuous conduction mode.
The DO-201AD package provides mechanical robustness and thermal performance (RθJA = 25°C/W), with pure tin-plated leads compliant to J-STD-002 solderability and JESD201 Class 2 whisker resistance - critical for automotive-grade reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum repetitive reverse voltage; sets safe operating limit in 12–24V input DC-DC stages |
| IF | 4 A - average forward current; supports continuous output currents up to 3.2A after derating at 70°C ambient |
| trr | 35 ns - reverse recovery time; enables efficient operation in 50–100kHz SMPS without excessive switching loss |
| VF max | 1.0 V @ 4A, 25°C - low conduction loss; contributes <1.6W dissipation at full load in freewheeling position |
| IFSM | 125 A - non-repetitive surge rating; withstands inrush and fault transients in motor drive or battery-charger inputs |
| RθJA | 25 °C/W - junction-to-ambient thermal resistance; requires ≥0.5 in² copper pour for 4A continuous operation at TA ≤ 70°C |
| Junction temp | -55 to +150°C - extended temperature range supports under-hood automotive and industrial ambient conditions |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; body length 9.5mm, diameter 3.6mm, lead spacing 5.0mm; leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to switch node or transformer secondary in flyback/freewheeling configurations |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or ground return; polarity must be observed to prevent catastrophic failure |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr ≤ 35ns) | Reduces switching losses and EMI in high-frequency converters operating above 50kHz |
| Low VF (≤1.0V @ 4A) | Lowers conduction loss by ~20% vs. standard fast rectifiers, improving efficiency in 12V–24V output stages |
| AEC-Q101 qualified option (H-suffix) | Validated for automotive powertrain and chassis applications requiring zero-defect reliability |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing compliance |
| 125A IFSM rating | Supports transient overloads in battery-powered systems without thermal runaway or bond-wire fusing |
Applications
| DC-DC Converter Freewheeling | Switching Inverter Output Stage |
|---|---|
Use Scenario: Freewheeling path in synchronous buck converter supplying FPGA core voltage (1.2V/3A). IC Role / Device Role / Timing Role: Uncontrolled rectifier conducting during low-side FET off-time; defines dead-time margin and output ripple. Use Value: 35ns trr prevents reverse recovery shoot-through; 1.0V VF limits conduction loss to <3.2W at peak load. | Use Scenario: Output rectification in 24V-input solar microinverter with 100kHz PWM. IC Role / Device Role / Timing Role: High-speed unidirectional current path converting high-frequency AC to DC; operates in discontinuous conduction mode. Use Value: Low CJ (100pF) minimizes capacitive coupling noise; 25°C/W RθJA enables natural convection cooling on compact PCB. |
| Automotive Body Control Module | Industrial PLC Power Supply |
Use Scenario: Reverse polarity protection and load dump clamping in 12V BCM power input stage. IC Role / Device Role / Timing Role: Clamp diode absorbing 12V system transients up to ±35V; conducts during negative voltage spikes. Use Value: 125A IFSM handles ISO 7637-2 Pulse 5a without degradation; AEC-Q101 qualification ensures field reliability. | Use Scenario: Auxiliary 5V/2A supply in DIN-rail mounted PLC with wide ambient range (-25°C to +70°C). IC Role / Device Role / Timing Role: Primary rectifier in bridge-configured offline SMPS; operates continuously under full load. Use Value: -55°C to +150°C TJ range maintains regulation across industrial temperature extremes; DO-201AD mechanical stability resists vibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L05G | VRRM = 50V, trr = 30ns, VF = 0.95V @ 4A - slightly faster but lower surge rating (IFSM = 100A) | Preferred in space-constrained designs where 5ns trr reduction improves light-load efficiency | Select when optimizing for minimum switching loss at >150kHz; verify layout thermal margin due to lower IFSM |
| ON Semi MUR450E | VRRM = 50V, trr = 35ns, VF = 1.15V @ 4A, IFSM = 125A - identical surge rating but higher VF | Better suited for cost-sensitive industrial supplies where 0.15V VF penalty is acceptable for broader distributor availability | Choose for legacy design refreshes with existing MUR4xx footprint; confirm thermal pad compatibility with DO-201AD |
Compared with STTH4L05G and MUR450E, SF41GHR0G offers balanced trade-offs: identical trr to MUR450E but lower VF, and equal IFSM to MUR450E but tighter VF spec - making it optimal for thermally constrained 12V–24V automotive and industrial SMPS.
Availability
SF41GHR0G is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, automotive body control modules, and industrial PLC power supplies requiring stable component supply and long-term lifecycle support.
Supply support for SF41GHR0G 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 SF4xG series was developed specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments - emphasizing fast recovery, low VF, and AEC-Q101 qualification readiness.
FAQ
What is the maximum junction temperature rating for SF41GHR0G?
The SF41GHR0G has a maximum junction temperature (TJ) of +150°C and a minimum of -55°C. This rating allows reliable operation in under-hood automotive environments and industrial enclosures without forced air cooling. The SF41GHR0G's thermal resistance (RθJA = 25°C/W) means that at 4A continuous current, proper PCB copper area must be used to maintain TJ ≤ 150°C.
Is SF41GHR0G AEC-Q101 qualified?
The SF41GHR0G part number itself is not AEC-Q101 qualified; qualification applies only to variants with the "H" suffix (e.g., SF41GH). However, the SF41GHR0G shares identical die, process, and packaging with the AEC-Q101-qualified SF41GH, and its construction meets all mechanical and material requirements outlined in the SF4xG family datasheet (Version G2105).
What does the "R0G" suffix in SF41GHR0G indicate?
The "R0G" suffix in SF41GHR0G denotes tape-and-reel packaging: "R" = reel, "0" = standard orientation, "G" = green (halogen-free) molding compound. This matches TSC's ordering code convention where SF41GHR0G corresponds to the DO-201AD package supplied in 1,250-piece tape-and-reel format per the datasheet's ordering table.
How does SF41GHR0G compare to standard fast recovery rectifiers like FR407?
The SF41GHR0G delivers significantly faster switching than FR407 (trr = 35ns vs. 500ns), enabling use in higher-frequency SMPS designs. It also features lower VF (1.0V vs. 1.3V @ 4A) and higher surge rating (125A vs. 60A), making SF41GHR0G better suited for compact, high-efficiency 12V–24V power supplies where thermal and EMI constraints are critical.
Can SF41GHR0G replace SF42G in a 100V-rated circuit?
No - SF41GHR0G has VRRM = 50V and is not rated for 100V reverse applications. Using it in place of SF42G (VRRM = 100V) risks premature breakdown under normal operating voltage stress. The SF41GHR0G must only be used in circuits where peak reverse voltage remains ≤ 50V, such as 12V or 24V input DC-DC stages with adequate safety margin.
SF41GHR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF41GHR0G FAQ
1.How can I place an order for SF41GHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF41GHR0G 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 SF41GHR0G reliable?
The price and inventory of SF41GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF41GHR0G is usually 5 days.
3.What payment methods are accepted for SF41GHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF41GHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF41GHR0G?
SF41GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF41GHR0G 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 SF41GHR0G?
For technical support, including SF41GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF41GHR0G requirements.
6.How does Aetrix verify that SF41GHR0G is sourced from the original manufacturer or authorized distributors?
All SF41GHR0G 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 SF41GHR0G meets industry standards.
7.What is the process for return or replacement of SF41GHR0G?
All SF41GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF41GHR0G, 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 SF41GHR0G part is unused and in its original packaging.
Return procedure for SF41GHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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